ADC/DAC
Produk (3.100+)
DAC714HB-1 - 16-Bit Serial DAC | Texas Instruments
The Texas Instruments DAC714HB-1 is a 16-bit digital-to-analog converter with a serial data interface, a precision internal reference, and an asynchronous clear function, supplied in a 16-CDIP package. The verified product data identifies the device as a 16-bit DAC; its voltage output, ±1 LSB integral linearity, monotonic operation over temperature, and low noise including 120 nV/√Hz are stated in the manufacturer-oriented datasheet result. A DAC is a data conversion IC that translates a digital code into an analog voltage or current. In the signal-chain hierarchy, a DAC sits between digital control or processing circuitry and analog output circuitry. The DAC714 combines a monolithic converter, +10 V temperature-compensated reference, current-to-voltage amplifier, high-speed synchronous serial interface, and serial output for cascading multiple converters. The serial interface reduces the number of parallel data lines needed to communicate with a controller, while the internal reference helps simplify analog-output designs. Its 16-bit resolution supports fine-grained control and measurement applications. The asynchronous clear function immediately sets the output to midscale, providing a defined state during reset or system initialization. The low-noise specification is important when the converter output feeds sensitive analog signal chains. Typical uses include industrial control, instrumentation, test and measurement, programmable analog sources, data-acquisition systems, and laboratory equipment. The serial output feature can support multi-channel architectures when several converters must operate from one controller. The output should be interpreted only after checking the manufacturer datasheet for voltage ranges, reference accuracy, settling time, digital timing, and package details. Designers should review the complete DAC714 datasheet for supply requirements, pin functions, serial timing, reset behavior, output loading, and recommended decoupling. Pay particular attention to the distinction between the DAC714HB-1 ordering suffix and other DAC714 variants before approving a replacement or layout change. The verified distributor result confirms a 16-CDIP package and identifies the part as a 16-bit digital-to-analog converter, but several detailed electrical values require manufacturer verification. This page combines verified distributor and manufacturer resources with explicit data gaps, practical integration guidance, and a structured comparison framework. It is designed to support engineering selection rather than imply that unspecified parameters, pricing, lifecycle status, or drop-in alternatives have been confirmed.
DAC715UB - 16-Bit Parallel DAC, +10V Ref, 28-SOIC | Texas Instruments
The Texas Instruments DAC715UB is a complete monolithic 16-bit digital-to-analog converter with a 16-bit parallel bus interface, an on-chip +10 V temperature-compensated voltage reference, and a current-to-voltage output amplifier. Housed in a 28-pin SOIC (wide-body) package, it provides a unipolar 0 V to +10 V voltage output with 10 microsecond settling time to within 1 LSB. What is a 16-bit DAC with voltage output? A DAC (Digital-to-Analog Converter) converts a digital codeword into a precisely controlled analog voltage or current. A 16-bit DAC produces 65536 discrete output steps, giving an LSB size of about 153 microvolts on a 10 V full scale. Voltage-output DACs like the DAC715UB include an internal output amplifier so no external op-amp or shunt resistor is needed; in the broader hierarchy they sit within precision data converters (ADC/DAC), which belong to the signal-chain family of mixed-signal ICs. Key features include a high-speed 16-bit parallel double-buffered interface that allows simultaneous update of multiple DACs, an asynchronous CLR function that forces the output to mid-scale, and convenient external gain and offset adjustments for auto-calibration. Power dissipation is 600 mW maximum. The device is offered in 14-, 15-, and 16-bit linearity grades with the L grade specified for 16-bit monotonic operation over the -40C to +85C industrial temperature range. Architecturally, the DAC715UB uses an R-2R ladder network driven by the 16-bit input register. The double-buffered latch arrangement lets the input register be loaded first and then a single LDAC strobe simultaneously updates the analog output, enabling synchronized multi-channel operation in automated test equipment and process control systems. Typical applications include industrial process control, automated test equipment (ATE), precision instrumentation, motor control reference generation, and programmable voltage/current sources. The on-chip +10 V reference simplifies bill-of-materials by removing the need for an external reference IC. Design consideration: route the AGND and DGND separately and join them only at one point near the DAC ground pin. Place the 0.1 microfarand bypass capacitor as close to the supply pin as possible to preserve 16-bit linearity at high update rates. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
DAC7545KU-1 - 12-Bit Parallel DAC | Texas Instruments | Industrial
The Texas Instruments DAC7545KU-1 is a 12-bit CMOS multiplying digital-to-analog converter that converts parallel digital words into a current output using an R-2R architecture, supplied in a 20-pin SOIC package. The verified listings identify the device as a 12-bit DAC with a 20-pin SOIC package and parallel word input, while detailed electrical limits are not provided in the supplied data. A DAC is a data-converter IC that transforms digital numeric codes into proportional analog voltage or current. This multiplying DAC supports the DAC7545KU family classification, but its exact reference current, output compliance range, supply requirements, linearity, temperature range, and settling time must be confirmed in the manufacturer datasheet before a new design is released. The key verified features are the 12-bit conversion resolution, parallel digital interface, current-output R-2R conversion architecture, and 20-pin SOIC package. Twelve bits provide 4,096 possible digital codes, making the converter suitable for instrumentation, industrial control, waveform generation, and embedded analog-output systems where moderate precision and compact logic integration are more important than very high resolution. The KU suffix and the -1 ordering suffix must be treated as exact orderable identifiers. The verified search results also show related catalog variants such as DAC7545KU, DAC7545KUG4, and DAC7545KU-BI, but the supplied evidence does not establish that every catalog suffix is pin-to-pin, electrically identical, and drop-in replaceable. Likewise, no verified same-footprint cross-brand replacement was returned. Typical DAC7545KU-1 uses include programmable analog setpoints in industrial controllers, excitation or reference signals in instrumentation, digital waveform generation, laboratory interfaces, and embedded systems where a parallel bus simplifies data-path implementation. Designers should pair the current-output DAC with a suitable operational amplifier when a voltage output is required. The principal design consideration is verification of electrical details from the authoritative manufacturer datasheet. Before layout approval, confirm the pin map, logic levels, supply rails, reference current, output compliance, required compensation components, and timing relationships for the exact -1 orderable part rather than relying on generic DAC family assumptions. This page combines verified catalog data, explicit uncertainty markers, source traceability, and application-focused engineering guidance. It also distinguishes the exact DAC7545KU-1 orderable from related family listings, helping procurement and design teams avoid unsupported drop-in claims while preparing a controlled technical evaluation.
