Overview

The ISL267450 is a 12-bit, 1MSPS sampling SAR-type ADC with a differential input span of 2*VREF volts. The ISL267450 features excellent linearity over supply and temperature variations and is drop-in compatible with the AD7450. The device can operate from a supply voltage of either 5V or 3V and maintain measurement accuracy with input signals up to the supply rails. The serial digital interface is SPI compatible and is easily interfaced to popular FPGAs and microcontrollers. Power dissipation is 9. 0mW at a sampling rate of 1MSPS, and just 5μW between conversions utilizing Auto Power-Down mode (with a 3V supply). The ISL267450 is available in 8 Ld SOIC or MSOP packages, and are specified for operation over the Industrial temperature range (–40°C to +85°C).

ISL267450 Functional Diagram
ISL267450 Functional Diagram
  • Drop-in Compatible with AD7450
  • Differential Input
  • Simple SPI-compatible Serial Digital Interface
  • Guaranteed No Missing Codes
  • 1MHz Sampling Rate
  • 3V or 5V Operation
  • Low Operating Current
  • 1.25mA at 833kSPS with 3V Supplies
  • 1.7mA at 1MSPS with 5V Supplies
  • Power-down Current between Conversions: 1μA
  • Excellent Differential Non-Linearity
  • Low THD: -83dB (typ)
  • Pb-Free (RoHS Compliant)
  • Available in SOIC and MSOP Packages

Applications

  • Remote Data Acquisition
  • Battery Operated Systems
  • Industrial Process Control
  • Energy Measurement
  • Data Acquisition Systems
  • Pressure Sensors
  • Flow Controllers

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    Buy / Sample
    Part Number
    ISL267450IBZ
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    		SOICN Tube 980
    ISL267450IBZ-T
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    		SOICN Reel 2500
    ISL267450IBZ-T7A
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    		SOICN Reel 250
    ISL267450IUZ
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    		MSOP Tube 980
    ISL267450IUZ-T
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    		MSOP Reel 2500
    ISL267450IUZ-T7A
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    		MSOP Reel 250
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