MAX1285BESA

Analog To Digital Converters (ADC) Overview

The MAX1285BESA+T is a single-channel, 12-bit successive-approximation register (SAR) analog-to-digital converter (ADC). It operates from a single +2.7V to +3.6V supply and features an internal +2.5V reference. The device supports a sampling rate of 300ksps with a serial clock frequency up to 4.8MHz. Key electrical parameters include ±1LSB maximum DNL and INL, a full-power bandwidth of 3MHz, and a typical supply current of 2.5mA during conversion. It utilizes a 3-wire SPI/QSPI/MICROWIRE compatible interface and is housed in an 8-pin SO package.

Analog To Digital Converters (ADC) Feature Summary

• Single-supply operation optimized for low-voltage applications
• Integrated track/hold amplifier and internal voltage reference
• Compatible with standard microprocessor serial interfaces

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• Battery-powered instrumentation
• Medical instruments
• Process control units

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix against official documentation to confirm temperature range and lead-free compliance. Ensure the ordering code matches the required operating environment and packaging specifications provided by Analog Devices / Maxim Integrated.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a low-voltage single-supply ADC is required. The MAX1285 variant is distinct from the MAX1284 due to its lower operating voltage range (+2.7V to +3.6V vs +4.5V to +5.5V). Verify that the 300ksps throughput meets system timing requirements.

Analog To Digital Converters (ADC) Part Context

This device belongs to the MAX1284/MAX1285 family of high-speed, low-power serial ADCs. It serves as a pin-compatible, higher-speed upgrade to the MAX1240/MAX1241 series. The MAX1285 specifically targets applications requiring operation below 3.6V while maintaining 12-bit resolution.

Analog To Digital Converters (ADC) Replacement Considerations

MAX1284BESA+T offers identical functionality but requires a +4.5V to +5.5V supply. MAX1285BCSA+ provides the same electrical characteristics in a commercial temperature range (0°C to +70°C) instead of the extended industrial range.