ISL267440IUZ-T7A

Analog To Digital Converters (ADC) Overview

The ISL267440IUZ-T7A is a 10-bit, 1MSPS sampling rate Successive Approximation Register (SAR) Analog-to-Digital Converter manufactured by Renesas Electronics. It features a robust, fully-differential input stage designed to minimize errors from leakage currents and maintain accuracy with input signals extending to the supply rails. The device operates on a single supply voltage ranging from 2.7V to 5.25V for both analog and digital domains. It includes an external reference input accepting voltages from 0.1V to 2.2V at 3V operation or up to 3.5V at 5V operation. Power consumption is specified at 8.5mW during conversion and drops to 5µW in Auto Power-Down mode. The component is housed in an 8-lead MSOP package and supports industrial temperature ranges.

Analog To Digital Converters (ADC) Feature Summary

• Fully differential input architecture providing high impedance to reduce leakage current errors
• SPI-compatible serial digital interface for straightforward integration with microcontrollers and FPGAs
• Auto Power-Down mode capability enabling ultra-low power consumption between conversions
• High ESD survivability rating of up to 8kV Human Body Model protection

Analog To Digital Converters (ADC) Applications

• Remote data acquisition systems
• Battery-operated instruments
• Industrial process control
• Energy measurement devices
• Pressure sensors and flow controllers

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors as this part may be subject to obsolescence notices. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Check for specific tape and reel quantities if ordering in bulk. Ensure the revision matches design requirements due to potential legacy status updates.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 10-bit resolution and 1MSPS speed are required for low-power applications. The fully differential input is suitable for noisy environments where common-mode rejection is critical. Consider the external reference requirement if system design allows for precise voltage referencing. Verify that the 8-lead MSOP package fits the PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ISL267440/50A family of SAR ADCs. It is functionally similar to the 12-bit ISL267450 variant but offers lower resolution. The series is known for drop-in compatibility with older AD7440 designs. It serves as a bridge between analog sensor signals and digital processing units in compact industrial and portable applications.

Analog To Digital Converters (ADC) Replacement Considerations

The ISL267450AIHZ is a compatible 12-bit version within the same family offering higher resolution. Legacy equivalents include the AD7440 for direct pin-compatible replacement in existing designs. Verify electrical specifications against these alternatives to ensure performance meets application needs.