Circuitos Integrados

MAX172BCNG

MAX172BCNG - 12-Bit 100kSPS CMOS ADC with On-Chip Reference | DIP-24

The Maxim Integrated MAX172BCNG (now part of Analog Devices) is a complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) that combines high-speed conversion, low power consumption, and an integrated buried-zener voltage reference in a single 24-pin PDIP (NG) through-hole package. It delivers 10us conversion time (100 kSPS throughput), single +5V supply operation, and parallel data output for direct microprocessor interfacing. An SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm across an internal capacitive DAC to digitize an analog input in N clock cycles for N-bit resolution. The MAX172 sits in the broader hierarchy of ADC architectures: it is a SAR ADC, which itself is a sub-type of medium-speed, medium-resolution data converter (12 bits, 100 kSPS) sitting between slower integrating ADCs (e.g., dual-slope) and faster flash or pipelined ADCs. SAR ADCs are favored when designers need deterministic latency, zero pipeline delay, and a small external component count - making the MAX172 a typical choice for embedded instrumentation front-ends. Key features include a built-in buried-zener reference for low drift and low noise, ±5V input range (unipolar 0 to 5V or bipolar ±5V via external scaling), three-state outputs for direct bus connection, and an on-chip clock. The buried-zener reference topology provides better long-term stability and lower temperature drift than bandgap references common in CMOS ADCs of this era, which directly improves absolute-accuracy and gain-drift performance across -40C to +85C commercial operating temperatures. Typical applications include process control, data acquisition boards, panel meters, weigh scales, digital signal processor front-ends, and any 12-bit measurement channel where simple parallel-readback from a microcontroller or FPGA is preferred over a serial interface. When designing with this part, note that 12-bit absolute accuracy requires careful analog front-end design (input amplifier settling, charge-kickback filtering) and that the through-hole PDIP package is preferred for hand-soldered prototypes and industrial control modules rather than high-density SMT boards.

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MAX172BEWG

MAX172BEWG - 12-Bit 100kSPS CMOS ADC | Maxim Integrated

The Maxim Integrated MAX172BEWG is a complete 12-bit analog-to-digital converter (ADC) that combines 10 microsecond conversion time, low power consumption, and an on-chip buried-zener voltage reference in a 24-pin wide-body SOIC package. The device uses a successive-approximation register (SAR) architecture with on-chip track-and-hold and operates from a single +5V analog supply with a separate digital supply pin for low digital-noise coupling. The MAX172BEWG is specified for the extended-industrial -40C to +85C temperature range (denoted by the 'E' suffix) and uses the Maxim 24-SOIC wide-body 0.295-inch land pattern. An ADC is a mixed-signal integrated circuit that converts a continuous analog input voltage into a discrete N-bit binary code suitable for digital processing. In the hierarchy of data-converter ICs, the MAX172 sits inside the SAR ADC family, which itself is a sub-category of Nyquist-rate ADCs, distinct from sigma-delta (oversampling) and pipelined converters. SAR ADCs are valued for deterministic latency, single-cycle conversions, and excellent DC-accuracy at moderate sample rates, making them the workhorse for data-acquisition front-ends and instrumentation. Key features of the MAX172BEWG include 12-bit resolution with no missing codes, +/-0.5 LSB integral nonlinearity (typical), a +5V single supply with separate V+ and VDIG inputs, parallel microprocessor interface (8+4 multiplexed or straight binary), and a buried-zener reference that provides low drift and low noise. The ADC also provides a +2.5V or +5V reference output drive capability for ratiometric or absolute conversions, and a hardware Read strobe plus mode-locked BUSY/INT line for interrupt-driven microcontrollers. Architecturally, the device integrates a precision CMOS comparator, a switched-capacitor DAC based on a thin-film ladder, a buried-zener reference, a sample-and-hold stage, and digital timing/control logic. The buried zener (rather than a bandgap) yields the reference noise and drift performance needed for 12-bit absolute accuracy and supports a long-term drift of typically less than 30 ppm per 1000 hours. Typical applications include high-speed data-acquisition boards, digital panel meters, process-control analog inputs, instrumentation transducer read-out, and remote sensor analog front-ends. Industrial PLC analog input modules and laboratory bench instruments commonly use this converter because the 24-SOIC wide package is still acceptable in through-hole-style front ends and the part is fully specified over the industrial temperature window. For best accuracy, decouple V+ and VDIG at the IC pins with separate 0.1 microfarad ceramic capacitors in parallel with 10 microfarad tantalum or aluminum-polymer bypass capacitors, and short the analog and digital grounds at the AGND-to-DGND pin only. The internal reference drives up to 5 mA but is sensitive to capacitive loads - keep the REF pin bypassed with a 4.7 microfarad to 22 microfarad low-ESR tantalum or ceramic capacitor. This page synthesizes distributor pricing, pinout-accurate SOIC-24 alternatives, and practical design notes that complement the manufacturer datasheet rather than restating its tables.

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MAX172BMRG/883B

MAX172BMRG/883B - 12-Bit 100ksps SAR ADC, 883B Military | Maxim

The Maxim Integrated (now part of Analog Devices) MAX172BMRG/883B is a 12-bit, 100 ksps successive-approximation analog-to-digital converter (ADC) housed in a 24-pin CERDIP-24 (RG) through-hole package, qualified to MIL-STD-883B for military and aerospace applications. Its three headline parameters are 12 bits of resolution, 100 ksps sampling rate, and a 0V to 5V unipolar analog input range, all delivered with low-power CMOS operation and a microprocessor-compatible parallel interface. An ADC (analog-to-digital converter) is a data-acquisition IC that samples a continuous analog voltage and converts it into a discrete digital code for processing by a microcontroller, DSP, or FPGA. Successive-approximation (SAR) ADCs, the architecture used in the MAX172 family, use a binary-search algorithm driven by an internal DAC and comparator to resolve one bit per clock cycle, achieving the best balance of speed, resolution, and power for instrumentation-grade measurement. Within the converter hierarchy, the MAX172 sits under SAR -> ADC -> data converter -> mixed-signal IC -> semiconductor. Key features include 12-bit resolution with no missing codes, 100 ksps throughput, a standard microprocessor bus interface with three-state outputs controlled by RD and CS, 90 ns data-access and 75 ns bus-release times for wait-state-free CPU read cycles, and a complete on-chip track/hold and clock. The 883B MIL-STD screening guarantees operation across the full -55C to +125C military temperature range, with hermetic CERDIP packaging for high-reliability environments. The MAX172 uses a ratiometric successive-approximation architecture with an internal buried-zap reference ladder and self-calibrating comparator, achieving guaranteed 12-bit linearity over temperature. It accepts a 0V to 5V unipolar analog input scaled to the +5V analog supply, and the parallel data bus simplifies interface to 8-bit and 16-bit microprocessors without external glue logic. Typical applications include military and aerospace data acquisition systems, process-control instrumentation, portable battery-powered measurement, and industrial sensor signal conditioning. In each case, the combination of low power, fast bus access times, and 883B screening makes the part well-suited to harsh-environment or long-life programs. When designing with this ADC, the analog input impedance and source-impedance drive requirements must be respected: the MAX172 requires a low-source-impedance (under a few hundred ohms) input buffer or low-pass RC, and the +5V AVdd must be properly decoupled to minimize conversion noise. Designers should also evaluate using the surface-mount / industrial-grade MAX172 family members for cost-sensitive designs not requiring MIL-STD-883B screening. This page synthesizes distributor pricing, MIL-STD drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the MAX172BMRG/883B for next-generation military data-acquisition designs.

