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ADS8320E/2K5

ADS8320E/2K5 - 16-Bit 100kHz SAR ADC | Texas Instruments

The Texas Instruments ADS8320E/2K5 is a 16-bit, 100-kHz sampling analog-to-digital converter in an 8-pin VSSOP package. The manufacturer specifies ensured operation over a 2.7 V to 5.25 V supply range and describes operation from 2 V to 5.25 V, with a synchronous serial interface compatible with SPI/SSI, a differential input, and a reference adjustable from 500 mV to VCC. Its low power consumption makes it suitable for portable and battery-operated measurement systems. An ADC is an analog-to-digital converter, a semiconductor that samples a continuous voltage and produces a corresponding numeric code. This ADS8320 belongs to the SAR ADC family, in which a successive-approximation conversion cycle progressively resolves the input voltage. Compared with flash, pipeline, and sigma-delta architectures, SAR ADCs are commonly selected for moderate resolution, compact implementation, low power, and direct sequential data output. The headline characteristics are 16-bit resolution, a 100-kHz sampling rate, and operation from 2.7 V to 5.25 V. The device uses one SAR input, offers a differential input, and can operate with very little power even at the full 100-kHz data rate. A 3-uA maximum power-down current further supports low-duty-cycle acquisition. Its synchronous serial interface simplifies connection to microcontrollers and dedicated digital controllers while supporting SPI/SSI-compatible signaling. The reference-voltage arrangement provides another key design dimension: TI states that the reference can be set to any level from 500 mV to VCC. Full-scale accuracy therefore depends not only on the ADC but also on reference quality, analog front-end conditioning, source impedance, and printed-board contamination. Designers must preserve the differential input topology and account for acquisition time when planning conversion timing around the 100-kHz maximum data rate. Typical uses include battery-powered instrumentation, portable industrial sensors, process monitoring, low-energy edge acquisition, and embedded measurement systems. The VSSOP package reduces board area, but analog layout still requires a quiet reference, controlled return paths, and decoupling close to the supply pins. The device is best suited to applications whose required bandwidth is within the SAR ADC's 100-kHz sampling capability and whose dynamic range benefits from a 16-bit result. For implementation, verify the complete pinout and timing values in the manufacturer datasheet rather than inferring them from the VSSOP outline. Keep the analog input path short, place bypass capacitors close to the device, and avoid routing digital clock and serial-data traces beneath sensitive analog nodes. Validate gain, offset, and noise performance with the intended source impedance and reference implementation. This product page combines the verified TI product information, manufacturer datasheet link, distributor references, package information, and practical engineering guidance. It is intended to help engineers identify whether the ADS8320E/2K5 fits a low-power, 16-bit SAR measurement design before purchasing or committing to a PCB layout.

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ADS8322YB/2KG4

ADS8322YB/2KG4 - 16-Bit 500kSPS SAR ADC, 32-TQFP | Texas Instruments

The Texas Instruments ADS8322YB/2KG4 is a 16-bit, 500kSPS successive approximation register (SAR) analog-to-digital converter with an internal 2.5V reference, offered in a 32-pin TQFP (5x5 mm) package. It accepts a unipolar input range, draws low power at 500 kHz throughput, and provides either a full 16-bit parallel interface or an 8-bit mode using two read cycles across eight pins. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm against an internal precision DAC to determine each bit sequentially within one conversion cycle. SAR ADCs sit in the signal chain between the analog front end (sensor, amplifier, anti-alias filter) and the digital controller (FPGA, MCU, DSP); they offer deterministic latency, no pipeline delay, and inherently good DC accuracy - making them the converter class of choice for multiplexed data acquisition, industrial control loops, and precision instrumentation. Key features of the ADS8322YB/2KG4 include a 16-bit capacitor-based SAR core with inherent sample-and-hold, an integrated 2.5V reference (eliminating an external reference IC and saving BOM cost), low power consumption at 500 kSPS throughput, and a parallel interface that supports either 16-bit or 8-bit bus mode. The /2K suffix indicates tape-and-reel packaging, while G4 denotes a Pb-free (lead-free) finish. Architecturally, the device combines a charge-redistribution DAC, a precision internal bandgap reference, and a successive-approximation register. The single 5V supply simplifies system power, and the high-speed parallel interface allows direct connection to FPGAs and DSPs without glue logic. Compared with pipelined ADCs of similar speed, the ADS8322 delivers better DC linearity for multiplexed-channel scanning because there is no pipeline latency to flush between conversions. Typical applications include data acquisition systems, industrial process control, optical networking power monitoring, portable instrumentation, and battery-powered test equipment. Designers also use the part in precision weigh scales, medical patient monitoring front ends, and motor-control feedback loops. When designing with the ADS8322YB/2KG4, ensure the analog input is driven by a low-impedance buffer with sufficient bandwidth to settle within the acquisition window, and use a clean 5V analog supply well decoupled at the AVdd pin. The /2K G4 ordering code identifies lead-free tape-and-reel packaging. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ADS8324EB/250G4

ADS8324EB/250G4 - 14-Bit 50kSPS ADC 1.8V | Texas Instruments

The Texas Instruments ADS8324EB/250G4 is a 14-bit, 50-kSPS, 1.8-V micropower sampling analog-to-digital converter (ADC) housed in an 8-pin MSOP (PowerPAD) package. It features a synchronous SPI/SSI-compatible serial interface, a differential analog input, and an internal reference that can be set to any level from 500 mV to VCC/2. The /250G4 suffix indicates 250-piece tape-and-reel packaging with green/RoHS compliance and is pin-compatible with the older ADS7817 family. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts real-world analog voltages into discrete digital codes, sitting within the data-converter hierarchy of signal chain ICs (sensor -> amplifier -> ADC -> digital processor). Successive-approximation-register (SAR) ADCs like the ADS8324 achieve deterministic latency, low power, and high DC accuracy - ideal for multiplexed low-frequency precision measurements where battery life and small board area matter as much as raw speed. Key specifications include 14-bit resolution with no missing codes, 50 kSPS maximum throughput, 1.8 V single-supply operation, a 3-microamp maximum power-down current, and a 2.7 mA typical active current. The bipolar differential input accepts input ranges up to ±VREF, where the internal reference supports 500 mV to VCC/2. The serial interface uses an external clock for SAR conversions and outputs MSB-first data with a 2-state flag bit. Architecturally, the converter combines a charge-redistribution SAR core with an internal reference buffer, auto-power-down between conversions, and a daisy-chainable serial output. The device's 1.8 V supply and 3-microamp power-down current make it a benchmark for battery-powered precision instrumentation where every microwatt of quiescent draw matters. Typical applications include portable and battery-operated data loggers, remote sensor modules, isolated data acquisition front-ends, simultaneous multi-channel systems, handheld instrumentation, and GPS accessory modules. Its pin-compatibility with the ADS7817 family allows drop-in upgrade of legacy 12-bit designs to 14-bit resolution without PCB rework. When designing with the ADS8324, decouple VCC with a 0.1 µF ceramic capacitor placed within 5 mm of the supply pin and provide a 10 µF bulk capacitor on the reference pin. The CONVST signal must be clean; route DCLK and DOUT as 50-ohm-controlled traces and ensure the CS/DOUT timing satisfies the t_CNV and t_CK specifications. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes that complement the manufacturer datasheet for engineers evaluating the ADS8324EB/250G4 for new designs or as a second-source qualification candidate.

