Overview
The REF102CU/2K5 is a precision 10V voltage reference produced by Texas Instruments. It is designed to provide high accuracy and stability, making it an ideal choice for demanding instrumentation and system reference applications. The REF102 achieves its precision without a heater, resulting in low power consumption, fast warm-up, excellent stability, and low noise. The device operates on a single supply from 11.4V to 36V and is available in both SO-8 and DIP-8 packages.
Key Specifications
| Parameter | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|
| Output Voltage | Initial at TA = 25°C | 9.9975 | 10.0000 | 10.0025 | V |
| Drift vs Temperature | -25°C to +85°C | - | - | 2.5 | ppm/°C |
| Line Regulation | VS = 11.4V to 36V | - | - | 1 | ppm/V |
| Load Regulation | IL = 0mA to +10mA | - | - | 10 | ppm/mA |
| Noise | 0.1Hz to 10Hz | - | - | 5 | µVPP |
| Quiescent Current | IOUT = 0 | - | - | 1.4 | mA |
| Operating Temperature Range | - | -25 | - | 85 | °C |
| Storage Temperature Range | - | -40 | - | 125 | °C |
Key Features
- ±10V ±0.0025V Output: High precision output voltage.
- Very Low Drift: 2.5ppm/°C max over the industrial temperature range.
- Excellent Stability: 5ppm/1000hr typ.
- Excellent Line Regulation: 1ppm/V max.
- Excellent Load Regulation: 10ppm/mA max.
- Low Noise: 5µVPP typ, 0.1Hz to 10Hz.
- Wide Supply Range: 11.4VDC to 36VDC.
- Low Quiescent Current: 1.4mA max.
- Package Options: Plastic DIP, SO-8.
Applications
- Precision-Calibrated Voltage Standard.
- D/A and A/D Converter Reference.
- Precision Current Reference.
- Accurate Comparator Threshold Reference.
- Digital Voltmeters.
- Test Equipment.
- PC-Based Instrumentation.
Q & A
- What is the output voltage of the REF102CU?
The output voltage of the REF102CU is ±10V ±0.0025V.
- What is the temperature drift of the REF102CU?
The temperature drift of the REF102CU is 2.5ppm/°C max over the industrial temperature range).
- What is the line regulation of the REF102CU?
The line regulation of the REF102CU is 1ppm/V max).
- What is the load regulation of the REF102CU?
The load regulation of the REF102CU is 10ppm/mA max).
- What is the noise level of the REF102CU?
The noise level of the REF102CU is 5µVPP typ, 0.1Hz to 10Hz).
- What is the supply voltage range of the REF102CU?
The supply voltage range of the REF102CU is 11.4VDC to 36VDC).
- What is the quiescent current of the REF102CU?
The quiescent current of the REF102CU is 1.4mA max).
- In what packages is the REF102CU available?
The REF102CU is available in both Plastic DIP and SO-8 packages).
- What are some common applications of the REF102CU?
The REF102CU is commonly used in precision-calibrated voltage standards, D/A and A/D converter references, precision current references, accurate comparator threshold references, digital voltmeters, test equipment, and PC-based instrumentation).
- How does the REF102CU achieve its precision?
The REF102CU achieves its precision through a compensated buried zener diode, an op amp, and a laser-trimmed resistor network, all without the need for a heater).