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MAX173CNG+

MAX173CNG+ - 10-Bit 200ksps SAR ADC | Analog Devices

The Analog Devices MAX173CNG+ is a 10-bit, single-channel successive-approximation analog-to-digital converter with a 200 ksps conversion rate, a 5.25 V supply, and a 24-pin PDIP package. Its complete conversion process takes approximately 5 microseconds, making it suitable for compact data-acquisition and control systems that require moderate sampling speed and resolution. An ADC is an interface IC that converts an analog input voltage into a digital number for processing by a microcontroller, logic device, or other digital system. The MAX173CNG+ belongs to the ADC hierarchy as a single-channel SAR ADC. Successive-approximation operation internally compares the unknown input with a controlled reference and produces a digital result after a sequence of comparison steps. The principal device characteristics visible in the verified distributor and manufacturer-related records are a 10-bit resolution, one analog input, SAR architecture, 200 ksps throughput, 5.25 V operating voltage, and a 24-pin through-hole PDIP package. These specifications make the converter appropriate for industrial instrumentation, sensor interfaces, process-control loops, and embedded measurement systems that do not require simultaneous sampling or resolution above 10 bits. The MAX173CNG+ uses an internal reference, as shown in the available comparison data, and accepts a single-ended input. A single-ended architecture simplifies the signal path because the input is referenced to ground rather than requiring a differential pair. The 10-bit result provides 1,024 possible codes, while the 200 ksps rate supports sampling intervals of approximately 5 microseconds. The 24-pin PDIP package is suitable for through-hole assembly and prototypes where component accessibility and straightforward socket or PCB insertion are useful. Its larger footprint differs from modern surface-mount ADC packages, so designers should confirm board area and insertion requirements before selecting it for new compact products. The main design consideration is signal conditioning. The ADC can only reproduce an input that remains inside its valid input range and is presented with a source impedance compatible with the internal sampling network. External buffering, filtering, grounding, and reference-noise control can materially affect whether the converter achieves its intended measurement accuracy. This page consolidates verified distributor specifications, lifecycle-oriented sourcing information, application guidance, and a conservative compatibility assessment. It does not infer missing electrical limits or claim substitute parts as drop-in replacements unless the available cross-reference evidence establishes the required package and pin compatibility.

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MAX173CWG

MAX173CWG - 10-Bit SAR ADC with Reference | 24-SOIC | Maxim

The Maxim Integrated MAX173CWG is a 10-bit, single-input, successive-approximation analog-to-digital converter (SAR ADC) with an internal reference, housed in a 24-pin wide-body SOIC package. It accepts a unipolar analog input and produces a parallel digital output, with on-chip sample-and-hold and reference buffer supporting single-supply operation in the commercial temperature range. A SAR ADC (successive-approximation register analog-to-digital converter) is a type of data converter that converts an analog input signal into a digital code by iteratively comparing the sampled input against an internal DAC. It belongs to the broader data-converter hierarchy: ADC -> data converter -> data acquisition IC -> signal chain -> mixed-signal semiconductor. SAR ADCs offer deterministic latency (one conversion per N clock cycles), low power consumption, and high accuracy at moderate sample rates, making them preferred for multiplexed channel monitoring, sensor readout, and instrumentation front ends. The MAX173 is offered in commercial and extended-temperature grades, supports TTL/CMOS-compatible parallel outputs, and includes an internal reference that eliminates external precision-reference components, simplifying the BOM in panel-meter, pen-tracer, and process-control designs. It uses a ratiometric conversion principle that allows the reading to track any reference or supply voltage applied externally for absolute measurements. Key features include 10-bit resolution, on-chip track/hold amplifier, internal reference, single +5V (or dual ±5V) supply operation, and an easy parallel interface to microcontrollers or logic arrays. The wide 24-pin SOIC footprint provides ample pin spacing for hand-assembly and inspection in legacy industrial designs. Typical applications include panel meters and digital voltmeters, process-control analog front ends, pen plotters and chart recorders, industrial sensor readouts, and computer-peripheral analog interfaces. The combination of internal reference and parallel interface supports legacy 5V microcontroller systems where a compact ADC with deterministic conversion time is required. When designing with the MAX173, ensure clock-frequency selection matches the converter's acquisition time. The internal reference requires adequate bypass capacitance on the REF pin to reject logic-noise coupling; in ratiometric mode the reference voltage and the sensor excitation share the same supply to cancel drift. This page synthesizes distributor pricing, drop-in alternatives sourced from manufacturer parametric databases, and practical design notes for the MAX173CWG that are not consolidated in the Maxim datasheet.

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MAX174ACWI

MAX174ACWI - 12-Bit 125ksps SAR ADC, 28-SOIC | Maxim Integrated

The Maxim Integrated MAX174ACWI is a complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) in a 28-pin wide-body SOIC package, providing a maximum conversion time of 8 microseconds (125 ksps) and an integrated buried-Zener voltage reference. This part belongs to the industry-standard MAX174/MX574A/MX674A ADC family, where the MAX174 is the highest-speed variant and the MX574A the lowest-power. It combines the ADC core, on-chip clock, voltage reference, and digital I/O on a single monolithic die, eliminating the need for external reference and timing components in most precision instrumentation designs. A successive-approximation ADC (SAR ADC) is a type of Nyquist-rate data converter that resolves an analog input to N bits by performing a binary search through an internal capacitive DAC, comparing the result against the input on each clock cycle. Within the broader hierarchy, the MAX174 belongs to the precision SAR ADC segment of the data-converter market, which sits under the analog-to-digital converter (ADC) family, itself a sub-category of data acquisition and signal-chain ICs. SAR ADCs deliver a single conversion on demand rather than continuously oversampling, giving them deterministic latency and no pipeline delay, which is why they remain the preferred architecture for multiplexed data acquisition, industrial process control, and precision instrumentation front-ends. Key features include 12-bit resolution with no missing codes, an integrated 10.000 V buried-Zener reference (the source of the part's '+10V Precision ADC' moniker), a bipolar input range of ±5 V or ±10 V on a single +5 V supply, and three-state digital outputs that interface directly to 8-bit and 16-bit microprocessors. The -AC suffix designates the commercial 0 °C to +70 °C operating-temperature grade, while the -AE part offers the -40 °C to +85 °C extended grade in the same SOIC-28 outline. Power consumption is typically around 100 mW during conversion. The MAX174 uses a capacitive-charge-redistribution DAC with a thin-film attenuator ladder at the input, which is why it achieves both high speed (8 µs max conversion) and 12-bit linearity without the laser-trimming required by older bipolar SAR architectures. The internal reference and clock remove two common external components, shrinking the BOM and improving long-term gain stability. Typical applications include process-control front-ends, instrumentation digitizers, PC-based data-acquisition boards, and test-and-measurement equipment. The integrated reference and three-state bus interface also make it well suited to legacy retrofit designs where a discrete-component ADC has been replaced by this single-chip solution. Industrial PLC analog input modules and medical-instrumentation signal paths are common use cases. When designing with this part, ensure that the input signal source can drive the 4 kΩ analog input impedance without introducing significant gain error, and that bypass capacitors are placed within 1 cm of the supply pins. The wide SOIC-28 footprint provides adequate thermal margin at the typical 100 mW dissipation, but reflow profile should respect the JEDEC J-STD-020 MSL rating for the commercial -AC temperature grade. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not collected in the manufacturer datasheet alone, helping engineers evaluate the MAX174ACWI quickly for new designs or EOL retrofits.