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ADS8328IRSAR

ADS8328IRSAR - 16-Bit 500kSPS 2-Channel SAR ADC | Texas Instruments

The Texas Instruments ADS8328IRSAR is a 16-bit, 500-kSPS, low-power successive-approximation-register (SAR) analog-to-digital converter with a 2-to-1 input multiplexer, offered in a 16-pin VQFN (RSA) package with exposed thermal pad. It operates from a single analog supply of 2.7 V to 5.5 V and a digital I/O supply of 1.65 V to 5.5 V, drawing only 10 mW at full throughput. The device integrates a high-speed synchronous serial interface compatible with DSP, SPI, and frame-sync protocols, and supports chain-mode daisy-chaining of multiple converters. An SAR ADC (successive-approximation-register analog-to-digital converter) is a sampled-data converter class that resolves N bits in N clock cycles by switching a binary-weighted capacitor DAC against the input. SAR ADCs occupy the middle ground between flash converters (fastest, lowest resolution) and sigma-delta (highest resolution, slowest). The ADS8328 belongs to the precision-signal-chain IC family, sitting under data converters (ADC/DAC) in the broader signal-chain taxonomy, with a single +5 V analog supply as its typical operating rail. Key features include ±0.5 LSB typical INL and ±0.5 LSB typical DNL, a 2-to-1 input MUX with programmable TAG-bit output for channel identification, and 1.636 µs typical conversion time. The device also offers a flexible power-down state that reduces supply current to <1 µA between conversions, plus an offset-calibration command and an internal 20 MHz serial clock. The wide digital I/O range (1.65 V to 5.5 V) allows direct interfacing to 1.8 V, 3.3 V, and 5 V microcontrollers and DSPs without level shifters. Architecturally, the ADS8328IRSAR uses a charge-redistribution capacitor DAC with inherent sample-and-hold, which preserves the input signal during the conversion window and supports takt-manager placement of the input capacitor on each channel. The 2:1 MUX and TAG bit allow multi-channel data acquisition on a single serial bus, while chain-mode operation lets up to 16 devices share one CS line for 32-channel systems. Typical applications include portable industrial data loggers, multi-channel battery-pack monitors, optical-module photodiode readout, medical instrumentation signal chains, and precision sensor front ends. The wide analog supply tolerance makes it suitable for both 3.3 V and 5 V designs. When designing with this device, ensure adequate input bandwidth and use a low-impedance input buffer when driving from high-impedance sensors. The serial interface clock can be sourced from the host or generated by the ADC's internal oscillator. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ADS8342IBPFBR

ADS8342IBPFBR - 16-Bit 250kSPS 4-Ch SAR ADC | Texas Instruments

The Texas Instruments ADS8342IBPFBR is a 16-bit, 4-channel, parallel-output successive approximation register (SAR) analog-to-digital converter sampling at up to 250 kSPS while dissipating only 200 mW from a ±5 V supply. Housed in a TQFP-48 (PFB) package with industrial -40°C to +85°C operation, this ADC combines a true-bipolar 4-channel input multiplexer with an inherent sample-and-hold and 16-bit ensured no-missing-codes performance. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses an internal capacitive DAC and comparator to perform a binary search across the input voltage each conversion cycle. SAR ADCs excel at medium-resolution, medium-speed precision measurements because they are deterministic in latency, free of pipeline delay, and exhibit excellent DC linearity, making them the standard choice for multiplexed data-acquisition systems, industrial process control, and precision instrumentation where one sample per channel per cycle is acceptable. Key features include true bipolar input signal range on each of the four channels (selectable ±VREF input spans), 1 mV max channel offset, integrated 4-to-1 analog multiplexer with channel-by-channel conversion, parallel 3-state output drivers for direct microprocessor interface, and a hardware-triggered conversion start. The capacitive-DAC SAR core achieves ±4 LSB maximum INL at the I-grade and ±6 LSB at the standard grade, ensuring monotonic 16-bit performance across the full industrial temperature range. Architecturally, the ADS8342 pairs a binary-weighted capacitor DAC array with a low-noise comparator and on-chip reference buffer, while a state-machine controller sequences acquisition, conversion, and output. The wide bipolar input range eliminates front-end signal conditioning for many industrial sensors, and the 250 kSPS aggregate throughput lets one ADC service up to four sensors without additional switching. The 3-state parallel bus simplifies connection to FPGAs, DSPs, and microprocessors, while the synchronous /CS and BUSY handshake makes system integration straightforward. Typical applications include multi-channel data acquisition systems, industrial process control front ends, precision instrumentation, weigh scales and load-cell digitizers, and portable or battery-powered measurement equipment. Designers select the ADS8342 when they need guaranteed 16-bit no-missing-codes performance, true bipolar inputs on multiple channels, and parallel-interface simplicity without an integrated PGA. When designing with this part, ensure the analog input is bandwidth-limited well below the Nyquist rate and that the external reference is low-noise and well-decoupled to preserve the 16-bit DC accuracy. The /BUSY output must be monitored by the host to avoid bus contention during conversion, and the analog supply must be heavily bypassed with both bulk and ceramic capacitors placed close to the AVDD pin. This page synthesizes real-time distributor pricing from DigiKey and Mouser, drop-in alternative guidance from TI's cross-reference catalog, and practical PCB-layout / reference-decoupling notes that engineers need but that the bare manufacturer datasheet does not consolidate in one place.

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ADS8342IPFBR

ADS8342IPFBR - 16-Bit 250kSPS 4-Ch SAR ADC | Texas Instruments

The Texas Instruments ADS8342IPFBR is a 16-bit, 4-channel, 250 kSPS successive-approximation-register (SAR) analog-to-digital converter with a parallel output interface, supplied in a 48-pin TQFP (PFB) package. The device accepts 4 true-bipolar input channels, dissipates approximately 200 mW from ±5 V analog and +5 V digital supplies, and is specified for the industrial -40 °C to +85 °C temperature range. Key headline specifications include 16-bit no-missing-code resolution, 250 kSPS throughput, 34 µs maximum conversion time, and a 1 mV maximum offset error. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that performs a binary search against the analog input using an internal DAC and comparator, producing one bit per clock cycle. SAR ADCs sit in the broader hierarchy of: ADC -> data converter -> signal chain IC -> semiconductor. Compared with delta-sigma and pipeline ADCs, SAR architectures offer deterministic latency, low latency-to-resolution trade-offs, and excellent DC accuracy without requiring complex anti-alias filtering, which is why they dominate multiplexed industrial acquisition, instrumentation, and motor-control front-ends. Differentiating features of the ADS8342IPFBR include a 4-channel true-bipolar input multiplexer with software-configurable unipolar or bipolar ranges, an internal sample-and-hold, a 16-bit guaranteed-no-missing-codes parallel interface, and 3-state driver outputs that connect directly to a microprocessor data bus. The converter requires an external reference voltage of typically +2.5 V and a 5 MHz external clock. Per the TI ADS8342 datasheet (SBAS277, dated May 2003), the device achieves 0.0092 % maximum linearity error and 87 dB typical SNR at 10 kHz input. The SAR architecture combined with the capacitor-based DAC delivers low aperture uncertainty and fast acquisition, making the device well suited to multiplexed multi-channel data-acquisition systems where sequential channel switching is required. The parallel 16-bit output minimizes host CPU overhead compared with serial-output ADCs, and the 3-state outputs simplify bus-sharing with memory or other peripherals. Typical applications include multi-channel data-acquisition systems (DAQ), industrial process-control front-ends, portable instrumentation, medical monitoring equipment, and precision sensor signal conditioning. The wide bipolar input range allows direct connection to ±5 V or ±10 V transducer outputs after simple external resistor scaling. The 48-pin TQFP package provides easy board assembly in moderate-density designs. When designing with this part, place the external 2.5 V reference and reference decoupling capacitors as close to the REF pin as possible, and provide a low-impedance analog ground plane to minimize conversion noise. For best DC linearity, use 1 % or better external input scaling resistors and ensure the CLK input has a clean 50 % duty-cycle source. This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design guidance beyond what is shown in the TI datasheet alone.

