ADS1146IPWR

Analog To Digital Converters (ADC) Overview

The ADS1146IPWR is a 16-bit analog-to-digital converter (ADC) from Texas Instruments, housed in a 16-TSSOP surface-mount package. It features a single-channel sigma-delta architecture with a maximum sampling rate of 2 kS/s. The device supports both single-ended and differential input types via an integrated programmable gain amplifier (PGA). It operates on analog and digital supply voltages ranging from 2.7 V to 5.25 V. Key performance metrics include a differential nonlinearity (DNL) and integral nonlinearity (INL) of +/- 1 LSB. The component consumes 2.3 mW of power and functions within a temperature range of -40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a low-noise programmable gain amplifier (PGA) to amplify weak sensor signals before conversion.
• Includes internal digital filters capable of providing 50 Hz and 60 Hz line frequency rejection.
• Features an internal oscillator and dedicated temperature sensor for system monitoring.
• Supports external reference inputs to enhance overall converter accuracy.

Analog To Digital Converters (ADC) Applications

• Precision temperature sensing applications requiring high-resolution data acquisition.
• Industrial measurement systems utilizing thermocouples or RTDs.
• Low-power battery-operated instrumentation devices.
• Data acquisition circuits where noise rejection and signal conditioning are critical.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm pinout and electrical specifications match the design requirements. Ensure the ordering information aligns with the desired packaging format, such as tape and reel quantities. Cross-reference the RoHS compliance status and moisture sensitivity level with project constraints. Confirm that the supplier provides valid traceability documentation for quality assurance purposes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, 16-bit resolution is sufficient for the application. Consider the ADS1146IPWR if the design requires an integrated PGA to reduce external component count. Evaluate the 2 kS/s sampling rate against the required bandwidth. Compare against higher-resolution alternatives like the ADS1246 series if greater precision is needed, or simpler ADCs if cost reduction is the primary driver.

Analog To Digital Converters (ADC) Part Context

The ADS1146IPWR belongs to the ADS114x family of 16-bit, 2-kSPS analog-to-digital converters designed for sensor measurements. This family includes variants such as the ADS1147 and ADS1148, which offer different channel counts or feature sets. These devices are engineered to lower system costs by integrating signal conditioning components directly onto the silicon die.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS1147IPWR serves as a functional substitute within the same family, offering similar 16-bit performance but potentially differing in channel configuration or specific interface capabilities. Verify pin compatibility and register mapping before substitution.