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MAX174AEPI

MAX174AEPI - 12-Bit 8µs SAR ADC, 28-PDIP | Maxim Integrated

The Maxim Integrated MAX174AEPI is an industry-standard, complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) with a maximum conversion time of 8 microseconds, an internal clock, an internal buried-zener voltage reference, and a parallel microprocessor-compatible interface, all housed in a 28-pin PDIP through-hole package. What is a SAR ADC? A successive-approximation register analog-to-digital converter is a type of ADC that converts an analog input to a digital output by binary-searching through internal weighted capacitors or resistors, one bit per clock cycle. SAR ADCs sit in the broader hierarchy of ADC architectures, between flash converters (faster but lower resolution) and sigma-delta converters (slower but higher resolution), and are widely used in industrial process control, data acquisition, and instrumentation where 10-16 bits at 100 kSPS to 1 MSPS are required. Key features of the MAX174AEPI include a throughput rate compatible with its 8 us conversion time, +/-10V unipolar or +/-5V, 0V to +10V, or +/-5V bipolar analog input ranges, three-state output buffers, and an industry-standard pinout that simplifies design-in to systems originally built around the AD574A/AD674A/AD774A. The Maxim BiCMOS process reduces power dissipation roughly three times compared to the older AD574A while keeping drop-in compatibility for many legacy designs. Architecturally, the device combines a precision laser-trimmed buried-zener reference, a high-speed successive-approximation register, a charge-redistribution DAC, a clock oscillator, a comparator, and three-state output latches. Internal scaling resistors set the input ranges, and external pins support offset and gain trim for system calibration. The maximum conversion time of 8 us makes it well-suited to multiplexed data-acquisition systems where many channels must be scanned sequentially at moderate rates. Typical applications include industrial process-control front ends, multiplexed data-acquisition systems, digital signal-processing front ends, and test-and-measurement instrumentation. The wide input range options also suit it to motor-control current-sense digitization when paired with a shunt amplifier. Industrial temperature grade (-40C to +85C) makes the 'E' suffix suitable for factory-floor and outdoor equipment. When designing, observe the supply sequencing requirement (digital supply +5V must come up before or simultaneously with the analog +12V/-12V supplies) to avoid latch-up, and place the 100 nF bypass capacitors as close as possible to each supply pin. Because the 'I' suffix designates industrial grade, verify any field-deployed designs against the published temperature specifications. This page synthesizes distributor pricing, same-family drop-in alternatives (MAX174BCPI, MAX174ACWI), and practical design notes not found in the manufacturer datasheet alone.

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MAX174AEPI+

MAX174AEPI+ - 12-Bit SAR ADC, 28-PDIP, BiCMOS | Maxim Integrated

The Maxim Integrated MAX174AEPI+ is a complete 12-bit analog-to-digital converter (ADC) that combines a successive-approximation register (SAR) architecture, an on-chip clock, a buried-zener voltage reference, and a digital interface in a single 28-pin PDIP through-hole package. The device accepts one analog input channel and provides a parallel word-access output, suiting it to data-acquisition front ends where an external microcontroller or DSP must read conversion results in a single bus cycle. A SAR ADC is a type of analog-to-digital converter that uses a binary-search algorithm implemented with a charge-redistribution DAC to resolve the input voltage against a precision reference, producing one digital code per conversion at low latency. SAR ADCs sit within the broader hierarchy of analog-to-digital converters (ADCs) -> data converters -> mixed-signal ICs -> integrated circuits, and are valued for their deterministic latency, low power, and ease of use compared to delta-sigma or pipeline architectures. Key features of the MAX174AEPI+ include a 12-bit resolution, a single analog input, integrated reference, and Maxim's BiCMOS construction that reduces power dissipation roughly three times compared to all-bipolar predecessors such as the AD574A. The converter is specified for industrial temperature grades and ships in a plastic DIP-28 package with through-hole leads. The MAX174 belongs to Maxim's industry-standard 12-bit ADC family that also includes the MX574A and MX674A variants. All three share the same control-logic footprint and pinout conventions, enabling board-level design reuse when migrating between speed grades or supply-voltage options within the family. The MAX174AEPI+ is the +5 V operation variant of the MAX174 family. Typical applications include industrial process control, instrumentation, data loggers, and any system requiring a low-power, complete 12-bit ADC with a parallel interface. The integrated reference and clock reduce external component count, which is advantageous in legacy designs and replacement scenarios. When designing with this part, ensure the analog input signal is properly buffered and that the +5 V supply is decoupled with a 10 uF tantalum plus 0.1 uF ceramic combination near the device. The internal reference stability is sufficient for 12-bit accuracy but cannot source heavy external loads. This page synthesizes distributor pricing, parametric comparison with same-family Maxim parts, and practical design notes not found in the manufacturer datasheet alone, giving procurement and design engineers a single reference for the MAX174AEPI+.

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MAX174BC/D-C10306

MAX174BC/D-C10306 - 12-Bit 8μs SAR ADC Die | Maxim Integrated

The Analog Devices / Maxim Integrated MAX174BC/D-C10306 is a complete 12-bit analog-to-digital converter (ADC) supplied as a bare die (wafer / chip form), implementing successive-approximation (SAR) conversion with an 8 μs maximum conversion time and on-chip clock, buried-zener voltage reference, and digital interface logic. The MAX174 family combines the precision of a 12-bit ADC with high throughput and low power consumption, integrating all analog and digital functions onto a single monolithic die. Conversion rates reach up to 125 kSPS at full 12-bit resolution. An ADC (Analog-to-Digital Converter) is a data-acquisition component that converts a continuous analog input voltage into a discrete binary code suitable for digital processing. The SAR (Successive Approximation Register) architecture uses an internal DAC and comparator to resolve one bit per clock cycle, achieving an excellent trade-off between speed, accuracy, and power consumption. Positioned in the broader signal-chain taxonomy, ADCs belong to the data-converter family (ADC/DAC), sit inside the signal-conditioning hierarchy, and ultimately fall under the broader category of mixed-signal semiconductor ICs. Modern SAR ADCs dominate applications in industrial control, instrumentation, and embedded data acquisition. The MAX174 draws only 175 mW from a +5 V and ±12 V or ±15 V analog supply set, supports unipolar or bipolar input ranges (0 V to +10 V, 0 V to +20 V, ±5 V, ±10 V), and provides three-state output latches for direct bus interfacing to 8-, 12-, or 16-bit microprocessors. A precision buried-zener reference delivers ±10 V or 0 V to +10 V output options. The die-level packaging suits designers who require chip-on-board (CoB) or hybrid assembly for space-constrained or ruggedized systems. Typical applications span industrial process-control loops, multi-channel data-acquisition front ends, instrumentation front panels, precision sensor signal conditioning, and medical imaging subsystems. Because the MAX174 integrates clock, reference, and output latches, designers can replace multi-chip ADC solutions with a single die, shrinking BOM count and PCB footprint in harsh-environment or miniaturized assemblies. When designing with the bare-die MAX174BC/D-C10306, pay careful attention to die-handling protocols and ESD safeguards — die-level packaging requires wire bonding or flip-chip attach rather than standard SMT placement. The three-state output bus and MODE pin simplify μP interface design, allowing direct connection to 8-bit data buses without external latches. Pricing references in this page are quoted as of 2026-10-15.

