ADC/DAC
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ADC101S021CIMFX - 10-Bit 200kSPS SAR ADC w/ SPI | Texas Instruments
The Texas Instruments ADC101S021CIMFX is a 10-bit, 200 kSPS, single-channel successive-approximation-register (SAR) analog-to-digital converter with a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, housed in a 6-pin SOT-23 (CIMF) package. It operates from a single +2.7 V to +5.25 V supply, draws 2.34 mW at 3.6 V and 8.9 mW at 5.25 V, and is fully specified over a sample-rate range of 50 to 200 ksps rather than only at a single fs. The SOT-23-6 footprint makes it one of the smallest pin-compatible SAR ADCs in TI's portfolio, ideal for space-constrained designs. A SAR ADC is a successive-approximation-register analog-to-digital converter: it performs one bit-trial per clock cycle using an internal binary-weighted capacitor DAC and comparator, producing deterministic latency of one conversion cycle. SAR ADCs sit under the broader hierarchy of analog-to-digital converter -> data converter -> mixed-signal IC -> semiconductor. Unlike delta-sigma ADCs, SAR converters offer no latency and excellent DC accuracy but typically lower resolution and speed than pipeline ADCs, making them ideal for multiplexed data-acquisition, instrumentation, and control loops. Key features include a straight-binary serial output, a three-wire serial interface compatible with SPI, QSPI, and MICROWIRE, a wide analog input range that can extend to the rails, low power consumption, and an operating temperature range of -40 C to +85 C. The CMOS process provides inherent low-power operation suitable for battery-powered and portable systems. The device uses a charge-redistribution SAR architecture with an internal sample-and-hold, providing genuine 10-bit performance with no missing codes over the full sample-rate range. The SOT-23-6 package is the same outline as a small-signal transistor, allowing direct placement near sensors in tightly packed designs. Typical applications include portable instrumentation, battery-powered data loggers, sensor signal conditioning, process control analog front ends, and consumer audio/video signal monitoring where compact size and SPI compatibility outweigh the need for higher speed or resolution. When designing, place a 0.1 uF decoupling capacitor as close as possible to the VDD pin, and ensure the SPI clock does not exceed the maximum specified serial-clock frequency. Use the /CS line to frame conversions and avoid bus contention. This page synthesizes distributor pricing from DigiKey and Mouser, drop-in and pin-compatible same-family alternatives (ADC101S051/ADC101S101), and practical design notes not consolidated in the manufacturer datasheet.
ADC101S021CISDX - 10-Bit 200kSPS 1-Ch SAR ADC SPI | TI
The Texas Instruments ADC101S021CISDX is a low-power, single-channel CMOS 10-bit successive-approximation-register (SAR) analog-to-digital converter with a high-speed serial interface, offered in a 6-pin WSON (2.2 mm x 2.5 mm) package with 200 kSPS sampling rate and SPI/QSPI/MICROWIRE-compatible digital output. An ADC (analog-to-digital converter) is an integrated circuit that samples continuous analog voltages and produces discrete digital codes proportional to the input. SAR ADCs use a binary-search successive-approximation algorithm that delivers deterministic latency, no pipeline delay, and excellent DC accuracy at moderate sample rates, making them a dominant topology in the broader data-converter hierarchy of analog-to-digital converter -> ADC -> data converter -> signal chain IC -> semiconductor. Key features of the ADC101S021CISDX include a single-ended analog input with input range of 0 V to VDD (where VDD is the supply), guaranteed 50 kSPS to 200 kSPS operation, straight-binary serial output, and typical power consumption of 2.34 mW at 3.6 V and 8.9 mW at 5.25 V. The single-supply operation spans 2.7 V to 5.25 V, eliminating the need for a negative rail in low-power systems. An external SCLK governs the conversion clock, and a CS_n falling edge initiates each conversion, producing results over the next 16 SCLK cycles. The converter's architecture is a classic charge-redistribution SAR with an internal sample-and-hold and a high-speed comparator, followed by a digital correction engine that outputs 10-bit straight binary data MSB-first. Internal scaling and low-leakage design allow the device to maintain specified performance across the full 50-200 kSPS window, which is unusual in SAR ADCs that often guarantee accuracy only at a single maximum sample rate. Typical applications for the ADC101S021CISDX include portable battery-powered instrumentation, sensor signal conditioning, handheld meters, system monitoring in white goods and HVAC, industrial process control, and any design where a small-footprint, low-power, SPI-compatible 10-bit ADC is required. Its 6-WSON package is well suited to high-density PCB designs. A key design consideration is decoupling: place a 1 uF ceramic bypass capacitor close to the VDD pin and ensure the analog input is driven from a low-impedance source to avoid conversion errors. Designers should also confirm that SCLK remains inactive during conversion to prevent digital noise coupling into the analog front end. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selecting and validating the ADC101S021CISDX in new designs.
ADC101S051CIMF - 10-Bit 500kSPS 1-Ch SAR ADC | Texas Instruments
The Texas Instruments ADC101S051CIMF is a 10-bit, single-channel, low-power successive-approximation-register (SAR) analog-to-digital converter that delivers sample rates from 200 ksps to 500 ksps through a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, all housed in a space-efficient 6-pin SOT-23 (DBV) package. Headline parameters include 10-bit resolution, 200-500 ksps throughput, and a SOT-23-6 footprint, supplied from a single 2.7 V to 5.25 V rail. A SAR ADC is a type of analog-to-digital converter that performs a binary search through successive approximation to digitize an input voltage in N clock cycles for N-bit precision. SAR ADCs sit at the bottom of the converter hierarchy as a precision-sampling architecture, distinct from sigma-delta and pipeline ADCs. They excel at low-latency, single-shot conversions with deterministic acquisition behavior, no pipeline delay, and inherent simplicity, which makes them ubiquitous in micro-controller-attached sensor digitization, battery-powered instrumentation, and space-constrained embedded designs. Key features of the ADC101S051CIMF include its specified-over-range 200 ksps to 500 ksps sampling window, a low power consumption of approximately 2.7 mW at 3.6 V and 500 ksps, an external reference input for ratiometric or fixed-voltage conversions, and true-differential pseudo-differential single-ended analog input. The wide supply range (2.7 V to 5.25 V) makes the part compatible with both 3.3 V and 5 V microcontroller systems, eliminating level shifters in many designs. The SOT-23-6 package measures roughly 2.9 mm by 1.6 mm, enabling placement adjacent to a sensor or potentiometer with minimum trace length. The ADC101S051 uses a charge-redistribution DAC array driven by an internal clock, providing deterministic behavior independent of the SPI clock, which simplifies system timing. The device accepts an external reference voltage (VA / VREF) up to the supply rail and converts the difference between the analog input (CH1, pin 6) and the common-mode input (CH0, pin 5) typically tied to mid-supply. Output data are presented MSB-first over the DOUT pin in standard SPI mode 0/3. Typical applications include portable battery-powered sensor signal chains, industrial process-control analog front ends, handheld test instruments, consumer audio front-end level metering, microcontroller-based data acquisition boards, and motor control feedback loops. The low pin count and small package make it ideal for retrofitting legacy designs that require a precision channel. When designing with the ADC101S051, place the reference bypass capacitor (1 µF) as close as possible to pin 1 (VA) and provide a clean analog ground. Note that this non-NOPB part is non-RoHS; for new RoHS-compliant designs use the ADC101S051CIMF/NOPB which shares the same die and pinout. This page synthesizes distributor pricing, pin-compatible alternatives including the active RoHS NOPB variant, and practical layout guidance not found in the manufacturer datasheet alone.
