ISL267450IBZ

Analog To Digital Converters (ADC) Overview

The ISL267450IBZ is a 12-bit, 1MSPS Successive Approximation Register (SAR) Analog-to-Digital Converter manufactured by Renesas Electronics. It features a fully differential input stage with high impedance to minimize leakage current errors and supports input signals up to the supply rails. The device operates on a single analog and digital power supply ranging from 2.7V to 5.25V. It utilizes an external reference voltage input compatible with 0.1V to 2.2V for 3V systems or 0.1V to 3.5V for 5V systems. The component includes an SPI-compatible serial digital interface for communication with microcontrollers and FPGAs.

Analog To Digital Converters (ADC) Feature Summary

• Fully differential input architecture providing high impedance and extended input range capability
• SPI-compatible serial digital interface for straightforward integration with standard processors
• External reference voltage flexibility supporting both 3V and 5V system configurations
• Robust ESD protection rated at up to 8kV Human Body Model survivability

Analog To Digital Converters (ADC) Applications

• Remote industrial sensor data acquisition
• Battery-powered instrumentation systems
• Industrial process control loops
• Energy measurement devices

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized Renesas distributors due to potential market variations. Confirm package integrity and RoHS compliance status prior to integration. Check for specific suffix designations that may indicate tape-and-reel versus tube packaging variants. Ensure supply chain documentation matches the exact part number ISL267450IBZ to avoid substitution errors in critical designs.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution and 1MSPS sampling rate are required within a compact MSOP-8 footprint. It is suitable for designs needing low power consumption of 8.5mW during operation. Consider the external reference requirement if internal precision references are not available in the system architecture. Verify compatibility with the host microcontroller's SPI clock speeds and voltage levels.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ISL267450 series of SAR ADCs, which are drop-in compatible with AD7440 and AD7450A equivalents. The IBZ suffix typically denotes the MSOP-8 package variant specified for industrial temperature ranges. It shares architectural similarities with other members like the AIUZ and IHZ-T7A, differing primarily in packaging and reel specifications.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements include the AD7450A from Analog Devices. Verify electrical parameter equivalence, specifically linearity and power dissipation, before substituting. Alternative packages such as SOT-23-8 (ISL267450AIHZ-T7A) require schematic and layout modifications.