ADS1148IPW

Analog To Digital Converters (ADC) Overview

The ADS1148IPW is a 16-bit analog-to-digital converter (ADC) from Texas Instruments, housed in a 28-pin TSSOP package. It utilizes a sigma-delta architecture with a maximum sampling rate of 2 kS/s. The device supports differential and single-ended inputs via an integrated multiplexer. Power supply voltages for both analog and digital sections range from 2.7 V to 5.25 V. Key specifications include a differential nonlinearity (DNL) and integral nonlinearity (INL) of +/- 1 LSB. It features an internal oscillator, programmable gain amplifier (PGA), and excitation current sources (iDACs). The operating temperature range extends from -40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated precision sensor interface featuring programmable gain amplifiers and excitation current sources for direct transducer connection.
• High-resolution 16-bit data conversion with sigma-delta modulation ensuring low noise performance and linearity.
• Flexible input configuration supporting multiple differential or single-ended channels through an internal multiplexer.
• Built-in 50/60 Hz rejection capabilities to minimize power line interference in measurement applications.

Analog To Digital Converters (ADC) Applications

• Precision temperature sensing systems utilizing thermocouples or RTDs.
• Industrial process control instrumentation requiring high accuracy.
• Strain gauge and load cell measurement interfaces.
• Medical diagnostic equipment demanding low-noise signal acquisition.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm packaging type, as IPW denotes tube packaging while other suffixes may indicate reel formats. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the ordering part number matches the exact pinout and electrical characteristics defined in the latest datasheet revision to avoid integration errors.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing systems that require 16-bit resolution with simultaneous 50/60 Hz rejection. Consider the integrated PGA and iDACs if minimizing external passive components is a priority. Evaluate the SPI interface compatibility with the host microcontroller. Verify that the 28-TSSOP package dimensions fit the available PCB real estate and thermal constraints.

Analog To Digital Converters (ADC) Part Context

The ADS1148IPW belongs to the ADS114x family of precision ADCs designed for sensor measurements. It shares architectural similarities with models like the ADS1146 and ADS1147 but offers specific channel counts and feature sets tailored for different complexity levels. This part serves as a bridge between analog sensors and digital processing units in high-accuracy applications.

Analog To Digital Converters (ADC) Replacement Considerations

Check for ADS1148IPWR for identical electrical specifications in reel packaging. Review ADS1146 and ADS1147 variants for potential pin-compatible alternatives with differing channel counts or feature subsets within the same family.