ADC101S051CISD - 10-Bit 500ksps SAR ADC, SPI/QSPI | TI
The Texas Instruments ADC101S051CISD is a 10-bit, 500 ksps, single-channel successive-approximation-register (SAR) analog-to-digital converter with a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, housed in a 6-pin WSON package (also referenced as SOT-23-style 6-pin HVSON) supplied on tape-and-reel. It accepts a single analog input on a 2.7V-5.25V supply and digitizes it at sample rates from 200 ksps to 500 ksps, with the SCLK frequency window of 4 MHz to 10 MHz and straight-binary serial output. A SAR ADC is a successive-approximation analog-to-digital converter: it converts an input voltage to a digital code by performing a binary search against an internal DAC, one bit per clock cycle. SAR ADCs offer deterministic latency, no pipeline delay, and excellent DC accuracy for a given resolution - they sit in the hierarchy analog-to-digital converter -> data converter -> signal chain IC -> semiconductor, and dominate low-to-medium speed precision applications where the sample-hold behavior must be repeatable per conversion. Key specifications of the ADC101S051CISD include 10-bit resolution, an input voltage range from 0V to VA, ±1 LSB INL (max), ±1 LSB DNL (max) with no missing codes, a single 2.7V-5.25V supply, two power-down modes (full power-down <1 uA, partial power-down ~600 uA at 5V), and typical power consumption of 2.7 mW at 3.6V and 9.7 mW at 5.25V. The -40°C to +85°C industrial operating range supports distributed industrial-sensor deployments. The device combines an input sample-and-hold, the SAR core, an internal reference, and a serial output stage in one compact 6-pin package. Because the reference is internal, BOM cost and PCB area drop versus external-reference SAR ADCs of comparable speed, making the part attractive for space-constrained designs that still need 50 ksps-class or 500 ksps-class conversions with a fast serial interface. Typical applications include industrial process-control modules, portable battery-powered instrumentation, sensor digitizers (strain, pressure, temperature front-ends), consumer audio front-panel controls, and general-purpose data-acquisition boards where a microcontroller's SPI peripheral provides the clock and reads the conversion result. When designing with this ADC, place a 0.1 µF bypass capacitor as close as possible to the VA pin to keep digital switching noise off the analog reference; keep the analog input trace short and guarded, and route the SCLK and DOUT traces away from fast digital edges to preserve the converter's noise floor. This product page synthesizes the manufacturer's datasheet, distributor pricing tiers, drop-in alternatives in the same 6-pin WSON footprint, and practical layout notes not bundled in the datasheet.
ADC101S051CISDX - 10-Bit 500kSPS 1-Ch SAR ADC SPI | Texas Instruments
The Texas Instruments ADC101S051CISDX is a 10-bit, 500 kSPS, single-channel successive-approximation-register (SAR) analog-to-digital converter with an SPI-compatible serial interface, housed in a 6-pin WSON package (tape and reel). It operates from a single +2.7V to +5.25V supply, supports an input voltage range of 0V to 5.25V (with the input span tracking the supply), and draws 2.7 mW at 3.6V or 9.7 mW at 5.25V during normal conversions. A SAR ADC is a comparator-based converter that performs a binary search across an internal capacitor DAC during each conversion cycle. Unlike delta-sigma or pipeline ADCs, no latency is introduced between sampling and conversion results, making SAR architecture ideal for multiplexed data acquisition, motor control feedback loops, and any application requiring deterministic per-sample throughput. The ADC101S051 family is positioned in the data-converter hierarchy as: ADC -> SAR ADC -> single-channel low-power ADC -> precision mixed-signal IC. Key specifications include a sample rate that scales from 200 kSPS to 500 kSPS, straight-binary serial output compatible with SPI, QSPI, MICROWIRE, and common DSP serial interfaces, an industrial operating temperature range of -40C to +85C, and a 6-pin LLP/WSON footprint optimized for compact PCB layouts. The CISDX suffix denotes the 6-WSON package shipped on tape and reel. Typical applications include portable and battery-powered instrumentation, multi-channel sensor monitoring with external multiplexing, optical-module monitoring, motor-control current sensing, and consumer audio front ends where 10-bit resolution is sufficient. The wide supply range allows direct connection to 3.3V or 5V rails without level shifters. When designing with the ADC101S051CISDX, place 0.1uF decoupling capacitors as close as possible to the supply pin and keep the analog input trace short and guarded to avoid digital switching noise coupling into the sampled voltage. The SCLK frequency must be chosen so the full 16-cycle conversion completes before the next CS falling edge. This page synthesizes distributor pricing, drop-in alternatives, and design notes not available on a single DigiKey or Mouser product page, including cross-brand alternatives and parametric trade-offs that are useful when sourcing alternatives.
ADC101S051CISDX/NOPB - 10-Bit 500kSPS SAR ADC, SPI, 6-WSON | TI
The Texas Instruments ADC101S051CISDX/NOPB is a 10-bit, single-channel, successive-approximation-register (SAR) analog-to-digital converter with a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, sampling at 200 to 500 ksps across the supply range. Housed in a 6-lead WSON exposed-pad package on a tape-and-reel carrier, it operates from a single +2.7V to +5.25V supply, with typical power consumption of 2.7 mW at 3.6V and 9.7 mW at 5.25V. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a sampled-data ADC that converts an input voltage in N clock cycles by binary-searching against a precision DAC; it is the dominant architecture for precision 8- to 18-bit general-purpose conversion at sample rates up to a few MSPS because it combines low latency, low power, and zero-latency one-shot conversion. Within the broader signal-chain hierarchy, a SAR ADC sits between the analog front end (sensor, amplifier, filter) and the digital host (microcontroller, DSP, FPGA), bridging the real world and the embedded processor. Key features of the ADC101S051 include a straight-binary serial output compatible with SPI, QSPI, MICROWIRE, and many DSP serial ports; an industrial-grade operating temperature range of -40C to +85C; an integrated sample-and-hold; and a shutdown mode that drops supply current for battery-powered applications. The 6-pin WSON exposed pad provides a low thermal-resistance path to the PCB, helping the part stay within specification at full 500 ksps operation. Architecturally, the ADC101S051 uses a charge-redistribution DAC array and an internal oscillator, so no external clock is required beyond the serial interface SCLK. The wide 2.7V-5.25V supply range allows the part to be powered directly from a 3.3V or 5V rail without level shifters, simplifying designs in mixed-voltage systems. The input span is ratiometric to VDD, which simplifies gain calibration in single-supply applications. Typical applications include industrial process control and sensor digitisation, handheld and battery-powered instrumentation, portable medical monitors, optical-sensor modules, and general-purpose 10-bit data-acquisition front ends. Designers commonly pair it with low-cost microcontrollers for 4-20 mA loop converters, thermistor/bridge digitisation, or simple audio/voice-bandwidth sampling. When designing with this device, allocate a solid ground plane under the exposed pad to dissipate package heat and provide a low-impedance analog return. Drive the analog input from a low-impedance buffer (op-amp follower) with a 20-100 ohm series resistor to isolate the sample-and-hold kickback from sensitive upstream stages. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and design notes that extend beyond the manufacturer datasheet's typical-application schematic.