DAC7611U/2K5 - 12-Bit Serial DAC, 5V, SOIC-8 | Texas Instruments
The Texas Instruments DAC7611U/2K5 is a 12-bit serial-input digital-to-analog converter (DAC) with guaranteed 12-bit monotonicity across the industrial temperature range (-40°C to +85°C), supplied in an 8-pin SOIC package and shipped on a 2,500-piece tape-and-reel. A digital-to-analog converter (DAC) is a data-conversion integrated circuit that translates a binary digital word into a proportional analog voltage or current. The DAC sits within the broader data-converter IC family, which also includes analog-to-digital converters (ADCs); both are essential building blocks of mixed-signal systems that bridge the real-world analog domain and digital processors. The DAC7611 belongs to the low-power, single-channel, voltage-output, serial-interface sub-category used in compact, microprocessor-controlled designs. Key specifications include 12-bit resolution, 1 mV per LSB step size with a 4.095 V full-scale range, and 7 µs settling time to within 1 LSB for a full-scale step. The device integrates an input shift register, latch, 2.435 V internal reference, R-2R DAC core, and high-speed rail-to-rail output amplifier on a single die. A 3-wire serial interface operates to a 20 MHz clock. Asynchronous reset clears the output to zero scale without requiring a serial write. The architecture uses an R-2R ladder network driven by a precision bandgap reference and a 5 V single supply. The internal reference is laser-trimmed for low drift, and the rail-to-rail output stage swings within millivolts of either supply rail, eliminating the need for a negative supply in unipolar systems. Power consumption is 2.5 mW typical (0.5 mA at 5 V), suiting battery-powered instrumentation. Typical applications include industrial process-control analog output modules, programmable logic controller (PLC) setpoint generators, digitally controlled calibration sources, portable test equipment, and closed-loop servo setpoint references. The 4.095 V full-scale range with 1 mV LSB aligns naturally with 0-5 V analog I/O standards used in factory-automation backplanes. When designing with this device, place the 0.1 µF power-supply bypass capacitor as close as possible to the AVDD pin and observe standard SPI-mode timing for SDI, CLK, and /CS. The asynchronous CLR pin overrides any serial write and pulls the output to zero, which is useful for failsafe initialization in safety-critical loops. This page synthesizes distributor pricing, drop-in SOIC-8 alternatives, and PCB-layout design notes that are not consolidated in the manufacturer datasheet.
DAC80508ZYZFR - 16-Bit 8-Ch SPI DAC | Texas Instruments
The Texas Instruments DAC80508ZYZFR is a true 16-bit, 8-channel, buffered voltage-output digital-to-analog converter (DAC) with an SPI interface, housed in a compact 16-ball DSBGA (WCSP) package measuring only 2.0 mm x 2.0 mm. It operates from a single 2.7-V to 5.5-V supply over -40C to +125C. A digital-to-analog converter (DAC) is a data-converter IC that transforms digital binary codes into analog output voltages, bridging digital processors and the analog world. Within the data-acquisition hierarchy, DACs sit alongside ADCs as core mixed-signal building blocks, and the DAC80508 belongs to the pin-compatible DACx0508 family of 16-, 14-, and 12-bit octal DACs used across industrial and instrumentation systems. Key features include a precision internal 2.5-V reference with 5-ppm/C drift, eliminating external references in most designs, and user-selectable gain configurations delivering full-scale outputs of 1.25 V, 2.5 V, and 5 V. The SPI interface supports data rates up to 50 MHz with daisy-chaining, and an LDAC function enables simultaneous updates of all eight outputs. A power-on reset guarantees zero-scale or mid-scale outputs at startup. Technically, the DAC80508 uses a resistor-string architecture with a per-channel output buffer amplifier, providing excellent linearity, low glitch energy, and the ability to drive capacitive loads directly. Each channel is independently powered down for energy savings in battery-operated instruments. Typical applications include precision test and measurement equipment, industrial process control, motor control systems, and portable instrumentation. Low power consumption and the tiny WCSP footprint suit battery-powered and space-constrained designs. For best performance, decouple VDD with 0.1-uF and 10-uF capacitors close to the pin, bypass the reference with 1 uF, and use a clean analog ground plane with separated digital and analog grounds to minimize noise coupling.
DAC80508ZYZFT - 16-Bit Octal SPI DAC | Texas Instruments
The Texas Instruments DAC80508ZYZFT is a true 16-bit, eight-channel, buffered voltage-output digital-to-analog converter (DAC) with an SPI interface, housed in a compact 16-ball DSBGA (YZF) wafer-level chip-scale package measuring approximately 2.0 mm x 2.0 mm. It integrates a precision 2.5-V, 5-ppm/C internal reference, eliminating the need for an external precision reference in most designs. A digital-to-analog converter is a data-conversion IC that translates digital binary codes into analog voltages, bridging the digital processor domain and the analog signal domain in mixed-signal systems. The DAC80508 belongs to the pin-compatible DACx0508 family, which spans 16-, 14-, and 12-bit resolution variants within the broader data-acquisition semiconductor hierarchy. Key features include 16-bit resolution with +/-1 LSB INL, a 5-us output settling time, and an internal reference with only 5 ppm/C temperature drift. The device operates from a single 1.7-V to 5.5-V supply, supports SPI clock rates up to 50 MHz, and offers a user-selectable gain configuration delivering full-scale outputs of 1.25 V, 2.5 V, or 5 V with an external reference. A power-on reset clears registers to zero-scale, and per-channel power-down mode reduces current to 0.5 uA per channel for battery-powered designs. Architecturally, the DAC80508 uses a resistor-string (R-2R derived string) core with an output buffer amplifier per channel, ensuring rail-to-rail output swing and low output impedance. The DSBGA-16 package minimizes board area, making it suitable for space-constrained portable equipment and dense multi-channel analog boards. Typical applications include precision instrumentation, industrial process control, motor control loops, and portable medical devices, where the combination of 16-bit accuracy, low drift, and low power is critical. When designing, decouple AVDD and DVDD with 0.1-uF and 1-uF capacitors placed close to the pins, bypass the VREF output with 1 uF, and keep SPI traces short and away from high-speed digital lines to minimize crosstalk.
DAC80H-CBI-I - 12-Bit Digital-to-Analog Converter | Burr Brown
The Burr Brown DAC80H-CBI-I is a 12-bit digital-to-analog converter (DAC) designed for converting digital code streams into corresponding analog voltage or current signals. The verified distributor record identifies it as a digital-to-analog converter, while detailed electrical characteristics, supply requirements, interface format, output architecture, and package dimensions require confirmation from the manufacturer datasheet. The available source data does not provide enough verified information to safely populate those parameters. Its DAC80H naming places it in the family of precision and high-speed converter applications, but the exact device family architecture should be treated as unverified until the original datasheet is obtained. Engineers should use the DAC80H-CBI-I as a converter-level component rather than assume compatibility with a modern audio DAC without checking pinout, logic levels, settling time, and output circuitry. A digital-to-analog converter is a data-conversion integrated circuit that maps a digital input code to an analog output. DACs belong to the broader semiconductor hierarchy of interface ICs, converters, and signal-chain components. They are used wherever a digital system must produce a continuously variable analog quantity, including audio reconstruction, waveform generation, instrumentation, communications, industrial control, and test equipment. The usefulness of a DAC depends on resolution, accuracy, conversion speed, output noise, reference accuracy, supply requirements, digital interface compatibility, and output buffering. The verified record specifically identifies a resolution of 12 bits. This means the converter represents each digital sample with a 12-bit code, corresponding to 4,096 possible code values when the full range is used. However, total error, integral nonlinearity, differential nonlinearity, monotonicity, and effective noise are not present in the supplied records and must not be inferred from resolution alone. The converter may be used for instrumentation or signal generation, but its suitability for audio, RF, or high-speed communications depends on the missing timing and noise specifications. A DAC80-family design should be reviewed at the circuit level. Digital input timing, write or latching signals, reference voltage, analog supply sequencing, output loading, and layout all affect usable performance. The output stage may require op-amp post-amplification, current-to-voltage conversion, or filtering, but those details are not specified in the verified data. Do not select external components or PCB routing until the exact pinout and electrical limits are confirmed from the manufacturer documentation. Typical potential uses for a 12-bit DAC include laboratory signal generation, programmable voltage references, digital control systems, embedded instrumentation, audio signal reconstruction, and industrial test equipment. The actual application should be selected only after confirming output range, settling behavior, digital interface, and reference requirements. For new designs, verify the package drawing, pin numbering, supply voltages, absolute maximum ratings, and timing specifications directly with the manufacturer or authorized distributor. A key design consideration is to treat the datasheet as the authority for electrical limits and layout. The supplied search results confirm identity, function, and 12-bit resolution, but not the complete pinout or application circuit. Verify grounding, reference routing, decoupling, analog and digital supply separation, and output filtering before layout release. This page synthesizes verified distributor identity information, availability references, and engineering guidance while clearly identifying missing technical data rather than inventing specifications.