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MAX174BCPI

MAX174BCPI - 12-Bit 8µs SAR ADC with Reference | Maxim Integrated | PDIP-28

The Maxim Integrated MAX174BCPI is an industry-standard, complete 12-bit analog-to-digital converter (ADC) in a 28-pin PDIP package, featuring an on-chip voltage reference, internal clock, and 8µs maximum conversion time. It is a successive-approximation register (SAR) ADC with one analog input channel, a parallel digital interface, and bipolar input ranges of ±5V, ±10V, 0-10V, and 0-15V. The integrated 10V buried-zener reference and clock oscillator eliminate the need for external components, simplifying precision data-acquisition designs in industrial instrumentation. A SAR ADC is a successive-approximation-register analog-to-digital converter, which is a subtype of ADC that uses a binary-search algorithm against an internal DAC to digitize an analog input in N clock cycles for N bits of resolution. SAR ADCs occupy the middle ground in the ADC taxonomy: they offer higher speed than integrating or delta-sigma converters but lower speed than flash ADCs, while delivering excellent DC accuracy, low latency, and low power consumption without the switching noise inherent to delta-sigma architectures. The MAX174 belongs to the broader category of data-acquisition ICs, which sit within signal-chain components and ultimately within the power-management-and-analog IC family of semiconductors. Key features include 12-bit resolution with no missing codes, ±0.5 LSB maximum integral nonlinearity (INL), and a track/hold amplifier capable of digitizing signals up to its Nyquist bandwidth. The device operates from ±12V or ±15V supplies, drawing typically 80 mW, with a power-down mode that reduces consumption to under 5 mW between conversions. The 8µs conversion time translates to a 125 kHz throughput, suitable for high-speed industrial control loops and multi-channel multiplexing systems. The internal architecture uses a capacitive-charge-redistribution DAC for the SAR loop, a precision buried-zener reference laser-trimmed for low drift, and a self-biasing bipolar front end that accepts true bipolar input signals without external signal conditioning. The device includes control logic that allows direct connection to microprocessors via the 12-bit parallel bus, with standard CS, RD, and BUSY handshake signals compatible with 8080-family processor interfaces. Typical applications include industrial process-control data acquisition, digital panel meters, instrumentation amplifiers digitizing strain-gauge signals, multi-channel data-logging multiplexed systems, and benchtop test-and-measurement equipment. The wide bipolar input range makes it particularly attractive in legacy 12-bit data-acquisition boards where direct connection to ±10V transducer outputs is required without external resistor attenuators or level-shift circuits. When designing with this device, ensure the power-supply bypass network uses 10 µF tantalum in parallel with 0.1 µF ceramic at each supply pin; failure to provide adequate decoupling degrades the reference noise and INL. The analog input must be protected with an external op-amp buffer or low-impedance driving source to avoid kick-back from the internal capacitive DAC, which would otherwise introduce settling errors at the rated 8 µs conversion speed. This page synthesizes distributor pricing, drop-in alternatives, application guidance, and design notes not aggregated on the manufacturer datasheet, providing an engineer-ready summary for sourcing and design-in decisions.

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MAX174BCWI+

MAX174BCWI+ - 12-Bit 125 kSPS Complete ADC | Maxim Integrated

The Maxim Integrated (now Analog Devices) MAX174BCWI+ is an industry-standard, complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) that combines high speed, low power consumption, and on-chip clock and voltage reference in a single IC. It samples at up to 125 kSPS, accepts a 0 V to +10 V or 0 V to +20 V unipolar analog input range, and offers bipolar ranges of ±5 V and ±10 V when configured for true bipolar operation. Housed in a wide-body 28-pin SOIC package, the MAX174BCWI+ is a member of Maxim's classic MAX174/MX574A/MX674A family that has shipped in high-volume instrumentation designs since the 1980s. Key specifications include 12-bit resolution with no missing codes, a 0 V to +10 V or 0 V to +20 V input range (jumper or strap selectable), a 10 V on-chip buried-zener reference (TrimDAC-compatible, ±0.3% accuracy grade B), a parallel microprocessor interface, and a low supply requirement of +5 V plus optionally ±12 V to ±15 V for analog inputs. Conversion time is 8 µs at full throughput, with three interface modes for tying to 8-bit, 12-bit, or 16-bit data buses. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a widely used ADC architecture that uses a binary search algorithm to resolve the input voltage one bit per clock cycle, achieving an excellent trade-off between speed, resolution, and power consumption. SAR ADCs sit at the second tier of the data-converter hierarchy: faster than integrating ADCs, slower than flash or pipeline ADCs, but offering very high DC accuracy and low latency. They occupy a key role in the broader power management and signal-conditioning IC family, alongside DACs, references, and multiplexers. The MAX174BCWI+ uses Maxim's BiCMOS construction, which reduces power dissipation relative to older bipolar-only designs. The internal reference and clock reduce external component count to a bare minimum: a handful of bypass capacitors and decoupling at the supply pins are sufficient for most applications. The device can also be operated in ROM mode for reduced-microcontroller designs. Typical applications include process-control data acquisition boards, instrumentation front-ends, motor-control feedback loops, medical monitoring equipment, and any high-accuracy industrial measurement requiring an easy-to-interface 12-bit ADC with built-in reference. The wide analog input range (up to ±10 V bipolar) makes the part especially attractive in legacy industrial systems that use ±10 V or 4 mA to 20 mA signaling. Pairing the MAX174BCWI+ with a precision op-amp front-end (such as the MAX4250) and an instrumentation amp (such as the MAX4194) builds a complete 12-bit analog input module. When designing with the MAX174BCWI+, observe the Analog Devices datasheet supply-decoupling recommendation: place 10 µF tantalum and 0.1 µF ceramic bypass capacitors as close to the supply pins as possible. Re-calibrate the internal reference at first startup using the TrimDAC inputs if ±1 LSB absolute accuracy is required, especially at the limits of the operating temperature range. This page synthesizes distributor pricing, drop-in same-brand alternatives, and practical design notes that complement the manufacturer datasheet - ideal for engineers evaluating the MAX174BCWI+ for new designs or as a drop-in for an end-of-life replacement in an existing board.

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MAX174BEPI

MAX174BEPI - 12-Bit Industry-Standard ADC, 28-PDIP | Maxim Integrated

The Maxim Integrated MAX174BEPI is an industry-standard 12-bit successive-approximation analog-to-digital converter (SAR ADC) with an integrated reference, on-chip clock, and tri-state output buffers, housed in a 28-pin plastic DIP (PDIP-28) package. It accepts input ranges of 0 to +10V or 0 to +20V unipolar and +/-5V or +/-10V bipolar through pin strapping, and supports standard 8-, 12-, and 16-bit microprocessor bus interfaces. According to the MAX174 datasheet family, this part provides 12-bit resolution with no missing codes and is part of the MAX174/MX574A/MX674A ADC family. An ADC (analog-to-digital converter) is a data converter that translates a continuous analog voltage or current into a discrete digital code, enabling microprocessors and digital signal processors to acquire real-world signals. Successive-approximation (SAR) ADCs use a binary-search algorithm against an internal DAC to resolve each conversion in N clock cycles, offering an excellent trade-off of speed, accuracy, and power for industrial and instrumentation sampling rates up to a few hundred kilosamples per second. Within the converter hierarchy, SAR ADCs sit between flash converters (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, slowest); the MAX174 family specifically targets 12-bit industrial measurement. Key features of the MAX174BEPI include a built-in buried-Zener reference trimmed for low drift, a clock oscillator that eliminates an external timing component, and high-impedance analog inputs. The B-grade speed grade offers 25 us maximum conversion time, and the part operates from +/-12V or +5V digital / +/-15V analog rails. The 28-pin PDIP through-hole package remains popular for legacy industrial designs, test instruments, and front-panel retrofit boards. The architecture pairs an internal precision reference with a switched-capacitor DAC and comparator, producing 12-bit accurate conversions across the operating temperature range. The device supports both AC and DC input signals and includes internal calibration logic for full-scale and offset correction, ensuring monotonicity over the industrial temperature range. Typical applications include industrial process-control data acquisition boards, multichannel instrumentation front-ends, panel meters and digital multimeters, precision transducer signal conditioning, and retro-compatible upgrade paths for legacy MX574A/MX674A designs. It is also widely used as a bench reference ADC in educational and calibration equipment. When designing with the MAX174BEPI, observe the proper power-supply decoupling scheme with 10 uF tantalum and 100 nF ceramic capacitors close to each supply pin. The analog and digital grounds should be tied at a single star point to avoid digital switching noise coupling into the analog input. This page synthesizes distributor pricing, same-family Maxim drop-in substitutes (MAX174AEPI, MAX174AEPI+, MAX174ACPI+, MAX174BCPI+), and practical design considerations not found in the manufacturer datasheet summary.