ADC101S101CIMFX - 10-bit 1MSPS SAR ADC SPI SOT-23-6 | TI
The Texas Instruments ADC101S101CIMFX is a 10-bit, 1 MSPS, single-channel successive-approximation-register (SAR) analog-to-digital converter with an SPI-compatible serial interface, offered in a 6-pin SOT-23 (LSSOP/Terminal Form: GULL WING) package. It operates from a single 2.7 V to 5.25 V supply, supports an input voltage range from 0 V to VDD, and is fully specified across sample rates from 500 ksps to 1 Msps. An SAR ADC (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 through successive bit trials, with one conversion bit finalized per clock cycle. SAR ADCs sit within the broader data converter hierarchy (ADC -> data converter -> signal chain IC -> mixed-signal semiconductor), offering an excellent balance of speed, accuracy, latency, and power consumption for mid-speed precision applications. Key features include 1 MSPS throughput, low power consumption (typical supply current below 1 mA at 1 Msps), a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, an industrial temperature range of -40 °C to +85 °C, and a true-differential/single-ended analog input with no pipeline delay. The 6-pin SOT-23 package makes it one of the smallest SAR ADCs available, ideal for space-constrained sensor and instrumentation designs. The converter is built on a CMOS SAR architecture with an internal track-and-hold, delivering deterministic latency and excellent DC accuracy. Its wide supply range allows direct interfacing to 3.3 V microcontrollers or 5 V systems, simplifying board-level design and reducing external component count. Typical applications include portable instrumentation, battery-powered sensor data acquisition, industrial process control, embedded system monitoring, and precision measurement front-ends. The compact SOT-23 footprint also suits handheld medical and consumer devices. When designing with the ADC101S101CIMFX, place a 0.1 µF decoupling capacitor as close as possible to the VDD pin and ensure the analog input source impedance is low (less than ~1 kΩ) to avoid conversion errors caused by the input sampling capacitor. A low-impedance reference such as a dedicated reference IC or a well-filtered supply rail is recommended for best linearity. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single, decision-ready reference.
ADC101S101CISD - 10-Bit 1MSPS SAR ADC, SPI, 6-WSON | Texas Instruments
The Texas Instruments ADC101S101CISD is a 10-bit, 1MSPS, single-channel successive-approximation analog-to-digital converter housed in a 6-pin WSON (NGF) package. It operates over a sample rate range of 0.5 to 1 MSPS with a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, making it well suited to space-constrained embedded designs. The wide analog input range (0V to VDD) and supply-referenced reference simplify external analog front-end design. A successive-approximation-register (SAR) ADC is a type of analog-to-digital converter that performs a binary search through internal capacitive DAC switching. SAR ADCs deliver deterministic latency, excellent linearity at moderate sample rates, and very low pipelining delay compared to delta-sigma or pipeline architectures. As a member of the data-converter IC family, the ADC101S101CISD belongs to the hierarchy of monolithic ADCs -> data converters -> signal chain ICs -> analog & mixed-signal semiconductors. Key features include 10-bit resolution (no missing codes), 1MSPS maximum sampling rate, single-ended analog input, and a serial SPI-compatible digital interface. The converter achieves low power consumption suitable for battery-powered instruments and is fully specified over -40C to +85C (industrial) operation. Its 6-WSON (2.2x2.5 mm) package occupies roughly 5.5 mm squared of PCB area, making it one of the smallest SAR ADCs in TI's catalog. The architecture uses an internal S/H front-end and a supply-referenced reference, eliminating the need for an external reference IC in many systems. Typical applications include portable data loggers, low-power sensor monitoring nodes, and compact industrial instrumentation modules. The device is specified across the full 500kSPS to 1MSPS range so engineers can trade throughput for power dissipation without changing the part. The simple SPI interface simplifies connection to virtually any microcontroller without requiring an external bus controller. When designing with this part, ensure the host MCU provides a clock rate within the device's supported range and that ground plane stitching keeps the noisy digital ground return separated from the analog input return. The NGF (WSON-6) package requires careful PCB land pattern design for reliable solder joint integrity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet, giving engineers a single source for sourcing and selecting this SAR ADC.
ADC101S101CISDX - 10-Bit 1MSPS SAR ADC, 6-WSON | Texas Instruments
The Texas Instruments ADC101S101CISDX is a 10-bit, single-channel, successive-approximation-register (SAR) analog-to-digital converter that digitizes analog inputs at sample rates from 500 kSPS to 1 MSPS. Housed in a compact 6-pin WSON (2.2 x 2.5 mm) package, it operates from a single 2.7 V to 5.25 V supply, drawing only 2.0 mW at 3 V and 10 mW at 5 V, making it well suited for battery-powered and portable systems. The device integrates a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, allowing direct connection to common microcontrollers, FPGAs, and DSPs. A SAR ADC (Successive-Approximation Register Analog-to-Digital Converter) is a type of ADC that uses a binary-search algorithm through an internal DAC and comparator to digitize an analog input one bit at a time per clock cycle. SAR ADCs are prized for low latency, deterministic conversion time, and excellent DC accuracy without the pipeline delay or switching-noise artifacts of higher-speed pipeline or delta-sigma architectures. Within the data-converter hierarchy, the ADC101S101 sits between general-purpose 8/10-bit SARs and higher-resolution 12/14-bit precision SARs. Key features of the ADC101S101 include a single-ended analog input range of 0 V to VDD, straight-binary serial output, an external serial clock up to 20 MHz, and an industrial-grade operating range of -40 °C to +85 °C. The CISDX suffix denotes the 6-WSON (also called LLP-6 / HVSON-6) tape-and-reel packaging variant, which offers an extremely small 2.2 x 2.5 mm footprint ideal for space-constrained PCB designs. The architecture is based on a charge-redistribution SAR core with an internal track-and-hold, sample-and-hold capacitor, and a synchronous serial output stage. Because the part performs a full conversion in 16 clock cycles, total conversion latency at 1 MSPS is only 16 clocks, and the part supports burst-mode sampling for sequential conversions. Typical applications include portable instrumentation, sensor-signal digitization, process control, and consumer audio front ends where 10-bit resolution at 1 MSPS is sufficient. The wide supply range also suits industrial 5 V and 3.3 V mixed-rail designs, and the small footprint makes it popular in dense data-acquisition PCBs. When designing with this ADC, ensure that the analog input source has low output impedance and that the reference decoupling capacitor is placed within 5 mm of the VDD pin. The SCLK input is tolerant of 5 V signals even when VDD is 3.3 V, simplifying level translation. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select the right part and avoid common pitfalls.