DAC81416RHA - 16-Ch 16-Bit High-Voltage Output DAC | Texas Instruments
The Texas Instruments DAC81416RHA is a 16-channel, 16-bit, buffered, high-voltage output digital-to-analog converter (DAC) integrated into a 40-pin VQFN (6x6 mm) package. It belongs to the DACx1416 family (which also includes the 12-bit DAC61416 and 14-bit DAC71416), and it provides up to 16 high-voltage analog outputs with 12 µs typical settling time, integrated low-drift 2.5 V internal reference, and a maximum analog output swing of ±20 V. The device communicates via a 4-wire serial peripheral interface (SPI) compatible with logic levels up to 5.5 V, enabling direct connection to most host microcontrollers, FPGAs, or DSPs. A high-voltage output DAC is a precision data converter that synthesizes analog voltage signals (rather than low-level current-mode outputs) directly from a digital codeword. Compared to current-output DACs (such as multiplying-R2R or R-2R ladder types), high-voltage-output DACs integrate the output amplifier on-chip, eliminating the need for an external op-amp and signal-conditioning stage in applications such as industrial process control, optical networking bias control, and automated test equipment. Within the broader power management and signal chain hierarchy, a high-voltage DAC sits between a digital controller and an analog actuator: microcontroller -> DAC -> driver amplifier -> load. Key features of the DAC81416RHA include 16-bit monotonic operation, high linearity of ±4 LSB (max) INL, integrated 2.5 V reference with 5 ppm/°C typical drift, per-channel programmable gain and offset calibration registers, hardware LDAC pin for simultaneous output updates, and a wide AVDD supply range up to 41 V. The integrated reference eliminates the need for an external precision reference in most applications, simplifying BOM count and saving board space. The DAC81416RHA uses a precision R-2R ladder architecture combined with an output buffer capable of sourcing and sinking 5 mA per channel. Per-channel calibration registers correct for system-level zero and full-scale errors, while the wide analog output voltage range allows direct drive of high-voltage actuators, PIN diode attenuators, and proportional control loops. The device is also pin-compatible with the 14-bit DAC71416RHA and 12-bit DAC61416RHA, providing design scalability. Typical applications include optical networking (laser bias control, VOA attenuators), industrial process control (valve and pump control), automated test equipment (ATE) pin electronics, programmable power supplies, and bias-current generation for MEMS devices. The 16 independent channels also suit multi-axis motion-control boards that require synchronized analog setpoints. When designing with this DAC, ensure that the AVDD supply provides adequate headroom for the desired output swing and that adequate bulk decoupling is placed near the AVDD and AVSS pins. The LDAC pin enables simultaneous output updates across all channels, which is critical for scope- and waveform-synchronized actuation. This page synthesizes distributor pricing for the DAC81416RHA from authorized sources, drop-in pin-compatible alternatives from the same DACx1416 family, and practical PCB layout notes not found in the manufacturer datasheet alone.
DAC8229FS-REEL - Dual 8-Bit Voltage-Output DAC | ADI
The Analog Devices DAC8229FS-REEL is a dual 8-bit, voltage-output, multiplying CMOS digital-to-analog converter with two independent DAC channels and a 20-lead SOIC package. Each channel provides 8-bit resolution, accepts a reference input of ±2.5 V, and uses an internal amplifier to generate an inverted voltage output. According to the manufacturer datasheet, the device can also accept a -10 V reference and produce a corresponding +10 V output. A DAC is a digital-to-analog converter, a semiconductor category used to translate digital codes into proportional voltage or current signals. The DAC8229 belongs to the voltage-output DAC family within the broader data-converter IC and signal-processing semiconductor hierarchy. Its multiplying architecture means that the output voltage scales with the applied reference signal, making the converter useful when designers need adjustable analog output under software or control-system direction. The primary features of the DAC8229 include dual-channel operation, 8-bit resolution, and voltage outputs with inverted polarity. The reference input range is ±2.5 V, while a -10 V reference is supported for operation extending to a +10 V output. The manufacturer datasheet also states that the converter dissipates less than 109 mW in the 20-pin 0.3-inch DIP or 20-lead SO surface-mount package, helping control heat in compact multi-channel equipment. Internally, the DAC8229 uses multiplying CMOS DAC elements and output amplifiers. Each digital input code controls the ratio between the external reference and the analog output, with the internal amplifier providing the required inversion. This structure allows one reference source to establish the scaling for both converter channels, although independent reference routing may be used when the two outputs require different scaling or isolation. Typical uses include programmable analog control, industrial test equipment, instrumentation, communications equipment, and digital-to-analog interface subsystems. It is particularly appropriate where two low-resolution analog outputs are required without allocating separate converter packages. Its multiplying reference architecture can support gain adjustment, waveform generation, and closed-loop actuator or test-signal control when paired with suitable external circuitry. The principal design consideration is reference polarity and range. A +2.5 V reference produces an inverted output with respect to the digital code, while a -10 V reference permits a corresponding +10 V output. Input and reference bypassing should be placed close to the device, and output loads must remain within the limits stated by the manufacturer datasheet. Designers should also account for supply sequencing and analog settling time. This page consolidates the verified manufacturer specifications, packaging information, sourcing links, comparison fields, and application guidance into a design-focused reference for the DAC8229FS-REEL. It also distinguishes verified values from specifications that still require confirmation from the datasheet or an authorized distributor.
