ADS1287IRHFR

Analog To Digital Converters (ADC) Overview

The ADS1287IRHFR is a dual, simultaneous-sampling analog-to-digital converter manufactured by Texas Instruments. It features a sigma-delta architecture with 24-bit resolution and supports sampling rates up to 1000 SPS per channel. The device integrates a programmable gain amplifier (PGA) with gains ranging from 1 to 128. It operates on a single 2.7 V to 5.5 V supply and communicates via an SPI-compatible serial interface. The component is housed in a 28-pin HTQFP package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel simultaneous sampling capability for synchronized data acquisition
• Integrated programmable gain amplifier supporting gains from 1 to 128
• High-resolution 24-bit sigma-delta conversion architecture
• Low-power operation suitable for battery-powered applications

Analog To Digital Converters (ADC) Applications

• Portable medical devices such as ECG and EEG systems
• Industrial process control and monitoring
• Seismic data acquisition systems
• Weight scales and force measurement instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IRHFR corresponds to the 28-pin HTQFP package and tape-and-reel shipping configuration. Confirm that the operating voltage requirements align with the system design, as the device accepts supplies between 2.7 V and 5.5 V. Ensure compatibility with the target microcontroller's SPI interface timing and voltage levels before integration.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling of two differential channels is required at high resolution. The integrated PGA reduces the need for external amplification stages. Consider the 1000 SPS maximum rate against application bandwidth needs. Verify that the 28-pin HTQFP footprint fits the PCB layout constraints compared to other available packages in the ADS128x family.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS128x series of precision analog-to-digital converters designed for low-noise, high-resolution applications. It shares architectural similarities with the ADS1283 and ADS1286 but offers dual-channel simultaneous sampling unlike the single-channel ADS1283. The device is optimized for sensor interfaces requiring precise signal conditioning and digitization.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS1287D serves as a pin-compatible alternative in different packaging. For single-channel requirements, the ADS1283 may be considered if simultaneous sampling is not needed. Higher performance options include the ADS1278 or ADS1286 families depending on speed and channel count requirements.