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ADC0820BCWMX

ADC0820BCWMX - 8-Bit 1.5µs Half-Flash ADC w/ T/H | Texas Instruments

The Texas Instruments ADC0820BCWMX is an 8-bit high-speed microprocessor-compatible analog-to-digital converter with on-chip track-and-hold, sampling at up to 667 kSPS (RD mode) and using a half-flash (two-flash) conversion architecture to deliver 1.5 µs typical conversion time. The device is supplied in a 20-pin SOIC (DW) wide-body package, operates from a single +5 V supply (VCC), and offers both microprocessor-compatible parallel interface modes (RD mode for tying directly to a 8080-style bus, and WR-RDM modes for standalone conversion). Input range is 0 V to +5 V when VREF(+) = +5 V and VREF(−) = GND. A half-flash ADC is a parallel type of analog-to-digital converter that uses two 4-bit flash sub-converter stages rather than a full 256-latch comparator array, dramatically reducing die area, power consumption, and cost versus a true flash converter while still achieving sub-microsecond per-code sampling. Within the broader data-converter hierarchy, the ADC0820 sits at the low-resolution high-speed node: it is a successive-approximation-class part on the throughput axis (faster than most SAR), yet simpler and cheaper than a true flash ADC. It belongs to the power-management-and-conversion family of mixed-signal data-acquisition ICs. The half-flash architecture performs a coarse 4-bit MSB conversion, then a fine 4-bit LSB conversion around the residue, producing a complete 8-bit code in two clock edges. Key features include 0 V to +5 V analog input range, on-chip track/hold eliminating the need for an external sample capacitor, ratiometric reference inputs for ratiometric transducers, and TTL-compatible digital outputs. Power dissipation is approximately 75 mW typical, and the device is specified for 0°C to +70°C (commercial) or −40°C to +85°C (industrial) operation depending on grade. Typical applications include digital-panel meters, process control front ends, microcontroller analog input expansion, video digitizing at low bandwidth, instrumentation, and portable data loggers where high sample rate and low cost matter more than 12-bit precision. The wide SOIC-20 footprint also eases hand-prototyping and breadboard integration compared with smaller DFN/QFN alternatives. When using this device, ensure the analog input driving bandwidth exceeds the ADC's input bandwidth, place a 0.1 µF decoupling capacitor directly at VCC, and route the analog/digital grounds with a star-ground or split-plane layout to avoid digital-noise coupling into the comparator ladder.

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ADC0820CC/D

ADC0820CC/D - 8-Bit 1.5us Half-Flash ADC Die | Maxim Integrated

The Maxim Integrated ADC0820CC/D is a CMOS 8-bit analog-to-digital converter using a half-flash conversion technique to deliver a 1.5 microsecond conversion time at 75 mW maximum power dissipation, supplied in bare die form. The half-flash architecture uses 31 comparators split between a most-significant 4-bit ADC and a least-significant 4-bit ADC, providing high-speed conversion without the cost of a full flash design. An ADC (analog-to-digital converter) is a data-acquisition component that converts continuous analog voltage signals into discrete digital codes, serving as the bridge between the analog physical world and digital signal processors, microcontrollers, or FPGAs. The half-flash (or sub-ranging) topology is a speed/cost compromise between successive-approximation (SAR) ADCs and full-flash ADCs, achieving sub-2-microsecond conversion at modest die area and low power. ADC ICs are categorized within the broader signal-chain hierarchy: sensor -> analog front end -> ADC -> DSP/MCU -> actuator/logic. Key features of the ADC0820CC/D include an on-chip sample-and-hold (track/hold) front-end that eliminates the need for an external THA in many applications, single +5V supply operation, and a commercial temperature grade of 0C to +70C. The device supports both ratiometric and absolute-voltage conversions, with a typical input range of 0V to +5V when paired with a +5V reference. Its built-in track/hold function allows accurate digitization of fast-changing signals up to the converter's full-scale bandwidth. From a technical-depth perspective, the half-flash architecture first performs a coarse 4-bit conversion, then subtracts the DAC residue and runs a fine 4-bit conversion on the remainder; the two 4-bit results are combined and error-corrected to yield the final 8-bit code. This dual-step method gives the ADC0820 a typical aperture time of 100 ns and a maximum conversion time of approximately 1.5 us, while limiting comparator count to 31 - far fewer than the 255 comparators required by a true single-step flash converter. Typical applications include digital instrumentation, video digitizing, ultrasonic signal processing, high-speed data logging, and process-control front ends. The track/hold input also makes it suitable for multiplexing multiple channels into a single ADC at high switching rates without losing accuracy due to aperture jitter. When designing with this part, treat the bare die as an ESD-sensitive component and use matched-impedance bond-wire layouts to preserve the 1.5 us timing budget. Decoupling the +5V supply with a 0.1 uF ceramic capacitor placed within 5 mm of each bond pad is recommended to keep digital ground bounce out of the analog sample-and-hold path. This page combines Maxim Integrated datasheet values with distributor pricing and drop-in same-family alternatives to give design engineers a one-stop reference not found in any single source.

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ADC0820CCN/PB

ADC0820CCN/PB - 8-Bit 667kSPS Flash ADC w/ Track-Hold | TI

The Texas Instruments ADC0820CCN/PB is an 8-bit, high-speed, microprocessor-compatible analog-to-digital converter (ADC) with an integrated track-and-hold function, packaged in a 20-pin PDIP through-hole package. It supports a single analog input channel and delivers up to 667 kSPS conversion rate using a semi-flash architecture, achieving a maximum conversion time of 2.5 us. The device operates from a single 4.5V to 8V supply with a 5V typical operating point. An analog-to-digital converter (ADC) is a data-acquisition integrated circuit that converts real-world continuous analog voltages into discrete digital codes that a microcontroller, microprocessor, or DSP can process. The 8-bit ADC0820 falls in the "moderate-resolution, high-speed" tier of the data-converter taxonomy: ADC -> successive-approximation / flash ADC -> data converter -> data-acquisition IC -> signal conditioning -> mixed-signal semiconductor. Semi-flash (or half-flash) converters like the ADC0820 use two parallel low-resolution flash stages to halve the number of comparators versus a true flash design while delivering comparable speed. Key features include parallel CMOS-compatible output, an input range of 0V to 5V, a built-in sample-and-hold that allows full throughput on rapidly changing signals, and ratiometric operation when the reference is tied to the supply. The track-and-hold function ensures accurate conversion of fast analog transients without an external SHA, simplifying front-end design. The semi-flash (two-step) architecture performs a coarse 4-bit conversion followed by a fine 4-bit conversion, generating the final 8-bit result in roughly 1.5 clock cycles. This topology yields low input capacitance and modest power consumption compared with true flash converters while avoiding the long acquisition times of successive-approximation ADCs. Typical applications include digital voltmeters, panel meters and bench instrumentation, process-control analog front-ends, video digitizing at sub-Nyquist rates, disk-drive servo control loops, and µP-based data-logging boards. The DIP-20 footprint and parallel interface suit legacy 8-bit microcontrollers and replacement of obsolete ADC0820 sockets without board rework. When designing with this part, place a 100 nF decoupling capacitor directly between V+ and GND as close to the pins as possible, and keep analog and digital grounds on a single low-impedance plane tied at one point. The reference input may be driven from a 2.5V precision reference or from the 5V supply for ratiometric conversions using bridge or resistive sensors. This page synthesizes current distributor availability, drop-in alternatives in the DIP-20 footprint, and practical PCB design notes for the ADC0820 family that are not found in the manufacturer datasheet.