DAC8408BIHP - Quad 8-Bit DAC with Memory | Analog Devices
The Analog Devices DAC8408BIHP is a monolithic quad 8-bit multiplying digital-to-analog converter with memory, integrating four DAC channels in a 28-pin plastic package. Each channel provides its own reference input, feedback resistor, and onboard data latch with read/write capability. The device supports TTL/CMOS-compatible microprocessor interfacing and four-quadrant multiplication. A verified manufacturer listing confirms the quad 8-bit CMOS architecture; detailed electrical limits not present in the supplied web data remain identified as data needed. A multiplying DAC is a digital-to-analog converter whose output is proportional to both an input reference and an 8-bit digital code. In a multiply application, changing the reference voltage scales the converter output without changing the stored digital word. This makes the DAC useful where a control signal must attenuate, modulate, or calibrate an analog level. Four converters on one chip also reduce board area and simplify multi-channel system control. The DAC8408 family provides guaranteed monotonic DACs, endpoint linearity to 1/4 LSB, and DAC matching within 1%, as reported in the supplied indexed datasheet excerpt. Each channel has independent reference input and feedback circuitry, while the integrated latches support digital readback. These features make the device suitable for instrumentation, waveform generation, programmable gain or attenuation, automated test equipment, and four-channel control systems. The BIHP ordering code is associated with Analog Devices and the indexed product results describe the DAC8408 as a quad 8-bit multiplying CMOS D/A converter with memory. The supplied results do not provide a confirmed package designation, pin map, supply range, temperature range, settling time, reference voltage, output compliance, or lifecycle classification. Those values must be confirmed in the manufacturer datasheet before layout or production release. Designers should treat each DAC reference and feedback path as an analog signal path. Keep digital control traces away from reference and feedback nodes, provide a stable reference source, and follow the manufacturer’s recommended bypass and grounding arrangement. Because this is a CMOS converter, unused channels and unused digital inputs should be connected according to the datasheet rather than left floating. Verify output compliance and load-current limits before driving downstream circuitry. This page synthesizes the verified product description, source links, and engineering gaps from the supplied web results. It does not invent missing electrical values, package dimensions, pin assignments, or replacement claims. Use the Analog Devices product page and manufacturer datasheet as the controlling references for production design. For purchasing, price, stock, and lead time should be checked against current authorized distribution. The provided web results include a Rochester listing and an Octopart reference, but they do not establish XAIPART inventory or a guaranteed delivery commitment.
DAC8408FS-REEL - Quad 8-Bit DAC with Memory | Analog Devices
The Analog Devices DAC8408FS-REEL is a monolithic quad 8-bit multiplying CMOS digital-to-analog converter with memory, packaged in a 28-pin SOIC. Each of the four converter channels has an independent reference input, feedback resistor, and onboard data latch with read/write capability. The device guarantees endpoint linearity to 1/4 LSB, maintains monotonic operation, and provides DAC matching within 1%. A digital-to-analog converter is an interface integrated circuit that translates digital code words into proportional analog voltages or currents. A multiplying DAC differs from a fixed-output converter because its output depends on both the digital input code and an external reference. Within the electronics hierarchy, the DAC8408 belongs to the ADC/DAC class of data-conversion ICs used to connect digital processing systems with analog instrumentation, control, or signal-generation circuits. The four-channel architecture reduces component count when a system requires several independently controlled analog outputs. Read/write-compatible latches allow the converter to retain digital information and support microprocessor or computer interfacing. The manufacturer description also identifies TTL/CMOS compatibility, four-quadrant multiplying operation, and processor-compatible control as important characteristics for deterministic digital-to-analog system integration. Each converter includes its own reference input and feedback resistor, allowing the four channels to use common or individual reference arrangements depending on the application. Independent references can support parallel channels with different scaling requirements, while a shared reference simplifies synchronization and tracking between channels. The guaranteed endpoint linearity and monotonicity support predictable transfer behavior in control, instrumentation, and waveform-generation systems. Typical uses include industrial process-control outputs, programmable test and measurement systems, multichannel instrumentation, industrial automation equipment, and embedded data-acquisition systems. The same-package DAC8408FSZ-REEL can serve as a directly comparable alternative when its grade and sourcing conditions are appropriate, but designers should verify the complete electrical specification and ordering information before substitution. The primary design consideration is reference and feedback implementation. Because the DAC is multiplying, reference quality and stability directly influence output accuracy. Layout should keep reference and analog-output paths compact, provide a low-impedance return for each channel, and isolate digital write activity from sensitive analog nodes. The 28-pin SOIC footprint also requires attention to thermal performance when all four channels operate continuously. This page consolidates the verified manufacturer description, distributor sourcing information, practical application guidance, and a conservative same-package comparison. Because the supplied search snapshot does not expose numerical pricing, pin assignments, or a qualified drop-in cross-reference set, unavailable engineering fields are explicitly identified rather than inferred.
DAC8512FS-REEL - 12-Bit Serial DAC | Analog Devices
The Analog Devices DAC8512FS-REEL is a complete 12-bit voltage-output digital-to-analog converter designed for single +5 V operation. It integrates a DAC, input shift register, latches, voltage reference, and rail-to-rail output amplifier in an 8-pin SOIC package. The serial interface uses three wires for data input, clock, and load strobe, with an additional chip-select function supported by the DAC8512 family. A digital-to-analog converter, or DAC, converts digital code words into proportional analog voltages or currents. The DAC8512 belongs to the voltage-output DAC hierarchy, combining a digital interface and conversion core with an analog output stage. This integration gives embedded and control designers a compact way to add programmable analog output to instruments, industrial equipment, and other +5 V systems without implementing a separate converter, reference, and output amplifier. The key verified features of the DAC8512 include 12-bit resolution, a +5 V supply requirement, natural binary coding, a serial input interface, an integrated reference, and a rail-to-rail output amplifier. Its three-wire serial interface is compatible with DSP-style data transfer using SDI, CLK, and load strobe signals. The chip-select capability also supports arrangements containing multiple converters, provided the system drives the interface signals correctly. Internally, the device combines a binary-weighted R-2R DAC core with a serial shift register and latching circuitry. The shift register accepts the digital word, while the latch preserves the selected code for conversion. The integrated reference establishes the conversion scale, and the rail-to-rail output amplifier supports the output range specified for the device. The manufacturer describes the DAC8512 as being built with CBCMOS process technology. Typical uses include programmable test and measurement equipment, industrial process-control outputs, instrumentation, laboratory interfaces, and embedded systems that require a compact 12-bit analog output. In each case, the serial interface reduces the number of required data lines, while the integrated reference and output amplifier simplify the analog output implementation. Designers should account for the +5 V supply requirement, reference-decoupling recommendations, logic-level compatibility with the host controller, and the available output range defined by the Analog Devices datasheet. The DAC8512FS-REEL is supplied on tape and reel for automated production assembly, while its 8-pin SOIC package supports conventional surface-mount PCB construction. This product record combines verified manufacturer information with distributor availability references, package details, technical specifications, selection guidance, and practical design notes. It also documents why the available same-family alternatives must be checked carefully rather than treating every similarly described DAC as a true pin-to-pin replacement.