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ADS8342IPFBRG4

ADS8342IPFBRG4 - 16-Bit 250kSPS 4-Ch Bipolar ADC | Texas Instruments

The Texas Instruments ADS8342IPFBRG4 is a 16-bit, 250 kSPS, 4-channel, true-bipolar analog-to-digital converter (ADC) with a parallel output interface, packaged in a 48-pin TQFP (PFB). It accepts four true bipolar input channels and provides a parallel interface selectable between 8-bit and 16-bit bus modes for direct connection to microprocessors, microcontrollers, and DSPs. Sampling at up to 250 kSPS while drawing only 200 mW from a ±5 V analog supply, the ADS8342IPFBRG4 fits between slow precision converters and high-speed unipolar ADCs in cost-sensitive industrial data-acquisition front-ends. An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples a continuous analog input voltage and produces a discrete digital code proportional to the input. The ADS8342IPFBRG4 is a successive-approximation-register (SAR) ADC, which uses a capacitor-based charge-redistribution digital-to-analog converter (CDAC) and an internal sample-and-hold to acquire the input in a single conversion cycle per channel. Within the broader taxonomy, the ADS8342IPFBRG4 sits at: ADC -> SAR ADC -> bipolar-input ADC -> parallel-output ADC -> data-acquisition IC -> semiconductor IC. This positioning determines its ideal use cases versus sigma-delta ADCs (higher resolution, lower speed), pipeline ADCs (faster, unipolar), and integrating ADCs (slowest, highest noise rejection). Key features include 16-bit no-missing-codes guaranteed performance, four true bipolar input channels (±VREF range per channel) selected by an internal multiplexer, low input-referred offset (1 mV max), selectable 8-bit / 16-bit parallel interface, single-ended analog supply operation from a ±5 V split (or 5 V single with proper input conditioning), low 200 mW power dissipation, and a TQFP-48 surface-mount package rated for -40 °C to +85 °C industrial operating range. The suffix -RG4 indicates reel-packaging tape-and-reel with lead-free terminations. Internally, the ADS8342IPFBRG4 combines a low-noise reference buffer, a high-impedance input multiplexer, a charge-redistribution 16-bit SAR core, and a 3-state parallel output driver. The bipolar input structure is implemented with a front-end analog level-shifter, allowing each channel to digitize voltages that cross the analog ground rail, which is essential when measuring transducer outputs that swing above and below 0 V. Typical applications include industrial process-control instrumentation, multi-channel data-acquisition systems (DAQs), test and measurement equipment front-ends, medical instrumentation signal conditioning, and factory-automation analog input modules. Each of these scenarios benefits from the 4-channel input multiplexer that reduces system cost by eliminating external channel-switching components. When designing with this device, pay attention to analog supply decoupling, keep digital return currents separate from analog grounds, and provide adequate reference bypassing. A low-noise external reference is critical for achieving 16-bit performance; using the on-chip reference or a noisy supply reference will degrade SNR and integral nonlinearity. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineering value beyond what DigiKey or Mouser product pages offer.

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ADS8342IPFBTG4

ADS8342IPFBTG4 - 16-Bit 250kSPS 4-Ch SAR ADC | Texas Instruments

The Texas Instruments ADS8342IPFBTG4 is a 16-bit, 250-kSPS, 4-channel successive-approximation analog-to-digital converter (SAR ADC) with true bipolar input channels and a parallel 3-state output interface, housed in a 48-pin TQFP (PFB) package. It integrates a precision 16-bit SAR core, a capacitor-based DAC, an inherent sample-and-hold circuit, 4-channel input multiplexer, and parallel microprocessor-compatible drivers, all specified at 250 kHz while dissipating only 200 mW from a ±5 V analog supply. A SAR ADC is a successive-approximation analog-to-digital converter that uses a comparator, successive-approximation register, and an internal DAC to convert analog signals one bit at a time over N conversion cycles. SAR ADCs offer deterministic latency, no pipeline delay, excellent DC accuracy, and are widely used in industrial automation, instrumentation, data acquisition, and process control where multi-channel sampling and bipolar signal handling are required. Key features include 4 true bipolar input channels with software-selectable input ranges (±10 V, ±5 V, 0 V to 10 V, 0 V to 5 V per channel), 16-bit no-missing-codes guaranteed performance, low 1 mV max offset error, 250 kSPS throughput, and a low-power 200 mW typical dissipation. The parallel interface provides direct connection to microprocessors, microcontrollers, and DSPs without glue logic. Internally, the ADS8342 uses a charge-redistribution capacitor DAC for accurate successive approximation, with integrated input signal conditioning and reference buffering. The architecture delivers low aperture jitter and deterministic conversion timing, making the device suitable for multiplexed multi-channel data acquisition where per-channel DC accuracy must be preserved across rapid channel switching. Typical applications include industrial process control and PLC analog input modules, multi-channel data acquisition systems, medical instrumentation front-ends, test and measurement equipment, and high-accuracy multi-axis sensor monitoring. The true bipolar input capability eliminates the need for external signal conditioning on ±10 V or ±5 V transducer outputs. When designing with the ADS8342, ensure that the analog (AVDD) and digital (DVDD) supplies are well decoupled, and that the external reference is low-impedance and well bypassed at the REF pin. For multi-channel systems, the input multiplexer settling time should be considered when channel switching at full throughput to preserve channel-to-channel accuracy. This page synthesizes distributor pricing, drop-in compatible alternatives, and practical design notes that complement the manufacturer datasheet.

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ADS8343EB/2K5

ADS8343EB/2K5 - 16-Bit 4-Ch 100kHz SAR ADC | Texas Instruments

The Texas Instruments ADS8343EB/2K5 is a 16-bit, 4-channel successive-approximation analog-to-digital converter (SAR ADC) with a synchronous serial interface, supplied in a 16-pin SSOP (DBQ) package and shipped on a 2,500-piece tape-and-reel. It samples at up to 100 kHz throughput from a single 2.7 V to 5 V supply, dissipating typically 8 mW at full speed, and offers 86 dB SINAD, bipolar input capability, and pin-for-pin compatibility with the legacy ADS7841 and ADS8341. A SAR ADC is a successive-approximation analog-to-digital converter that resolves one bit per internal clock cycle using a binary-search algorithm against a precision DAC and comparator. Within the data-converter hierarchy, SAR ADCs sit between flash converters (fastest, lowest resolution) and sigma-delta ADCs (highest resolution, lowest bandwidth), making them the workhorse choice for multiplexed multi-channel 12-16 bit systems where deterministic latency, low power, and small package size matter more than maximum sample rate. The ADS8343 family is a textbook example of this class. Key features include 4 single-ended or 2 differential input channels routed through an on-chip analog multiplexer, an input range of 0 V to VREF (with bipolar input capability when VREF = VCC/2, giving ±VREF), a reference voltage from 500 mV to VCC, an 86 dB SINAD figure, a serial SPI/QSPI/MICROWIRE-compatible interface, and a hardware shutdown mode that drops quiescent current below 1 µA for battery-powered duty-cycled applications. The architecture uses a capacitive charge-redistribution DAC with a high-performance comparator and on-chip sample-and-hold. Conversion is initiated on the falling edge of CS, and 16 clocks later a full 16-bit word is clocked out on DOUT, giving deterministic latency useful for motor-control and multi-plexed data-acquisition loops. The wide 2.7 V-5 V supply range and bipolar input option make it equally comfortable in 3.3 V microcontroller and 5 V industrial signal chains. Typical applications include industrial process-control data acquisition, portable battery-powered instrumentation, touch-screen controllers (where the part is a pin-for-pin upgrade for ADS7841/ADS8341 designs), motor-control feedback, and multi-channel sensor-interface boards. Its shutdown mode makes it attractive for hand-held meters that spend most of their time asleep. When designing with the ADS8343, decouple VCC and VREF locally with 0.1 µF ceramics and add a 10 µF bulk capacitor, keep analog and digital grounds joined at a single star point, and avoid driving the analog inputs while CS is idle without a defined DC bias. The /2K5 suffix denotes the 2,500-unit tape-and-reel packaging option, so order the correct quantity break for your production line.

