MAX1246ACEE

Analog To Digital Converters (ADC) Overview

The MAX1246ACEE+ is a 12-bit successive-approximation analog-to-digital converter (ADC) housed in a 16-pin QSOP package. It operates on a single +2.7V to +3.6V supply and integrates a 4-channel multiplexer, track/hold circuit, and internal 2.5V reference. The device supports SPI/QSPI/MICROWIRE interfaces with a sampling rate of 133ksps. Key electrical parameters include ±0.5 LSB INL, ±1 LSB DNL, and a signal-to-noise ratio of 70 dB. Supply current is 1.2mA at full speed and drops to 1µA in power-down mode.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 4-channel analog multiplexer with software-configurable unipolar or bipolar input modes.
• Features an internal 2.5V voltage reference with a buffer amplifier offering ±1.5% adjustment range.
• Supports low-power operation with automatic shutdown capabilities between conversions.
• Provides a 4-wire serial interface compatible with standard microprocessor protocols.

Analog To Digital Converters (ADC) Applications

• Portable data logging systems
• Medical instrumentation
• Battery-powered instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the component against official Analog Devices datasheets to confirm pinout compatibility and electrical specifications. Ensure the operating temperature range meets system requirements. Check for RoHS compliance status as indicated in the manufacturer documentation. Confirm that the QSOP-16 package dimensions align with the PCB layout constraints.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution is required for low-power applications. The integrated reference simplifies design by reducing external component count. Consider the 133ksps sampling rate for moderate-speed data acquisition tasks. Verify that the single-supply voltage range matches the system's power architecture.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX1246/MAX1247 family of low-power, serial ADCs. It shares architectural similarities with other Maxim Integrated data acquisition devices but is distinguished by its specific voltage range and integrated reference features. The QSOP package offers a compact footprint suitable for space-constrained designs.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1247ACEE+ serves as a direct functional substitute within the same family, differing primarily in its wider supply voltage range up to 5.25V. Other members of the MAX124x series may offer different resolutions or channel counts but require verification of pin compatibility and electrical characteristics.