ADC101S101CISDX/NOPB - 10-Bit 1MSPS SAR ADC, 6-WSON | Texas Instruments
The Texas Instruments ADC101S101CISDX/NOPB is a 10-bit, single-channel, successive-approximation-register (SAR) analog-to-digital converter sampling at 0.5 to 1 MSPS, housed in a 6-pin WSON (2.2x2.5 mm) package with an exposed thermal pad. The -X suffix indicates the device ships on a 4500-unit Tape and Reel for high-volume assembly, while the /NOPB suffix confirms lead-free, Pb-free termination compliant with modern RoHS and No-PB assembly requirements. The converter operates from a single 2.7 V to 5.25 V supply across both analog (VDD) and digital (VA tied internally) rails, drawing only a few hundred microamps in normal operation. A SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm against an internal precision DAC to digitize an input voltage. Unlike delta-sigma ADCs, SAR converters deliver a single conversion per request with no latency pipeline, making them well-suited to multiplexed control loops and event-driven sampling. The SAR family sits under the broader hierarchy of Nyquist-rate data converters (SAR and pipeline ADCs), which in turn fall under the data-converter category of mixed-signal ICs in power and signal-chain systems. Key features include 10-bit resolution, true-differential or single-ended input (driven through VIN), SPI/QSPI/MICROWIRE/DSP-compatible serial interface (SCLK, DOUT, CS), an on-chip sample-and-hold that eliminates external buffer requirements, and a wide input range from 0 V to VDD. Industrial temperature grade of -40 C to +85 C enables deployment in factory and outdoor enclosures without derating. The internal architecture combines a charge-redistribution DAC, a high-bandwidth comparator, and a successive-approximation register clocked from SCLK. Because conversion is gated by SCLK rather than an internal oscillator, designers can synchronize acquisitions to a deterministic timer, simplifying isolation of noise from motors or switching regulators. The exposed pad lowers thermal resistance for continuous high-duty-cycle sampling. Typical applications include industrial process-control sensor read-out (thermocouple, RTD, strain-gauge bridges), portable instrumentation and battery-powered data loggers, motor-control current/voltage feedback, and consumer audio front-end or metering. The small 6-WSON footprint suits space-constrained designs where multiple ADC channels are needed on a single board. When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to the VDD pin and tie the exposed pad (pin 6 / DAP) to a clean analog ground. Drive CS low before each conversion, supply at least 16 SCLK cycles per conversion (14 for data plus 2 for the front-end settle), and ensure the source impedance seen by VIN is below a few hundred ohms to avoid gain errors. This page synthesizes distributor pricing, drop-in alternatives in the same 6-WSON footprint, and practical design notes that are not collected together in the manufacturer datasheet.
ADC102S021CIMMX - 10-Bit 2ch 200ksps SAR ADC | TI | 8-VSSOP
The Texas Instruments ADC102S021CIMMX is a 10-bit, 2-channel, successive-approximation-register (SAR) analog-to-digital converter housed in an 8-pin MSOP/VSSOP package, supporting a guaranteed sample-rate range of 50 ksps to 200 ksps over a single +2.7V to +5.25V supply. The serial interface is SPI/QSPI/MICROWIRE-compatible, and the part consumes only 1.94 mW from a 3V supply or 6.9 mW from a 5V supply, dropping to microampere levels in power-down mode. A SAR ADC is a precision converter that uses a binary-search algorithm across an internal capacitive DAC to digitize an input voltage one sample at a time, with deterministic latency and no pipeline delay. Within the broader IC taxonomy, the ADC102S021CIMMX belongs to successive-approximation ADCs -> data converters -> ADC/DAC -> signal-conditioning ICs -> analog semiconductors. The SAR topology makes this device well suited to multiplexed multi-channel systems and DSP front-ends where deterministic conversion timing simplifies interrupt-driven software design. Key differentiating features include two single-ended input channels multiplexed into the same 10-bit core, a high-speed serial output that frames the conversion result in a 16-bit stream (10 data bits plus control overhead), and a power-down pin reducing consumption to 0.12 µW at 3V or 0.47 µW at 5V for battery-aware designs. The wide 2.7V–5.25V supply range allows direct connection to both 3.3V microcontrollers and 5V legacy analog rails without level translation. Architecturally, the converter pairs an internal track-and-hold with a charge-redistribution SAR loop and an on-chip clock generator, eliminating the need for an external conversion clock. The internal reference is not included — the device requires an external reference voltage applied to the VREF pin — which lets the user optimize noise/spurious performance for the chosen analog signal range. Typical applications include multi-channel sensor signal acquisition in industrial control loops, optical-module monitor photodiode digitizing, battery-cell voltage and temperature monitoring in portable battery-powered systems, motor-control current and back-EMF sampling, and general-purpose precision data-acquisition front-ends in cost-sensitive consumer or industrial products. When designing with this part, place the external reference decoupling capacitor as close as possible to the VREF pin and route analog and digital grounds on a single star back to the converter GND pin to minimize code-dependent errors at low input levels. Note that the ADC102S021CIMMX is currently marked Obsolete at major distributors — the /NOPB variant and pin-compatible family members remain in volume production for new designs. This page consolidates distributor pricing, pin-compatible SAR ADC alternatives, and application-circuit guidance not always present on the manufacturer product page.
ADC102S051CIMM - 10-Bit 2-Ch 200-500 ksps SAR ADC | TI
The Texas Instruments ADC102S051CIMM is a 10-bit, 2-channel, successive-approximation-register (SAR) analog-to-digital converter with a high-speed serial interface, specified over a sample rate range of 200 ksps to 500 ksps. It is offered in an 8-pin VSSOP (also referenced as MSOP-8 / 8-TSSOP) package and operates from a single +2.7V to +5.25V supply. Per-channel throughput is selected through a dedicated CS/address scheme, and the device draws approximately 1.6 mW at 3V and 200 ksps. An SAR ADC is a type of data converter that uses a binary-search algorithm and a precision DAC inside a feedback loop to digitize an analog input in a fixed number of clock cycles, typically one conversion per N clocks for N bits. SAR ADCs are valued for their deterministic latency, lack of pipeline delay, and excellent DC linearity, making them well suited to multiplexed multi-channel systems, motor control, and instrumentation front ends. Within the broader data-converter hierarchy, SAR ADCs sit alongside delta-sigma, pipeline, and flash converters, each dominating a different resolution/speed trade-off. Key features of the ADC102S051 include a sample rate range of 200 ksps to 500 ksps, 2 analog input channels multiplexed into a single ADC, an SPI/QSPI/MICROWIRE-compatible serial data interface, straight-binary output coding, and an industrial operating temperature range of -40C to +85C. The 8-lead VSSOP footprint makes it one of the smallest SAR ADCs in its performance class, and its wide 2.7V-5.25V supply range allows direct connection to 3.3V or 5V microcontrollers without level shifting. Architecturally, the device uses a charge-redistribution DAC array combined with a low-noise comparator and on-chip sample-and-hold, controlled by an internal state machine. The high-speed serial interface transfers conversion results MSB-first, with a 16-clock frame that is compatible with common DSP/MCU serial ports. An external reference voltage (applied to VREF) sets the full-scale input range, giving designers flexibility in matching the LSB size to sensor or signal-chain scaling. Typical applications include multi-channel data acquisition front ends, process-control and industrial sensor monitoring, portable and battery-powered measurement equipment, motor control current/voltage sensing, and digital signal processor front ends. The wide supply range and low power make it equally suitable for 3.3V ARM Cortex-M based embedded designs and 5V legacy industrial controllers. When designing with this ADC, allocate a quiet analog ground plane, decouple AVDD with a 0.1uF ceramic placed close to the pin, and keep the VREF pin bypassed with at least 1uF of low-ESR capacitance. The SCLK clock must be clean and free of glitches to avoid spurious conversions; route SCLK and DOUT over a short, impedance-controlled path and avoid routing near switching nodes. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes not found on the manufacturer datasheet cover page.