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ADS8343EB/2K5G4

ADS8343EB/2K5G4 - 16-Bit 4-Ch 100kHz SAR ADC | Texas Instruments

The Texas Instruments ADS8343EB/2K5G4 is a 16-bit, 4-channel, successive-approximation-register (SAR) analog-to-digital converter (ADC) with serial output, capable of up to 100 kHz conversion rate, housed in a 16-pin SSOP package. It features a bipolar input range, single supply operation from 2.7V to 5.25V, and 86 dB SINAD, making it suitable for precision data acquisition in industrial and instrumentation applications. The part is pin-for-pin compatible with the ADS7841 and ADS8341, simplifying upgrades in existing designs. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a precision data conversion device that uses a binary search algorithm to digitize analog inputs one bit at a time. SAR ADCs occupy a tier in the conversion hierarchy: ADC -> data converter -> data acquisition IC -> signal chain -> mixed-signal semiconductor. They are valued for high accuracy, low latency, deterministic sampling, and excellent DC linearity, making them preferable to delta-sigma ADCs in multiplexed multi-channel systems where per-channel throughput must be preserved. Key features of the ADS8343EB include 4 single-ended or 2 differential input channels, an SPI/QSPI/MICROWIRE-compatible serial interface, 86 dB SINAD, low power dissipation (typical 2.7 mW at 100 kHz with 5V supply), and a -40C to +85C industrial operating temperature range. The bipolar input range enables direct sampling of signals that swing around ground or operate from negative rails, removing the need for level-shifting front ends in many industrial control loops. Technically, the ADS8343EB uses a charge-redistribution DAC architecture with an internal sample-and-hold, a precision comparator, and an on-chip clock. Its 2's complement binary output format streamlines interfacing with both microcontrollers and digital signal processors. The /2K5G4 suffix indicates a 2,500-unit tape-and-reel packaging variant of the ADS8343EB, while the G4 suffix marks it as a Pb-free, RoHS-compliant, green-product release. Typical applications include industrial process control, portable instrumentation, battery-powered data loggers, isolated data acquisition front ends, and multi-channel sensor readback. The device's bipolar input and modest power budget also suit remote or loop-powered sensor nodes. When designing with this part, ensure the reference voltage source is low-noise and adequately decoupled, since reference noise couples directly into conversion results. The serial interface timing is straightforward, but the BUSY signal must be polled or used to gate SCLK correctly to avoid readback corruption.

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ADS8345EB/2K5G4

ADS8345EB/2K5G4 - 16-Bit, 100kSPS 8-Ch SAR ADC | Texas Instruments

The Texas Instruments ADS8345EB/2K5G4 is a 16-bit, 100-kSPS, 8-channel successive-approximation-register (SAR) analog-to-digital converter with a synchronous serial (SPI/QSPI/MICROWIRE-compatible) interface, supplied in a 20-pin SSOP (DB) package on a 2500-piece tape-and-reel. It accepts 8 single-ended or 4 differential input channels through an onboard analog multiplexer and supports bipolar input ranges when reference and input scaling are configured appropriately. An SAR ADC is a successive-approximation analog-to-digital converter: a sample-and-hold captures the input, an internal binary-searched DAC drives a comparator, and the result is produced in N conversion cycles for N-bit resolution. SAR ADCs deliver deterministic latency and excellent static linearity without the pipeline delay of pipeline ADCs, placing them in the broader category of data-acquisition and signal-chain ICs. The ADS8345 specifically targets low-power multi-channel measurement where deterministic throughput is required. Key specifications include 85 dB SINAD at 100 kHz throughput, 8 mW typical power dissipation from a single +2.7V-to-+5.5V supply, software-configurable unipolar/bipolar ranges, low-power shutdown mode (typical 1.5 µA), and a hardware-/software-programmable channel sequencer. Reference voltage VREF accepts 500 mV to VCC/2 (typ. 2.5V or 5V), and the device includes a serial-interface daisy-chain capability for cascading multiple ADS8345s on one bus. Architecturally, the part uses a charge-redistribution SAR core with an internal clock; conversions are fully self-timed and the BUSY falling edge indicates completion. The SSOP-20 footprint is pin-compatible with the legacy ADS7844/ADS8344 and the MAX147-class 12/14-bit ADCs, enabling drop-in upgrades on existing PCB layouts. Internal reference buffer and on-chip input ESD protection (HBM ≥ 2 kV typical) reduce external component count. Typical applications include portable data loggers, battery-powered personal digital assistants, multi-channel industrial sensors (4-20 mA bridges), patient-monitoring front ends, isolated data acquisition using digital isolators behind the SPI bus, and pen-input / touch-screen digitizers. The bipolar input option makes the device equally suitable for instrumentation amplifiers translating bipolar transducer signals. A primary design consideration is reference decoupling: a low-noise, 10 µF tantalum + 0.1 µF ceramic combination must sit within 5 mm of the VREF pin to achieve the rated 85 dB SINAD; otherwise linearity degrades 6-10 dB. The /SHDN pin should be tied high through a 100 kΩ pull-up if unused, since a floating /SHDN can intermittently enable the converter and raise quiescent current.

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ADS8345NB/1K

ADS8345NB/1K - 16-Bit 8-Ch 100kSPS SAR ADC | Texas Instruments

The Texas Instruments ADS8345NB/1K is a 16-bit, 100-kSPS, 8-channel successive-approximation register (SAR) analog-to-digital converter (ADC) with a synchronous serial (SPI-compatible) interface, supplied on Tape & Reel in a 20-pin SSOP package. The device provides bipolar or unipolar fully differential inputs through an onboard analog multiplexer, supports single-ended 8-channel or differential 4-channel configurations, and operates from a single +2.7V to +5.25V analog supply with a separate digital supply. According to the manufacturer datasheet, typical power dissipation is 8 mW at 100 kHz throughput with a +5V supply, and a hardware shutdown mode reduces quiescent current to under 1 µA between conversions, making the part suitable for battery-operated systems. A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of data converter that uses a binary-search algorithm against an internal precision DAC and a comparator to resolve analog inputs one bit per conversion clock cycle; SAR ADCs sit within the broader hierarchy of analog-to-digital converters -> data converters -> signal chain ICs -> semiconductor. SAR architectures are widely preferred when deterministic latency, low latency, and excellent DC accuracy are required, as opposed to delta-sigma converters which trade speed for resolution. The ADS8345NB/1K's 100 kSPS maximum sample rate and 85 dB SINAD place it firmly in the category of mid-speed, high-accuracy precision measurement ADCs. Key features include 100 kSPS maximum sampling rate, 85 dB SINAD, a low-power shutdown mode, an input range selectable from 0 V to VREF (unipolar) or ±VREF (bipolar) with VREF settable from 500 mV to +VCC/2, and SPI/QSPI/MICROWIRE-compatible serial interface. Channel selection is controlled through a 3-bit address field, and an on-chip CONVST signal initiates conversions independently of the read cycle, simplifying trigger and synchronization designs. The device operates over -40 °C to +85 °C industrial temperature range and is offered in QSOP-20 and SSOP-20 packages. The ADS8345NB/1K's onboard 8-channel multiplexer and serial interface remove the need for external analog switches or parallel bus buffers, reducing PCB area and total BOM cost. Compared with first-generation ADS7844/ADS8344 devices, the ADS8345 maintains full pin-to-pin compatibility while improving noise performance and adding a hardware shutdown pin for power-constrained applications. Designers commonly use the part in 4-wire resistive touchscreens, multi-cell battery monitors, and isolated data-acquisition front-ends where its serial interface couples cleanly to digital isolators. Typical applications include portable multi-channel data loggers, personal digital assistants, industrial process control instrumentation, and remote data acquisition modules. The combination of 8 channels and 16-bit resolution makes the part attractive where multiple sensors must share a single ADC to minimize cost and controller pin count, with channel cycling handled in firmware. When designing with the ADS8345NB/1K, ensure VREF is well-bypassed with a 10 µF tantalum or ceramic capacitor in parallel with a 0.1 µF ceramic, and keep analog/digital grounds separated back at a single star point to preserve the 85 dB SINAD figure. Decouple both AVDD and DVDD pins individually, and route the analog inputs away from switching traces or clocks to avoid coupling noise into the comparator. This page synthesizes distributor pricing, drop-in same-package and cross-package alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers with a single decision-ready reference.