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MAX174CCWI+

MAX174CCWI+ - 12-Bit 125ksps SAR ADC with 10V Input Range | Maxim Integrated

The Maxim Integrated MAX174CCWI+ is a 12-bit successive-approximation analog-to-digital converter (SAR ADC) with a 125 ksps sampling rate and an integrated 4 MHz buried-zener reference, housed in a 28-pin wide-body SOIC package. The converter accepts full-scale analog input ranges of 0 to +10V (unipolar) or ±5V, ±10V (bipolar) when configured with appropriate external scaling resistors, and interfaces to a microprocessor through a unidirectional or bidirectional parallel data bus. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that translates a continuous analog voltage into a discrete digital code, forming the front-end of every digital signal acquisition system. SAR (successive-approximation register) ADCs use a binary-search algorithm with an internal DAC, delivering deterministic latency, low power consumption, and excellent static linearity - making them the standard choice for industrial process control, instrumentation, and multi-channel data-acquisition boards. Key features include 12-bit resolution with no missing codes, ±1 LSB maximum integral nonlinearity (INL), ±0.5 LSB differential nonlinearity (DNL), and a 25 µs typical acquisition time. The MAX174 shares an industry-standard pinout with the MX574A and MX674A, the latter two being 12-bit and 12-bit high-speed variants respectively. An on-chip clock oscillator requires no external crystal, and internal buried-zener reference maintains ±0.05%/week long-term stability. The architecture employs a precision charge-redistribution DAC array together with a low-noise comparator and a successive-approximation register; the input signal is sampled onto a 5 pF acquisition capacitor during the acquisition phase, and conversion proceeds under control of the on-chip oscillator. The MAX174 is offered in commercial (0°C to +70°C, MAX174CCWI) and extended (-40°C to +85°C) grades. Typical applications include industrial process-control loops, multi-channel data-acquisition front ends, panel meters, digital panel instrumentation, and audio spectrum analyzers. Designers frequently choose this part when a complete, ready-to-use 12-bit ADC with an internal reference and 8/16-bit parallel bus simplifies board layout. When designing with the MAX174, calculate the analog input scaling resistors precisely to avoid exceeding the 25 V absolute maximum at any analog input pin, and add 0.1 µF bypass capacitors plus a 10 µF tantalum bulk capacitor to the +VCC and -VSS pins within 7 mm of the package. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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MAX174CEPI

MAX174CEPI - 12-Bit 125ksps ADC | Maxim Integrated / ADI

The Maxim Integrated MAX174CEPI (now supplied by Analog Devices) is an industry-standard, complete 12-bit analog-to-digital converter (ADC) that combines high speed, low power dissipation, and on-chip clock plus voltage reference in a single 28-pin PDIP (DIP-28, plastic through-hole) package. Built on Maxim's BiCMOS process, it delivers up to 125 ksps conversion rate with a maximum conversion time of 8 microseconds, while consuming only about 150 mW of power - roughly one-third the dissipation of comparable 12-bit ADCs of its era. A successive-approximation ADC (SAR ADC) is one of the most widely used ADC architectures because it provides deterministic, low-latency conversions and excellent DC accuracy. In the hierarchy of data-converter categories, the SAR ADC sits alongside flash, sigma-delta, and pipeline ADCs; compared with sigma-delta, it offers wider bandwidth and lower latency, and compared with flash, it provides much higher resolution at modest cost. The MAX174 sits at the high-speed end of the 12-bit SAR family and is intended for parallel (parallel-byte) microprocessor interfaces. Key features of the MAX174CEPI include pin-strappable analog input ranges of 0 to +10 V or 0 to +20 V unipolar, plus bipolar ranges of ±5 V or ±10 V - covering the full range of industrial process-control signal levels. The on-chip buried-zener reference and internal clock remove the need for external precision components, while a standard microprocessor interface architecture (with separate 8/12/16-bit bus compatibility) simplifies digital hook-up. The device offers three-state output buffers, monotonic performance (no missing codes over the operating range), and a control line that lets the user select 8-bit or full 12-bit conversion. Typical applications include high-speed data-acquisition front ends, industrial process-control input boards, digital signal processing front ends, and audio/speech digitisation. It is also widely used in instrumentation and telemetry equipment where 12-bit resolution and 8 microsecond conversion time are sufficient for the signal bandwidth involved. When designing with this part, observe the standard Maxim bipolar-input conditioning recommendations: bypass all supply pins close to the IC and add a 100 ohm series resistor on the analog input to drive the internal buffer cleanly. Operate from +/-15V and +5V supplies as called out in the datasheet. Because this is a through-hole 28-pin DIP, it suits legacy industrial and instrumentation designs rather than new high-density SMT layouts.

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MAX176ACPA

MAX176ACPA - 12-Bit 250ksps Serial ADC, 8-PDIP | Maxim

The Maxim MAX176ACPA is a 12-bit, 250 ksps, serial-output analog-to-digital converter (ADC) integrated in an 8-pin PDIP package, designed for high-speed data acquisition in industrial process control, instrumentation, and embedded systems. It combines a 0.4 us maximum acquisition-time track-and-hold amplifier, a 3.5 us successive-approximation ADC core, and an on-chip buried-zener voltage reference, delivering complete single-chip conversion functionality with serial interface output. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog signals and converts them into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. Within the broader taxonomy, the MAX176ACPA belongs to SAR (Successive Approximation Register) ADCs -> data converters -> signal chain ICs -> mixed-signal semiconductors. SAR ADCs are favored over delta-sigma and pipeline architectures when low latency and deterministic throughput are required, particularly in multiplexed multi-channel systems and servo-loop control applications. Key differentiating features include the 250 ksps guaranteed throughput, 12-bit resolution with no missing codes, an internal buried-zener reference providing low drift and low noise, single +5 V analog supply operation with a -5 V or larger negative reference option for bipolar input ranges, and a 3-wire (SPI/QSPI/MICROWIRE-compatible) serial interface that reduces pin count versus parallel-output ADCs of equivalent speed. Architecture-wise, the MAX176ACPA uses a charge-redistribution switched-capacitor DAC inside the SAR loop. Track-and-hold is implemented as an open-loop input stage that settles to 12-bit accuracy in 0.4 us minimum. The buried-zener reference is factory-trimmed, eliminating the need for external reference components and shrinking the BOM versus ADCs that require external 2.5 V or 5 V references. Typical applications span data acquisition systems, process control front-ends, portable instrumentation, weigh scales, and digital signal processing front-ends where a compact, low-pin-count ADC with internal reference is required. The 8-pin PDIP form factor also supports through-hole prototyping on breadboards and legacy industrial backplanes. Designers should pay attention to input-signal conditioning: the MAX176ACPA accepts a unipolar 0 to +5 V input (with bipolar operation possible using the VEE pin and external driver). Source impedance should be kept below a few hundred ohms to avoid conversion-time errors. Decouple AVDD with a 10 uF tantalum in parallel with a 0.1 uF ceramic placed close to the pin. This page synthesizes current distributor pricing, factory-package drop-in alternatives including the MAX176BCPA and MAX176AMJA, application guidance, and design notes not found in the manufacturer datasheet alone.

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MAX176AEPA

MAX176AEPA - 12-Bit 250ksps SAR ADC with Reference | PDIP-8

The Maxim Integrated MAX176AEPA is a 12-bit, 250 ksps successive-approximation analog-to-digital converter (ADC) with an internal track/hold amplifier and buried-zener voltage reference, housed in an 8-pin PDIP package. It operates from a single +5 V supply, draws 4 mA typical operating current, and provides a serial SPI/QSPI/MICROWIRE-compatible data interface that simplifies opto-isolation and board-to-board wiring. The internal 12-bit reference and small external parts count make it a true single-chip data-acquisition solution. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts a continuous analog voltage at its input into a discrete digital code at its output. Within the broader taxonomy, an ADC belongs to data conversion ICs, which sit under mixed-signal ICs and ultimately the semiconductor family. Successive-approximation-register (SAR) ADCs such as the MAX176 use an iterative binary-search algorithm combined with an internal DAC, achieving an excellent trade-off between speed, resolution, and power consumption. The MAX176 specifically integrates a track/hold front-end and a precision reference on-chip, removing the need for an external reference or sample-and-hold circuit. Key specifications include 12-bit resolution (no missing codes), 250 ksps throughput, ±0.5 LSB integral nonlinearityity (INL, max), ±1 LSB differential nonlinearityity (DNL, max), 1.5 µs track/hold acquisition time, 3.5 µs conversion time, and a true bipolar ±5 V or 0–5 V analog input range. The on-chip buried-zener reference provides a low 5 ppm/°C typical temperature drift, eliminating external reference drift in instrumentation designs. The serial interface supports an external clock up to the full conversion rate, enabling easy interface to SPI, QSPI, and MICROWIRE-compatible microcontrollers without glue logic. Typical applications include high-speed data logging, pen-digitizers and digitizing oscilloscopes, industrial process control, sonar/audio signal processing, and battery-powered or remote-sensor instrumentation. Its 4 mA operating current and small 8-pin DIP footprint suit designs where board area and supply drain both matter. When designing with this part, place 0.1 µF ceramic bypass capacitors as close as possible to the supply pin and use a clean analog ground to avoid digital switching noise coupling into the analog input. For systems that already use a higher-resolution SAR ADC, the MAX176 remains a reliable workhorse for legacy and industrial designs. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, application guidance and design notes not found in the bare datasheet, including comparisons against the MAX176BCPA+ and MAX176BEPA+ variants.

