ISL267450AIUZ

Analog To Digital Converters (ADC) Overview

The ISL267450AIUZ is a 12-bit, 1MSPS Successive Approximation Register (SAR) Analog-to-Digital Converter manufactured by Renesas Electronics. It features a single differential input channel and an SPI-compatible serial digital interface. The device operates on analog and digital supply voltages ranging from 2.7 V to 5.25 V. Key performance specifications include a Differential Nonlinearity (DNL) of 0.95 LSB, Integral Nonlinearity (INL) of 1 LSB, and a gain error of 2 LSB. Power dissipation is specified at 8.5 mW during sampling. It utilizes an external reference voltage and is housed in an 8-lead MSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Robust fully-differential input architecture providing high impedance to minimize leakage current errors.
• Input signals supported up to the supply rails, maintaining measurement accuracy across the full range.
• High ESD survivability rating of up to 8kV Human Body Model protection.
• Auto Power-Down mode enables ultra-low power consumption between conversions.

Analog To Digital Converters (ADC) Applications

• Remote industrial sensor signal conditioning
• Battery-powered portable instruments
• Data acquisition systems requiring low power and high linearity

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to End-of-Life status. Confirm RoHS compliance details via official datasheets. Check for alternative packaging options if original tube quantities are unavailable. Validate pinout compatibility with existing PCB layouts before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring 12-bit resolution at 1MSPS with differential inputs. Ensure external reference voltage falls within 0.1V to 3.5V for 5V operation. Consider the MSOP-8 package constraints for thermal management. Verify SPI interface compatibility with target microcontrollers or FPGAs.

Analog To Digital Converters (ADC) Part Context

The ISL267450AIUZ belongs to the ISL267450 series, which includes 10-bit and 12-bit SAR ADCs. This series is designed as a drop-in replacement for AD7440 and AD7450A devices. It shares architectural similarities with other Intersil/Renesas precision ADCs but offers specific linearity and power characteristics tailored for industrial use.

Analog To Digital Converters (ADC) Replacement Considerations

Officially documented compatible replacements include the AD7440 and AD7450A. Verify pinout and electrical parameter equivalence before substitution. Other ISL2674xx series variants may offer different resolutions or speeds but require circuit review.