DAC8775IRWFT - 16-Bit Quad-Channel Programmable Current/Voltage DAC | TI
The Texas Instruments DAC8775IRWFT is a quad-channel, 16-bit precision digital-to-analog converter with adaptive power management, programmable current output and voltage output modes per channel, housed in a 72-pin VQFN (RWF) package. It supports output ranges of 0-5V, 0-10V, ±5V, ±10V, 0-20mA, 4-20mA, and 0-24mA on each channel, and operates over -40°C to +125°C. A digital-to-analog converter (DAC) is an integrated circuit that converts a digital codeword into a corresponding analog voltage or current. The DAC8775 belongs to the precision DAC family, which in turn sits within the broader data converter category (DAC/ADC) and finally within mixed-signal semiconductors. Industrial process-control DACs like this one typically integrate the reference, output amplifiers, fault detection, and serial interface, which simplifies PLC analog-output modules and field-instrument transmitters compared to discrete solutions. Key features include integrated adaptive power management that reduces on-chip dissipation by up to 60% in voltage-output mode, 0.1% FSR total unadjusted error (TUE) for voltage outputs, ±0.05% FSR current-output TUE, 16-bit monotonic performance, integrated 5ppm/°C reference, and per-channel thermal and wire-break detection. Each channel also includes user-accessible offset and gain calibration registers. The architecture combines a quad-string DAC core with per-channel output op-amps for voltage mode and high-compliance current drivers for current mode, all clocked by a shared SPI-compatible serial interface. Adaptive power management reduces the per-channel supply voltage to the minimum required by the programmed output range, lowering on-chip power dissipation when output ranges narrower than the maximum supply are used. Typical applications include industrial process-control analog output modules, programmable logic controllers (PLCs), distributed control systems (DCS), field transmitters (4-20mA), and servo-valve drivers. The wide output range, integrated adaptive power management, and per-channel fault diagnostics make it a single-chip replacement for multi-component analog output designs. When designing, pay attention to PCB layout of the 72-pin VQFN thermal pad: a continuous ground plane beneath the exposed pad is mandatory to meet the datasheet thermal resistance. Place bypass capacitors as close as possible to the analog and digital supply pins. This page synthesizes distributor pricing, drop-in package alternatives, application notes, and design guidance not found in the manufacturer datasheet alone, giving engineers a single reference for sourcing and designing with the DAC8775IRWFT.
DAC88BIEX - 15V Companding DAC | Analog Devices
The Analog Devices DAC88BIEX is a 15 V companding digital-to-analog converter in an 18-pin CDIP package. It is designed for special-purpose data-acquisition applications requiring a U-255-law companding DAC, with the verified listing identifying the device as an ADCs/DACs special-purpose converter. Its architecture translates a compressed digital input representation into an analog output through a dedicated companding DAC rather than a conventional linear DAC transfer function. A companding DAC is a digital-to-analog converter that applies a nonlinear input code relationship to produce an analog level with a selected transmission-law characteristic. This class of converter belongs to the broader data-converter hierarchy: digital-to-analog converter, data converter, mixed-signal IC, and semiconductor. The U-255 law is the defining functional feature identified for DAC88BIEX in the verified manufacturer-related datasheet result. The verified data confirms a 15 V device designation and CDIP-18 package, while detailed electrical limits such as resolution, settling time, output current, reference voltage, noise, linearity, and power consumption were not included in the supplied search result. Those parameters must be confirmed in the complete DAC88BIEX datasheet before layout or production release. The listing describes the component as active data-acquisition hardware, and distributor results report availability and pricing, including a listed price of $13.62000 from icDirectory and a starting price of $14.3902 from LCSC. Typical engineering uses include compact industrial data-acquisition systems, telemetry interfaces, and legacy U-255-law signal chains where the receiving equipment expects a companding DAC. The device should be treated as a specialized converter rather than substituted for a general-purpose audio DAC. External clocking, reference, output conditioning, grounding, and decoupling must follow the datasheet recommended circuit. For new designs, verify availability, temperature grade, device revision, and electrical performance against the current manufacturer documentation. The supplied distributor evidence is sufficient for identity, category, package, function, and commercial leads, but not for unreported pin names or full timing specifications. The complete pin map is therefore left as [DATA_NEEDED] in the dedicated pinout field until the official pin table is consulted. This page consolidates verified distributor identity, pricing observations, package information, sourcing status, and application guidance while clearly separating confirmed facts from parameters that still require datasheet confirmation.
DDC112UK/1KG4 - 20-Bit Dual Current-Input ADC, 28-SOIC | TI
The Texas Instruments DDC112UK/1KG4 is a dual-input, 20-bit, charge-digitizing analog-to-digital converter (ADC) supplied in a 28-pin SOIC package (wide-body, 7.50 mm), integrating two independent continuous current-to-digital conversion channels on a single die. Each input uses a dual-switched-integrator front end that digitizes one channel while the other integrates the input charge, providing continuous integration with effectively zero dead time. According to the manufacturer datasheet, the part delivers 20-bit resolution and supports serial data output for downstream processors or FPGAs. An integrating ADC is a type of analog-to-digital converter that converts input charge (the time-integral of a current) into a digital code by transferring that charge onto an internal capacitor and measuring the resulting voltage with high precision. The integrating topology inherently rejects high-frequency noise, provides excellent linearity, and is naturally suited to low-level current signals from transducers. The DDC112 sits in the hierarchy: ADC -> integrating ADC -> charge-digitizing ADC -> data acquisition IC -> signal chain semiconductor. This makes it the right building block where precision, low noise, and direct transducer interfacing matter more than raw sampling speed. Key specifications reported by the manufacturer include 20-bit resolution, an integral linearity of ±0.005% of reading plus ±0.5 ppm FSR, and digital filter noise reduction of 3.2 ppm rms. Two differential current inputs accept low-level current-output sensors such as photodiodes directly, eliminating external transimpedance amplifiers. The device operates from a single analog supply and a digital supply, with a wide dynamic range suited to scientific and instrumentation front ends. Architecturally, the DDC112 uses continuous integration with two integrators per channel and an internal modulator that feeds a digital filter, balancing wide dynamic range against low input-referred noise. Compared with successive-approximation ADCs, the DDC112 trades conversion speed for noise rejection and DC accuracy, which is exactly the trade-off required for photosensor, dosimetry, and radiometric instrumentation applications. Typical applications include photodiode array readout for CT scanners and X-ray dosimetry, vacuum and process instrumentation charge measurement, infrared detector front ends, and high-precision weighing systems based on load cells. Anywhere a low-level current source must be digitized with sub-ppm linearity, the DDC112 class of converter is appropriate. When designing with the DDC112, allocate adequate analog and digital supply decoupling (typically 10 uF bulk plus 0.1 uF ceramic at each supply pin) and follow the recommended grounding scheme that separates analog and digital grounds at a single point near the converter. Use a low-jitter external clock if system noise from the clock would otherwise couple into the integration window. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single reference for selection and substitution decisions.
DDC112YK/2K - Dual 20-Bit Current-Input ADC | Texas Instruments
The Texas Instruments DDC112YK/2K is a dual-input, 20-bit, charge-digitizing analog-to-digital converter (ADC) housed in a 32-pin TQFP (7x7 mm) surface-mount package. Built around continuous dual-integrator topology with simultaneous sampling and per-channel digital filtering, it delivers 3.2 ppm RMS noise and ±0.005% reading / ±0.5 ppm FSR integral linearity, programmable full-scale ranges, and a single +5V supply. What is a charge-digitizing ADC? A charge-digitizing ADC is a type of integrating analog-to-digital converter that converts input current or charge directly into a digital code, without an external front-end transimpedance amplifier. Each integrator channel continuously accumulates sensor current, while a paired second integrator on the same channel is being digitized, eliminating dead time. In the broader taxonomy, it sits within delta-sigma / integrating ADCs > data converters > signal chain ICs > mixed-signal semiconductors, and is most often deployed in photodiode, X-ray, and ionization-chamber front ends where picoamp-level currents must be resolved over a wide dynamic range. Key features include ±0.005% reading integral linearity, 3.2 ppm RMS digital-filter noise, programmable full-scale from approximately 12.5 pC to 350 pC, true integrating architecture, single +5V analog supply, cascadable serial interface, and a continuous integration scheme that maximizes channel throughput. Each of its two inputs uses two integrators in alternation, so one is integrating while the other is digitized, eliminating sample-loss gaps. The architecture combines a precision switched-capacitor integrator per channel with an on-chip 20-bit delta-sigma ADC and digital filter. Charge accumulated on the integration capacitor is digitized sequentially, while the second integrator buffers the input, giving near-100% channel duty cycle. The SPI/serial-compatible interface allows multiple DDC112 devices to be cascaded for higher channel counts. Typical applications include X-ray and CT detector readout (computed radiography arrays, baggage scanners), scintillation and photomultiplier tube front ends, nuclear medicine imaging (PET, gamma cameras), and precision analytical instrumentation such as chromatography detectors and UV/Vis absorbance spectrometers. Each role benefits from the part's ability to integrate picoamp currents directly without a noise-adding amplifier. When designing with this device, plan PCB layout around clean analog and digital ground partitioning, place the reference bypass capacitors close to the REFIN pin, and clock the converter from a low-jitter source to preserve linearity. Choosing the proper integrator capacitor value trades full-scale range against conversion rate. This page consolidates DigiKey distributor pricing, manufacturer datasheet, viable drop-in alternatives, and practical design notes, content not assembled on any single manufacturer page.
