Texas Instruments

ISO7731DBQR  

Digital Isolators

The ISO7731DBQR is a precision, low-power, monolithic integrated circuit designed by Texas Instruments for use as a voltage reference in a variety of applications. Here is a description of the model, its features, and its applications:

Description:

The ISO7731DBQR is a member of Texas Instruments' ISO723x family of precision voltage references. It is a low-dropout (LDO) voltage reference that provides excellent stability and low temperature coefficient, making it suitable for a wide range of precision applications.

Features:

1. Precision Voltage Output: The ISO7731DBQR offers a precision voltage reference output, typically 2.5V, 4.096V, or 10V, depending on the specific model variant.
2. Low Temperature Coefficient: The device has a low temperature coefficient, ensuring stable output voltage over a wide temperature range.
3. Low Dropout Voltage: It features a low dropout voltage, which means it can operate with a small input-to-output voltage differential, making it suitable for low-voltage applications.
4. Low Power Consumption: The device is designed for low power consumption, making it ideal for battery-powered applications.
5. High PSRR (Power Supply Rejection Ratio): This feature ensures that the output voltage remains stable even when the input voltage supply has noise or fluctuations.
6. Small Package Size: The ISO7731DBQR is available in a small package, such as the SC70-5 or SOT-23, which is suitable for compact designs.
7. Wide Operating Voltage Range: It can operate over a wide range of input voltages, typically from 2.7V to 5.5V.

Applications:

1. Data Acquisition Systems: Used to provide a stable reference voltage for analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
2. Sensor Conditioning: Provides a stable reference for sensors that require precise voltage levels for accurate operation.
3. Battery Monitors: Used in battery-powered devices to monitor and maintain accurate voltage levels.
4. Voltage Regulation: Can be used as a stable voltage regulator in low-voltage applications.
5. Medical Instruments: Due to their precision and stability, these references are often used in medical equipment that requires high accuracy.
6. Industrial Control Systems: Used in systems where a stable reference voltage is critical for the operation of controllers and sensors.
7. Communication Systems: Can be used to provide a stable reference for signal processing circuits in communication systems.

The ISO7731DBQR is a versatile and reliable choice for applications that require a stable and precise voltage reference. Its combination of low power consumption, low temperature drift, and small package size make it suitable for a wide range of electronic devices and systems.

ISO7731DBQR Documents

Download datasheets and manufacturer documentation for ISO7731DBQR

PCN Assembly/Origin :

ISO7YYY 15/May/2018      

Datasheets :

ISO7730, ISO7731 Datasheet      

HTML Datasheet :

ISO7730, ISO7731 Datasheet