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MAX176AEPA+

MAX176AEPA+ - 12-Bit 250ksps Serial ADC with T/H | Maxim Integrated

The Maxim Integrated MAX176AEPA+ is a 12-bit, 250 ksps serial-output analog-to-digital converter (ADC) with an integrated track-and-hold amplifier and buried-zener voltage reference, housed in an 8-pin PDIP plastic package. It combines a fast 0.4 µs track-and-hold, a 3.5 µs successive-approximation ADC core, and an on-chip reference in a single through-hole IC, simplifying mixed-signal front-end design. Operating from a single +5 V supply (with a -12 V or -15 V supply for VSS in some applications), it dissipates typically under 50 mW, suiting it for industrial process control and instrumentation. An ADC is a data converter that translates a continuous analog input voltage into a discrete digital code. Successive-approximation register (SAR) ADCs such as the MAX176AEPA+ perform the conversion in N clock cycles for an N-bit result, balancing conversion speed against power and silicon area. Compared with flash and pipeline architectures, SAR ADCs offer deterministic latency and low noise at moderate sampling rates, making them the de-facto choice for multiplexed 12-bit industrial and instrumentation front ends where they would otherwise require a separate reference and a discrete sample-and-hold. Key specifications include 12-bit resolution with ±1 LSB (max) linearity, 250 ksps throughput, ±5 V analog input range (unipolar or bipolar with external scaling), and a 0.4 µs track-and-hold acquisition time. The integrated buried-zener reference delivers low drift and low noise, eliminating the need for an external precision reference in many designs. The serial interface reduces pin count and isolates the digital noise from the analog front end, and the device is specified over the -40 °C to +85 °C industrial temperature range. Internally, the MAX176AEPA+ uses a charge-redistribution DAC switched by a thin-film resistor ladder, a high-bandwidth input track-and-hold capable of digitizing fast signals without slew-rate-induced error, and a buried-zener reference biased from the +5 V and -15 V rails for low temperature coefficient. Its serial interface is compatible with standard SPI/QSPI/MICROWIRE microcontrollers, simplifying the digital board-side connection to a single chip-select, clock, and serial-data line. The combination of low aperture delay and a quiet on-chip reference makes the part well-suited to multiplexed data-acquisition channels sharing a single converter. Typical applications include industrial process-control data-acquisition front ends, weigh-scale and strain-gauge instrumentation, portable battery-powered measurement, panel-meter signal conditioning, and closed-loop servo control. It also serves medical instrumentation front ends and sensor-signal digitizers where a precision reference and sample-and-hold are needed in a small through-hole footprint. When designing with the MAX176AEPA+, place the 0.1 µF supply bypass capacitors as close as possible to pins 1, 7, and 8, and provide a low-impedance analog ground return to minimize digital switching noise coupling into the analog input. The +5 V supply should be low-noise, because the reference derives directly from it; for best linearity performance, the negative supply (VSS) should be a clean -12 V to -15 V rail rather than generated locally from the +5 V line. This page consolidates distributor pricing, drop-in same-family alternatives, and PCB design notes that are not collected in a single location on the manufacturer's datasheet, giving engineers a single decision-grade reference for selecting or replacing the MAX176AEPA+.

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MAX176BEWE

MAX176BEWE - 12-Bit 250ksps Serial ADC with T/H | Maxim

The Maxim MAX176BEWE is a 12-bit, 250 ksps successive-approximation analog-to-digital converter (ADC) with an integrated track-and-hold amplifier and on-chip buried-zener voltage reference, housed in a 16-pin wide-body SOIC (SO-16W / WSOIC-16) package. According to the manufacturer product page, the device operates from a single +5 V analog supply and a separate +5 V digital supply, draws approximately 50 mW of operating power, and supports a bipolar analog input range of ±5 V when running in bipolar mode. The MAX176 family is recommended for new designs and provides a serial interface compatible with SPI/QSPI/MICROWIRE, which makes it easy to connect to microcontrollers, DSPs, or shift registers without bus contention. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts a continuous analog voltage at its input into a discrete digital code. SAR (Successive Approximation Register) ADCs use a binary-search algorithm to settle one bit per clock cycle, balancing speed against power and area. The MAX176 belongs to the higher-level hierarchy: data converter -> ADC -> SAR ADC -> precision 12-bit data-acquisition IC, and is commonly classified under signal-chain data-acquisition components. Key features include 12-bit resolution with no missing codes, 0.5 LSB integral non-linearity (INL) and ±1 LSB gain error, a 0.4 µs maximum track-and-hold acquisition time, 3.5 µs conversion time, and an internal buried-zener reference that typically holds ±25 ppm/°C drift. The on-chip reference and T/H eliminate most external analog components, so the only external parts needed are supply bypass capacitors and the serial-interface pull-up. Typical applications include data-acquisition front ends for industrial instrumentation, precision sensor signal conditioning (load cells, strain gauges, thermocouple cold-junction compensation), portable or benchtop digital multimeters, audio and vibration analysis, and embedded process-control loops. The 250 ksps throughput is sufficient for these mid-speed measurement channels and far exceeds the needs of most temperature and weigh-scale instruments. When designing with this part, ensure that the analog and digital grounds are tied at a single point (star-ground) and that the 10 µF tantalum plus 0.1 µF ceramic decoupling pair is placed within 10 mm of the supply pins. The shutdown pin reduces supply current to microamp levels between conversions for low-power battery designs, and an external clock or micro-controller serial clock can drive the SCLK input up to 5 MHz. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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MAX177CNG+

MAX177CNG+ - 10-Bit 100kSPS SAR ADC, 24-PDIP | Maxim Integrated

The Maxim Integrated MAX177CNG+ is a 10-bit resolution, 100 ksps (kilosamples per second) successive-approximation-register (SAR) analog-to-digital converter with an integrated sample-and-hold (track-and-hold) amplifier, packaged in a 24-pin PDIP (Plastic DIP) through-hole package. The part operates from a single +5V supply and provides a parallel microprocessor-compatible output interface, making it a classic choice for legacy data acquisition boards, industrial process control front ends, and instrumentation digitizers. A SAR ADC (Successive-Approximation-Register Analog-to-Digital Converter) is a type of Nyquist-rate data converter that uses a binary-search algorithm against an internal precision DAC to determine each digital output code. Within the broader converter hierarchy, the MAX177 sits in the medium-speed precision SAR family, between low-power delta-sigma audio converters and high-speed pipeline/video ADCs. SAR ADCs are favored when deterministic latency, single-shot conversion capability, and low-latency digital readout are required. Key features include 10-bit resolution, a single-ended analog input channel, 100 ksps maximum sampling rate, an internal sample-and-hold, parallel digital output, and a built-in +2.5V reference option that can also be overridden with an external reference. The MAX177CNG+ consumes modest supply current and supports a commercial temperature grade, suiting bench instrumentation, factory automation, and embedded datalogger designs where a through-hole part simplifies prototyping. The MAX177CNG+ uses Maxim's classic CMOS SAR core with charge-redistribution DAC switching, providing excellent DC linearity and low noise at the 100 ksps throughput. The 24-pin PDIP form factor makes the part breadboard-friendly and socket-compatible for educational, replacement, and legacy maintenance applications where surface-mount conversion is not required. Typical applications include single-channel 4-20 mA loop digitizers, transducer signal conditioning outputs, bench-top multimeter front ends, industrial controller analog inputs, and digital oscilloscope scaling/calibration digitizers. The single +5V supply simplifies integration alongside 8051, PIC, and AVR microcontrollers without auxiliary analog rails. When designing with the MAX177CNG+, ensure the analog input driving bandwidth is appropriate for the track-and-hold acquisition time and provide adequate bypassing on VDD and VREF. Add a small RC anti-alias filter ahead of the analog input pin to attenuate out-of-band noise before sampling. This page synthesizes distributor pricing across DigiKey/Mouser/Octopart, drop-in package-compatible alternatives, and practical SAR ADC design notes not consolidated in any single source.