ADC102S051CIMMX - 10-Bit 2-Ch 500ksps SAR ADC | Texas Instruments
Texas Instruments ADC102S051CIMMX is a 2-channel, 10-bit successive-approximation-register (SAR) analog-to-digital converter that samples at rates from 200 ksps up to 500 ksps, housed in an 8-pin MSOP-8 (also referred to as 8-VSSOP) surface-mount package with gull-wing leads. It integrates a true-differential input, a high-speed serial interface (SPI/QSPI/MICROWIRE/DSP-compatible), an internal reference, and an internal oscillator, delivering a complete data-acquisition channel for compact designs. A SAR ADC is a converter architecture that approaches the input voltage one bit at a time using a binary-weighted capacitor DAC and a comparator, then latches the 10-bit result in a single conversion clock. SAR converters inherit a class hierarchy of: SAR ADC -> Nyquist-rate data converter -> analog-to-digital converter -> data-conversion IC -> signal-chain semiconductor. Compared with pipeline or delta-sigma ADCs, SAR parts excel at single-shot latency (no pipeline delay) and deterministic throughput, which makes them preferred for multiplexed control loops and event-triggered sampling where phase and timing are critical. Key electrical specifications include a 2.7V to 5.25V single supply, ±1 LSB INL (max), ±1 LSB DNL (max) with no missing codes, a SINAD of 61.6 dB at 5V supply, and a power dissipation of approximately 1.6 mW at 3V / 200 ksps. The device operates over the -40C to +85C industrial temperature range and exhibits excellent AC performance with THD typically below -76 dB, making it suitable for instrumentation, sensor read-out, and consumer audio processing chains. The internal 2.5V reference and sample-and-hold are factory-trimmed; designers need only an input RC network and a 0.1 uF decoupling capacitor at AVDD. A flexible serial interface operates in modes 0 and 4 (CPOL=0, CPHA=0 / CPOL=0, CPHA=1, with /CS controlled by the master). Two fully-differential input channels are time-multiplexed through the same successive-approximation loop, simplifying front-end filtering. Typical applications include portable industrial telemetry, HVAC sensor digitization, optical-module monitoring, multi-cell battery management system (BMS) data acquisition, consumer audio front-ends, and single-board embedded controllers that already have an MCU or DSP needing analog read-back. The wide supply range lets the part share 3.3V rails with common microcontrollers without level translation. When laying out, place the 1uF AVDD bypass capacitor as close to the AVDD pin as possible and route analog/digital grounds back to a single point to avoid switching noise corrupting the conversion result. When selecting this part over the pin-compatible ADC104S051 (12-bit) or ADC122S051 (12-bit, 200 ksps), verify whether the application needs 10-bit or 12-bit resolution and whether the maximum sample rate of 500 ksps must be preserved.
ADC102S051CIMMX/NOPB - 10-Bit 2-Ch 500ksps SAR ADC | Texas Instruments
The Texas Instruments ADC102S051CIMMX/NOPB is a 10-bit, 2-channel, low-power successive-approximation-register (SAR) analog-to-digital converter with a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, housed in an 8-pin Mini-SOIC (VSSOP/MSOP) package. It supports a fully-specified sample-rate range of 200 ksps to 500 ksps, operates from a single +2.7V to +5.25V supply, and consumes 2.7 mW at 3V or 8.6 mW at 5V typical. An SAR ADC is a successive-approximation analog-to-digital converter that uses a binary-search algorithm against an internal precision DAC to digitize an analog input, one bit per clock cycle. SAR ADCs sit in the broader hierarchy of data converters (ADC -> Nyquist ADC -> SAR ADC -> mixed-signal IC -> semiconductor) and are valued for low latency, deterministic behavior, and excellent DC accuracy, making them the standard choice for multiplexed multi-channel data acquisition systems where small numbers of analog inputs must be digitized with predictable timing. Key features include two single-ended analog input channels with a multiplexer, an external reference input, a true differential input stage, and a straight-binary serial output that is SPI/QSPI/MICROWIRE/DSP-frame compatible. The device guarantees 10-bit no-missing-codes performance over the full sample-rate range, supports an industrial -40C to +85C operating range, and uses an external clock for the conversion process, enabling synchronization in multi-ADC systems. Typical applications include portable instrumentation, multi-channel data loggers, optical-module monitoring, point-of-load system monitoring, and embedded industrial control. Designers favor the ADC102S051 for systems that need more than one analog channel with deterministic latency, plus a serial interface that connects directly to microcontrollers and DSPs without glue logic. When laying out the PCB, place the 0.1uF decoupling capacitor as close as possible to the VDD pin and route the analog inputs as a differential pair (AIN+/AIN-) with a solid ground plane. Hold SCLK low during CS high to prevent spurious conversions and respect the tACQ and tCONV timing budgets in the manufacturer datasheet to retain full-throughput accuracy at 500 ksps. This page synthesizes distributor pricing, drop-in VSSOP-8 alternatives, and practical design guidance that complements the manufacturer datasheet, helping engineers shorten BOM validation and layout review cycles.
ADC102S101CIMM - 10-Bit 2-Ch 1Msps SAR ADC | Texas Instruments
The Texas Instruments ADC102S101CIMM is a 10-bit, 2-channel, 500 ksps-to-1 Msps successive-approximation-register (SAR) analog-to-digital converter housed in an 8-pin Mini-SOIC/MSOP (VSSOP) package. It operates from a single +2.7 V to +5.25 V supply and consumes only 3.9 mW at 3 V and 11.4 mW at 5 V, making it a low-power CMOS ADC with an SPI-/QSPI-/MICROWIRE-compatible serial interface. Per the TI product page, the converter is fully specified across a 500 ksps-to-1 Msps sample-rate span rather than at a single speed, simplifying design-in for variable-rate data-acquisition front ends. An ADC (analog-to-digital converter) is an integrated circuit that converts continuous analog voltages into discrete digital codes; SAR ADCs in particular use a binary-search algorithm against an internal DAC to resolve N bits in N clock cycles, combining low latency, deterministic conversion time, and excellent DC accuracy with no pipeline delay. Within the broader taxonomy, the ADC102S101 belongs to the precision-data-converter hierarchy: SAR ADC -> data converter -> signal-chain IC -> analog/mixed-signal semiconductor, sitting between slower integrating ADCs and higher-speed pipeline ADCs. Key specifications include 10-bit resolution, 2 single-ended analog input channels with an internal multiplexer, 1 Msps maximum sampling rate (fully specified down to 500 ksps), straight-binary serial data output, and an internal track-and-hold circuit. The wide 2.7 V-to-5.25 V supply range allows direct interface to 3.3 V or 5 V microcontrollers without level shifters, and the SPI-/QSPI-/MICROWIRE-compatible serial output drops straight into most modern MCUs and DSPs. The SAR architecture provides deterministic latency, low power consumption, and strong DC linearity, with an internal bandgap reference and oscillator on-chip. The 8-pin VSSOP footprint suits high-density PCB layouts, and the CMOS process enables low standby current for battery-powered or sleep-mode applications. Typical applications include portable instrumentation, industrial process control, sensor signal conditioning, factory-automation modules, and battery-powered data loggers. The wide supply range and low 3.9 mW at 3 V power budget make it especially attractive for handheld measurement devices. Designers should add a 0.1 microfarad bypass capacitor close to the supply pin and ensure the analog input stays within the common-mode range; the SPI clock should not exceed 10 MHz (max) to preserve conversion accuracy at full 1 Msps.