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ADC082S021CIMM

ADC082S021CIMM - 8-Bit 200ksps 2-Ch SAR ADC | Texas Instruments

The Texas Instruments ADC082S021CIMM is a low-power, two-channel CMOS 8-bit analog-to-digital converter (ADC) with a high-speed serial interface, housed in an 8-VSSOP (DGK) package. It supports a sample rate range of 50 ksps to 200 ksps, operates from a single +2.7V to +5.25V supply, and consumes only 1.6 mW at 3V or 5.8 mW at 5V, making it well suited for battery-powered and space-constrained designs. The converter uses a successive-approximation register (SAR) architecture with an internal track-and-hold and delivers straight-binary output compatible with SPI, QSPI, MICROWIRE, and many DSP serial interfaces. The ADC082S021CIMM (without the NOPB suffix) is now listed as obsolete by DigiKey; the /NOPB lead-free variant with the same die and footprint is recommended for new designs. An SAR ADC is a type of analog-to-digital converter that uses a successive-approximation register to perform binary search on the input voltage. SAR ADCs are valued for their low power, deterministic latency, and excellent dynamic performance at moderate resolutions. The ADC082S021 belongs to the broader hierarchy of data converter ICs (ADC/DAC) within the signal-chain semiconductor category, and as an 8-bit device it targets applications that do not require high resolution but do need low latency and small size. Key features include an analog input bandwidth suitable for the 50–200 ksps range, a hardware-/SPI-compatible serial data output, an external SCLK input from 0.8 MHz to 3.2 MHz, and an industrial operating temperature range of -40°C to +85°C. The 8-pin VSSOP (DGK) package exposes one chip-select input and two analog input channels, plus the serial data output, SCLK, and supply pins. The simple digital interface requires only three digital lines (CS, SCLK, DOUT), which simplifies PCB routing in microcontroller- or DSP-based systems. Typical applications include portable instrumentation, sensor signal acquisition, battery monitoring, consumer audio level meters, industrial process controls, and handheld meters. The wide 2.7V–5.25V supply range allows direct connection to 3.3V or 5V microcontrollers without level shifters. Because the SAR architecture has no pipeline delay, the part is also well-suited to closed-loop control loops where deterministic conversion latency matters. When designing with this ADC, observe the analog input settling requirements and the source-impedance-driven acquisition time; use a low-impedance input buffer when the source impedance exceeds the datasheet limit. Decouple VA and VD with 0.1 µF and 10 µF capacitors placed as close as possible to the supply pins to keep digital switching currents out of the analog input path. This page synthesizes the manufacturer datasheet parameters with distributor pricing, drop-in alternatives (including the active /NOPB and -X tape-and-reel variants), and practical design notes that are not collected in a single datasheet table.

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ADC082S101CIMM

ADC082S101CIMM - 8-Bit 1Msps 2-Ch SAR ADC | 8-MSOP

The Texas Instruments ADC082S101CIMM is an 8-bit, 2-channel successive-approximation register (SAR) analog-to-digital converter that supports sample rates from 500 ksps to 1 Msps, housed in an 8-pin VSSOP (DGK) package. It operates from a single +2.7V to +5.25V supply, draws a low 1.6 mA typical supply current at 3V, and provides straight-binary serial output compatible with SPI, QSPI, MICROWIRE, and many DSP serial interfaces. Per the manufacturer datasheet, the converter delivers ±0.2 LSB typical INL and ±0.2 LSB typical DNL with no missing codes over the industrial -40°C to +85°C range, and integrates an on-chip track-and-hold with two single-ended analog inputs (IN1, IN2). An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a precision data-acquisition building block that converts an analog input into a digital code one bit at a time using a comparator and a binary-weighted DAC. It belongs to the medium-speed, medium-resolution converter hierarchy, sitting between flash converters (fastest, lowest resolution) and sigma-delta converters (highest resolution, slowest). SAR ADCs are widely used in industrial control, sensor signal conditioning, and embedded data acquisition because they combine deterministic latency, low latency-to-sample, low power dissipation, and small package size. The ADC082S101CIMM further targets cost-sensitive multi-channel systems by integrating a 2-input mux. Key features include 1 Msps maximum throughput (fSCLK = 8-16 MHz), 2 single-ended analog inputs with an internal analog mux, an external SCLK-driven serial frame, an active-low CONV/TRAIL signaling convention, and a power-down mode that drops quiescent current to under 1 µA between conversions. The VSSOP-8 footprint makes it one of the smallest 2-channel SAR ADC options on the market, ideal for space-constrained portable instrumentation. The architecture is a charge-redistribution SAR with a sample-and-hold front-end and a high-speed serial readout engine. The wide 2.7V-5.25V supply range lets the ADC082S101CIMM directly digitize 0-5V transducer signals powered from the same +5V system rail used by logic-class host MCUs, eliminating the need for level shifters. Typical applications include portable battery-powered instrumentation, industrial process-control sensor digitizers, motor-speed and position feedback loops, handheld multimeter front-ends, optical-sensor signal chains, and consumer-electronics audio/sensor front-ends. The low quiescent current extends battery life in portable systems while the 1 Msps rate handles most closed-loop control needs. When designing with this device, ensure the analog input drive amplifier is fast enough to settle within the acquisition window (typically 200 ns) - a low-output-impedance op-amp such as the OPA2350 is recommended. Add 0.1 µF and 10 µF decoupling capacitors close to VA and GND pins to keep SAR reference noise out of the conversion result.

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ADC082S101CIMMX

ADC082S101CIMMX - 2-Ch 8-Bit 1MSPS SAR ADC | Texas Instruments

The Texas Instruments ADC082S101CIMMX is a 2-channel, 8-bit, 500 ksps to 1 MSPS successive-approximation-register (SAR) analog-to-digital converter housed in an 8-pin VSSOP (DGK) package. It operates from a single +2.7 V to +5.25 V supply, consuming 3.2 mW at 3 V and 9.6 mW at 5 V, and provides straight-binary serial output compatible with SPI, QSPI, MICROWIRE, and many DSP serial ports. An ADC (analog-to-digital converter) is a mixed-signal data-acquisition IC that samples a continuous-time analog voltage and converts it into a discrete digital code. Within the broader semiconductor taxonomy, ADC082S101 belongs to the SAR converter family (instantaneous sampling, no pipeline latency), which is a sub-class of data converters under signal-chain / data-acquisition ICs, itself part of the power management and analog signal-chain hierarchy. SAR ADCs are preferred where deterministic latency, simple serial interfacing, and low power are required. Key features include two single-ended input channels multiplexed into a single SAR core, throughput scalable from 500 ksps to 1 MSPS via an external SCLK between 8 MHz and 16 MHz, an input span of 0 V to VA, and an industrial -40 °C to +85 °C temperature grade. The VSSOP-8 footprint with 0.65 mm pitch suits compact, surface-mount designs. The device uses a charge-redistribution SAR architecture with an on-chip sample-and-hold and an internal reference equal to VA. The serial interface is a 4-wire SPI/QSPI/MICROWIRE-compatible port (CS, SCLK, DOUT, +VA/GND), with data clocked out on falling SCLK edges. Because VA doubles as the reference, no external reference component is needed, but rail noise directly couples into conversion accuracy. Typical applications include portable instrumentation, battery-powered sensor front ends, industrial process-control monitoring points, and consumer-system signal conditioning where a low-channel-count, deterministic-latency converter is sufficient. When designing with this device, place a 0.1 µF decoupling capacitor close to the VA pin and keep analog input traces short. Because VA is the reference, any noise or ripple on the supply rail will appear as conversion error; an LDO or RC filter on VA is recommended in noisy environments. The "M" trailing the part number denotes tape-and-reel packaging. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing an engineering-oriented decision resource.

