ADS1230IPW

Overview

The ADS1230IPW is a precision 20-bit delta-sigma analog-to-digital converter (ADC) manufactured by Texas Instruments. It integrates a low-noise programmable gain amplifier (PGA) with selectable gains of 64 or 128, supporting full-scale differential inputs of ±39mV or ±19.5mV respectively. The device operates on a single supply voltage ranging from 2.7 V to 5.3 V for both analog and digital domains. It offers two data rates: 10 SPS with 50/60 Hz line frequency rejection and 80 SPS. The component utilizes an external reference voltage up to 5 V and communicates via a serial interface compatible with SPI. It is housed in a TSSOP-16 package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated low-noise PGA with hardware-selectable gain settings for high-resolution bridge sensor interfacing
• Built-in digital filter providing selectable 50 Hz and 60 Hz rejection capabilities
• Hardware-controlled configuration without the need for complex register programming
• Low power consumption suitable for battery-operated weighing scale applications

Applications

• High-precision resistive bridge sensors such as strain gauges
• Weighing scales and industrial load cell measurements
• Pressure sensor signal conditioning
• Precision measurement instruments requiring high resolution

Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required packaging format, such as tube or reel, as indicated in the official product selection guide. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process before finalizing procurement.

Selection Notes

Select this component when a single-channel, high-resolution conversion is required for bridge-based transducers. Consider the PGA gain options based on the expected input signal amplitude to maximize dynamic range. Verify that the system clock source aligns with the desired output data rate and noise performance requirements. Ensure the external reference voltage meets the stability and accuracy needs of the application.

Part Context

The ADS1230 belongs to the ADS123x family of delta-sigma ADCs designed specifically for weigh scale and industrial sensor applications. It shares architectural similarities with other members like the ADS1231 and ADS1232 but differs in channel count and specific feature sets. This model represents a cost-effective solution for applications demanding 20-bit resolution with integrated signal conditioning.

Replacement Considerations

Check for ADS1230IPWR for reel-packaged equivalents. Evaluate ADS1231 or ADS1232 if additional channels or different pinouts are acceptable. Verify pin compatibility and software register maps if migrating between closely related models in the same series.