ADC102S101CIMMX - 10-Bit 1Msps 2-Ch SAR ADC | Texas Instruments
The Texas Instruments ADC102S101CIMMX is a 2-channel, 10-bit successive-approximation-register (SAR) analog-to-digital converter with a sample rate range of 500 ksps to 1 Msps, supplied in an 8-pin MSOP (also referenced as 8-VSSOP / MINI-SOIC / TSSOP-equivalent) surface-mount package. Operating from a single +2.7 V to +5.25 V supply, it draws 3.9 mW at 3 V and 11.4 mW at 5 V, making it one of the lowest-power dual-channel SAR ADCs in its speed class. A successive-approximation ADC is a type of data converter that performs a binary search through internal DAC switching to digitize an analog input one bit at a time per clock cycle. SAR ADCs are valued for their deterministic latency, lack of pipeline delay, and excellent DC accuracy, which is why they dominate precision industrial, instrumentation, and sensor-interface applications. Within the data-converter hierarchy, the ADC102S101 belongs to the SAR converter family, which sits under the broader categories of precision ADC -> ADC/DAC -> data-converter IC -> signal-chain semiconductor. Key specifications of the ADC102S101CIMMX include two single-ended analog input channels routed through an internal analog multiplexer, a high-speed SPI/QSPI/MICROWIRE-compatible serial output, ±1 LSB INL (typical) and ±1 LSB DNL (typical) at 10 bits, an analog input range of 0 V to VDD, and an operating temperature range of -40 °C to +85 °C (screening level: industrial). The reference voltage is taken from the supply pin (VDD), simplifying the external BOM to just decoupling capacitors. Power-down current is typically sub-microamp, supporting battery-powered duty-cycled designs. Architecture-wise, the device uses a charge-redistribution switched-capacitor DAC array combined with a precision comparator and SAR logic block. The track-and-hold front-end acquires the input in roughly 1.5 clock cycles, after which the conversion phase runs for 10 SAR clock cycles, yielding one conversion result every 16 SCLK cycles at full throughput. Typical applications for the ADC102S101CIMMX include multi-channel sensor monitoring in factory automation, temperature/pressure transducer digitizers, portable battery-powered instrumentation, simple data-logging front-ends, and general-purpose multi-channel analog monitoring in industrial control boards where low power and small PCB footprint are priorities. When designing with this part, ensure the analog input pins are driven from low-impedance sources and that VDD is heavily decoupled (typically 1 uF + 0.1 uF) close to the supply pin to prevent digital switching noise from corrupting conversion results. The SCLK input should be clean and free of ringing; a series-termination resistor close to the driving MCU pin is recommended for cables longer than a few centimeters. This page synthesizes distributor pricing (DigiKey, Mouser, Octopart), drop-in pin-compatible alternatives verified against TI's cross-reference tool, and practical design notes drawn from the manufacturer's datasheet typical-application section - content not consolidated on any single distributor page.
ADC102S101CIMMX/NOPB - 10-Bit 2-Channel 1Msps SAR ADC | TI
The Texas Instruments ADC102S101CIMMX/NOPB is a 10-bit, 2-channel, successive-approximation-register (SAR) analog-to-digital converter with sampling rates from 500 ksps to 1 Msps, packaged in an 8-pin MiniSOIC/VSSOP. The converter features an internal track-and-hold circuit and an SPI-/QSPI-/MICROWIRE-/DSP-compatible high-speed serial interface, making it suitable for embedded and industrial data-acquisition front ends. Operating from a single 2.7 V to 5.25 V supply, it draws 3.9 mW at 3 V and 11.4 mW at 5 V while delivering straight-binary serial output over the full industrial temperature range of -40 °C to +85 °C. A successive-approximation ADC is a sampled-data converter that uses a binary-search algorithm and an internal capacitive charge-redistribution DAC to digitize an analog input one bit per clock cycle. SAR ADCs deliver deterministic latency, no-pipeline delay, and excellent dynamic performance for multiplexed multi-channel systems, which is why they dominate industrial instrumentation, motor control, and precision-sensor front ends. The ADC102S101 places two single-ended input channels behind an internal 2-to-1 analog mux, allowing a single serial interface to serve two sensors with deterministic per-channel acquisition. Key features include 10-bit resolution, 1 Msps maximum throughput, single 2.7 V to 5.25 V analog supply, low power consumption, an external reference option, and a shutdown mode that reduces current to microampere levels. The high-speed serial interface is compatible with SPI, QSPI, MICROWIRE and many DSP serial ports, allowing direct connection to microcontrollers and DSPs without glue logic. An external reference pin lets designers trade noise and scale for their analog input range, while internal sequencing keep single-shot logic simple. The 8-lead VSSOP (also known as MiniSOIC or MSOP) footprint is one of the smallest 8-pin SAR ADC packages available, and the industrial -40 °C to +85 °C rating supports factory-floor deployment. Designers should ensure the analog and digital grounds are joined at a single point near the converter, and that the input bandwidth and source impedance obey the datasheet's acquisition-time equations to avoid codes-dependent distortion. Typical applications include portable battery-powered instrumentation, industrial process control and PLC analog front ends, automotive sensor signal conditioning (non-safety), optical-sensor modules, and consumer audio/sensor signal acquisition. Decoupling should follow the typical-application section of the datasheet, with a 1 µF plus 0.1 µF combination on the supply pin and short, symmetric analog-trace routing to both input channels.
ADC10464CIWM - 10-Bit 600ns 4-Input ADC with S/H | Texas Instruments
The Texas Instruments ADC10464CIWM is a 10-bit, 600 ns analog-to-digital converter with a 4-channel input multiplexer and an integrated sample-and-hold amplifier, housed in a 28-pin SOIC (Wide, WM) package. It supports a single 5V analog supply, performs four-channel multiplexed conversion at up to 800 ksamples per second, and dissipates a typical maximum of 235 mW. The part uses a patented multistep (subranging flash) conversion architecture that achieves sub-microsecond conversion times while keeping CMOS-class power consumption. An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts a real-world continuous analog voltage or current into a discrete digital code proportional to the input magnitude. ADCs sit within the broader data-converter hierarchy (ADC/DAC) under data acquisition and signal-chain functions. Multiplexed ADCs like the ADC10464 reduce system cost and board area by sharing one converter across multiple analog sources, with internal channel-selection logic and a front-end sample/hold that stabilizes dynamic inputs during conversion. Multistep architectures split the conversion into coarse and fine flash stages to balance speed, die size, and power. Key features of the ADC10464CIWM include four analog inputs selected by channel address pins, an integrated track-and-hold, ±0.5 LSB differential nonlinearity (DNL), ±1 LSB integral nonlinearity (INL), a parallel digital output bus, and an external reference input. The device includes a track/hold acquisition time consistent with the 600 ns conversion budget, supports ratiometric operation, and provides TTL/CMOS-compatible logic interfaces. The wide-body SOIC package eases probing and rework on legacy through-hole-style layouts. The multistep conversion architecture employs two internal flash stages that refine a coarse estimate with a fine flash sub-conversion, reducing comparators versus a true flash design while still delivering sub-microsecond settling. This makes the ADC10464CIWM a strong fit when faster-than-successive-approximation (SAR) speed is required but full-flash power dissipation is unacceptable. The integrated track/hold front-end allows accurate acquisition of fast multiplexed signals without an external buffer. Typical applications include multi-channel data-acquisition systems, industrial process control front ends, instrumentation and metering, sonar/signal-conditioning boards, and legacy 5V-only embedded platforms. The four input channels suit sensor arrays (temperature, pressure, strain) where many physical inputs share a single conversion pipeline. When designing with this ADC, choose a low-impedance input buffer per channel to drive the switched-capacitor sample/hold input, place decoupling close to AVDD/DVDD pins, and isolate the digital output bus from sensitive analog traces. Use a clean, low-noise external reference (or ratiometric supply) to preserve INL/DNL performance. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers shorten the part-selection and verification cycle.
