ADS7890IPFBT

Analog To Digital Converters (ADC) Overview

The ADS7890IPFBT is a 14-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It operates with a single 5V analog supply and a digital supply ranging from 2.7V to 5.25V. The device features a pseudo-differential input architecture and delivers a sampling rate of up to 3MSPS. It is housed in a 48-lead TQFP package with dimensions of 7mm x 7mm, suitable for surface-mount installation. The component supports an external or internal reference configuration and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• High-speed 14-bit resolution with 3MSPS sampling capability
• Single 5V analog power supply operation
• Pseudo-differential input structure for improved noise rejection
• Flexible reference selection supporting both external and internal sources

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-speed data acquisition
• Portable instrumentation benefiting from low power consumption
• Medical equipment utilizing precise signal conversion
• Automotive sensor interfaces operating in harsh environments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'IPFBT' corresponds to the 48-TQFP package and reel packaging format. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for any product change notices or end-of-life announcements affecting long-term availability. Ensure the ordering part number matches the required voltage and temperature specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution and 3MSPS speed are required with a single 5V analog supply. Compare against the ADS7891 if 16-bit resolution is needed, noting the trade-off in speed and pin count. Consider the ADS7890's pseudo-differential inputs versus fully differential alternatives if common-mode noise rejection is critical. Verify that the 48-TQFP footprint fits the PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

The ADS7890 belongs to Texas Instruments' family of high-speed, low-power SAR ADCs. It shares architectural similarities with the ADS7891 but offers lower resolution (14-bit vs 16-bit). The IPFBT designation indicates the plastic TQFP package variant. This series is designed for applications balancing speed, accuracy, and power efficiency in compact form factors.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7891IPFBT is a compatible alternative offering 16-bit resolution at a slightly lower maximum sampling rate. Both devices share the same 48-TQFP package and similar supply requirements. Verify interface compatibility and pinout alignment before substitution.