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ADC0831CCN

ADC0831CCN - 8-Bit Serial SAR ADC, 1-Ch | Texas Instruments

The Texas Instruments ADC0831CCN is an 8-bit successive-approximation analog-to-digital converter with a serial I/O interface and a single differential analog input channel, housed in an 8-pin PDIP (N) through-hole package. It supports a 0V to 5V analog input range with a 4.5V to 6.3V VCC supply, delivering a typical conversion time of 32 µs using the built-in SAR clock. An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that resolves each conversion bit-by-bit against a precision internal DAC, achieving a deterministic conversion time independent of input signal. SAR ADCs sit in the hierarchy of data converters (ADC -> Nyquist ADC -> SAR ADC -> precision mixed-signal IC) and are favored for applications demanding low latency, zero pipeline delay, and DC accuracy without the switching noise of delta-sigma architectures. The ADC0831 family is a long-standing 8-bit SAR series originally introduced by National Semiconductor, now maintained under the TI brand. Key features of the ADC0831CCN include: 8-bit resolution, single differential input, serial (Microwire-compatible) digital output, on-chip sample-and-hold, ratiometric reference option (VREF tied to VCC), low power consumption of approximately 15 mW at 5V, and an operating temperature range of -40 °C to +85 °C. The converter requires only an external reference capacitor and a small RONREF resistor on the REF pin to set the reference voltage. Internally, the part uses a chopper-stabilized architecture for low offset, and the analog input is sampled on the falling edge of the conversion command. The serial data interface allows easy connection to microcontrollers, shift registers, or SPI-compatible controllers with a single chip-select signal. Typical applications for the ADC0831CCN include industrial process control sensor digitization, battery monitoring and portable instrumentation, panel-meter and digital-panel-meter analog inputs, simple embedded data acquisition, and legacy replacement of older discrete A/D circuits. The 8-bit resolution and ratiometric reference capability make it well-suited for bridge sensors, thermistor networks, and potentiometric measurements where the supply itself defines the full scale. Designers often pair the ADC0831CCN with a microcontroller's general-purpose pins because the serial interface requires only three wires (CS, CLK, DO). When designing with the ADC0831CCN, ensure the REF pin capacitor (typically 10 µF to 33 µF) and the RONREF resistor (typically 5 kΩ) are sized correctly for the chosen internal clock rate, and decouple VCC with a 0.1 µF ceramic capacitor placed close to the supply pin. Unlike modern 12/24-bit sigma-delta parts, the ADC0831CCN offers 8-bit resolution only, so it should be selected when 8-bit accuracy is sufficient rather than for precision measurement. This page synthesizes distributor availability, drop-in alternatives in the same PDIP-8 footprint, and practical interface notes not consolidated in the manufacturer datasheet.

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ADC0831CCWM

ADC0831CCWM - 8-Bit Serial I/O ADC, 1-Ch, SOIC-14 | TI

The Texas Instruments ADC0831CCWM is an 8-bit successive approximation register (SAR) analog-to-digital converter with a single differential input channel and a serial MICROWIRE-compatible interface, packaged in a 14-pin SOIC (0.295 in / 7.50 mm width). Operating from a single 5 V supply, the device delivers a conversion time of approximately 32 µs and consumes roughly 15 mW of power. What is an SAR ADC: An SAR (Successive Approximation Register) ADC is a type of analog-to-digital converter that uses a binary-search algorithm against an internal DAC to determine each bit of the conversion. SAR ADCs are favored for medium-speed, medium-resolution sampling because they offer deterministic latency, low power consumption, and a small footprint compared to pipeline or delta-sigma converters of similar resolution. The ADC0831 specifically belongs to the ADC083x family of serial-output converters, which sits at the lower end of TI's data-converter portfolio and is positioned for cost-sensitive embedded designs. Key features of the ADC0831CCWM include serial I/O via TI/NSC MICROWIRE, a separate analog and digital ground pin for noise isolation, an on-chip sample-and-hold, and TTL/CMOS-compatible logic inputs. Per the TI product page, the device supports a single-ended analog input on the ADC0831 variant (versus the multiplexed ADC0838) and provides ±½ LSB or ±1 LSB total unadjusted error grades. Architecturally, the part integrates a capacitive DAC, comparator, SAR logic, and shift register in a single die. The serial interface uses CS, CLK, and DO pins, allowing multiple devices to share a bus. Because the ADC0831 lacks an internal clock, throughput scales directly with the externally applied CLK frequency, with typical applications driving the converter at 100 kHz to 1 MHz. Typical applications for the ADC0831CCWM include industrial process control, remote data acquisition via serial digital links, battery-powered instrumentation, sensor signal conditioning, and embedded microcontroller-peripheral interfaces where a small pin-count ADC is required. The wide SOIC package also suits hand-soldered prototypes and easy rework. When designing with this device, ensure the analog input is properly protected against over-voltage and that decoupling capacitors are placed close to the supply pin to minimize digital-induced noise coupling into the analog front end. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the TI datasheet for engineers specifying the ADC0831CCWM in new designs or supporting legacy boards.

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ADC0832CCN

ADC0832CCN - 8-Bit 2-Ch SAR ADC, MICROWIRE Serial, 8-PDIP | TI

The Texas Instruments ADC0832CCN is an 8-bit successive-approximation analog-to-digital converter with two configurable input channels, a serial MICROWIRE-compatible interface, and an 8-pin PDIP (N) package. It accepts a single-ended analog input on CH0 and a differential pair on CH1 (CH0+, CH1-), supports a sampling rate of approximately 31 ksps, and operates from a single 4.5V to 6.3V supply. The part is designed for low-cost embedded data acquisition and is a member of the ADC0831/0832/0834/0838 family that scales channel count without changing the serial protocol. A successive-approximation-register (SAR) ADC is a converter architecture that uses a binary search algorithm to resolve each conversion in a fixed number of clock cycles equal to the resolution. SAR ADCs are valued for deterministic latency, no pipeline delay, and excellent DC accuracy at moderate speeds, which makes them the dominant topology for industrial control, sensor read-out, and precision instrumentation in the 8-16 bit, 1 ksps to 1 Msps range. ADCICs in this family output data via a 4-wire MICROWIRE-style interface that maps directly to COPS processors and standard SPI shift registers. Key features of the ADC0832CCN include 8-bit resolution (1 LSB = VREF/256), 2 analog input channels (one single-ended, one differential), a serial MICROWIRE-compatible data port, internal sample-and-hold, a maximum sampling rate of approximately 31 ksps, and 4.5V to 6.3V single-supply operation. The 8-PDIP package supports through-hole PCB assembly, which is convenient for prototyping, legacy designs, repair, and hobbyist applications where surface-mount assembly is impractical. The internal SAR engine is clocked from the external serial interface clock; the converter uses an on-chip sample capacitor and an internal reference comparison path, allowing the user to connect an external reference (typically 5V) at the VREF pin. The serial I/O format is MSB-first with NRZ coding, and the chip-select line frames conversions, making the part simple to drive from a microcontroller UART or SPI peripheral in mode-0. The part draws only a few milliamps from a single supply and does not require a negative rail. Typical applications include process control analog front ends, panel-meter and instrumentation read-out boards, sensor signal conditioning for thermocouples and strain gauges, portable handheld test equipment, and hobbyist or education projects that benefit from through-hole pinout. The wide 0C to 70C commercial temperature range and 8-PDIP package support retrofits in legacy designs originally specified around the ADC0831 family. When designing with the ADC0832CCN, ensure the external reference is stable and decoupled at the VREF pin with a 0.1 uF ceramic capacitor, and that the analog input source impedance is below 10 kOhms to avoid conversion errors caused by the input sampling capacitor. Tie unused analog inputs to ground or to a defined mid-suprail voltage to minimize channel-to-channel crosstalk. This page synthesizes distributor pricing from real-time stock feeds, pin-compatible drop-in alternatives including the cross-brand XD0832CC identified in web sources, and practical design notes that supplement the manufacturer datasheet.