ADC10464CIWMX/NOPB - 10-Bit 4-Ch 600ns ADC w/ MUX | Texas Instruments
The Texas Instruments ADC10464CIWMX/NOPB is a 10-bit, 4-channel CMOS analog-to-digital converter with input multiplexer and sample/hold, providing up to 800 ksps conversion in a 28-pin SOIC wide-body package. It operates from a single +5V analog supply, supports an external or internal reference of 5V nominal, and uses a parallel digital interface for high-throughput data transfer. According to the manufacturer datasheet, the device dissipates a maximum of 235 mW at full conversion rate. What is an SAR ADC with input multiplexer? Successive-Approximation Register (SAR) ADCs combine a capacitive DAC, comparator, and successive-approximation register to digitize an analog input in N clock cycles for N-bit resolution. The integrated multiplexer allows a single ADC core to scan multiple analog channels sequentially, reducing PCB area and BOM cost in multi-sensor systems such as data acquisition boards, motor control feedback, and instrumentation front-ends. The ADC10464CIWMX/NOPB distinguishes itself with a patented multistep (half-flash) conversion architecture that achieves 600 ns conversion time while drawing less than 235 mW total power, eliminating the need for external track/hold circuitry in many applications. Four single-ended input channels are selected via the MUX address pins, and a dedicated sample/hold capacitor maintains input signal integrity during the conversion window. The parallel output bus is TTL/CMOS compatible, allowing direct connection to microcontrollers, DSPs, or FPGAs. Typical applications include multi-channel data acquisition systems, process control front-ends, portable instrumentation, industrial monitoring, motor control current/voltage sensing, and medical diagnostic equipment. A wide -40 °C to +85 °C operating range and the /NOPB lead-free finish make it suitable for industrial-grade designs requiring RoHS compliance. When designing with this ADC, place the 5V analog decoupling (10 µF tantalum in parallel with 0.1 µF ceramic) within 5 mm of the AVDD pin to reject switching noise. Route the four MUX inputs with matched impedance and a common-mode choke if the source is in a noisy environment. The internal reference can be bypassed with an external 5V reference for tight absolute-accuracy applications. The /NOPB suffix confirms Pb-free matte-tin lead finish per TI's directive. This page synthesizes real-time distributor pricing, parametric drop-in alternatives, and PCB layout guidance not found in the manufacturer datasheet alone, giving engineers an actionable procurement and design reference for new designs and legacy system maintenance.
ADC104S021CIMMX - 10-Bit 200kSPS 4-Ch SAR ADC | TI
The Texas Instruments ADC104S021CIMMX is a 10-bit, 4-channel, successive-approximation-register (SAR) analog-to-digital converter with a high-speed serial interface, sampling at up to 200 kSPS per channel. Housed in a 10-pin MSOP/VSSOP (DGS) package and specified over the -40C to +85C industrial range, the part draws 1.94 mW from a 3V supply or 6.9 mW from a 5V supply, making it one of the lowest-power quad-channel SAR ADCs in its class. A SAR ADC is a type of data converter that uses a binary-search algorithm and an internal capacitive DAC to digitize an analog input in N successive approximation steps (one per output bit). SAR ADCs sit in the data-converter hierarchy below pipelined and delta-sigma ADCs, and are preferred for multi-channel multiplexed systems that need deterministic latency, small latency variation between channels, and true simultaneous-track-and-hold behavior across the input mux. Key specifications include 4 single-ended input channels selected by an internal sequencer, a sample-rate range of 50 kSPS to 200 kSPS, and an analog supply range of +2.7V to +5.25V. The serial output data is straight binary and is compatible with SPI, QSPI, MICROWIRE, and most common DSP serial interfaces, requiring only three digital lines (CS, SCLK, DOUT). The architecture combines a 4-to-1 analog input mux, a low-impedance sample-and-hold, the SAR engine, and an internal reference path that operates directly from VA without needing an external reference. Power-down modes reduce dissipation to microamp levels between conversions, which is critical for battery-powered and power-cycled sensor nodes. Typical applications include portable multi-sensor data loggers, industrial process-control front-ends, optical-module monitor inputs (temperature/laser-bias monitoring in QSFP/SFP transceivers), motor-control feedback rails, and consumer handheld instruments. The wide 2.7V-5.25V supply tolerance lets a single ADC directly digitize both 3.3V and 5V sensor outputs without level translation. When designing with this ADC, keep analog and digital grounds joined at a single star point near the AGND pin and decouple VA with a 1 uF ceramic plus a 0.1 uF X7R placed within 5 mm of the supply pin; SCLK must be clean and free of ringing, and CS must not remain low indefinitely. This page synthesizes distributor stock/price data, drop-in alternatives in the same MSOP-10 footprint, and practical design notes not found in the standalone datasheet to help engineers select, source, and lay out the ADC104S021CIMMX in production BOMs.
ADC104S051CIMM - 10-Bit 4-Ch 200-500ksps SAR ADC | Texas Instruments
The Texas Instruments ADC104S051CIMM is a 10-bit, 4-channel, 200 ksps to 500 ksps successive-approximation analog-to-digital converter (SAR ADC) housed in a 10-pin VSSOP (DGS) package, delivering low-power multi-channel conversion for space-constrained embedded designs. A SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm against an internal DAC to digitize an input voltage in N clock cycles for N bits of resolution. SAR ADCs sit in the broader hierarchy of data converter -> ADC -> successive-approximation ADC -> precision converter, and are preferred over flash ADCs for their low power, small die area, and ability to deliver 8 to 18 bits of resolution at hundreds of kiloseconds per second. Key features include a single analog supply from 2.7 V to 5.25 V, a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, four single-ended analog input channels multiplexed into the SAR core, and typical power consumption of 2.7 mW at 3 V and 8.6 mW at 5 V. The output data is straight binary, framing each conversion with a 16-bit serial word so that the channel ID is embedded in the upper bits and the 10-bit conversion result is right-aligned. The architecture uses a charge-redistribution DAC array with sample-and-hold on each conversion, producing 10-bit linearity and low-latency deterministic behavior ideal for multiplexed sensor scanning. Industrial-grade temperature range is -40 C to +85 C, and the small VSSOP-10 footprint allows placement next to analog sensor headers on two-layer and four-layer boards. Typical applications include industrial process control, portable instrumentation, battery-powered data loggers, optical sensor monitoring, and consumer multichannel data acquisition. The wide 2.7 V to 5.25 V supply range means a single ADC104S051CIMM can be powered from a 3.3 V microcontroller rail, a 5 V analog rail, or directly from a Li-ion battery stack through a small LDO. When designing with this device, place a 0.1 uF decoupling capacitor within 3 mm of the AVDD pin and keep analog input traces short and guarded to minimize crosstalk between the four channels. The 16-bit serial frame and standard SPI mode 0/3 timing let it interface directly to nearly any microcontroller or DSP without glue logic. This page synthesizes distributor pricing, same-family and cross-brand drop-in alternatives, and practical design notes that are not collected in the manufacturer datasheet, giving engineers a single reference for part selection, footprint reuse, and BOM risk reduction.
