ISL26134AVZ-T7A

Analog To Digital Converters (ADC) Overview

The ISL26134AVZ-T7A is a low-noise, 24-bit Sigma-Delta analog-to-digital converter (ADC) manufactured by Renesas Electronics. It features four differential input channels and communicates via an I2C interface. The device operates with a 5 V analog supply and a 3.3 V digital supply, supporting sampling rates up to 80 S/s. Key performance metrics include a signal-to-noise ratio of 70.9 dB, gain error of 0.02% FSR, and integral nonlinearity of 0.001% FSR. It functions within a temperature range of -40°C to +105°C and is housed in a TSSOP-28 package.

Analog To Digital Converters (ADC) Feature Summary

• Four-channel differential input architecture for multi-sensor applications
• Low-noise Sigma-Delta conversion structure optimized for precision measurements
• I2C serial interface for simplified system integration
• External reference capability for flexible voltage scaling

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution data acquisition
• Portable instrumentation utilizing low-power operation
• Weight scales and load cell measurement interfaces
• Medical equipment demanding high accuracy and low noise

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'T7A' against the manufacturer's current datasheet to confirm tape-and-reel packaging specifications. Ensure compatibility with the required I2C bus speeds and check for any recent product discontinuation notices from Renesas, as older Intersil-branded components may have limited availability or end-of-life status.

Analog To Digital Converters (ADC) Selection Notes

Select this component when four isolated differential inputs are necessary within a single package. Compare the 80 S/s maximum data rate against application requirements to ensure sufficient throughput. Verify that the external reference pin can accommodate the desired reference voltage source, as internal references are not integrated in this specific model.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ISL2613x family of low-noise ADCs, which also includes models like the ISL26132 and ISL26102. These devices share similar Sigma-Delta architectures but differ in channel counts and interface options. The ISL26134 specifically provides four channels, distinguishing it from dual-channel variants in the same series.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the ISL26132, though it offers only two channels instead of four. Other potential replacements may include the AD7731 from Analog Devices, which shares similar resolution and noise characteristics but utilizes a different serial interface protocol.