ADS7881IPFBT

Analog To Digital Converters (ADC) Overview

The ADS7881IPFBT is a 12-bit, 4-MSPS successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It features a parallel digital interface and operates with a digital supply voltage range of 2.7V to 5.25V and an analog supply voltage of 5V. The device integrates an internal reference and is housed in a 48-lead Thin Quad Flatpack (TQFP) package. Key electrical specifications include a maximum conversion time of 0.25 µs and a linear error of 0.0977%. It supports pseudo-bipolar or fully differential input configurations and functions within an operating temperature range of -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with a high sampling rate of 4 MSPS
• Integrated internal reference voltage source
• Parallel digital output interface for direct microcontroller connection
• Low power consumption suitable for battery-operated systems

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation
• Industrial process control systems
• Data acquisition systems requiring high speed and moderate resolution

Analog To Digital Converters (ADC) Part Context

The ADS7881 belongs to the ADS788x family of low-power SAR ADCs from Texas Instruments. This series includes variants such as the ADS7882 and ADS7883, which offer similar performance characteristics but may differ in pinout or specific feature sets. The IPFBT suffix indicates a TQFP package with tape-and-reel packaging.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the ADS7881IPFBR, which shares identical electrical specifications but utilizes a different packaging format (tray vs. tape-and-reel). Designers should verify pin compatibility and thermal requirements when substituting components.