ADS1259IPW

Overview

The ADS1259IPW is a low-noise, 24-bit analog-to-digital converter (ADC) manufactured by Texas Instruments. It utilizes a sigma-delta architecture and features a single differential input channel with an integrated programmable gain amplifier (PGA). The device supports data rates up to 14.4 kSPS and operates with an analog supply voltage range of 4.75 V to 5.25 V and a digital supply range of 2.7 V to 5.25 V. It communicates via an SPI interface and is housed in a 20-TSSOP package. Key electrical specifications include an integral nonlinearity (INL) of 0.0003% FSR, power dissipation of 1.2 mW, and operation within a temperature range of -40°C to +105°C.

Feature Summary

• Integrated low-noise PGA with selectable gain settings for direct sensor interfacing
• Built-in internal oscillator and 50/60 Hz rejection capabilities for noise suppression
• Dual power supply design allowing independent analog and digital voltage domains

Applications

• Industrial process control systems requiring high-precision signal acquisition
• Portable battery-powered instrumentation and meters
• Medical equipment such as ECG and EEG front-end modules
• Seismology and geophone monitoring instruments

Procurement Notes

Verify the specific suffix IPW corresponds to the TSSOP-20 tube packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates prior to procurement. Ensure the ordering part number matches the required package style and temperature grade to avoid integration errors during assembly.

Selection Notes

Select this component for applications demanding high resolution and low noise performance without external amplification. The integrated PGA simplifies circuit design by accommodating small signal inputs directly. Consider the 14.4 kSPS maximum sampling rate and SPI interface compatibility when designing the system architecture and microcontroller selection.

Part Context

This device belongs to the ADS1259 series of precision data converters designed for high-performance measurement applications. It serves as a specialized solution for converting analog signals from sensors into digital data with minimal external component requirements. The series emphasizes low power consumption and high accuracy for demanding industrial and scientific environments.

Replacement Considerations

The ADS1259IPWR is the reel-packaged equivalent of this component, offering identical electrical characteristics and functionality. Verify that the change in packaging format aligns with automated assembly requirements if transitioning between tube and reel formats.