Overview
REF102CU is a high-precision reference voltage source launched by Texas Instruments. The device provides a stable and accurate 2.495V reference voltage output and is widely used in precision measurement and signal processing systems that require high stability and low drift. With its low temperature coefficient, low noise and high stability, REF102CU has become an ideal reference voltage source in data acquisition, instrumentation, communication systems and other fields.

Specifications
Parameter | Numeric |
Output voltage | 2.495V |
Output accuracy | ±0.5% (maximum) |
Temperature coefficient | 25ppm/°C |
Output Current | 1mA to 10mA (max) |
Operating voltage range | 3V to 40V |
Package Type | TO-8 (8-pin) |
Operating temperature range | -40°C to +85°C |
Noise Density | 10µVpp (typical, 0.1Hz to 10Hz) |
REF102CU’s outstanding features
The high-precision output voltage
provides a high-precision reference voltage of 2.495V to meet various precision voltage reference requirements and ensure system stability and accuracy.
Low Temperature Coefficient
The temperature coefficient is only 25ppm/°C, maintaining extremely low voltage drift over a wide temperature range, suitable for high-precision measurement and temperature-sensitive applications.
The regulated output current capability
provides a regulated output current of 1mA to 10mA, suitable for driving high load applications such as precision analog circuits and sensors.
Low noise characteristics
The typical noise density is 10µVpp (0.1Hz to 10Hz), which is suitable for high-precision signal acquisition systems to reduce interference and noise effects.
High reliability and stability
The rugged package design and wide operating temperature range (-40°C to +85°C) ensure stable operation in harsh environments.
Compact
TO-8 package saves PCB space and provides excellent thermal stability, suitable for high-density circuit design.
Application Areas
The high accuracy, low drift and high stability of REF102CU make it widely used in the following fields:
Precision measuring equipment
is used in laboratory instruments, multimeters, oscilloscopes and other equipment to provide high-precision reference voltage to ensure the accuracy of measurement results.
The data acquisition system
acts as a reference source in the ADC (analog-to-digital converter) and DAC (digital-to-analog converter) to ensure the accuracy of data acquisition and signal processing.
The communication system
provides a stable reference voltage in the communication equipment to ensure the stable transmission of signals and the high precision of the signal processing system.
High-precision sensor interface is
used as a reference voltage source for signal conditioning and conversion in high-precision temperature, pressure, and optical sensor systems.
Test and Calibration
Used to calibrate and test the reference voltage source in the equipment to ensure the accuracy and consistency of the test system.
Comparative Analysis: REF102CU vs. Other Voltage References
Features/Specifications | REF102CU | Other voltage references on the market |
Output voltage | 2.495V | 2.5V or other |
temperature coefficient | 25ppm/°C | 50ppm/°C or higher |
Output current | 1mA to 10mA | Typically 1mA or less |
noise density | 10µVpp (0.1Hz to 10Hz) | 50µVpp or higher |
Working voltage range | 3V to 40V | 3V to 18V |
Package form | TO-8 | TO-5, TO-92, etc. |
The REF102CU offers significant advantages in temperature coefficient, noise density and output current capability, making it suitable for applications requiring extremely high accuracy.
Manufacturer introduction: Texas Instruments
Texas Instruments is a leading global supplier of semiconductor solutions, committed to providing customers with innovative and efficient analog and embedded processing solutions. REF102CU is a high-performance model in its voltage reference product line. With its excellent performance, it is widely used in high-precision measurement, instrumentation and communication systems.
Why choose REF102CU?
With its excellent accuracy, stability and low noise characteristics, REF102CU provides an ideal solution for systems that require precision reference voltage. Its low temperature coefficient and low noise density make it particularly suitable for high-precision measurement and signal conditioning applications, and it is an indispensable core component in high-end measurement equipment and sensor interfaces.
FAQ
Q1: Can the output voltage of REF102CU be adjusted?
A: No. The REF102CU provides a fixed 2.495V output voltage, but this voltage has extremely high accuracy and stability, suitable for applications that require a fixed reference voltage. The device is designed to provide a reliable output voltage over a long period of time, suitable for use in high-precision measuring instruments and precision meters.
Q2: Is REF102CU suitable for low power consumption devices?
A: Yes, REF102CU has very low operating current and low power consumption characteristics, suitable for low-power systems and battery-powered applications. It can run stably for a long time in power-saving mode, which is very suitable for portable devices or systems requiring strict power management.
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Product Details: Win Source – REF102CU
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