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ADS8345NB/1KG4

ADS8345NB/1KG4 - 16-Bit 8-Ch 100kSPS SAR ADC | Texas Instruments

The Texas Instruments ADS8345NB/1KG4 is a 16-bit, 100-kSPS, 8-channel successive-approximation analog-to-digital converter (SAR ADC) housed in a 20-pin SSOP package with a synchronous serial (SPI/QSPI/MICROWIRE-compatible) interface. The device offers 8 single-ended or 4 differential input channels, 85 dB SINAD at 10 kHz, and a typical power dissipation of 8 mW at 100 kHz throughput with a +5 V supply. The /1KG4 suffix denotes the tape-and-reel packaging variant of the ADS8345NB base part. A SAR ADC is a successive-approximation register analog-to-digital converter that performs a binary search through an internal capacitive DAC to resolve each conversion cycle in a fixed number of clock cycles. SAR ADCs combine low-latency (no pipeline delay), low power, and excellent DC accuracy, which places them in the hierarchy of: ADC -> SAR ADC -> data converter -> signal chain IC -> semiconductor. This makes the ADS8345 ideally suited for multiplexed multi-channel data acquisition where fast channel switching and deterministic latency are required. Key features of the ADS8345NB/1KG4 include a wide 2.7 V to 5.25 V single supply range, a bipolar input range with reference voltage (VREF) variable from 500 mV to VCC/2, a low-power shutdown mode (typical 0.5 uA), and pin-for-pin compatibility with the ADS7844 and ADS8344. The 20-SSOP package provides a compact footprint suitable for high-density PCB designs, and the operating temperature range of -40C to +85C supports industrial environments. Architecturally, the ADS8345NB integrates an 8-channel analog input multiplexer, a high-performance SAR core with internal clock, a programmable reference input, and an SPI-compatible serial interface. The reference input supports ratiometric measurements when paired with an external reference and ADC excitation source, simplifying bridge-sensor and thermistor designs. Typical applications of the ADS8345NB/1KG4 include data acquisition systems, test and measurement equipment, industrial process control, personal digital assistants, and battery-operated portable multi-channel data loggers. The low 8 mW typical power and 0.5 uA shutdown current also make it well-suited for handheld instrumentation. When designing with this ADC, ensure the analog and digital grounds are tied at a single point near the ADC and that VREF is decoupled with both a 10 uF bulk and a 0.1 uF ceramic capacitor. For ratiometric measurements, use a low-impedance reference to avoid gain errors at full throughput. This page synthesizes distributor pricing, drop-in-compatible pin-to-pin alternatives, and practical design guidance not available on the manufacturer datasheet, giving engineers a single reference for selecting, sourcing, and laying out the ADS8345NB/1KG4.

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ADS8370IRHPR

ADS8370IRHPR - 16-Bit 600kSPS SAR ADC | Texas Instruments

The Texas Instruments ADS8370IRHPR is a 16-bit, 600-kSPS successive-approximation (SAR) analog-to-digital converter (ADC) with a pseudo-differential (single-ended) input, supplied in a 28-pin QFN (RHP) 6x6 mm package with exposed thermal pad. According to the manufacturer datasheet, the device integrates a 16-bit capacitor-based SAR conversion core with inherent sample-and-hold, supporting a high-speed CMOS serial interface with clock speeds up to 40 MHz. The part is characterized for industrial -40C to +85C operation and ships on tape and reel packaging. A SAR ADC is a type of data converter that resolves an analog input one bit per conversion clock cycle using a switched-capacitor binary-weighted network, producing a deterministic latency and requiring no pipeline settling time. Within the broader converter hierarchy, SAR converters sit between audio-oriented delta-sigma ADCs and high-speed pipeline ADCs, making them ideal for multiplexed data-acquisition front-ends, precision instrumentation, and motor-control feedback loops where both throughput and DC accuracy matter. The ADS8370 family adds a low-power serial interface optimized for microcontroller- or DSP-based systems. Headline features include 16-bit resolution with no missing codes, a 600-kSPS maximum sample rate, a serial interface running up to 40 MHz, an internal reference option, ±0.5 LSB typical INL/DNL (per the chipdistributor excerpt of the datasheet header), micropower operation suitable for battery-aware designs, and a 28-lead QFN exposed-pad package that lowers thermal resistance for high-duty-clock edge rates. The pseudo-differential input architecture provides > +5V tolerant analog inputs (per the device family characteristic) and allows the ADC to reject DC common-mode disturbances on the input rail. Architecturally the converter uses a charge-redistribution capacitor-DAC core, eliminating the need for a high-current input buffer and keeping analog-input current low at sample time. The internal reference can be overdriven by an external 2.5V source for ratiometric measurements, and the serial output can be tied to a DSP SPI port, an FPGA SERDES, or a microcontroller SPI master. Typical applications include multi-channel data-acquisition boards, industrial process-control sensor read-out (load cells, RTDs, strain gauges), medical instrumentation front-ends, optical encoders and motor-control position feedback, audio-bandwidth spectrum analyzers, and battery-cell monitoring systems. When designing with this part, ensure the serial SCLK is clean and that the AVDD decoupling network uses a 10uF plus 0.1uF capacitor pair close to the pin, since SAR accuracy is sensitive to high-frequency supply modulation. Note that the input range and reference configuration must be reviewed in the datasheet's full parametric table. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond a single datasheet excerpt, giving a board-level designer everything needed to qualify the ADS8370IRHPR for a new product.

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ADS8371IPFBR

ADS8371IPFBR - 16-Bit 750kHz SAR ADC w/ Parallel | Texas Instruments

The Texas Instruments ADS8371IPFBR is a 16-bit, 750-kHz successive-approximation-register (SAR) analog-to-digital converter with a unipolar input and a parallel digital interface, housed in a 48-pin TQFP (PFB) package measuring 7 mm x 7 mm. It delivers 750 ksamples/s throughput with ±1 LSB (max) INL and DNL, supports an external reference, and operates from a single 5 V analog supply with a 2.7 V to 5.25 V digital I/O supply. The converter features a micro-power design that draws only a few milliwatts during conversion, making it well suited for low-power instrumentation. A SAR ADC is a successive-approximation-register analog-to-digital converter that uses a binary-search algorithm and an internal capacitive DAC to digitize an input signal in N conversion cycles for N bits of resolution. SAR ADCs offer deterministic latency, no-pipeline delay, and excellent DC accuracy, which makes them the architecture of choice for multiplexed data acquisition, industrial control loops, and precision instrumentation where single-shot accuracy matters more than raw speed. The ADS8371 sits within TI's high-performance SAR portfolio, between slower 16-bit precision converters and faster 14-bit pipelined parts. Key features include 750 kSPS maximum sample rate, 16-bit resolution with no missing codes, 84 dB SNR at 100 kHz input, parallel 16-bit output bus, and an operating temperature range of -40 °C to +85 °C. The wide digital supply range (2.7 V to 5.25 V) simplifies interface to 3.3 V or 5 V microcontrollers, DSPs, and FPGAs without level shifters. The 48-TQFP (PFB) package offers a thermal pad for improved heat dissipation. Architecturally, the ADS8371 uses a charge-redistribution SAR core with input sampling on a switched-capacitor front-end, followed by an automatic power-down between conversions that keeps average dissipation low. The external reference (typically a low-noise 4.096 V or 5 V reference such as the REF5040) sets full-scale range and directly determines noise and drift performance. The parallel interface includes a BYTE mode for 8-bit-wide host buses. Typical applications include industrial process control and multi-channel data acquisition systems, precision portable instrumentation, medical monitoring equipment, optical networking power monitoring, and high-speed closed-loop servo control. The deterministic single-cycle latency is especially valuable in digital control loops where pipeline delay is unacceptable. When designing with the ADS8371, place the input RC network, decoupling capacitors, and reference bypass capacitors within 5 mm of the respective pins and use a solid ground plane under the device to preserve the 16-bit noise floor. The external reference's initial accuracy and temperature drift set the system-level absolute accuracy, so a low-drift reference (e.g., REF5040) is recommended for instrumentation-grade results. This page synthesizes distributor pricing, drop-in alternatives, application notes, and design guidance not found in the manufacturer datasheet alone.