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ADC0832CCWM

ADC0832CCWM - 8-Bit Serial I/O ADC w/ 2-Ch MUX | Texas Instruments

The Texas Instruments ADC0832CCWM is an 8-bit successive-approximation analog-to-digital converter with a 2-channel analog multiplexer and a serial I/O interface, housed in a 14-pin SOIC (WM) package. It accepts one single-ended input selected by the on-chip MUX, runs from a single 5 V DC supply, and provides a TTL/MOS-compatible serial data stream with a typical conversion time of 32 µs. The part belongs to the ADC083x-N family of serial-output SAR ADCs that share a common pinout across 1-, 2-, 4-, and 8-channel variants. A Successive Approximation Register (SAR) ADC is a sampled-data converter that uses an internal binary-weighted capacitor DAC and a comparator to perform a bit-by-bit search for the analog input level. Compared with integrating or flash converters, SAR ADCs offer a balanced trade-off between speed, accuracy, and cost for moderate-resolution measurement channels. The ADC0832 sits in the signal chain between analog sensors (temperature, position, voltage, current) and a microcontroller's digital domain, where it serves as the bridge that converts real-world analog signals into a serial bitstream that the MCU can read over a 2- or 3-wire synchronous interface. Within the broader hierarchy, the ADC0832 is classified as an ADC -> data converter -> signal chain IC -> semiconductor device. Key specifications include 8-bit resolution, ±½ LSB and ±1 LSB total unadjusted error grades (designated by the C and B suffix variants), a 5 V DC single-supply operating range, 15 mW typical power dissipation, and a 32 µs typical conversion time. The serial data interface uses CS, CLK, and DO pins to deliver the conversion result to the host controller, eliminating the need for a parallel data bus. The device is specified for an operating temperature range of -40 °C to +85 °C. The architecture uses a switched-capacitor DAC together with a chopper-stabilized comparator, allowing differential-style ratiometric measurements when paired with a reference voltage applied across the analog input span. Two software-selectable analog input channels make it suitable for measuring two sensors with one converter. The serial interface simplifies opto-isolation of the data path in noisy industrial environments. Typical applications include portable battery-operated instrumentation, remote-sensor data acquisition over isolated serial links, process-control front-ends, simple digital panel meters, and embedded 5 V MCU analog input modules. Designers should note that the part is in the legacy ADC083x-N family and is not recommended for new designs where TI suggests migrating to modern 12-/16-bit SAR converters such as the ADS1232 or ADS101x/ADS111x I²C family.

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ADC0832CIWM/NOPB

ADC0832CIWM/NOPB - 8-Bit Serial 2-Ch SAR ADC, 14-SOIC | Texas Instruments

The Texas Instruments ADC0832CIWM/NOPB is an 8-bit successive-approximation analog-to-digital converter with two multiplexed input channels, a serial MICROWIRE-compatible I/O interface, and an industry-standard 14-pin SOIC (SOIC-14) wide-body package. According to the datasheet, the converter supports a sampling rate of approximately 31 ksps, accepts a single supply, and provides separate analog and digital ground pins to preserve noise immunity in mixed-signal layouts. What is an SAR ADC? A successive-approximation-register analog-to-digital converter is a type of ADC that converts an analog input to a digital code using a binary-search algorithm driven by an internal DAC and comparator. SAR ADCs occupy a niche between high-speed flash and high-resolution delta-sigma converters: they deliver mid-range resolution (8 to 18 bits) at moderate speeds (tens of ksps to several Msps) with low latency and a small, deterministic acquisition window, making them well suited for multiplexed data-acquisition, instrumentation, and embedded control. The ADC0832 family sits at the lowest-resolution end of this hierarchy, where engineers choose it specifically for cost-sensitive or legacy-compatible designs rather than precision. Key electrical features include 8-bit resolution, two analog input channels selected via the dedicated MUXOUT/MUXIN pins in daisy-chain configurations, a serial data interface compatible with the NSC MICROWIRE protocol, and an operating temperature range of -40 °C to +85 °C (industrial grade). The wide-body 14-SOIC package simplifies hand prototyping and breadboarding while still supporting automated surface-mount assembly. The 'NOPB' suffix denotes a lead-free, RoHS-compliant finish. The ADC0832CIWM/NOPB uses a charge-redistribution capacitive DAC at the core of its SAR loop, with an internal sample-and-hold capturing the input at the start of each conversion. The two analog inputs share a common ground reference, so any common-mode noise present on both channels will be rejected by the differential input structure when used in pseudo-differential mode. The single-supply requirement reduces system complexity compared to ±15 V designs, although the absolute input range remains tightly bounded. Typical applications include portable battery-powered instrumentation, legacy sensor-interface boards, industrial process-control front ends, automotive telemetry nodes (non-safety), and embedded data-acquisition modules communicating with a microcontroller through SPI-like serial ports. The part is widely used in educational lab kits and in replacement designs where the original manufacturer-supplied SAR ADC has been discontinued. When designing with this device, engineers should observe the datasheet's decoupling guidance (a 0.1 µF bypass close to the supply pin) and confirm that the host microcontroller's SPI mode and clock polarity match the ADC0832's MICROWIRE timing. Input signals exceeding VDD + 0.3 V or below -0.3 V will forward-bias the input ESD diodes and may damage the part. This page combines distributor pricing, drop-in compatible alternatives, and practical design notes not always included on stock cross-reference sites.

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ADC0834BCN/NOPB

ADC0834BCN/NOPB - 8-Bit 4-Ch SAR ADC, Serial I/O | TI

The Texas Instruments ADC0834BCN/NOPB is an 8-bit successive-approximation analog-to-digital converter with 2 or 4 configurable analog input channels, packaged in a 14-pin PDIP through-hole form factor. It uses an NSC MICROWIRE-compatible serial interface and supports a sampling rate of 31 kSPS, operating from a single 4.5 V to 5.5 V supply with commercial 0C to 70C temperature range. A SAR (Successive Approximation Register) ADC is a type of data converter that resolves one bit per clock cycle by comparing the sampled input against an internal binary-weighted DAC. SAR converters occupy a middle ground between flash ADCs (fastest, lowest resolution) and sigma-delta ADCs (slowest, highest resolution), making them ideal for general-purpose 8-12 bit data acquisition where moderate speed and deterministic latency matter. The ADC0834 belongs to the broader category of precision data converters / signal-chain ICs and integrates a sample-and-hold, internal clock, and configurable analog multiplexer in a single through-hole IC. Key features include 8-bit resolution with +/-0.5 LSB linearity (typical), single-ended analog inputs, an on-chip clock that eliminates external timing components, and CMOS low-power construction. The serial data output simplifies board routing by reducing pin count and isolating noisy analog ground returns. The /NOPB suffix indicates a lead-free, RoHS-compliant finish. Typical applications include process control instrumentation, portable measurement equipment, remote data acquisition modules, and embedded microcontroller analog front ends. Designers value the part for its ease of serial integration with legacy microcontrollers that lack built-in ADCs. When designing with this device, ensure the reference voltage is stable and decoupled, and observe the t_CSD timing when changing the multiplexer channel. The 14-pin PDIP form factor suits legacy designs and prototype work but is being phased out in high-volume new designs in favor of SOIC alternatives. This page synthesizes distributor pricing, drop-in 14-pin PDIP alternatives, and practical design notes not found in the bare manufacturer datasheet.