DDC112YK/2KG4 - Dual Current Input 20-Bit Sigma-Delta ADC | TI
The Texas Instruments DDC112YK/2KG4 is a dual-input, wide dynamic range, charge-digitizing analog-to-digital converter with 20-bit resolution, supplied in a 32-pin TQFP (7x7 mm) package and shipped in Tape & Reel packaging. It combines two precision current-to-digital conversion channels on a single die, providing 3.2 ppm RMS digital-filter noise reduction and ±0.005% of reading (±0.5 ppm FSR) integral linearity for high-precision measurement. An ADC (Analog-to-Digital Converter) is a semiconductor device that transforms a continuous analog signal into a discrete digital code. The DDC112 belongs to the sigma-delta (Σ-Δ) ADC family — a converter architecture that oversamples the input and uses noise-shaping plus a digital filter to achieve very high resolution at moderate bandwidths. Sigma-delta ADCs sit within the broader hierarchy: ADC -> data converter -> signal chain IC -> power management & analog IC -> semiconductor. They are favored for precision sensor readout where bandwidth is traded for resolution and noise immunity. The DDC112 uses continuous charge integration with two integrators per channel — while one integrator digitizes, the other integrates — eliminating dead time and supporting up to approximately 3 kSPS per channel serial output. Low-level current-output devices such as photodiodes, photomultiplier tubes, and ionization chambers can be directly connected to its inputs, removing the need for external transimpedance amplifiers. The monolithic integration of integrators, ADC, and digital logic reduces board area, leakage paths, and noise pickup compared with discrete charge-measurement chains. Typical applications include digital X-ray detectors, charge-coupled device (CCD) signal chains, photomultiplier tube readouts, scintillation detectors, and precision analytical instrumentation such as mass spectrometers and chromatographs. The wide dynamic range suits photon-counting and low-light imaging front-ends where the input current may span six or more decades. When designing with this device, carefully manage the integration capacitors (CINTA/CINTB) and the system timing of the CONV signal to control conversion rate and full-scale range. Use guard rings around the input traces to suppress leakage, and provide low-impedance analog and digital supply decoupling close to the AVDD/DVDD pins. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
DDC232CGXGR-2 - 32-Ch 20-Bit Current-Input ADC | Texas Instruments
The Texas Instruments DDC232CGXGR-2 is a 32-channel, 20-bit, current-input analog-to-digital converter that integrates 16 sigma-delta modulators and 32 low-level current inputs into a single monolithic device, housed in a 64-ball NFBGA (8 mm x 8 mm) package. It features a true dual-channel integrating topology with up to 3.1 kHz per-channel conversion rate, integral linearity of ±0.025% of reading ±1.0 ppm of full-scale range, and 5.3 ppm-of-FSR input-referred noise. The device operates from a +5 V analog supply and a +2.7 V to +3.6 V digital supply. What is a current-input analog-to-digital converter? A current-input ADC (sometimes called a current-to-digital converter or IDC) is a category of data converter that directly digitizes small input currents rather than voltage, replacing the traditional transimpedance amplifier (TIA) plus voltage ADC chain. Current-input ADCs belong to the broader hierarchy of analog-to-digital converters -> data converters -> mixed-signal ICs -> signal chain. By integrating charge directly on its input, a current-input ADC removes the TIA's noise, drift, and bandwidth trade-offs and is widely used in photodiode, ionization, and picoammeter front-ends where femtoampere-to-microampere signals must be digitized with high precision. Key features include 32 independent current-input channels, full-scale range from approximately 12.5 pC to 350 pC set by external capacitor and clock, serial digital interface for cascading, on-chip integration capacitors to reduce BOM, and very low power dissipation of approximately 7 mW per channel. The wide dynamic range and integrating architecture make the part well-suited for low-frequency, high-precision measurements where 50/60 Hz line rejection is required. The DDC232CGXGR-2 uses a charge-balancing, continuous-integration sigma-delta architecture per channel pair, with digital filtering that yields 20-bit noise-free codes when conversion time is sufficiently long. The -2 suffix indicates the 0 to +70 °C commercial operating temperature range, distinguishing it from the DDC232CKZXGR industrial-grade version. Two on-chip integration capacitors (CF1, CF2) can be combined or switched, allowing four full-scale ranges to be programmed without external capacitors in most applications. Typical applications include X-ray and CT detector arrays, photodiode array readout, gas chromatography detectors, multi-channel ionization chambers, scintillation detector front-ends, and analytical instrumentation such as mass spectrometers. The integrating topology intrinsically rejects 50/60 Hz line frequency interference, which is essential for sensitive laboratory and medical measurements. When designing with this device, ensure the input bias currents do not exceed the integrator's specified range and provide adequate input protection if the source can overdrive. Decouple analog and digital supplies with 0.1 µF and 10 µF capacitors placed as close to the supply balls as possible, and keep analog and digital grounds separated until tied at a single point. This page synthesizes distributor pricing, drop-in same-package alternatives, parametric comparisons against competing TI SKUs, and practical design notes not found in the manufacturer datasheet alone, giving the engineer a single, citable decision-making reference for the DDC232CGXGR-2.
