MAX132EWG+T

Analog To Digital Converters (ADC) Overview

The MAX132EWG+T is a CMOS, 18-bit plus sign, serial-output analog-to-digital converter (ADC) manufactured by Analog Devices / Maxim Integrated. It utilizes multi-slope integration to achieve high-resolution conversions at rates up to 100 conversions per second. The device features a low conversion noise of 15µVRMS and supports a ±512mV full-scale input range with 2µV/LSB resolution. Typical supply current is 60µA in normal operation, reducing to 1µA in sleep mode. It employs a simple 4-wire serial interface for microprocessor connectivity and offers four serially programmed digital outputs. The component is housed in a 24-pin wide SO package and operates within an extended temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Multi-slope integration architecture enables high-resolution conversions faster than standard integrating ADCs.
• Low power consumption with typical 60µA active current and 1µA sleep mode current.
• Simple 4-wire serial interface compatible with common microprocessors using two's complement output coding.
• Four user-programmable digital outputs allow control of external multiplexers or programmable-gain amplifiers.

Analog To Digital Converters (ADC) Applications

• Remote data acquisition systems
• Battery-powered instruments
• Industrial process control
• Transducer-signal measurement including pressure, flow, temperature, voltage, current, resistance, and weight

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'EWG' corresponds to the 24-pin Wide SO package and the -40°C to +85°C extended temperature grade. Confirm RoHS compliance status via official documentation. Ensure the ordering part number matches the exact pin configuration and thermal rating required for the target application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high resolution and low power. Ensure the system clock frequency matches the desired conversion rate and line rejection requirements. Verify that the reference voltage falls within the recommended range to maintain specified accuracy and minimize rollover error. Consider the package size constraints when designing the PCB layout.

Analog To Digital Converters (ADC) Part Context

The MAX132 series includes variants such as the MAX132CNG, MAX132CWG, MAX132ENG, and MAX132MRG. These differ primarily in operating temperature ranges and package types. The MAX132EWG+T specifically denotes the extended temperature grade (-40°C to +85°C) in a 24-pin Wide SO package. Other family members include narrow DIP and CERDIP options for different thermal and mechanical needs.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include MAX132ENG (Narrow DIP, Extended Temp) and MAX132MRG (CERDIP, Military Temp). Cross-family replacements require careful evaluation of pin compatibility, resolution, and interface timing specifications.