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ADS8371IPFBRG4

ADS8371IPFBRG4 - 16-Bit 750kHz SAR ADC | Texas Instruments

The Texas Instruments ADS8371IPFBRG4 is a 16-bit, 750 kHz successive-approximation-register (SAR) analog-to-digital converter with a unipolar pseudo-bipolar input, parallel interface, and 48-pin TQFP (PFB) package. It delivers micro-power operation, an internal sample-and-hold, and a 16-bit-wide or byte-organized digital output bus for high-precision industrial measurement. A SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm and a capacitive charge-redistribution digital-to-analog converter to digitize a sampled input voltage in N conversion clock cycles. SAR ADCs sit in the broader category of data-converter ICs (ADC subfamily) alongside delta-sigma, pipeline, and flash architectures. They are favored for applications requiring deterministic latency, low power, and high accuracy at moderate sample rates, making them a workhorse for industrial automation, multi-channel data acquisition systems, and precision instrumentation. Key features of the ADS8371 include 750 kHz maximum sample rate, 16-bit no-missing-codes performance, a true 16-bit parallel interface (or 8-bit bus option over three read cycles), low power dissipation, and 0 V to 5 V or 0 V to 10 V unipolar analog input ranges when paired with an external front-end. The device supports hardware configuration of input range and output format via dedicated control pins, simplifying host MCU/DSP interface. The wide -40 °C to +85 °C industrial operating range and 48-lead TQFP (PFB) 7x7 mm package make it suitable for board-level industrial designs where thermal headroom and footprint density matter. Typical applications include multi-axis industrial process control, motor-control feedback loops, sonar and acoustic imaging front-ends, optical networking instrumentation, and medical patient-monitoring equipment. The combination of throughput and low power also suits portable or battery-backed test equipment. When designing with the ADS8371, ensure analog inputs are buffered with a low-impedance driver to settle within the acquisition window, and follow recommended layout practices for the reference and power decoupling pins to preserve 16-bit linearity.

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ADS8372IBRHPRG4

ADS8372IBRHPRG4 - 16-Bit 600kHz Pseudo-Bipolar SAR ADC | Texas Instruments

The Texas Instruments ADS8372IBRHPRG4 is a 16-bit, 600-kHz, fully differential pseudo-bipolar input, micropower sampling analog-to-digital converter (ADC) housed in a 28-pin QFN (RHP) 6x6 mm package with an exposed thermal pad. The -40C to +85C industrial temperature grade and CMOS serial interface at clock speeds up to 40 MHz make it well suited for high-speed industrial data acquisition, motor control feedback loops, and precision instrumentation front ends. The device integrates a 16-bit capacitor-based successive-approximation register (SAR) ADC with an inherent sample-and-hold front end, and supports a pseudo-bipolar differential input range that allows true bipolar signals to be digitized from a single supply rail. An SAR ADC is a successive-approximation analog-to-digital converter that uses a binary-search algorithm against an internal capacitive DAC to resolve each sample. Compared with delta-sigma (sigma-delta) ADCs, SAR architectures deliver deterministic latency, single-cycle conversion, and excellent behavior on multiplexed or multi-channel inputs. The ADS8372 family sits in the high-speed, low-power node of the SAR tier: it resolves 16 bits at 600 kSPS with no pipeline delay, making it a workhorse for industrial control loops where latency determinism matters as much as raw sample rate. Key features of the ADS8372IBRHPRG4 include 600 kSPS maximum throughput, 16-bit no-missing-codes resolution, fully differential pseudo-bipolar input with wide common-mode range, low power dissipation suitable for portable industrial instrumentation, an internal 2.5V reference option with external override, and a high-speed 40 MHz serial CMOS output interface compatible with DSPs, FPGAs, and modern microcontrollers. The 28-pin QFN-6x6 PowerPAD package provides a low thermal-resistance path to PCB copper for reliable operation across the industrial temperature range. The ADS8372 is implemented in a low-power CMOS process with on-chip input sampling switches and a precision charge-redistribution DAC. Pseudo-bipolar input support is achieved through input common-mode translation rather than a negative supply, simplifying board design in single-supply industrial systems. The serial interface is SPI-/QSPI-/MICROWIRE-compatible, allowing direct connection to most digital host controllers without glue logic. Typical applications include industrial multi-channel data acquisition systems, motor control current and position sensing, optical encoder readout, medical instrumentation signal chains, vibration and acoustic analysis front ends, and high-precision weigh scales. The combination of 16-bit resolution and 600 kSPS throughput is well matched to multiplexed input modules and synchronous-sampling DSP front ends. Designers should place input RC anti-alias components close to the analog inputs and route the serial interface lines with controlled impedance to preserve 16-bit dynamic performance. The exposed thermal pad must be soldered to a top-layer copper pour of at least 1 square inch to keep junction temperature within the datasheet ratings under sustained sampling at 600 kSPS. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ADS8372IRHPR

ADS8372IRHPR - 16-Bit 600kHz SAR ADC | Texas Instruments

The Texas Instruments ADS8372IRHPR is a 16-bit, 600-kHz successive-approximation-register (SAR) analog-to-digital converter with a fully differential, pseudo-bipolar input, offered in a 28-pin 6x6 mm QFN (RHP) package. The device integrates an inherent sample-and-hold and delivers up to 600 ksamples per second with a high-speed CMOS serial interface supporting clock speeds up to 40 MHz. Operating from a single 5 V analog supply, it is specified over the industrial -40C to +85C temperature range and is suitable for industrial process control, data acquisition, and medical instrumentation. A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm implemented with a capacitive DAC to resolve an input voltage to N bits in N clock cycles. SAR ADCs are valued for their deterministic latency, excellent DC linearity, and low power consumption - attributes that position the ADS8372IRHPR between successive-approximation and high-speed pipeline converters in the broader data-converter hierarchy. The 'fully differential, pseudo-bipolar' input means the converter accepts a true differential signal swing (typically +/-VREF) referenced to a common-mode voltage, while sharing a single 5V supply rail. Key features of the ADS8372IRHPR include 16-bit no-missing-codes performance, a true differential input structure, an internal reference, low power consumption (typically 15 mW at 600 kSPS), and a compact 28-pin QFN footprint. The pseudo-bipolar input range allows the converter to digitize signals centered around a common-mode voltage without requiring a negative supply, simplifying system power architecture in single-supply 5 V designs. The device uses a charge-redistribution capacitive DAC architecture with an inherent track-and-hold front end. The 600 kSPS throughput is achieved using an internal 40 MHz conversion clock, and the SPI-compatible serial interface allows direct connection to microcontrollers, DSPs, and FPGAs with minimal glue logic. Internal calibration circuitry corrects integral and differential nonlinearity at power-up. Typical applications include industrial process control loops, multi-channel data acquisition systems, optical module monitoring, weigh-scale signal chains, and portable medical instrumentation. The 16-bit resolution and low integral nonlinearity make it well suited to closed-loop servo control and precision sensor readout. When designing with this converter, pay close attention to input common-mode voltage, reference decoupling, and the serial-interface timing. A 10 uF tantalum plus 0.1 uF ceramic bypass on AVDD and a 1 uF ceramic on the reference pin are recommended to achieve the datasheet SNR performance. The pseudo-bipolar input is not a true bipolar input and will not accept signals below ground. This page synthesizes distributor stock and pricing, same-brand drop-in alternatives, and application design notes that go beyond the manufacturer datasheet, giving engineers a single source for procurement and design-in decisions.

