MAX1242BCSA+

Analog To Digital Converters (ADC) Overview

The MAX1242BCSA+ is a low-power, 10-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +2.7V to +5.25V supply and features an internal 2.5V reference voltage. The device utilizes a successive-approximation register (SAR) architecture with a maximum sampling rate of 73ksps and a conversion time of 7.5µs. Power consumption is 3mW at full speed. It includes a fast track/hold circuit with a 1.5µs acquisition time and a three-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. The component is housed in an 8-pin SO package and supports an operating temperature range from 0°C to +70°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 2.5V internal voltage reference for simplified system design
• Low power consumption with dedicated shutdown mode for extended battery life
• Fast track/hold circuitry ensures accurate signal acquisition
• Compatible with standard microcontroller serial interfaces

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• Process control monitoring
• Temperature measurement circuits
• Isolated data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature rating. Ensure compatibility with RoHS compliance requirements if applicable to your manufacturing standards. Cross-reference the part number with authorized distributors to confirm current availability and lead times. Validate that the intended application environment falls within the specified operating temperature range of 0°C to +70°C.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of moderate resolution and low power consumption is required. The integrated reference eliminates external components compared to the MAX1243 variant. Consider the 10-bit resolution and 73ksps throughput for applications where higher precision or speed is not critical. Evaluate the 8-pin footprint constraints against available board space.

Analog To Digital Converters (ADC) Part Context

This device belongs to the MAX124x family of low-power serial ADCs. It serves as a cost-effective alternative to higher-resolution models like the MAX1240/MAX1241 while maintaining pin compatibility. The MAX1242 variant specifically integrates an internal reference, distinguishing it from the MAX1243 which requires an external reference source.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1242AESA+ offers the same functionality with a wider industrial temperature range (-40°C to +85°C). For higher resolution needs, the MAX1240BESA+ provides a 12-bit upgrade path with pin-compatible operation.