ISL26134AVZ

Analog To Digital Converters (ADC) Overview

The ISL26134AVZ is a low-noise, 24-bit Analog-to-Digital Converter (ADC) from the ISL26134 series, manufactured by Renesas Electronics. It features four differential inputs and utilizes a Sigma-Delta architecture with an on-chip programmable gain amplifier. The device supports I2C serial interface communication and offers selectable data rates up to 80 S/s. It operates with a 5 V analog supply and a 3.3 V digital supply, functioning within a temperature range of -40°C to +105°C. Key performance metrics include a gain error of 0.02% FSR, integral nonlinearity of 0.001% FSR, and power dissipation of 68 mW. The component is housed in a TSSOP-28 package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a low-noise programmable gain amplifier with gains ranging from 1 to 128 for direct sensor connection.
• Provides high-resolution 24-bit conversion using a third-order Delta-Sigma modulator structure.
• Features a simple-to-use I2C serial interface for system integration.

Analog To Digital Converters (ADC) Applications

• Weigh scales
• Temperature monitors and controls
• Load safety systems
• Industrial process control
• Pressure sensors

Analog To Digital Converters (ADC) Procurement Notes

Verify current availability status as the ISL26134AVZ may be discontinued or subject to limited distribution channels. Confirm RoHS compliance details and moisture sensitivity levels prior to procurement. Ensure compatibility with existing I2C bus configurations and verify that the TSSOP-28 package dimensions align with the target PCB layout requirements for successful implementation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high precision and low noise are required for multi-channel differential signal acquisition. The integrated PGA reduces external circuitry needs for low-level signals. Consider the 80 S/s maximum sampling rate and I2C interface speed against system throughput requirements. Ensure the external reference voltage matches the specified input range for optimal accuracy across the industrial temperature spectrum.

Analog To Digital Converters (ADC) Part Context

The ISL26134AVZ belongs to the ISL26134 family of precision ADCs, which also includes variants like the ISL26102 and ISL26104. These devices share similar architectural features but differ in channel count and specific pinout configurations. The AVZ suffix typically denotes automotive-grade qualification and specific packaging options within the Renesas portfolio, distinguishing it from standard commercial grade equivalents.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include the ISL26104 for four-channel applications. Verify pin compatibility and software register mapping when migrating between different channel counts or package types within the ISL26xxx series to ensure seamless integration without hardware redesign.