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ADS8372IRHPRG4

ADS8372IRHPRG4 - 16-Bit 600kHz SAR ADC | Texas Instruments

The Texas Instruments ADS8372IRHPRG4 is a 16-bit, 600-kHz successive-approximation-register (SAR) analog-to-digital converter with a fully differential, pseudo-bipolar input and a high-speed CMOS serial interface. It is housed in a 28-pin, 6 mm × 6 mm QFN (HVQCCN / RHP) package with an exposed thermal pad, and is characterized for the industrial -40 °C to +85 °C temperature range. Key headline specifications are 16-bit resolution, a 600 kSPS sampling rate (corresponding to roughly 1.16 µs conversion time per the partstack listing), ±0.0023 % integral linearity, and a 40 MHz maximum serial clock. A SAR (successive-approximation-register) ADC is a sub-category of data converter that performs a binary search through an internal capacitor-DAC array to converge on the input voltage in N clock cycles for N-bit resolution. SAR ADCs are prized for low latency, deterministic throughput, and excellent DC accuracy; in the data-converter taxonomy they sit alongside delta-sigma and pipeline converters as the dominant architectures for precision multi-channel and industrial applications. The ADS8372's fully differential pseudo-bipolar input is targeted at systems that need bipolar signal handling from a single supply. Differentiating features of the ADS8372IRHPRG4 include the inherent sample-and-hold front-end (no external track-and-hold needed), the high-speed serial SPI/QSPI/MICROWIRE-compatible interface (up to 40 MHz), an industrial-grade temperature range, and the compact QFN-28 footprint with thermal pad for improved heat extraction. The pseudo-bipolar input allows the converter to digitize signals that swing both above and below the common-mode voltage from a single analog supply, simplifying analog front-end design in industrial sensors, motor control, and instrumentation. At the architecture level, the device pairs a 16-bit capacitor-based SAR core with on-chip reference buffering and a precision input sampling network, giving designers a true 16-bit, no-missing-codes performance at 600 kSPS without external settling tricks. The 1.16 µs conversion time keeps acquisition latency low enough for closed-loop servo systems and multi-MUX data-acquisition front-ends where Nyquist-rate sampling must be deterministic. Typical applications include industrial process-control data acquisition boards, multi-channel sensor digitizers, motor-control current-sense feedback loops, optical encoder / resolver read channels, and precision instrumentation front-ends. In all of these, the 16-bit resolution and 600 kSPS throughput provide adequate dynamic range for 4-20 mA, ±10 V, and shunt-based current sensing. When designing with this device, observe the input common-mode voltage requirements of the pseudo-bipolar input stage and decouple the REFP/REFN pins with low-ESR ceramic capacitors placed as close to the package as possible, ideally over the exposed thermal pad for short return paths. This page synthesizes verified distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including comparison data against same-package alternatives and recommended companion ICs.

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ADS8380IBRHPRG4

ADS8380IBRHPRG4 - 18-Bit 600kSPS Serial ADC | Texas Instruments

The Texas Instruments ADS8380IBRHPRG4 is an 18-bit, 600-kSPS successive-approximation-register (SAR) analog-to-digital converter with a single-ended (pseudo-differential) input, an integrated reference, and a high-speed serial interface, housed in a 28-pin VQFN (RHP, 6x6 mm) exposed-pad package. The device delivers ±2 LSB typical linearity and accepts unipolar pseudo-differential analog inputs, making it well suited for high-precision industrial data-acquisition front ends. What is a SAR ADC? A successive-approximation-register analog-to-digital converter is a class of data converter that uses a binary search algorithm and a capacitive DAC to digitize an analog input one bit at a time per conversion clock. SAR ADCs offer an excellent balance of resolution, speed, and power consumption versus pipelined or delta-sigma converters, and they require no pipeline latency. In the system hierarchy, a SAR ADC sits between the analog signal-conditioning front end and the digital signal processor or microcontroller in a precision data-acquisition chain. Key features of the ADS8380IBRHPRG4 include a 600 kHz maximum sample rate, an integrated low-drift reference, a CMOS-compatible serial interface capable of up to 40 MHz clock speeds, an operating temperature range of -40C to +85C (industrial grade), and low power consumption typical of micropower SAR architectures. The integrated reference eliminates an external precision reference component, simplifying BOM and reducing PCB area. The pseudo-differential input structure rejects common-mode noise on the input signal when paired with proper driver circuitry. The ADS8380IBRHPRG4 uses a charge-redistribution capacitive DAC architecture with inherent sample-and-hold functionality, providing a true 18-bit resolution at full speed without throughput-dependent latency. The device is characterized for 18-bit no-missing-codes performance across the industrial temperature range, supporting robust operation in factory-floor and instrumentation environments. Typical applications include industrial process-control data acquisition, precision instrumentation and weigh scales, medical patient-monitoring front ends, optical module monitoring, and high-speed multiplexed data-acquisition systems. The integrated reference and small VQFN package also make it attractive for space-constrained designs such as portable test equipment. When designing with this part, ensure the input driver amplifier can settle the ADC's input within the acquisition window, and provide adequate bypass capacitance on AVDD/DVDD rails to achieve the rated SNR. The serial interface timing budget must support the full 40 MHz SCLK without violating the device's t_acq specification. This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet alone.

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ADS8380IRHPRG4

ADS8380IRHPRG4 - 18-Bit 600kSPS Pseudo-Diff SAR ADC | Texas Instruments

The Texas Instruments ADS8380IRHPRG4 is a high-performance 18-bit, 600-kHz analog-to-digital converter with a pseudo-differential (single-ended) input, housed in a 28-pin VQFN exposed-pad package. The -G4 suffix indicates a tape-and-reel lead-free finish that is RoHS compliant. The device integrates an 18-bit capacitor-based successive-approximation-register (SAR) ADC with inherent sample-and-hold and is specified for industrial temperature operation from -40C to +85C. It targets applications that demand high resolution and low power dissipation in a compact surface-mount footprint. An SAR ADC is a successive-approximation-register analog-to-digital converter. This architecture uses a binary-search algorithm against an internal precision DAC to digitize each sampled input in N conversion clock cycles for N bits of resolution. SAR ADCs are valued for their zero-latency behavior (a conversion result appears on the same cycle the sample is taken), deterministic throughput, and excellent DC accuracy, which makes them a staple for precision industrial, medical, and instrumentation signal chains where multi-MHz pipelined converters would be wasteful. Key features include 600-kSPS throughput, an unipolar pseudo-differential analog input, an internal conversion clock, and a high-speed CMOS serial interface capable of up to 40 MHz SCLK. The straight-binary data format simplifies downstream FPGA or microcontroller decoding, while the 28-VQFN exposed pad lowers thermal resistance for high-temperature-margin industrial designs. The part is micropower relative to its speed class and operates from a single analog supply, simplifying power-tree design. Typical applications include industrial process control, optical-module front ends, multi-channel data-acquisition boards, medical instrumentation, and high-speed precision sensors. The pseudo-differential input accepts a unipolar signal referenced to the converter common-mode, which simplifies input protection and signal conditioning in low-channel-count systems. For multi-channel designs, multiple ADS8380 devices can share a serial bus to scale channel count without expanding the FPGA pin budget. When designing with this device, follow the datasheet's reference-driver and input-filter recommendations to avoid degradation of the ADC's AC performance. Decouple AVDD with a 1uF ceramic plus a 0.1uF high-frequency bypass placed close to the supply pin, and stitch the exposed pad to a continuous ground pour for thermal relief and low-impedance return. The serial-interface timing budget at 40 MHz SCLK should be validated against the host controller's I/O timing to ensure reliable data capture at full 600-kSPS throughput.