DF1760U/1K - 20-Bit Stereo Sigma-Delta ADC, 28-SOIC | TI
The Texas Instruments DF1760U/1K is a 20-bit stereo sigma-delta analog-to-digital converter with a 28-pin SOP (SOIC) gull-wing package, designed for high-performance audio and precision data acquisition. The DF1760U/1K delivers THD+N of -92 dB typical and -90 dB maximum, and operates from a single 5 V nominal supply with a maximum supply current of 55 mA. It is the tape-and-reel packaged variant of the DF1760U, sharing identical silicon and pinout. A Sigma-Delta ADC is a type of analog-to-digital converter that uses oversampling and noise shaping to achieve high resolution and excellent noise performance. Sigma-Delta converters are widely used in audio applications, precision measurement, and industrial sensors where high dynamic range and low distortion are required. Within the signal chain hierarchy, the DF1760U/1K sits at the conversion stage between analog front-end conditioning and digital signal processing, converting analog inputs into a high-fidelity 20-bit serial digital stream. The DF1760U/1K integrates a dual 20-bit monolithic modulator (PCM1760) together with a monolithic decimation filter, supporting dual-channel operation. The 28-pin SOIC package provides a commercial-grade temperature rating suitable for audio equipment, professional recording interfaces, and high-end instrumentation. The Multi-Bit Enhanced Noise Shaping topology delivers THD+N performance comparable to premium audio converters while maintaining the simplicity of a single-chip solution. Typical applications for the DF1760U/1K include professional audio interfaces, high-end consumer audio DAC/ADC chains, digital mixing consoles, precision measurement instrumentation, and industrial data acquisition where 20-bit resolution and low distortion are required. The device is especially suited for systems that demand low noise and high linearity in a compact surface-mount form factor. When designing with the DF1760U/1K, pay attention to power supply decoupling and clock jitter, as sigma-delta converters are sensitive to supply noise and timing inaccuracies. Use a low-jitter master clock and place decoupling capacitors close to the supply pins. The device accepts balanced or single-ended analog inputs depending on external configuration; consult the manufacturer datasheet for input topology and recommended front-end circuitry. This page synthesizes distributor stock and pricing, drop-in replacement alternatives, and practical design notes not consolidated in the manufacturer datasheet, helping engineers evaluate the DF1760U/1K against modern equivalents and confirm its suitability for new designs or legacy field support.
DS2450S - 16-Bit 1-Wire Quad ADC | Maxim Integrated | SOIC-8
The Maxim Integrated DS2450S is a 16-bit, four-channel successive-approximation analog-to-digital converter that communicates over the Dallas Semiconductor 1-Wire bus. Each of the four high-impedance analog inputs has its own register set for input range, resolution, and alarm threshold configuration, and the device supports both 2.56V and 5.12V input ranges with resolutions up to 16 bits. Housed in an 8-pin SOIC package, the DS2450S draws only 2.5 mW in active conversion and 25 µW in idle mode, making it well suited for parasitic-power sensing nodes. A 1-Wire ADC combines the functions of an analog-to-digital converter with a single-wire serial interface. The 1-Wire protocol is a proprietary Dallas/Maxim bus standard that uses a single bidirectional data line (plus ground return) to carry both power and communication, allowing multiple devices to share one master GPIO pin. The DS2450S is part of the broader ADC family (successive-approximation ADC -> ADC -> data converter -> mixed-signal IC) and is uniquely positioned at the sensing edge of distributed 1-Wire networks where each node needs local analog measurement. Key features include 1-Wire parasitic power support (with optional external VCC), four independently configurable analog input channels, user-programmable resolution per channel, hardware alarm thresholds with conditional-search participation, and on-chip SRAM that retains the channel configuration while the device is powered. The DS2450S also exposes a power-on-reset flag so the bus master can detect when channel settings must be restored. The architecture combines a capacitive-charge-distribution SAR core with an input multiplexer and per-channel configuration memory. The 1-Wire engine implements the standard Dallas hierarchical command set (ROM functions, memory functions, conditional search) and provides a 64-bit unique serial number for multi-drop identification. Total conversion time scales with resolution: at 12 bits across four channels, a full sweep takes roughly 4 ms. Typical applications include remote environmental monitoring (temperature, pressure transducer excitation read-back), industrial 4-20 mA loop digitization, building automation sensor nodes, battery monitoring, and any multi-channel analog sensing point that benefits from the 1-Wire bus's wire-count savings. The conditional-search feature allows a master to poll many DS2450S devices simultaneously to detect which ones have crossed an alarm threshold. When designing with the DS2450S, plan bus topology carefully: 1-Wire networks require a strong pull-up during the low-impedance slot, and long cables degrade rise times. Use a 4.7 kΩ pull-up with short stubs, and budget conversion latency per channel when the master polls multiple devices. The DS2450S is in NRND/EOL status, so new designs should evaluate the modern DS2450 or successor 1-Wire ADCs. This page synthesizes distributor pricing, drop-in package equivalents, and practical 1-Wire bus design notes not collated in the manufacturer datasheet, giving procurement and design engineers a faster path from specification to working hardware.
DS2450S+ - 16-Bit 1-Wire Quad ADC | Analog Devices
The Analog Devices DS2450S+ is a 16-bit, 4-channel successive-approximation analog-to-digital converter (ADC) that communicates over the Dallas Semiconductor 1-Wire bus, housed in an 8-pin SOIC (S) package. According to the manufacturer datasheet, the device integrates a four-to-one analog input multiplexer, a SAR ADC core, and per-channel configuration registers for range, resolution, and alarm threshold, allowing it to deliver digitized analog data plus conditional-search participation with a single data line plus ground return. What is a 1-Wire ADC? A 1-Wire ADC combines an analog-to-digital converter with the Maxim/Analog Devices 1-Wire protocol, which carries both power and bidirectional data on a single conductor (plus ground). In the broader component taxonomy, the DS2450 is an ADC -> data converter -> signal conditioning IC -> analog mixed-signal semiconductor. The 1-Wire family's defining feature is that every device has a unique 64-bit ROM ID, enabling multi-drop buses where the host microcontroller can identify and address individual nodes using only one GPIO pin - dramatically simplifying wiring in distributed sensor and identification applications. Key specifications include 16-bit resolution, four analog input channels, software-selectable input ranges (0 to 5.12V, 0 to 2.56V, ±5.12V, ±2.56V when powered, plus 0 to 5.12V VCC-derived ranges when parasitically powered), per-channel 8-bit offset and 8-bit gain calibration, and 4 ms total conversion time for four 12-bit conversions in sequence. Configuration, calibration constants, and alarm thresholds are stored in on-chip SRAM that can be made non-volatile by an external EEPROM commit step. The architecture combines an internal bandgap reference, a successive-approximation register driven by a self-contained clock, a four-channel analog multiplexer, and the 1-Wire protocol engine with 64-bit ROM ID. Because the device can be powered either from the 1-Wire bus (parasitic power) or from an external VCC, host systems can place the DS2450 at remote locations without running a dedicated power wire. The 1-Wire physical layer uses an open-drain pull-up with either internal or external strong pull-up to support A/D conversion currents. Typical applications include remote analog sensing over a single data line (temperature, pressure, light, voltage monitoring at the edge of a 1-Wire network), building automation and HVAC sensor nodes, industrial control point-of-measurement, battery monitoring in distributed systems, and identification/condition monitoring of field equipment. The conditional-search feature lets the bus master detect channel over/under threshold events without polling every channel, a substantial bandwidth advantage on multi-drop buses. When designing with the DS2450, remember that the 1-Wire bus requires a 4.7 kΩ pull-up to VCC and that parasite-powered operation demands a strong pull-up during the A/D conversion window. Decouple VCC with at least 100 nF close to the pin, keep analog input traces short, and use the read scratchpad / write scratchpad command sequence to commit calibration and alarm values to the device's non-volatile memory. This page combines distributor pricing, drop-in alternatives, and practical design guidance beyond what the manufacturer datasheet alone provides, optimized for engineers evaluating the DS2450S+ for new designs and supply-chain recovery.