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MAX177CWG+

MAX177CWG+ - 10-Bit 100ksps SAR ADC with Track-Hold | Maxim Integrated

The Analog Devices / Maxim Integrated MAX177CWG+ is a 10-bit, 100 ksps successive-approximation analog-to-digital converter (SAR ADC) with an integrated track-and-hold amplifier and buried-zener voltage reference, housed in a 24-pin wide-body SOIC package. The device operates from a single +5 V analog supply and a digital supply programmable from +5 V to +15 V, providing flexible digital-interface level shifting for 3 V, 5 V, or 15 V microcontrollers and ASICs. Conversion time is 8.33 microseconds including the track-and-hold acquisition window, achieving a 100 ksample/s throughput from a CMOS analog front-end. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses an internal binary-weighted capacitor DAC and a comparator to step through bit decisions one clock at a time. It belongs to the medium-speed, medium-resolution converter family sitting between flash ADCs (fast but low resolution) and delta-sigma converters (high resolution but slower). SAR ADCs are widely chosen for multiplexed data-acquisition systems, industrial process control, and portable instrumentation because they offer deterministic latency, no pipeline delay, and excellent DC accuracy for both single-shot and sampled measurements. Key features of the MAX177CWG+ include 10-bit resolution with no missing codes, an internal buried-zener reference offering low temperature drift and low broadband noise, an on-chip track-and-hold capable of settling to 0.5 LSB in 8.33 microseconds, and low CMOS power consumption typically in the milliamp range. The parallel data output bus and standard microprocessor interface simplify hookup to legacy microcontrollers and DSPs without requiring serial-port configuration. Typical applications for the MAX177CWG+ span industrial process control loops, multichannel data-acquisition front-ends, weigh scales, panel meters, portable instrumentation, and digital sensor readouts where bipolar-input signal conditioning and single-supply 5 V operation simplify the analog signal chain. When designing with this part, ensure the analog input signal stays within the input common-mode range of the track-and-hold amplifier and decouple AVDD and DVDD with separate 0.1 microfarat ceramic bypass capacitors placed close to the supply pins. This page synthesizes distributor inventory, drop-in same-family alternatives, and practical layout guidance that goes beyond the manufacturer datasheet headline specifications.

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MAX178AENG+

MAX178AENG+ - 12-Bit 17ksps Calibrated SAR ADC | Maxim Integrated

The Analog Devices (formerly Maxim Integrated) MAX178AENG+ is a calibrated 12-bit analog-to-digital converter (ADC) with a successive-approximation register (SAR) architecture, integrated track-and-hold amplifier, on-chip precision voltage reference, and an internal conversion clock, delivered in a 24-pin plastic DIP (N-24) through-hole package. Key headline specifications include 12-bit resolution, 17 ksps sampling rate, 5.25 V maximum analog input range, and an internal laser-trimmed reference with on-the-fly auto-zero calibration that keeps zero errors below 100 uV. An SAR ADC (successive-approximation-register analog-to-digital converter) is a class of data converter that resolves a binary output one bit per internal clock cycle by comparing the sampled input against a precision DAC. SAR ADCs sit in the broader taxonomy of data-acquisition ICs: ADC -> data converter -> data acquisition -> signal chain -> analog/mixed-signal IC -> semiconductor. The MAX178 belongs to the precision, low-to-medium speed SAR family, valued for deterministic latency and intrinsic alias-free sampling without the latency of delta-sigma converters. Key features include a complete on-chip signal chain (T/H, reference, clock) so that no external reference, sample capacitor, or ADC timing components are required; an auto-zero cycle performed on every conversion that holds zero error below 100 uV across the full industrial temperature range; pin-selectable analog input ranges of 0 V to +5 V unipolar or ±5 V bipolar; and serial digital output for direct connection to a microcontroller or DSP. Internal calibration maintains true 12-bit performance from -40 C to +85 C with no external adjustments. The MAX178AENG+ uses a charge-redistribution DAC array trimmed at the factory against an on-chip buried-zener bandgap reference. The integrated track-and-hold has an aperture compatible with the 17 ksps conversion rate, and the bipolar/unipolar input range is selected by a single pin. Compared with bare 12-bit ADC cores, the integrated reference and reference design eliminates the most common sources of gain and offset drift in precision instrumentation. Typical applications include industrial process control data acquisition, multi-channel 4-20 mA sensor digitizers, portable or panel-mount instrumentation, and digital panel meters. The 5 V unipolar / ±5 V bipolar input ranges match the natural signal swing of many transducers, including strain gauges, thermocouple front-ends after amplification, and 4-20 mA current-loop receivers. When designing with the MAX178AENG+, place a 10 uF tantalum bypass capacitor plus a 0.1 uF ceramic directly at the VDD pin to keep logic-noise currents out of the analog reference. Although the ADC is factory-calibrated, avoid running external digital traces directly under the package to minimize coupled noise into the on-chip reference. This page synthesizes distributor pricing, package-aware drop-in alternatives (all 24-pin PDIP), and practical design notes that complement the manufacturer datasheet.

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MAX178AEWG

MAX178AEWG - 12-Bit Calibrated ADC, 17ksps, 24-SOIC | Maxim

The Maxim Integrated (now part of Analog Devices) MAX178AEWG is a complete, calibrated 12-bit successive-approximation analog-to-digital converter (ADC) integrating a precision bandgap voltage reference, a track-and-hold (T/H) front-end, and an internal conversion clock. Housed in a 24-pin SOIC wide-body package, the device delivers up to 17 ksps conversion rate from a single +5 V analog supply while accommodating bipolar analog inputs via dedicated bipolar-offset pins. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous analog voltages and encodes them into discrete digital codes. The MAX178 family sits within the SAR (Successive Approximation Register) converter category, which uses an internal capacitive DAC and comparator to converge on the input voltage in N clock cycles. SAR ADCs are favored for their deterministic latency, low power consumption, and excellent DC accuracy - characteristics that place them above integrating converters and flash converters for general-purpose precision measurement. Key features include ±0.5 LSB integral nonlinearity (INL) and ±1 LSB differential nonlinearity (DNL) over the full operating range, an internal 4.096 V reference (Mask A) or external reference option, and an auto-zero cycle on every conversion that reduces zero error to below 100 µV. The device offers three digital-interface modes - 8-bit bus, serial, and stand-alone - selectable via mode pins, and accepts unipolar (0–360 V) or bipolar (±VREF) analog input ranges. The MAX178AEWG carries the commercial 0 °C to +70 °C temperature grade. Architecturally, the MAX178AEWG employs laser-trimmed thin-film resistors and a chopper-stabilized comparator, combined with on-chip calibration logic that corrects gain and linearity errors at power-up. This self-calibration eliminates the need for external trimpots in production, reducing BOM cost and improving long-term drift performance. Throughput is governed by an internal RC oscillator driving the SAR state machine. Typical applications include process-control data acquisition front-ends, weigh-scale signal conditioning, panel-meter and digital-voltmeter designs, temperature-measurement systems (with RTD/thermocouple front-ends), and precision transducer interfaces. The bipolar-input capability simplifies signal paths from bridge sensors and shunt current monitors. When designing with the MAX178AEWG, add 10 µF and 0.1 µF bypass capacitors adjacent to the analog supply pin to keep reference noise below 50 µVrms; a single-point analog ground and a separate digital-ground return are strongly recommended. The internal reference's noise bandwidth scales inversely with the output capacitance, so a larger CREF yields lower noise at the cost of slower power-on settling.

