MAX11645EWC+T

Analog To Digital Converters (ADC) Overview

The MAX11645EWC+T is a low-power, 12-bit analog-to-digital converter (ADC) featuring two single-ended or one fully differential input channel. It operates from a single supply of 2.7V to 3.6V and includes an internal 2.048V voltage reference. The device utilizes a high-speed I2C-compatible 2-wire serial interface supporting up to 1.7MHz in high-speed mode. Key electrical parameters include a throughput rate of 94.4ksps, a signal-to-noise plus distortion ratio of 70dB at 94.4ksps, and a full-linear bandwidth of 5MHz. Supply current consumption ranges from 6μA at 1ksps to 670μA at 94.4ksps, with power-down current below 1μA.

Analog To Digital Converters (ADC) Feature Summary

• Ultra-tiny 1.9mm x 2.2mm wafer level package for space-constrained designs
• Internal track/hold, clock, and 2.048V voltage reference minimize external components
• Software-configurable unipolar/bipolar and single-ended/differential input modes
• AutoShutdown technology reduces supply current significantly between conversions

Analog To Digital Converters (ADC) Applications

• Handheld portable applications
• Medical instruments
• Battery-powered test equipment
• Solar-powered remote systems
• Received-signal-strength indicators

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix EWC+T corresponds to the 12-pin WLP package and tape-and-reel shipping format. Confirm RoHS compliance and lead-free status as indicated by the '+' designation. Ensure the master controller supports the required I2C high-speed mode timing for optimal performance.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX11645 over the MAX11644 when operating from a 2.7V to 3.6V supply rail, as the latter requires 4.5V to 5.5V. Choose this 12-bit resolution model if higher accuracy than the 10-bit MAX11646/MAX11647 family is required. Verify that the 2-channel input count meets system requirements, as other variants offer different channel counts.

Analog To Digital Converters (ADC) Part Context

The MAX11645 belongs to the MAX11644/MAX11645 family of low-power, 12-bit ADCs. It is pin-compatible with the MAX11644, differing primarily in supply voltage range and internal reference voltage. This family serves as the high-resolution counterpart to the 8-bit MAX11600 series and the 10-bit MAX11646 series within the Maxim Integrated portfolio.

Analog To Digital Converters (ADC) Replacement Considerations

MAX11644EUA+ is a pin-compatible alternative requiring a 4.5V to 5.5V supply. MAX11645EUA+ offers the same electrical specifications but in an 8-pin μMAX package instead of the WLP form factor.