ISL26132AVZ-T

Analog To Digital Converters (ADC) Overview

The ISL26132AVZ-T is a low-noise, 24-bit Delta-Sigma Analog-to-Digital Converter (ADC) designed for high-resolution measurement applications. It integrates a third-order modulator and a programmable-gain amplifier (PGA) with gains of 1x, 2x, 64x, and 128x. The device features two differential multiplexer inputs and offers noise-free performance up to 21.6 bits. It supports conversion rates of 10 Sps and 80 Sps, with improved noise performance at these speeds. The input range at 128x gain is ±9.766mVFS using a 2.5V reference. It operates from an external clock, crystal (typically 4.9152MHz), or on-chip oscillator. The component is housed in a 24-lead TSSOP package and is specified for the automotive temperature range of -40°C to +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a very low-noise amplifier with programmable gain settings for direct sensor connection.
• Features a third-order Delta-Sigma modulator providing high-resolution digital output.
• Includes a two-channel differential multiplexer for flexible input configuration.
• Offers multiple clocking options including external sources, crystals, and an internal oscillator.

Analog To Digital Converters (ADC) Applications

• Direct connection to load cell bridges without additional circuitry.
• High-resolution industrial measurement systems requiring low noise.
• Automotive sensing applications within the specified temperature range.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the voltage grade 'A' matches the required operating temperature range of -40°C to +105°C. Ensure the manufacturer designation aligns with current Renesas Electronics Corporation documentation, as Intersil assets have been transferred. Check for any recent Product Change Notices regarding pinout or electrical specifications before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring 24-bit resolution with low noise at moderate data rates. Compare against the ISL26134 if four channels are needed, noting the package difference between 24-lead TSSOP and 28-lead TSSOP. Consider the ADS1232/ADS1234 compatibility if migrating from Analog Devices designs. Verify that the input signal range fits within the PGA capabilities, particularly at the 128x gain setting which limits the input to approximately ±9.766mVFS with a 2.5V reference.

Analog To Digital Converters (ADC) Part Context

The ISL26132 is part of the ISL2613x family of low-noise ADCs, which also includes the four-channel ISL26134. These devices were originally developed by Intersil and are now managed by Renesas Electronics. They are functionally compatible with Analog Devices ADS1232 and ADS1234 devices, sharing similar pinouts. The series is designed to replace older precision ADC solutions in high-performance measurement environments.

Analog To Digital Converters (ADC) Replacement Considerations

The ISL26134 serves as the four-channel variant within the same family. For direct functional replacement in existing designs, the Analog Devices ADS1232 is cited as compatible due to identical pinouts. Verify package dimensions and thermal characteristics when substituting with other 24-lead TSSOP components.