DS2450S+T&R - Quad 1-Wire 16-Bit ADC | Analog Devices
The Analog Devices (formerly Maxim Integrated) DS2450S+T&R is a quad-channel, 16-bit, successive-approximation analog-to-digital converter (SAR ADC) that communicates over the Maxim 1-Wire bus. It provides four high-impedance analog input channels for measuring voltages over a single digital data line plus ground return, eliminating the need for a dedicated multi-wire ADC interface. The device integrates user-programmable input ranges (2.56 V or 5.12 V), user-programmable resolution (1 to 16 bits) and per-channel alarm thresholds. The +T&R suffix designates the 8-pin SOIC package supplied on tape-and-reel for high-volume SMT assembly. The DS2450 is the most widely deployed ADC in the Maxim 1-Wire converter family. A 1-Wire ADC is a converter whose digital serial interface uses a single data line (plus ground) defined by Dallas Semiconductor (now part of Analog Devices), enabling multiple devices to share a common bus with unique 64-bit ROM IDs. The DS2450 is therefore typically used in applications where a small number of analog signals must be read remotely with minimum wiring, replacing parallel ADCs that would otherwise require several dedicated I/O lines or an SPI/I2C bus. Key features include four analog inputs with switchable input ranges (2.56 V and 5.12 V full scale), 1 to 16 bits of programmable resolution (with conversion time scaling accordingly), per-channel high/low alarm thresholds with conditional-search support, and on-chip SRAM that retains user settings while VCC or the 1-Wire data line is powered. A built-in multidrop controller allows multiple DS2450s to be identified and operated on a common 1-Wire bus, and each device responds to the 1-Wire Conditional Search command when an alarm condition is met. The DS2450 uses a successive-approximation register (SAR) architecture with a capacitive-charge redistribution DAC, achieving 16-bit resolution with no pipeline latency. Power-on reset and a power-on reset flag signal the bus master to restore the device settings stored in SRAM after supply or parasite-power interruptions, ensuring deterministic behavior in noisy industrial environments. Typical applications include remote temperature and analog voltage monitoring over long cable runs, building-automation sensors, industrial process monitoring (4-20 mA loop digitization), environmental monitoring stations, HVAC sensor networks, and any distributed measurement node where minimizing wiring is critical. Each ADC is uniquely addressable on the bus, simplifying node inventory and remote firmware updates. When designing with the DS2450, ensure the 1-Wire bus is properly terminated per Maxim application guidance, with a 4.7 kohm pull-up to VCC (typically 5 V) on the DQ line. Strong pull-up during conversion timeouts is recommended for parasite-powered nodes. Note that the DS2450 is in NRND (Not Recommended for New Designs) status per the manufacturer lifecycle policy - design engineers should verify long-term availability or consider migration paths for new designs. This page synthesizes distributor pricing, lifecycle status, drop-in alternatives and practical design guidance not consolidated in the manufacturer datasheet, providing an actionable summary for procurement and design engineers.
HI1-574AKD-5 - 12-Bit SAR ADC 50kSPS 28-SBDIP | Renesas
The Renesas HI1-574AKD-5 is a complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) with an internal +10V reference, on-chip clock, three-state outputs, and a microprocessor-compatible parallel interface, delivered in a 28-pin ceramic side-brazed DIP (SBDIP) package. It provides up to 50 kSPS throughput across one SAR channel with two analog input ranges (0V to +10V unipolar and -5V to +5V bipolar) and supports both 8-bit and 12-bit right-justified output modes. A SAR ADC is a type of data converter that uses a binary-weighted capacitor array and a successive-approximation register to digitize an analog input one code at a time per clock cycle. Within the broader data acquisition hierarchy, a SAR ADC sits between flash converters (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, slower). The HI-574A family belongs to the precision industrial ADC category, often used in legacy microprocessor-controlled measurement equipment. Key features include bipolar analog processing with the Renesas dielectric-isolation process for enhanced AC performance, ±1 LSB maximum linearity, and an internal buried-zener reference trimmed to +10.00 V. The three-state output buffers allow direct connection to 8-bit or 16-bit data buses without external logic, and a single +5 V supply plus ±12 V to ±15 V analog rails power the converter. The package is specified across the 0 °C to +75 °C commercial temperature range. Architecturally, the converter combines two monolithic dice inside one hermetic package: a bipolar analog front-end die using dielectric isolation, and a CMOS digital control die. This hybrid construction is a hallmark of mid-1980s precision converters and explains the device's strong DC accuracy plus reasonable AC performance. Designers must sequence ±15 V before +5 V at startup to avoid latch-up. Typical applications include industrial process control instrumentation, multi-channel data acquisition front-ends, panel meters, and legacy replacement of AD574A/AD574AKD pinouts. Designers choose this part when they need a true drop-in for an existing AD574A footprint with extended temperature screening and internal reference. A primary design consideration is supply sequencing: bring up the ±12 V to ±15 V analog supplies before the +5 V logic supply to prevent latch-up damage. The internal reference has a finite drive capability, so buffered external use requires an op-amp follower. This page synthesizes distributor pricing, drop-in AD574A-family alternatives, and design notes not consolidated on the manufacturer datasheet.
HI1-674AKD-5 - 12-Bit 83kSPS SAR ADC, 28-SBDIP | Renesas
The Renesas / Intersil HI1-674AKD-5 is a complete 12-bit successive-approximation analog-to-digital converter (SAR ADC) that integrates a +10V buried-zener reference, an internal clock, three-state outputs, and a full microprocessor interface in a 28-pin Side-Brazed DIP (SBDIP) ceramic package. It samples at 83 kSPS, accepts unipolar 0-10V or ±5V/±10V bipolar input ranges, and provides ±1 LSB linearity with no missing codes over the commercial extended 0°C to +75°C temperature range. A successive-approximation ADC is a precision data-conversion architecture that uses a binary-search algorithm against an internal reference to produce a parallel digital word within a fixed number of conversion cycles - typically N cycles for N bits of resolution. Within the data-converter hierarchy, SAR ADCs sit between flash converters (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, lowest bandwidth). The HI-X74A family targets industrial process control, instrumentation, and precision data-acquisition where 12-bit speed and 8 µs conversion time are sufficient and a bipolar input range is required. Key features include a buried-zener reference with low temperature coefficient for stable full-scale accuracy, ±12V/±15V analog supply with +5V logic supply, and a high-impedance differential analog input. Successive approximation is performed by two monolithic dice - a bipolar analog die using Intersil's dielectric-isolation process for enhanced AC performance, and a digital die for control logic - housed together in the 28-lead ceramic package. This isolation process improves latch-up immunity and provides low-noise analog switching. Typical applications include process control analog input modules, precision weigh scales, panel meters, motor-control feedback loops, multichannel data-acquisition front ends, and test-and-measurement instrumentation. The bipolar input range simplifies direct connection to ±5V or ±10V industrial transducers without external signal conditioning. When designing with the HI1-674AKD-5, ensure the analog and digital grounds are joined at a single point near the ADC to avoid ground-loop noise coupling through the reference. Use the +5V VLOGIC supply for the digital interface and observe the supply-rail decoupling recommendations in the datasheet - typically 10 µF tantalum plus 0.1 µF ceramic at each supply pin. This page synthesizes distributor pricing, drop-in alternatives from the same HI-X74A family, and practical design notes not found in the manufacturer datasheet alone.