MX7705EUE+T

Analog To Digital Converters (ADC) Overview

The MX7705EUE+T is a low-power, 2-channel, serial-output analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It utilizes a sigma-delta modulator with a digital filter to achieve 16-bit resolution without missing codes. The device features an on-chip input buffer and a programmable-gain amplifier (PGA) with gains ranging from 1 to 128. It operates from a single 2.7V to 5.25V supply, consuming 320µA typically at 3V, with power-down current reduced to 2µA. The ADC supports SPI-, QSPI-, and MICROWIRE-compatible 3-wire serial interfaces and includes self-calibration capabilities for gain and offset errors.

Analog To Digital Converters (ADC) Feature Summary

• Pin compatible and software compatible with the AD7705
• Features internal analog input buffers for high source impedance signals
• Includes a programmable-gain amplifier (PGA) with selectable gains from 1 to 128
• Supports SPI-, QSPI-, and MICROWIRE-compatible 3-wire serial interface

Analog To Digital Converters (ADC) Applications

• Industrial Instruments
• Weigh Scales
• Strain-Gauge Measurements
• Loop-Powered Systems
• Medical Instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm that the ordering suffix matches the required package type and temperature range specifications. Ensure compliance with RoHS standards as indicated by the plus sign in the part number. Cross-reference the datasheet revision to confirm electrical characteristics align with your design requirements before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit resolution ADC with differential inputs and integrated signal conditioning is required. Consider the PGA functionality if amplification of low-level signals is necessary to minimize external components. Verify that the operating voltage range of 2.7V to 5.25V fits within the system power budget. Ensure the microcontroller interface supports the selected serial communication protocol mode.

Analog To Digital Converters (ADC) Part Context

The MX7705 series belongs to the family of low-power, 16-bit sigma-delta analog-to-digital converters produced by Maxim Integrated, now part of Analog Devices Inc. This specific variant is designed for precision measurement applications requiring high accuracy and low noise performance. It serves as a direct replacement for legacy parts while offering enhanced integration through built-in buffering and calibration features.

Analog To Digital Converters (ADC) Replacement Considerations

The MX7705 is pin compatible and software compatible with the AD7705. When substituting, verify that the alternative component supports the same 16-bit resolution and differential input configuration. Ensure the replacement maintains compatibility with the required serial interface protocols and operates within the specified voltage and temperature ranges.