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ADC0834CCWM

ADC0834CCWM - 8-Bit 4-Ch Serial I/O ADC, 14-SOIC | Texas Instruments

The Texas Instruments ADC0834CCWM (also marketed as ADC0834CCWM/NOPB) is an 8-bit successive-approximation analog-to-digital converter with a serial I/O interface and a 4-channel analog input multiplexer, housed in a 14-pin SOIC (0.295 in / 7.50 mm width) package. Per the manufacturer datasheet, the part runs on a single 5 V supply, draws 15 mW, and completes a conversion in 32 µs, yielding a sampling rate of approximately 31 kSPS. Total unadjusted error is specified at ±½ LSB (C-grade) or ±1 LSB, and the digital interface is compatible with NSC MICROWIRE plus standard TTL/MOS shift registers. A successive-approximation ADC (SAR ADC) is a class of data converter that determines the digital output one bit at a time using an internal DAC and comparator. The SAR architecture sits between flash converters (fastest, most expensive) and sigma-delta converters (highest resolution, lowest bandwidth). Multiplexed-input SAR ADCs like the ADC0834 family allow one conversion engine to serve multiple analog channels, which reduces cost and board area when several sensors must be digitized. The device belongs to the broader hierarchy: ADC → data converter → mixed-signal IC → semiconductor. Key features include differential or single-ended input modes selectable per channel, TTL/MOS-compatible serial data output that can be daisy-chained across multiple converters, and a separate analog/digital ground pin for noise isolation. The configurable input multiplexer supports 2- or 4-channel operation (the ADC0831 has 1 channel, the ADC0832 has 2, the ADC0834 has 4, and the ADC0838 has 8). The serial interface simplifies opto-isolation for remote-sensing applications. The ADC0834CCWM uses a switched-capacitor DAC ladder and an internal sample-and-hold architecture that acquires the input within the first three clock cycles after address loading. Differential reference operation is supported by tying the REF– pin to VCC/2, allowing bipolar or ratiometric measurements when paired with sensors such as strain gauges or thermocouples. The 32 µs conversion time is short enough for process-control loops and slow data-acquisition tasks. Typical applications include process-control remote digitizing, transducer interfacing, battery-powered instrumentation, and isolated serial data links. The wide supply tolerance and single 5 V rail also make it suitable for embedded microcontroller systems that need an extra ADC channel beyond the MCU's internal converter. When designing with this part, place 0.1 µF decoupling capacitors close to the VCC and digital-supply pins and separate analog and digital ground returns to a single star point. Note that the ADC0834 lacks an internal oscillator; the host MCU or CPLD must generate the I/O clock and chip-select sequence. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ADC0834CCWMX

ADC0834CCWMX - 8-Bit 4-Ch Serial I/O SAR ADC | Texas Instruments

The Texas Instruments ADC0834CCWMX is an 8-bit successive-approximation analog-to-digital converter with a 4-channel analog input multiplexer, serial data I/O, and differential voltage reference inputs, housed in a 14-pin SOIC (WM) wide-body package. It accepts ratiometric analog inputs (0V to VREF) and offers 8-bit resolution with successive-approximation conversion, supporting either 4 single-ended or 2 differential analog input channels selected by software. A SAR (Successive Approximation Register) ADC is a class of data converter that performs a binary search through internal DAC and comparator hardware to resolve an analog input voltage into a digital code in a fixed number of clock cycles. SAR ADCs sit in the broader hierarchy of analog-to-digital conversion architectures, between flash converters (fastest, lowest accuracy) and integrating/sigma-delta converters (slowest, highest accuracy). Because SAR ADCs deliver deterministic latency and low latency (typically under 1 conversion cycle), they are commonly used in multiplexed data-acquisition, industrial process control, and embedded instrumentation where multiple channels must be sampled sequentially without a pipeline delay. Key specifications include 8-bit resolution, a 4-input analog multiplexer (configurable as 2 differential pairs), serial I/O (compatible with TTL/MOS logic and SPI/QSPI/microwire-style controllers), a single +5V supply operation, and an on-chip shunt regulator that allows the device to operate with high-voltage supplies (via a current-limiting resistor on the V+ pin). The differential reference inputs (VREF+/VREF-) support ratiometric measurements, where the ADC output code scales directly with the reference amplitude. This makes the part well suited to bridge-sensor, thermistor-divider, and potentiometer-position measurements where the excitation source also serves as the reference. Internally, the ADC0834 uses a charge-redistribution DAC and a CMOS comparator to perform successive approximation. The serial I/O port uses a 4-wire connection (CS, CLK, DI, DO) and includes a serial data output that can be chained to multiple ADCs for multi-channel expansion. The device offers a continuous-conversion mode in addition to single-shot conversion and provides a zero-scale/full-scale operating range that does not require external trimming. Typical applications include portable data loggers, digital panel meters, remote data-acquisition front-ends, pen-tablet digitizers, process-control analog front-ends, and any 5V-system embedded design that needs to digitize 4 to 8 channels with low pin-count serial I/O. When designing with this part, ensure that the analog inputs remain within the common-mode range of the reference and that decoupling (typically 0.1uF ceramic close to V+ and VREF) is provided. The shunt regulator pin (V+) requires a series resistor when operating from supplies above 6V. Take care not to exceed the absolute-maximum analog input voltage (VCC + 0.3V) to avoid latch-up. The serial clock rate must stay below the converter's maximum to preserve conversion accuracy. This page synthesizes distributor pricing (as of 2026-10-12), drop-in package-compatible alternatives from TI's ADC083x family, and practical design notes that extend the information gain beyond the manufacturer datasheet alone.

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ADC08351CILQ/NOPB

ADC08351CILQ/NOPB - 8-Bit 42MSPS ADC, 24-WQFN | Texas Instruments

The Texas Instruments ADC08351CILQ/NOPB is an 8-bit, 42 MSPS analog-to-digital converter with a single analog input channel, housed in a 24-pin WQFN exposed-pad package (4x5 mm). It is part of TI's legacy National Semiconductor ADC08351 family, designed for low-power, low-cost, high-speed digitisation in space-constrained designs. According to the manufacturer datasheet, the part operates from a single +3V supply and requires minimal external components, including optional a.c. input coupling via on-chip biasing. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that samples continuous analog voltages and produces discrete multi-bit digital codes for downstream processors. The ADC08351 is a successive-approximation-register (SAR) style 8-bit converter with an internal sample-and-hold, positioned within the broader hierarchy of: ADC -> data converter -> signal-chain IC -> power management and signal-chain semiconductor. Its parallel digital interface and reference-free topology place it in the low-cost ADC category typically used in video, imaging, and digital communications front-ends. Key differentiating specifications include an 8-bit resolution, 42 MSPS sampling rate, 40 mW typical power dissipation, single +3V operation, parallel digital output interface, and a wide -40C to +85C industrial operating range. The exposed-pad WQFN-24 package (4x5 mm) provides low thermal resistance and small PCB footprint, enabling high-density designs. The internal input biasing allows a.c.-coupled analog signals without external coupling capacitors, reducing BOM cost. At the architecture level, the ADC08351 uses a flash-style or pipelined quantiser core with on-chip track-and-hold and an internal reference, achieving 40 mW dissipation at full 42 MSPS without requiring a driver amplifier on most inputs. Its simplified control interface (clock-only) is targeted at applications where a microcontroller or DSP cannot easily supply high-speed memory writes. Typical applications include video digitisation, digital still cameras, set-top box input capture, IF signal digitisation, and portable instrumentation. The combination of low cost, low power, and small package makes the ADC08351 well suited to high-volume consumer and industrial designs. When designing with this part, ensure the +3V supply is well decoupled near the exposed pad, route the parallel outputs with matched-length traces, and provide a solid ground plane beneath the exposed thermal pad to meet thermal and noise performance. This page consolidates verified distributor pricing, pin-compatible drop-in alternatives, and practical PCB design notes for the ADC08351CILQ/NOPB - synthesis not duplicated from the manufacturer datasheet.

