MAX1240AESA/V+

Analog To Digital Converters (ADC) Overview

The MAX1240AESA/V+ is a low-power, 12-bit successive-approximation analog-to-digital converter (ADC) housed in an 8-pin SO package. It operates on a single +2.7V to +3.6V supply and features an internal 2.5V reference. The device supports a throughput rate of 73 ksps with a conversion time of 7.5µs and includes an internal track/hold circuit. It utilizes a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards. The component is automotive qualified under AEC-Q100 and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 12-bit SAR ADC with an internal 2.5V voltage reference and track/hold circuitry
• Features a 3-wire serial interface compatible with standard microcontroller ports
• Includes a dedicated shutdown mode for significant power reduction

Analog To Digital Converters (ADC) Applications

• Battery-powered systems
• Portable data logging
• Isolated data acquisition
• Process control instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'V+' indicates automotive qualification per the manufacturer's ordering guide. Confirm the package type matches the required PCB footprint. Ensure the operating environment falls within the specified -40°C to +85°C range. Check for lead-free compliance documentation if required by local regulations.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a single-channel, 12-bit resolution is sufficient for the application. Choose this part over the MAX1241 if an integrated internal reference is preferred to minimize external components. Consider the 73 ksps sampling rate against the signal bandwidth requirements to ensure adequate Nyquist coverage.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX1240/MAX1241 family of low-power serial ADCs from Analog Devices/Maxim Integrated. The MAX1240 variant specifically integrates an internal reference, whereas the MAX1241 requires an external one. Both share identical architectures but differ in supply voltage ranges and reference configurations.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional replacements include other parts within the MAX1240 series such as the MAX1240ACSA+ or MAX1240BCSA+. Verify pin compatibility and electrical specifications before substitution.