16-bit, 500-kSPS, eight-channel, single-supply SAR ADC with ±12-V differential inputs The ADS8684W and ADS8688W are 4-channel and 8-channel, integrated data acquisition systems based on a 16-bit successive approximation (SAR) analogto-digital converter (ADC), operating at a throughput of 500kSPS. The devices feature integrated analog front-end circuitry for each input channel with overvoltage protection up to ±20V, a 4-channel or 8-channel multiplexer with automatic and manual scanning modes, and an on-chip, 4.096V reference with low temperature drift. Operating on a single 5V analog supply, each input channel on the devices can independently support bipolar input ranges of ±12.288V, ±6.144V, and ±3.072V and unipolar input ranges of 12.288V to 0V and 6.144V to 0V. The ADS8684W and ADS8688W offer a simple SPIcompatible serial interface to the digital host and also support daisy-chaining of multiple devices. The digital supply operates from 1.65V to 5.25V, enabling direct interface to a wide range of host controllers Features • 16-Bit ADCs with Integrated Analog Front-End • 4-, 8-Channel MUX with Auto and Manual Scan • Channel-Independent Programmable Inputs: – ±12.288V, ±6.144V, and ±3.072V – 12.288V to 0V and 6.144V to 0V • 5V Analog Supply: 1.65V to 5V I/O Supply • Constant Resistive Input Impedance: 1.2MΩ • Input Overvoltage Protection: Up to ±20V • On-Chip, 4.096V Reference with Low Drift • Excellent Performance: – 500kSPS Aggregate Throughput – DNL: ±0.6LSB; INL: ±0.8LSB – Low Drift for Gain Error and Offset – SNR: 91.5dB; THD: –102dB – Low Power: 65mW • AUX Input → Direct Connection to ADC Inputs • ALARM → High and Low Thresholds per Channel • SPI™-Compatible Interface with Daisy-Chain • Industrial Temperature Range: –40°C to 125°C #commonpartslibrary #ADS8688W #TexasInstruments #ADC #SARADC #DataAcquisition #IndustrialAutomation #SPI #PrecisionADC #AnalogFrontEnd #EmbeddedSystems #MeasurementSystems

USB-A (USB TYPE-A) USB 2.0 Receptacle Connector 4 Position Through Hole, Right Angle The ADS1256IDBT is a high-precision, low-noise, 24-bit analog-to-digital converter manufactured by Texas Instruments. It is designed for high-resolution measurement applications requiring exceptional accuracy, low drift, and programmable data rates. The device integrates a low-noise programmable gain amplifier, a precision delta-sigma ADC core, and a flexible multiplexer that supports multiple differential or single-ended analog inputs. The converter is optimized for industrial process control, sensor measurement, weigh scales, data acquisition systems, temperature monitoring, and portable instrumentation. Its integrated digital filtering and selectable gain settings enable direct interfacing with low-level sensors such as strain gauges, thermocouples, RTDs, and bridge sensors without requiring extensive external signal conditioning. The ADS1256IDBT supports SPI-compatible serial communication and operates with low power consumption while maintaining excellent dynamic performance and high effective resolution. The device provides programmable output data rates suitable for both low-speed precision measurements and higher-speed acquisition systems. Device Features 24-bit delta-sigma analog-to-digital converter Low-noise programmable gain amplifier Eight single-ended or four differential analog input channels Programmable gain settings from 1 to 64 Programmable data output rates SPI-compatible serial interface Integrated digital filter for noise reduction Low offset drift and gain drift Internal oscillator support Sensor burnout detection capability Self-calibration and system calibration functions Low power operation Wide analog supply voltage range Excellent 50 Hz and 60 Hz rejection performance Electrical Characteristics Resolution of 24 bits Maximum data rate up to 30 kSPS Differential input architecture Input multiplexer for multi-channel acquisition Low RMS noise performance High common-mode rejection ratio High power-supply rejection ratio Programmable gain amplifier integrated on-chip Internal reference support with external reference capability Interface and Control SPI-compatible digital communication interface Configurable control registers Read and write register functionality Synchronization and standby control support Hardware reset capability Interrupt and data-ready signaling support Package Information Manufacturer package designation: DBT Package type: TSSOP Surface-mount device Fine-pitch lead configuration Industrial temperature grade device Applications Precision data acquisition systems Industrial automation and control Weigh scales and bridge sensors Temperature measurement systems Pressure sensing applications Portable instrumentation Medical instrumentation Laboratory measurement equipment Energy monitoring systems Process monitoring and control Manufacturer Information Manufacturer: Texas Instruments Manufacturer Part Number: ADS1256IDBT Product Category: Precision Analog-to-Digital Converter RoHS compliant device #commonpartslibrary #integratedcircuit #analog #adc #deltasigma #precisionadc #sensorinterface #dataacquisition #industrialautomation #instrumentation #signalconditioning #texasinstruments #spiinterface #mixedsignal #measurementsystems