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ADC0838BCV

ADC0838BCV - 8-Bit SAR ADC with 8-CH MUX | Texas Instruments

The Texas Instruments ADC0838BCV is an 8-bit successive-approximation-register (SAR) analog-to-digital converter with a configurable 4- or 8-channel analog input, a serial MICROWIRE-compatible I/O interface, and a 20-pin PLCC (J-lead) package measuring 9x9 mm. It converts at sample rates up to 31 kSPS, supports a single +5 V analog supply, and provides easy microprocessor or microcontroller interface through its synchronous serial data link. The device was originally released by National Semiconductor and is now manufactured under the Texas Instruments banner after TI absorbed NSC. An SAR ADC is a successive-approximation-register analog-to-digital converter, a subtype of the data-converter (ADC) category in the signal-chain/analog-IC hierarchy. Unlike integrating dual-slope or pipelined ADCs, SAR converters use a binary-search algorithm with an internal sample-and-hold and a precision DAC to determine each bit in N clock cycles. SAR ADCs are valued for low latency (one conversion in N cycles), moderate resolution (typically 8-18 bits), and zero pipeline delay, which makes them the workhorse choice for multiplexed data acquisition, sensor readout, and embedded control loops where deterministic per-channel timing is essential. Key features of the ADC0838BCV include 8-bit resolution, an integrated 8-channel analog multiplexer (configurable as 4 differential or 8 single-ended inputs), a separate analog and digital supply pin pair for noise isolation, and a chip-selectable MICROWIRE-compatible synchronous serial interface. The differential analog input structure allows rejection of common-mode noise in industrial environments, while the digital output is TTL/CMOS-compatible. The device offers low power operation suitable for battery-powered or remote sensor applications. The ADC0838BCV uses a charge-redistribution DAC and successive-approximation register built on a standard bipolar CMOS process. The 20-pin PLCC package provides robust through-hole-style lead robustness in a surface-mount footprint, making it easier to handle and inspect than fine-pitch QFN packages - useful in legacy designs, prototyping, and harsh-environment industrial equipment. Typical applications include multi-channel data-acquisition front-ends for industrial process control, transducer/thermistor/thermopile signal conditioning, portable instrumentation with battery-supply operation, multi-zone temperature monitoring, and embedded 8-bit sensor readouts for HVAC, appliance, and white-goods control boards. The integrated multiplexer makes it a strong fit when an MCU lacks an internal ADC or when more channels are needed than the MCU provides. When designing with the ADC0838BCV, route the analog and digital grounds as separate islands that meet at a single point near the AGND pin to avoid digital switching noise coupling into the analog input. Place the 0.1 uF analog supply decoupling capacitor as close as possible to the VCC pin, and keep analog input traces away from the serial clock and data lines. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet - combining technical specification, supply-chain insight, and engineering judgement in one place.

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ADC0838BCVX

ADC0838BCVX - 8-Bit SAR ADC, 8-Ch MUX, Serial I/O | Texas Instruments

The Texas Instruments ADC0838BCVX is an 8-bit successive-approximation analog-to-digital converter with a configurable 4- or 8-channel input multiplexer and a serial I/O interface, housed in a 20-pin PLCC (9x9 mm) package. The ADC0838BCVX accepts up to eight single-ended or four differential analog input channels and converts them to a digital word through a SAR architecture clocked from an external source. The serial data output is compatible with standard shift registers and microprocessors, allowing direct connection to SPI, Microwire, or generic shift-register-based controllers. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a type of ADC that uses a binary-search feedback loop against a precision DAC to converge on the input voltage in N clock cycles for an N-bit result. SAR ADCs are known for low latency, moderate accuracy, and excellent power efficiency compared to integrating or flash architectures, making them a workhorse in micro-controller-based data acquisition, sensor read-back, and instrumentation subsystems. Key features of the ADC0838BCVX include 8-bit resolution with no missing codes, a serial I/O that minimizes pin count relative to parallel-output ADCs, single 5V analog supply operation, and a versatile input multiplexer that supports both single-ended and pseudo-differential configurations. The device operates over the commercial 0C to +70C temperature range and uses successive approximation to balance conversion speed and power consumption in battery-aware designs. The SAR core clock runs from an external RC or system clock, allowing the conversion throughput to scale with the application’s needs. Because the digital interface is purely serial, the part competes favorably with parallel-output ADCs of similar resolution that consume more board area and microcontroller pins. The PLCC-20 package provides a through-hole-compatible socket footprint for legacy designs as well as surface mount compatibility. Typical applications include multi-channel sensor monitoring, digital panel meters, temperature and process instrumentation, portable data loggers, embedded system analog front-ends, and any application requiring a low-cost multiplexed ADC. The 8-channel MUX is particularly well-suited to reading several sensors with a single ADC channel, reducing component count and simplifying firmware. When designing with this device, place a 0.1 uF decoupling capacitor close to the supply pin and ensure the I/O CLOCK, /CS, and DO lines are kept short to preserve timing margins on the serial bus. The analog and digital grounds should be tied at a single star point to limit the converter’s reference noise. This page synthesizes distributor pricing, drop-in alternative candidates, and practical design notes not consolidated in the manufacturer datasheet, with the goal of accelerating selection during component shortages or redesign cycles.

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ADC0838CCN/NOPB

ADC0838CCN/NOPB - 8-Bit Serial I/O ADC w/ 8-Ch MUX | TI

The Texas Instruments ADC0838CCN/NOPB is an 8-bit successive approximation register (SAR) analog-to-digital converter with a serial I/O interface and a configurable 4- or 8-channel analog input multiplexer, housed in a 20-pin PDIP (through-hole) package. Per the manufacturer datasheet, it operates with both analog and digital supplies from 4.5 V to 6.3 V (typically 5 V), supports differential, pseudo-differential, or single-ended inputs, and reaches a maximum conversion rate of approximately 31 kSPS. The /NOPB suffix denotes a Pb-free (lead-free) finish with the standard DIP-20 footprint. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that resolves one bit per clock cycle using a binary-search algorithm against a precision DAC. SAR ADCs sit in the broader taxonomy of analog-to-digital converters -> data converters -> mixed-signal ICs -> semiconductor. They are valued for deterministic latency, low power, and ease of use in microcontroller-based systems where no dedicated high-speed ADC peripheral exists. Key features include an external reference voltage input (ratio-metric conversions supported), a separate analog and digital supply path for noise isolation, a 4- or 8-channel input MUX configurable via the serial interface, and a true differential comparator stage. The SPI-compatible serial data interface reduces MCU pin count and simplifies PCB routing compared to parallel-output ADCs of the same era. Typical applications include multi-channel sensor monitoring panels, industrial process instrumentation, panel meters, battery monitoring systems, hand-held test gear, and legacy embedded designs requiring drop-in replacement of the original ADC0838 die. The 20-pin PDIP package remains popular for through-hole prototyping, educational kits, and repair of older equipment. When designing with the ADC0838, ensure the analog and digital supplies are decoupled with 0.1 µF ceramics placed close to the VCC and V+ pins, and respect the maximum source impedance of the analog inputs (per the datasheet typical-application section). For new designs prefer the surface-mount ADC0838CCWM/NOPB (SOIC-20) variant.

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ADC0838CCV

ADC0838CCV - 8-Bit SAR ADC, 8-Ch MUX | Texas Instruments | 20-PLCC

The Texas Instruments ADC0838CCV is an 8-bit successive-approximation analog-to-digital converter with a serial I/O and a configurable input multiplexer supporting up to 8 single-ended or 4 differential analog channels. It accepts a 5 V nominal supply and provides a 31 kSPS maximum sampling rate through an NSC MICROWIRE-compatible serial interface in a 20-pin PLCC (J-Lead, 9x9 mm) package. The converter combines a precision SAR core, a sample/hold front-end, and an on-chip clock generator so no external conversion clock is required. Background: A successive-approximation-register (SAR) ADC is a type of Nyquist-rate data converter that resolves one bit per internal clock cycle using a binary-search algorithm against an internal precision DAC. SAR ADCs sit inside the broader analog-to-digital converter family, alongside flash, sigma-delta, and pipeline architectures, and they are widely used in data acquisition, instrumentation, and process control where low latency and deterministic conversion are required. Compared with integrating converters, SAR parts achieve higher sample rates at the cost of higher power and a more demanding front-end drive amplifier. The "8-Bit" label designates the converter's binary resolution of 2^8 = 256 codes. Key features of the ADC0838CCV include 8 analog input channels, differential or single-ended software-configurable modes, a separate analog and digital supply pair for noise isolation, on-chip track-and-hold, and zero external component count apart from decoupling. The serial MICROWIRE interface simplifies opto-isolation and saves PCB pins versus parallel-output 8-bit ADC ICs of the same era. Operating temperature is specified at 0 °C to 70 °C, confirming this part as the commercial-grade CCV variant rather than the industrial or military-screened versions. Technical depth: the SAR core uses an internal capacitive charge-redistribution DAC and a chopper-stabilized comparator, allowing the device to maintain monotonicity and low differential non-linearity (DNL) over the full input range. The 8-channel analog multiplexer is addressable through the serial port and supports either single-ended (8 channels) or differential (4 channels) operation under software control. Because conversion and acquisition are clocked from an internal oscillator, the digital host only has to manage CS and the serial clock, leaving the conversion timing entirely deterministic on the chip. Typical applications include multi-channel data acquisition front-ends, rack-mounted industrial sensor panels, thermocouple and process-variable scanners, battery-cell voltage monitoring with serial isolation, and legacy retrofit boards that previously used discrete parallel-output ADC chips with external address decoders. The wide single-supply 5 V operation also makes it useful for automotive-style 12 V board rails after pre-regulation. When designing with this device, observe that the part is shipped in leaded PLCC (J-Lead) form, which requires through-hole-style PLCC sockets or reflow on PLCC land patterns. Provide adequate 100 nF + 10 µF decoupling at both VCC and VREF pins, and ensure the analog inputs settle within the acquisition window specified by the manufacturer. This page synthesizes distributor stock, drop-in 20-pin PLCC alternatives, and applied design guidance that is not gathered in a single place in the original manufacturer datasheet.

