ADS8688IDBTR Analog To Digital Converter Integrated Circuit IC Chip ADC 16bit SAR TSSOP38

ADS8688IDBTR IC Integrated Circuit Analog To Digital Converteric ADC 16bit SAR TSSOP38

Applications

• Power Automation

• Protection Relays

• PLC Analog Input Modules

Specifications

Description

The ADS8684 and ADS8688 are 4- and 8-channel, integrated data acquisition systems based on a 16-bit successive approximation (SAR) analog-to-digital converter (ADC), operating at a throughput of 500-kSPS. The devices feature integrated analog front-end circuitry for each input channel with overvoltage protection up to ±20 V, a 4- or 8-channel multiplexer with automatic and manual scanning modes, and an on-chip, 4.096-V reference with low temperature drift. Operating on a single 5-V analog supply, each input channel on the devices can support true bipolar input ranges of ±10.24 V, THD: –102 dB ±5.12 V, and ±2.56 V, as well as unipolar input ranges of 0 V to 10.24 V and 0 V to 5.12 V. The gain of the analog front-end for all input ranges is accurately trimmed to ensure a high dc precision. The input range selection is software-programmable and independent for each channel. The devices offer a 1-MΩ constant resistive input impedance irrespective of the selected input range. Simplified Block Diagram

The ADS8684 and ADS8688 offer a simple SPIcompatible serial interface to the digital host and also support daisy-chaining of multiple devices. The digital supply operates from 1.65 V to 5.25 V, 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 Input Ranges:

– Bipolar: ±10.24 V, ±5.12 V, ±2.56 V

– Unipolar: 10.24 V, 5.12 V

• 5-V Analog Supply: 1.65-V to 5-V I/O Supply

• Constant Resistive Input Impedance: 1 MΩ

• Input Overvoltage Protection: Up to ±20 V

• On-Chip, 4.096-V Reference with Low Drift

• Excellent Performance:

– 500-kSPS Aggregate Throughput

– DNL: ±0.5 LSB; INL: ±0.75 LSB

– Low Drift for Gain Error and Offset

– SNR: 92 dB; THD: –102 dB

– Low Power: 65 mW

• AUX Input → Direct Connection to ADC Inputs

• Industrial Temperature Range: –40°C to 125°C

• TSSOP-38 Package (9.7 mm × 4.4 mm)

Trading Guides

Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013, specializing in electronic components distribution business.The products are widely used in communication equipment, power supply, medical electronics, automotive electronics, digital electronics, industrial electronics, display modules, intelligent electronics, new energy, the Internet of things, 5G productsand other fields，With high-quality products, reasonable prices, rapid distributionand timely service, we can provide customers with the most cost-effective products and save customers a lot of time.