ADS1202IPWR

Overview

The ADS1202IPWR is a single-channel, 16-bit sigma-delta analog-to-digital converter (ADC) manufactured by Texas Instruments. It integrates a programmable gain amplifier and an internal reference voltage source within a compact TSSOP-8 package. The device operates on a single supply voltage ranging from 4.5 V to 5.5 V for both analog and digital domains. It supports data rates up to 40 kS/s with a differential input structure. Key performance metrics include a signal-to-noise ratio of 70.5 dB at lower output data rates, a power consumption of 30 mW, and integral nonlinearity specified at +/- 12 LSB.

Feature Summary

• Integrated 16-bit sigma-delta ADC with internal oscillator and reference
• Programmable gain amplifier supporting direct connection to current shunts
• 3-wire serial interface compatible with standard microcontrollers
• Low power consumption of 30 mW with operating temperature range of -40°C to +85°C

Applications

• Current shunt measurement in industrial automation
• High-resolution weighing scale systems
• Process control instrumentation requiring isolated or grounded shunt sensing
• Medical equipment utilizing low-power signal acquisition

Procurement Notes

Verify the specific suffix 'IPWR' corresponds to the TSSOP-8 surface-mount package and tape-and-reel shipping configuration. Confirm RoHS compliance status through the manufacturer's official documentation, as indicated by detailed RoHS information in supplier listings. Ensure the order quantity aligns with the factory reel packaging specifications provided by Texas Instruments.

Selection Notes

Select the ADS1202IPWR when a single-channel, high-speed 16-bit conversion is required without external components. The internal oscillator eliminates the need for an external clock source. Compare against the ADS1202IPWT variant if cut-tape packaging is preferred over reel quantities. Consider the ADS1230 or ADS1242 series if higher resolution or additional channels are necessary for the application.

Part Context

This component belongs to the ADS1202 family of delta-sigma ADCs designed for precision measurement applications. The IPWR designation identifies the industrial temperature grade version housed in an 8-pin Thin-Shrink Small Outline Package (TSSOP). It serves as a complete data acquisition system solution by integrating the modulator, PGA, and reference on a single die.

Replacement Considerations

The ADS1202IPWT is a pin-compatible alternative differing only in packaging format (cut tape vs. reel). For multi-channel requirements, the ADS1242 offers four channels but requires an external reference. Single-channel upgrades may consider the ADS1230 for 20-bit resolution at slower speeds.