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ADC0844CCN/NOPB

ADC0844CCN/NOPB - 8-Bit 4-Ch SAR ADC, 25ksps, 20-PDIP | TI

The Texas Instruments ADC0844CCN/NOPB is a CMOS 8-bit successive approximation register (SAR) analog-to-digital converter with a 4-channel analog input multiplexer, packaged in a 20-pin PDIP (N) through-hole package. It converts single-ended, differential, or pseudo-differential analog signals to a parallel digital output at up to 25 ksps, drawing from a single +4.5V to +6.0V analog supply. An SAR ADC is a type of data converter that uses a binary search algorithm implemented with a capacitive DAC and a comparator to resolve one bit per clock cycle. SAR converters offer deterministic latency, low power, and excellent DC accuracy for moderate-speed precision measurements. ADC0844 sits within the data-converter IC family in the broader signal-chain hierarchy of analog->conditioning->conversion->processor, and bridges real-world sensors to microprocessors or microcontrollers. Key features of the ADC0844 include 4 software-configurable analog input channels, an on-chip track-and-hold, ratiometric conversion that eliminates the need for an external precision reference, a microprocessor-compatible parallel interface with chip-select and read/write controls, and a maximum ±0.39% (1 LSB) linearity error. The 4/8-channel multiplexer can be set up as single-ended, differential, or pseudo-differential inputs without external signal conditioning. The device's architecture uses a successive approximation register with an internal 256R resistor ladder. The reference input can be tied to the analog supply for direct ratiometric transducer measurements (potentiometers, strain gauges, thermistors) or to a precision external reference for absolute accuracy. The /CS, /RD, /WR, and /INT control the conversion sequence and allow easy interface to most 8-bit microprocessors. Typical applications include process-control instrumentation, portable data loggers, multi-channel sensor front-ends, panel meters, and embedded measurement boards. Its parallel bus and 4-channel mux make it a natural fit for legacy 8051/PIC/HC11 designs that need multi-channel analog without an external analog MUX. When designing with this part, observe proper PCB layout: keep analog and digital grounds separated and joined at a single point near the ADC ground pin. Add a 0.01uF bypass capacitor close to the VCC pin and a 0.1uF capacitor near the reference input to minimize digital switching noise coupling into the conversion result.

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ADC0848BCN/NOPB

ADC0848BCN/NOPB - 8-Bit 8-Ch 25kSPS Parallel ADC | TI

The Texas Instruments ADC0848BCN/NOPB is an 8-bit, 8-channel successive approximation register (SAR) analog-to-digital converter with 25 kSPS sample rate and a parallel microprocessor-compatible interface, housed in a 24-pin PDIP through-hole package. The device integrates an 8-channel analog input multiplexer that supports single-ended, differential, and pseudo-differential configurations, making it suitable for multi-sensor data-acquisition boards. The /NOPB suffix indicates a lead-free (Pb-free) terminal finish for RoHS-compliant manufacturing. An ADC (analog-to-digital converter) is a data-conversion integrated circuit that samples continuous analog voltage signals and produces discrete binary codes representing each sample. Successive-approximation (SAR) ADCs use a binary-search algorithm controlled by an internal DAC to converge on the input voltage in N clock cycles for an N-bit result, trading speed for high accuracy at low power. The ADC0848 family fits within the broader data converter hierarchy of mixed-signal ICs that bridge analog sensors and digital processors. Key features include 8 analog input channels (1 channel for the ADC0844 sibling), software-configurable single-ended or differential modes, an on-chip sample-and-hold, and TTL-compatible digital inputs and outputs. The ADC0848BCN variant offers improved linearity, while the ADC0848CCN variant offers tighter linearity over commercial temperature. Internal reference and clock options simplify external component count. The architecture pairs a CMOS SAR core with an input analog multiplexer and a digital interface compatible with 8080-type microprocessor buses, allowing direct connection to popular microcontrollers without glue logic. Differential input operation provides common-mode noise rejection in industrial environments, while single-ended mode maximizes channel count. Typical applications include process-control instrumentation, battery monitoring systems, multi-loop industrial controls, panel-meter designs, and embedded sensor-interface boards. The through-hole PDIP package simplifies prototype and hobbyist assembly compared to modern surface-mount parts. When designing, ensure VREF stability (typically 5V) and provide adequate decoupling at AVDD and DVDD. The ADC0848 supports ratiometric conversion: tying VREF to the sensor excitation voltage cancels excitation drift in bridge and potentiometer measurements. This page synthesizes distributor pricing, drop-in alternatives, and practical design considerations not found in the manufacturer datasheet.

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ADC0848BCVX

ADC0848BCVX - 8-Bit 8-Ch Microprocessor-Compatible ADC | TI

The Texas Instruments ADC0848BCVX is an 8-bit, 8-channel successive approximation analog-to-digital converter (SAR ADC) with a versatile analog input multiplexer, packaged in a 28-pin PLCC (FN) J-lead surface-mount package. It operates over a -40C to +85C industrial temperature range, supports a sampling rate of approximately 25-33 kSPS, and provides a maximum conversion time of about 60 microseconds per channel. The ADC0848BCVX is part of the ADC0844/ADC0848 family originally introduced by National Semiconductor and now maintained by Texas Instruments. A successive-approximation ADC (SAR ADC) is a type of data converter that determines each bit of the digital output by binary-searching the analog input against an internal DAC and comparator. SAR ADCs sit in the broader hierarchy: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. The ADC0848 family occupies the classic 8-bit, low-speed, multi-channel data-acquisition niche, offering deterministic latency and ease of microprocessor interfacing that pipelined and delta-sigma ADCs typically sacrifice. Key features include software-configurable single-ended, differential, or pseudo-differential input modes, an on-chip sample-and-hold, ratiometric or absolute voltage reference operation, and a microprocessor-compatible parallel interface with read/write control lines. The 28-PLCC (FN) J-lead package is a plastic-leaded chip carrier that provides easy prototyping and socket compatibility while exposing enough thermal pad area for the modest dissipation of this CMOS device. The ADC0848 uses a switched-capacitor successive-approximation architecture built on a CMOS process, which keeps power consumption low (typically well under 10 mW) and eliminates the need for an external negative supply. The differential input mode enables common-mode noise rejection in industrial environments where long sensor runs pick up 50/60 Hz interference, while pseudo-differential mode simplifies PCB layout for ground-referenced sensors. Typical applications include industrial process-control analog front-ends, multi-channel sensor multiplexing in factory automation, panel-meter and instrumentation data acquisition, portable battery-powered measurement devices, and legacy microprocessor-based embedded systems where deterministic conversion timing is required. The 8-channel mux eliminates external analog switches in most designs. When designing with this part, ensure the reference pin is driven from a low-impedance source (datasheet requires >=1.1 kOhm drive capability) and place 0.1 uF decoupling close to the supply pins. For ratiometric operation, use the same excitation voltage for the sensor bridge and the VREF pin to cancel reference drift.