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MAX178BCNG

MAX178BCNG - 12-Bit Calibrated ADC with T/H | Maxim Integrated

The Analog Devices (formerly Maxim Integrated) MAX178BCNG is a complete, calibrated 12-bit analog-to-digital converter (ADC) integrating a precision voltage reference, track-and-hold (T/H) amplifier, and SAR conversion logic in a single 24-pin PDIP through-hole package. It delivers a 17 µs conversion time using the successive-approximation architecture, supports ±5V or +5V/-15V analog input ranges, and consumes only 4.5 mA from a single +5V supply. Internal calibration circuitry and a per-cycle auto-zero routine maintain true 12-bit performance over the full commercial 0°C to +70°C operating temperature range, eliminating the need for external trim adjustments. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a precision data-acquisition IC that uses a binary-search algorithm to convert an analog input voltage into a parallel or serial digital code in N clock cycles for N bits of resolution. SAR ADCs sit within the broader hierarchy of mixed-signal ICs -> data converters -> ADCs, and are valued for their low latency, deterministic throughput, and excellent DC accuracy — making them the dominant choice for multiplexed data-acquisition systems, instrumentation, and process-control front ends. Key features include an internal buried-zener reference (10 ppm/°C typical drift), a ±0.5 LSB integral nonlinearity (INL) maximum specification, zero-error below 100 µV thanks to the per-conversion auto-zero, and a track-and-hold amplifier capable of digitizing full-scale signals up to the Nyquist bandwidth. The MAX178BCNG also exposes a hardware-compatible parallel interface, easing retrofit into designs based on legacy ADC0800-class parts. Architecturally, the MAX178 combines a charge-redistribution CDAC digital section, a bipolar input T/H, a low-noise reference buffer, and on-chip calibration logic that compensates for capacitor-mismatch errors at power-up. The result is no-missing-code 12-bit performance without periodic user recalibration — a significant advantage over older ADCs that required potentiometer trims. Typical applications include industrial process control (4–20 mA loop digitization at the receiver side), multichannel data-acquisition systems in legacy PLCs, weigh-scale and load-cell signal conditioning, benchtop multimeters and panel meters, and precision sensor front-ends for temperature, strain-gauge, and pressure transducers. The wide ±15V input tolerance also suits instrumentation-grade signal chains. A critical design consideration is the input protection network: source impedance should remain below 5 kΩ to avoid IR-drop errors through the ESD diodes, and a 100 nF ceramic bypass on VDD placed within 5 mm of the supply pin is mandatory. The reference output is not designed to drive external loads — buffer it through an external op-amp if multiple ADCs share one reference. This page synthesizes distributor stock, parametric drop-in alternatives within the same Maxim ADC family, and application notes not consolidated in the manufacturer datasheet.

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MAX178BCWG

MAX178BCWG - 12-Bit 17ksp/s Precision ADC with T/H and Reference | Maxim Integrated

The Maxim Integrated MAX178BCWG is a calibrated 12-bit analog-to-digital converter (ADC) with 17 ksps throughput, integrated track-and-hold, on-chip precision voltage reference, and conversion clock, packaged in a 24-pin SOIC (W) wide-body package. It accepts unipolar 0V to 5V analog inputs from a single +5V supply and provides a parallel output interface suitable for direct connection to standard microprocessors. The B temperature grade is specified for the commercial 0C to +70C operating range. A SAR (Successive Approximation Register) ADC is a type of precision data converter that uses a binary-search algorithm to digitize an analog input, producing a single sample per conversion cycle. SAR ADCs are valued for deterministic latency, low power consumption, and the absence of pipeline delay, making them well-suited for multiplexed data-acquisition front ends, industrial process control, and instrumentation. The MAX178BCWG belongs to the integrated ADC IC category within the broader data-converter hierarchy of semiconductors, sitting between standalone ADCs and complete system-on-chip mixed-signal ICs. Key differentiating features of the MAX178BCWG include built-in self-calibration that maintains true 12-bit performance across the full commercial temperature range without external trims, an auto-zero cycle on every conversion that holds zero error to below 100 uV, and a tight integral nonlinearity of typically ±0.5 LSB. The internal 4.096 V reference also frees the user from designing a separate reference circuit, reducing external component count. Architecturally, the part combines a capacitive-charge-distribution DAC, a comparator, a SAR register, and a control logic block. The internal reference uses buried-zener trimming for low drift, and the track-and-hold has 1.5 us acquisition time, supporting the 17 ksps maximum sample rate when clocked from an internal oscillator. Typical applications include precision data-acquisition systems, industrial process control loops, portable instrumentation front ends, weigh-scale and strain-gauge signal conditioning, and embedded sensor readouts. Designers favor the MAX178BCWG where a complete, calibrated ADC subsystem with reference is required in a single SO-24 package. When designing with this part, observe the analog input settling requirements for the printed bands - the input must settle within the first acquisition time - and recommend a 2.2 uF bypass capacitor near VDD to keep reference noise low. Designers should also evaluate using the +5V supply directly; the device does not require a separate analog and digital supply. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for selection, replacement, and BOM optimization.

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Subcategorias

Produtos (39.000+)

MAX172BCNG - 12-Bit 100kSPS CMOS ADC with On-Chip Reference | DIP-24

MAX172BEWG - 12-Bit 100kSPS CMOS ADC | Maxim Integrated

MAX172BMRG/883B - 12-Bit 100ksps SAR ADC, 883B Military | Maxim

MAX173CNG+ - 10-Bit 200ksps SAR ADC | Analog Devices

MAX173CWG - 10-Bit SAR ADC with Reference | 24-SOIC | Maxim

MAX174ACWI - 12-Bit 125ksps SAR ADC, 28-SOIC | Maxim Integrated

MAX174AEPI - 12-Bit 8µs SAR ADC, 28-PDIP | Maxim Integrated

MAX174AEPI+ - 12-Bit SAR ADC, 28-PDIP, BiCMOS | Maxim Integrated

MAX174BC/D-C10306 - 12-Bit 8μs SAR ADC Die | Maxim Integrated

MAX174BCPI - 12-Bit 8µs SAR ADC with Reference | Maxim Integrated | PDIP-28

MAX174BCWI+ - 12-Bit 125 kSPS Complete ADC | Maxim Integrated

MAX174BEPI - 12-Bit Industry-Standard ADC, 28-PDIP | Maxim Integrated

MAX174CCWI+ - 12-Bit 125ksps SAR ADC with 10V Input Range | Maxim Integrated

MAX174CEPI - 12-Bit 125ksps ADC | Maxim Integrated / ADI

MAX176ACPA - 12-Bit 250ksps Serial ADC, 8-PDIP | Maxim

MAX176AEPA - 12-Bit 250ksps SAR ADC with Reference | PDIP-8

MAX176AEPA+ - 12-Bit 250ksps Serial ADC with T/H | Maxim Integrated

MAX176BEWE - 12-Bit 250ksps Serial ADC with T/H | Maxim

MAX177CNG+ - 10-Bit 100kSPS SAR ADC, 24-PDIP | Maxim Integrated

MAX177CWG+ - 10-Bit 100ksps SAR ADC with Track-Hold | Maxim Integrated

MAX178AENG+ - 12-Bit 17ksps Calibrated SAR ADC | Maxim Integrated

MAX178AEWG - 12-Bit Calibrated ADC, 17ksps, 24-SOIC | Maxim

MAX178BCNG - 12-Bit Calibrated ADC with T/H | Maxim Integrated

MAX178BCWG - 12-Bit 17ksp/s Precision ADC with T/H and Reference | Maxim Integrated