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ADS8381IBPFBR

ADS8381IBPFBR - 18-Bit 580kHz SAR ADC | 48-TQFP | Texas Instruments

The Texas Instruments ADS8381IBPFBR is an 18-bit, 580-kHz successive-approximation analog-to-digital converter with parallel interface and unipolar input, housed in a 48-pin TQFP (PFB) package measuring 7x7 mm. It delivers 18-bit no-missing-code (NMC) performance guaranteed over the full industrial temperature range, zero pipeline latency typical of SAR architectures, and a low 115 mW power dissipation at the full 580 kHz throughput rate. The unipolar input range combined with an onboard reference buffer and conversion clock simplifies external analog design. A successive-approximation register (SAR) ADC is a type of data converter that performs a binary search through an internal capacitive DAC, producing a digital output in a fixed number of clock cycles with no pipeline delay. SAR ADCs belong to the broader category of Nyquist-rate analog-to-digital converters, which sit at the bottom of the data-converter hierarchy: ADC -> data converter -> signal chain IC -> mixed-signal semiconductor. They are valued for their single-shot accuracy, deterministic latency, and excellent DC linearity compared to delta-sigma or pipeline alternatives. Key features include 580 kHz sample rate, 18-bit NMC ensured over temperature, unipolar analog input, zero latency, internal reference buffer, internal conversion clock, and a wide 2.7V to 5.25V analog supply range. The parallel digital interface provides easy connection to microcontrollers, DSPs, and FPGAs without requiring a high-speed serial clock. Industrial temperature grade (-40C to +85C) and a small 7x7 mm TQFP footprint enable compact designs in dense signal-conditioning boards. Typical applications include medical instruments such as patient monitors and portable diagnostic equipment, optical networking line-side data acquisition, transducer interfaces for bridge and thermocouple front-ends, high-accuracy data acquisition systems, and magnetometer signal chains. The 580 kHz throughput comfortably digitizes multi-kHz bandwidth signals at 18-bit precision, while the 115 mW dissipation allows fan-less operation in sealed enclosures. When designing with this device, drive the analog input with a low-impedance, wide-bandwidth op-amp buffer such as the OPA227 or THS4631 to preserve linearity at the ADC's full-scale settling time. Provide a clean low-noise analog supply and decouple both AVDD and DVDD with 10uF bulk plus 0.1uF ceramic capacitors placed within 5 mm of the supply pins.

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ADS8381IPFBRG4

ADS8381IPFBRG4 - 18-Bit 580kHz SAR ADC, 48-TQFP | Texas Instruments

The Texas Instruments ADS8381IPFBRG4 is an 18-bit, 580 kSPS, unipolar-input, micropower successive-approximation analog-to-digital converter with a high-speed parallel interface, packaged in a 48-pin TQFP (PFB, 7x7 mm). It supports a single 5 V analog supply, an industrial temperature range of -40C to +85C, and features fully-differential pseudo-bipolar inputs that simplify front-end signal conditioning for unipolar sensor and instrumentation signals. What is a SAR ADC? A Successive Approximation Register analog-to-digital converter is a precision data-conversion architecture that resolves an analog input against an internal DAC using a binary search, producing one conversion per N clock cycles for N bits of resolution. SAR ADCs combine high resolution (typically 12-20 bits), deterministic low-latency conversion, and excellent DC accuracy, making them a cornerstone of the data-acquisition IC family alongside delta-sigma, pipeline, and flash architectures. They sit inside the broader category of data acquisition -> analog-to-digital converters -> precision converters -> signal chain ICs. Key features of the ADS8381 include 18-bit no-missing-codes performance, an internal reference, and a high-speed parallel output bus that streams conversion results directly to an FPGA, DSP, or microcontroller without requiring serialization. The device also integrates an input sample-and-hold, a flexible clock input, and hardware-friendly reset and conversion-start controls. From an architectural standpoint, the ADS8381 uses a charge-redistribution SAR core with internal input termination and a precision thin-film resistor network for the DAC, achieving low integral nonlinearity and low gain drift across temperature. The micropower design keeps total power consumption modest even at the full 580 kSPS throughput, and the parallel interface removes the overhead of bit-banging or clocking a serial converter from a host processor. Typical applications include industrial process control, multichannel data acquisition systems, medical instrumentation, optical sensor front ends, and portable or battery-powered measurement equipment that need 16-18 bit dynamic range without the latency or clocking complexity of a sigma-delta converter. When designing with this part, place a low-impedance 0.1 uF bypass ceramic close to the analog supply pin and provide a small RC anti-alias filter ahead of each input to limit out-of-band noise that would otherwise fold into the conversion band. This page synthesizes distributor pricing, drop-in package alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers evaluate the ADS8381IPFBRG4 against current SAR ADC options on the market.

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ADS8382IRHPR

ADS8382IRHPR - 18-bit 600kSPS SAR ADC | Texas Instruments

The Texas Instruments ADS8382IRHPR is an 18-bit, 600-kSPS successive-approximation-register (SAR) analog-to-digital converter with a fully differential pseudo-bipolar input, integrated sample-and-hold, and a high-speed CMOS serial interface capable of up to 40 MHz SCLK. It is housed in a 28-pin QFN (RHP) package, 6x6 mm, with an exposed thermal pad, and operates over the industrial -40C to +85C temperature range from a single 5-V analog supply. A SAR ADC is a precision data converter that uses a charge-redistribution capacitor array and a successive-approximation algorithm to digitize an analog input one bit per clock cycle. SAR converters sit within the broader taxonomy of analog-to-digital converters -> data converters -> signal-chain ICs -> mixed-signal ICs -> semiconductors. The pseudo-bipolar, fully differential input topology of the ADS8382 allows direct digitization of signals that swing around a common-mode voltage, which is useful for industrial sensors and instrumentation front-ends. Key headline specifications include 18-bit resolution, 600 kSPS sample rate, 1.16 microsecond conversion time, and 0.0019 percent integral nonlinearity (INL). The device supports both external and internal voltage references and provides a serial interface that simplifies board routing. Its micropower architecture balances throughput with low power dissipation, making it appropriate for multi-channel data-acquisition systems where channel density and thermal budget matter. The internal architecture is a capacitor-based SAR core with inherent track-and-hold, followed by a digital correction engine that achieves the specified linearity. The high-speed CMOS serial interface reduces pin count compared with parallel-output ADCs of the same speed class, leaving more board real-estate for analog front-end conditioning. The RHP-28 6x6 mm QFN package has a low thermal resistance suitable for the power level of a 600 kSPS SAR. Typical applications include industrial process control, multichannel data-acquisition boards, medical instrumentation such as patient monitors, optical sensor front-ends, and precision weigh scales. The serial interface is also convenient for isolated data-acquisition designs where galvanic isolation favors fewer digital traces. When designing with the ADS8382IRHPR, place the 0.1 microfar decoupling capacitor as close as possible to the AVDD pin and respect the reference decoupling topology recommended in the manufacturer datasheet. Designers should also consider using the ADS8382IRHPT (tape-and-reel variant) and ADS8382IBRHPR (extended temperature grade) as drop-in alternates within the same footprint. This page synthesizes distributor pricing, drop-in alternates, and practical design notes not found in the manufacturer datasheet alone.

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ADS8382IRHPR - 18-bit 600kSPS SAR ADC | Texas Instruments