ADS8689IPW

Analog To Digital Converters (ADC) Overview

The ADS8689IPW is a 16-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a single pseudo-differential or single-ended input channel with a sampling rate of 100 kSPS. The device integrates a programmable gain amplifier, sample-and-hold circuit, and an internal 4.096 V reference. It operates on a 5 V analog supply and a digital supply ranging from 1.65 V to 5.25 V. Key performance metrics include a signal-to-noise ratio of 92 dB, differential nonlinearity of ±0.4 LSB, and integral nonlinearity of ±0.5 LSB. It utilizes an SPI-compatible interface and is housed in a 16-TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated analog front-end with software-programmable bipolar and unipolar input ranges
• High input impedance of 1 MΩ with overvoltage protection up to ±20 V
• Low power consumption of 21 mW with extended industrial temperature range

Analog To Digital Converters (ADC) Applications

• Industrial process control systems
• Analog input modules for PLCs
• Semiconductor test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IPW corresponds to the 16-TSSOP tube packaging configuration. Confirm RoHS3 compliance status as indicated in distributor documentation. Ensure the ordering part number matches the exact pinout and marking requirements for your PCB layout. Cross-reference the datasheet revision date to confirm feature consistency.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, high-precision 16-bit conversion at 100 kSPS is required. It is suitable for applications needing integrated overvoltage protection and programmable input ranges without external signal conditioning. Consider alternative ADS868x variants if higher throughput or multi-channel multiplexing capabilities are necessary.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADS868x family of 16-bit SAR ADCs from Texas Instruments. The series includes ADS8681 (1 MSPS), ADS8685 (500 kSPS), and ADS8689 (100 kSPS). All members share similar architectural features, including integrated analog front-ends and low-drift references, differing primarily in maximum sampling rates.

Analog To Digital Converters (ADC) Replacement Considerations

ADS8685IPW: Higher speed variant (500 kSPS) with identical pinout and features. ADS8681IPW: Highest speed variant (1 MSPS) with identical pinout and features.