ADS8885IDGS

Analog To Digital Converters (ADC) Overview

The ADS8885IDGS is a single-channel, 18-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a maximum sampling rate of 400 kSPS and features a truly differential input architecture. The device utilizes an internal oscillator and supports daisy-chain connectivity via its SPI interface. Power consumption is specified at 2.6 mW, with an analog supply voltage range of 2.7 V to 3.6 V and a digital supply range of 1.65 V to 3.6 V. It achieves a signal-to-noise ratio of 100 dB and a SINAD of 99.9 dB. The component is housed in a 10-lead MSOP package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Features a truly differential input structure for improved noise rejection.
• Integrates an internal oscillator to reduce external component count.
• Supports daisy-chainable operation for multi-channel system expansion.

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation
• Industrial process control systems
• Battery-powered data acquisition devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix to confirm the packaging format, as the IDGS designation indicates tube packaging distinct from tape-and-reel variants. Confirm that the required reference voltage matches the external reference type specification. Ensure the design accounts for the humidity sensitivity level indicated in the datasheet during storage and assembly processes.

Analog To Digital Converters (ADC) Selection Notes

Select this model when an 18-bit resolution and 400 kSPS throughput are required in a compact surface-mount form factor. Compare against the ADS8887 if a lower sampling rate of 100 kSPS with reduced power consumption is sufficient for the application. Consider the ADS8885IDRCR variant if a smaller VSON-10 package is preferred over the MSOP-10 footprint.

Analog To Digital Converters (ADC) Part Context

This component belongs to the Texas Instruments microPOWER ADS8885 series, designed for low-power, high-resolution applications. It shares architectural similarities with the ADS8881 and ADS8887 models but offers a specific balance between speed and power dissipation. The series targets applications requiring precise signal conversion in space-constrained environments.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8885IDGSR serves as the tape-and-reel equivalent of this part number. For lower-speed requirements, the ADS8887IDGS provides a compatible pinout with reduced sampling performance. Verify pin compatibility before substituting with other SAR ADCs in the same family.