MAX1415EWE+

Analog To Digital Converters (ADC) Overview

The MAX1415EWE+ is a low-power, 2-channel, serial-output analog-to-digital converter (ADC) utilizing a sigma-delta modulator with a digital filter to achieve 16-bit resolution without missing codes. It operates on a single supply voltage ranging from 2.7V to 3.6V and features an internal oscillator, an on-chip input buffer, and a programmable gain amplifier (PGA). The device supports SPI-, QSPI™-, and MICROWIRE®-compatible serial interfaces. Key electrical parameters include a maximum integral nonlinearity of ±0.0015% FSR, a typical power-down current of 2μA, and a continuous power dissipation of 762mW in the 16-pin Wide SO package.

Analog To Digital Converters (ADC) Feature Summary

• Provides excellent DC accuracy with 16-bit resolution and no missing codes.
• Minimizes power consumption through low-power dissipation and deep sleep modes.
• Lowers system cost by integrating a PGA with gains from 1 to 128 and optional input buffers.
• Increases system accuracy via built-in self-calibration capabilities for offset, gain, and system calibration.

Analog To Digital Converters (ADC) Applications

• Industrial Instruments
• Weigh Scales
• Strain-Gauge Measurements
• Loop-Powered Systems
• Flow and Gas Meters

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature range. Ensure compatibility with existing board layouts as this component serves as a pin-compatible upgrade to legacy MX7705/AD7705 designs. Confirm supply voltage requirements match the MAX1415 specification of 2.7V to 3.6V before integration into the final system design.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX1415EWE+ when high precision is required for differential signal acquisition in low-power environments. This part is suitable for applications demanding programmable gain amplification and flexible clocking options. Consider the external reference voltage requirements and ensure the host microcontroller supports the required serial interface protocols for seamless data transfer.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX1415/MAX1416 family of 16-bit, low-power, 2-channel sigma-delta ADCs. It is designed as a direct pin-compatible replacement for older generation devices like the MX7705 and AD7705. The E suffix indicates an extended industrial temperature range of -40°C to +85°C, making it suitable for demanding operational environments.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1415EWE+ is explicitly documented as a pin-compatible upgrade for the MX7705 and AD7705. Designers migrating from these legacy parts can utilize this component without modifying the PCB footprint, provided that power supply and reference voltage constraints are observed.

Analog To Digital Converters (ADC) FAQ

What is the maximum integral nonlinearity specified for the MAX1415EWE+?

The maximum integral nonlinearity (INL) is specified as ±0.0015% of Full Scale Range (FSR) at a gain of 1 in bipolar mode with unbuffered inputs.

Does the MAX1415EWE+ support multiple serial communication protocols?

Yes, the device offers an SPI-, QSPI™-, and MICROWIRE®-compatible serial interface for flexible connection to various host controllers.

How does the MAX1415EWE+ handle calibration?

It features built-in self-calibration capabilities, including on-demand offset and gain self-calibration, as well as system calibration, along with user-programmable offset and gain registers.