MAX6610AUT

Overview

The MAX6610AUT is a precision, low-power analog temperature sensor and voltage reference in a 6-pin SOT23 package. It operates from 3.0V to 5.5V with a typical supply current of 150µA. The device provides a 2.560V reference output and a temperature output scaled at 10mV/°C. Temperature accuracy is ±1°C at +25°C and ±5°C over the -40°C to +125°C range. It features a low-current shutdown mode.

Feature Summary

• Integrated precision voltage reference and temperature sensor
• Temperature output scaled for convenient ADC bit weights
• Low-current shutdown mode reduces power consumption
• No calibration required due to factory trimming

Applications

• System temperature monitoring
• Temperature compensation
• HVAC systems
• Home appliances

Procurement Notes

Verify the specific suffix 'AUT' against official documentation to confirm the operating temperature range and package type. Ensure the supply voltage requirements align with the MAX6610 specifications (3.0V to 5.5V). Confirm RoHS compliance status through the manufacturer's latest certification documents before procurement.

Selection Notes

Select this component when an integrated solution for both system reference voltage and local temperature sensing is required. It is suitable for designs using analog-to-digital converters where simplified scaling of temperature codes is beneficial. Consider the SOT23-6 package size for space-constrained board layouts.

Part Context

The MAX6610 is part of a family of precision temperature sensors that combine a voltage reference with a temperature-sensing element. This integration simplifies circuit design by providing both necessary signals from a single component, reducing board space and component count compared to discrete solutions.

Replacement Considerations

The MAX6611 is a related variant offering a 4.096V reference and 16mV/°C slope, requiring a 4.5V minimum supply. Verify if the higher reference voltage or different slope better suits the ADC interface requirements.

FAQ

How does the MAX6610 scale temperature for ADCs?

The MAX6610 provides a temperature output slope of 10mV/°C. When used with an 8-bit ADC, the LSB equals 1°C, and with a 10-bit ADC, the LSB corresponds to 0.25°C.

What is the effect of the SHDN pin on the outputs?

Driving the SHDN pin low shuts down internal circuitry, reducing supply current to 1µA max. In this state, the REF output is pulled to ground through a 150kΩ resistor, and the TEMP output enters a high-impedance state.