LTC1392IN8#PBF

Thermal Management Overview

The LTC1392IN8#PBF is a micropower data acquisition system in an 8-lead PDIP package. It integrates a temperature sensor, power supply monitor, and a 10-bit rail-to-rail differential voltage input. The device operates on a single 4.5V to 6V supply with 0.2μA idle current. It features a 3-wire half-duplex serial interface for communication with microprocessors.

Thermal Management Feature Summary

• Integrates onboard ambient temperature sensing with production-trimmed accuracy.
• Includes a system power supply monitor for direct VCC measurement.
• Features a 10-bit successive approximation ADC with rail-to-rail common-mode differential inputs.
• Supports efficient data transfer via a synchronous 3-wire half-duplex serial interface.

Thermal Management Applications

• Temperature Measurement
• Power Supply Measurement
• Current Measurement
• Remote Data Acquisition
• Environment Monitoring

Thermal Management Procurement Notes

Verify the specific suffix IN8 corresponds to the industrial grade (-40°C to 85°C) operating range and the 8-lead PDIP package configuration. Confirm that the component meets RoHS compliance standards as indicated by the PBF suffix. Ensure the source documentation explicitly supports these specifications for this exact part number before procurement.

Thermal Management Selection Notes

Select this component for applications requiring simultaneous monitoring of temperature, supply voltage, and differential signals within a single IC. The low power consumption makes it suitable for battery-operated systems. The serial interface simplifies integration with standard microprocessor ports, reducing pin count requirements compared to parallel interfaces.

Thermal Management Part Context

This part belongs to the LTC1392 family of micropower data acquisition systems. It is designed to replace discrete solutions for temperature and voltage monitoring. The industrial grade variant ensures reliable operation across extended temperature ranges, making it appropriate for demanding environmental conditions.

Thermal Management Replacement Considerations

Consult the manufacturer's related parts list for alternatives such as the LTC1391 multiplexer or other micropower ADCs if specific interface or resolution requirements differ. Verify pin compatibility and electrical characteristics when considering substitutes from other manufacturers.

Thermal Management FAQ

How is the measured temperature calculated from the output code?

The temperature in degrees Celsius is calculated using the formula: Temperature (°C) = Output Code / 4 - 130.

What is the guaranteed operating temperature range for the IN8 variant?

The LTC1392I variant guarantees operation over a temperature range of -40°C to 85°C.

Can the differential inputs be used for single-ended measurements?

Yes, the +VIN pin can be used as a single-ended input by grounding the -VIN pin.