ADC104S101CIMM - 10-Bit 4-Ch 1Msps SAR ADC VSSOP-10 | TI
The Texas Instruments ADC104S101CIMM is a 4-channel, 10-bit successive-approximation-register (SAR) analog-to-digital converter that operates over a sample rate range of 500 ksps to 1 Msps, packaged in a 10-pin VSSOP (DGS) surface-mount housing. The device features a high-speed serial (SPI/QSPI/MICROWIRE/DSP-compatible) interface, single analog supply operation from 2.7 V to 5.25 V, and typical power consumption of 3.9 mW at 3 V or 11.4 mW at 5 V, with four single-ended analog input channels selected via the serial interface. A successive-approximation-register ADC is a class of Nyquist-rate data converter that uses a binary-search algorithm against an internal precision DAC to resolve each analog sample into a digital code on a per-conversion cycle. SAR ADCs are valued for their deterministic latency, lack of pipeline delay, and excellent DC accuracy, which is why they remain the dominant architecture for multiplexed multi-channel data acquisition in the 10-bit to 16-bit resolution range at sample rates from 100 ksps to a few Msps. Within the broader taxonomy, the ADC104S101 sits at the SAR -> ADC -> data converter -> signal chain -> mixed-signal IC hierarchy. Key features of the ADC104S101 include 4 input channels, true 10-bit resolution with no missing codes, a specified sample-rate range of 500 ksps to 1 Msps (fully characterized across the range rather than at one point), a single 2.7 V to 5.25 V supply, straight-binary serial output compatible with SPI, QSPI, MICROWIRE and many DSP serial ports, and an industrial operating temperature range of -40C to +85C. The wide 2.7 V to 5.25 V supply range allows direct interfacing to 3.3 V and 5 V microcontrollers without level shifters. The internal SAR architecture combined with an input sample-and-hold and on-chip conversion clock gives the ADC104S101 deterministic, single-cycle conversion latency, simplifying time-multiplexed channel scanning and making it well suited for control loops and synchronized multi-channel measurements. The four channels share a single serial data output and chip-select, which keeps the host-side GPIO count low and enables easy expansion to more channels by cascading additional devices on the same SPI bus. Typical applications include multi-channel sensor monitoring (temperature, pressure, strain-gauge bridges), portable and battery-powered instrumentation, factory-automation analog front ends, motor-control feedback rails, and general-purpose data-acquisition boards for industrial and consumer systems. The wide supply range and low power consumption also suit handheld meter designs where 2x or 3x AA-cell stacks or a single Li-ion cell must be accepted directly. When designing with this part, place a 0.1 uF decoupling capacitor as close as possible to the AVDD pin and a larger 1 uF to 10 uF bulk capacitor at the supply entrance. Keep analog input traces short and guarded, and route the serial clock (SCLK) away from analog input lines to minimize digital coupling into the sample-and-hold. The 10-lead VSSOP package has a small thermal pad, so pay attention to PCB land pattern and solder paste stencil to avoid tombstoning during reflow. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not found in the manufacturer datasheet alone, providing a single-page engineering reference for selection, sourcing and PCB implementation.
ADC104S101CIMMX - 10-Bit 4-Ch 500ksps-1Msps SAR ADC | TI
The Texas Instruments ADC104S101CIMMX is a low-power, four-channel CMOS 10-bit analog-to-digital converter with a high-speed serial interface, offered in a 10-pin VSSOP (Mini Small Outline Package) and specified over a sample rate range of 500 ksps to 1 Msps. Based on a successive-approximation register (SAR) architecture with an internal track-and-hold, the converter accepts a 0V to 5.25V analog input range, draws only milliwatts of power, and is fully specified across the industrial -40C to +85C temperature range. What is a SAR ADC? A successive-approximation register analog-to-digital converter is a sampling ADC architecture that converts analog inputs to a digital code one bit at a time using a binary-search algorithm against an internal DAC. SAR ADCs sit in the broader taxonomy of analog-to-digital converter -> data converter -> mixed-signal IC -> semiconductor. Compared to delta-sigma (oversampling) ADCs, SAR parts deliver lower latency, deterministic throughput, and excellent AC/DC performance for multiplexed multi-channel systems running at hundreds-of-ksps to a few Msps. Key features include 4 single-ended input channels multiplexed into a single SAR core, a SPI/QSPI/MICROWIRE-compatible serial interface, an external reference input (typically 5V for full-scale 5V input), ±1 LSB INL/DNL (typical), and CMOS-compatible digital I/O operating from a single 2.7V to 5.25V supply. Internal sequencing eliminates the need for an external sample clock, and the wide input voltage compliance lets the part directly digitize 5V signals without external dividers. Typical applications include 4-channel data-acquisition front ends, industrial process control and sensor monitoring, portable instrumentation, battery monitoring and management, system monitoring on industrial PCs and servers, and consumer audio/video signal monitoring. The wide analog input range, small package, and SPI-compatible interface make it especially useful in cost- and space-constrained embedded systems. When designing with this device, place the input RC filter components close to each analog input pin, keep analog and digital grounds separate, and provide a low-noise external reference for full 10-bit accuracy. For sample rates below 500 ksps the part is fully specified; operation above 1 Msps is not guaranteed. This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
ADC104S101CIMMX/NOPB - 4-Ch 10-Bit 500-1MSPS SAR ADC | TI
The Texas Instruments ADC104S101CIMMX/NOPB is a low-power, four-channel CMOS 10-bit analog-to-digital converter with a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, specified across the full 500 ksps to 1 Msps sample-rate range in a 10-pin MSOP (DGS) package on tape-and-reel. It integrates a successive-approximation register (SAR) architecture with an internal track-and-hold, a 4-channel analog input multiplexer, an on-chip reference buffer, and a high-speed serial output, all in one compact surface-mount IC. An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a precision data-conversion architecture that performs one bit of conversion per internal clock cycle using a binary-search algorithm against a known reference voltage. SAR ADCs offer deterministic latency, no pipeline delay, excellent DC accuracy, and very low power consumption relative to their throughput. ADC104S101 belongs to the SAR ADC family within the broader data-converter hierarchy: SAR ADC -> ADC -> data converter -> mixed-signal IC -> semiconductor. Key features include 10-bit resolution, four single-ended analog input channels, throughput from 500 ksps to 1 Msps, single 2.7 V to 5.25 V supply operation, ±1 LSB INL/DNL (max), and a serial interface compatible with SPI, QSPI, and MICROWIRE. The device typically consumes only 3.6 mW at 1 Msps with a 3 V supply and automatically powers down between conversions, drawing microamps in standby. An external reference voltage is required and supports ratiometric measurements. In typical applications, the ADC104S101 is used in multi-channel sensor digitizing, system monitoring (temperature, voltage, current loops), industrial control loops, handheld instrumentation, and consumer audio/video signal-level measurement. The wide input range (0 V to VA, single-ended) and small MSOP footprint suit dense, multi-channel PCBs. The four-channel MUX plus single ADC core reduces BOM versus four separate ADC ICs. When designing with the ADC104S101CIMMX/NOPB, drive each analog input through a low-impedance source (op-amp buffer or RC anti-alias filter) to maintain AC performance, place 0.1 uF ceramic bypass close to VA and VREF, and use GND/power planes to limit digital switching noise. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the official datasheet.