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ADC0848CCVX

ADC0848CCVX - 8-Bit, 8-Ch, 25kS/s µP-Compatible SAR ADC | Texas Instruments

The Texas Instruments ADC0848CCVX is a CMOS 8-bit successive-approximation analog-to-digital converter with an 8-channel analog input multiplexer, housed in a 28-pin PLCC (11.51 x 11.51 mm) package. It performs conversions at up to approximately 25 kS/s with a single +5 V supply and provides a parallel microprocessor interface that maps directly onto most 8-bit data buses. An ADC (analog-to-digital converter) of the successive-approximation register (SAR) type performs a binary-search conversion against an internal capacitor array and an external reference, settling in a fixed number of clock cycles regardless of the input value. The 8-channel input multiplexer can be software-configured for single-ended, differential, or pseudo-differential operation, allowing the part to replace many discrete signal-conditioning paths in mixed-signal systems. The ADC0848 family occupies a tier of low-to-medium-speed, multi-channel data-acquisition building blocks between simple delta-sigma sensors and higher-throughput pipelined ADCs, and it is a member of the broader class of power-management-adjacent data-conversion ICs in the mixed-signal/Power Management/Analog category hierarchy. Key features include 8 input channels software-selectable as either 8 single-ended or 4 differential pairs (plus 2 pseudo-differential modes), an external reference input with a minimum input resistance of approximately 1.1 kΩ, an on-chip clock generator that can operate from an internal RC or external clock, and TTL/CMOS-compatible digital inputs and outputs. The differential mode provides common-mode rejection and pseudo-differential modes allow arbitrary input spans, which makes the part flexible across 0 to +5 V single-supply and bipolar sensor interfaces. The architecture uses a charge-redistribution SAR core with a built-in sample-and-hold and a successive-approximation register. Conversion is initiated by the WR-to-RD cycle on the parallel interface, and the result is latched onto the data bus. A separate VREF pin sets the full-scale range; in ratiometric systems the reference can be tied to the excitation of a bridge sensor so that supply variation cancels out, a hallmark of the SAR/multiplexer topology. Typical applications include process-control analog front ends reading 4-20 mA-derived voltages, multi-channel panel-meter and instrumentation data acquisition, portable or battery-powered data loggers, and embedded industrial sensor interfaces where an 8-bit microcontroller needs to digitize several transducer outputs without adding a complex sigma-delta part. Automotive and white-goods subsystems historically use this family for low-cost monitoring. When designing with this device, treat the reference input carefully: it must be driven by a low-impedance source capable of supplying the required reference current (the datasheet specifies a 1.1 kΩ minimum input resistance). Decouple VCC and VREF with local 0.1 µF ceramic capacitors, place the analog and digital grounds on a single star, and avoid driving the analog inputs beyond the rails. In noisy environments, average multiple conversions in firmware to extract the last 1-2 LSBs that an 8-bit SAR inherently leaves undecided. This page synthesizes distributor pricing, pinout details, drop-in alternatives, and practical design notes that are not consolidated in any single manufacturer or distributor listing.

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ADC084S021CIMM

ADC084S021CIMM - 8-Bit 4-Ch 50-200ksps SAR ADC | Texas Instruments

The Texas Instruments ADC084S021CIMM is a 4-channel, 8-bit successive-approximation-register (SAR) analog-to-digital converter with a high-speed serial interface, specified over a 50 ksps to 200 ksps sample-rate range, and housed in a 10-pin VSSOP package. The ADC084S021CIMM delivers low power consumption and four pseudo-differential input channels multiplexed into a single SAR core. Key specifications include an SPI/QSPI/MICROWIRE-compatible serial output, single 2.7 V to 5.25 V supply operation, and industrial -40C to +85C temperature range. An SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm to resolve each analog input into a digital code within N clock cycles for N bits of resolution. SAR ADCs sit in the broader hierarchy of ADC -> data converter -> signal chain IC -> semiconductor. Unlike delta-sigma ADCs, SAR converters provide deterministic latency and are favored for multiplexed multi-channel acquisition where low-latency, per-channel sampling is required. Key features of the ADC084S021CIMM include four single-ended input channels selectable via the serial interface, an external reference voltage input (no internal reference), 200 ksps maximum throughput across the full temperature range, and very low power draw at 50 ksps making it suitable for always-on sensing. The device is specified with no missing codes, an integral nonlinearity suitable for 8-bit instrumentation, and a track-and-hold front end capable of handling input frequencies well beyond Nyquist. The ADC084S021 uses a charge redistribution SAR architecture with a capacitive DAC. Each conversion takes 12 SCLK cycles plus one acquisition period. The serial interface shifts out four null bits followed by four 8-bit conversion results (MSB first), simplifying host MCU firmware. Power consumption is largely proportional to the sampling rate, allowing the device to scale nicely with system duty cycle. Typical applications for the ADC084S021CIMM include industrial process-control sensor monitoring, portable and battery-powered instrumentation, multi-zone temperature sensing, panel meters, and consumer appliance control. The wide analog input range relative to a 5V supply and the small VSSOP footprint also suit densely-populated control boards and HVAC interface modules. When designing with this part, place a 0.1 uF ceramic decoupling capacitor close to the AVDD pin and a bulk capacitor on the DVDD pin. Drive SCLK with a clean source to avoid jitter-induced INL errors. The reference voltage directly determines full-scale range, so use a low-noise, low-drift reference for best DC accuracy. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes - including reference and decoupling guidance - not found in the manufacturer datasheet alone.

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产品（32840)

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ADC0820CC/D - 8-Bit 1.5us Half-Flash ADC Die | Maxim Integrated

ADC0820CCN/PB - 8-Bit 667kSPS Flash ADC w/ Track-Hold | TI

ADC082S021CIMM - 8-Bit 200ksps 2-Ch SAR ADC | Texas Instruments

ADC082S101CIMM - 8-Bit 1Msps 2-Ch SAR ADC | 8-MSOP

ADC082S101CIMMX - 2-Ch 8-Bit 1MSPS SAR ADC | Texas Instruments

ADC0831CCN - 8-Bit Serial SAR ADC, 1-Ch | Texas Instruments

ADC0831CCWM - 8-Bit Serial I/O ADC, 1-Ch, SOIC-14 | TI

ADC0832CCN - 8-Bit 2-Ch SAR ADC, MICROWIRE Serial, 8-PDIP | TI

ADC0832CCWM - 8-Bit Serial I/O ADC w/ 2-Ch MUX | Texas Instruments

ADC0832CIWM/NOPB - 8-Bit Serial 2-Ch SAR ADC, 14-SOIC | Texas Instruments

ADC0834BCN/NOPB - 8-Bit 4-Ch SAR ADC, Serial I/O | TI

ADC0834CCWM - 8-Bit 4-Ch Serial I/O ADC, 14-SOIC | Texas Instruments

ADC0834CCWMX - 8-Bit 4-Ch Serial I/O SAR ADC | Texas Instruments

ADC08351CILQ/NOPB - 8-Bit 42MSPS ADC, 24-WQFN | Texas Instruments

ADC0838BCV - 8-Bit SAR ADC with 8-CH MUX | Texas Instruments

ADC0838BCVX - 8-Bit SAR ADC, 8-Ch MUX, Serial I/O | Texas Instruments

ADC0838CCN/NOPB - 8-Bit Serial I/O ADC w/ 8-Ch MUX | TI

ADC0838CCV - 8-Bit SAR ADC, 8-Ch MUX | Texas Instruments | 20-PLCC

ADC0844CCN/NOPB - 8-Bit 4-Ch SAR ADC, 25ksps, 20-PDIP | TI

ADC0848BCN/NOPB - 8-Bit 8-Ch 25kSPS Parallel ADC | TI

ADC0848BCVX - 8-Bit 8-Ch Microprocessor-Compatible ADC | TI

ADC0848CCVX - 8-Bit, 8-Ch, 25kS/s µP-Compatible SAR ADC | Texas Instruments

ADC084S021CIMM - 8-Bit 4-Ch 50-200ksps SAR ADC | Texas Instruments