ADS1282IPW

Overview

The ADS1282IPW is a dual-channel, ultra-high-resolution delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a 31-bit resolution and supports differential input signals with an integrated programmable gain amplifier (PGA). The device utilizes an SPI interface for data communication and operates with separate analog and digital power supplies ranging from 4.75 V to 5.25 V and 1.65 V to 3.6 V, respectively. It achieves a maximum sampling rate of 4 kS/s and delivers a signal-to-noise ratio (SNR) of 130 dB. Key linearity specifications include a differential nonlinearity (DNL) of +/- 1 LSB and an integral nonlinearity (INL) of 0.0004% FSR. The component is housed in a 28-pin TSSOP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-high resolution delta-sigma architecture providing precise signal conversion capabilities
• Integrated programmable gain amplifier allowing flexible input signal conditioning
• Low power consumption design suitable for energy-constrained applications

Applications

• Seismic data acquisition systems requiring high channel count and precision
• Medical imaging equipment such as ultrasound scanners
• Industrial process control and monitoring instrumentation

Procurement Notes

Verify the specific ordering suffix to ensure the correct package type and tape-and-reel configuration match your assembly requirements. Confirm that the external reference voltage source meets the specified accuracy and noise performance standards to maintain the ADC's high-resolution integrity during operation.

Selection Notes

Select this component when dual-channel, high-precision data acquisition is required with minimal external signal conditioning. Ensure the system design accommodates the separate analog and digital supply voltages and provides adequate filtering for the external reference input to optimize the signal-to-noise ratio.

Part Context

The ADS1282IPW belongs to the ADS1282 series of delta-sigma ADCs designed for multi-channel applications. It shares architectural similarities with other devices in the family but is distinguished by its specific pinout, resolution, and integration level tailored for high-density data acquisition systems.

Replacement Considerations

ADS1282IPWR: Same functional specifications with a tape-and-reel packaging format instead of tube packaging.