Overview
The REF02HH, produced by Analog Devices Inc., is a precision voltage reference IC designed to provide a stable 5V output voltage. This component is part of the REF02 series, known for its high output accuracy, excellent temperature stability, and low power consumption. The REF02HH is particularly suited for applications requiring moderate accuracy, low drift, and low cost. It is available in an 8-pin TO-5 metal can package and operates over a wide temperature range of -55°C to 125°C.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Output Voltage (VO) | IL = 0mA | 4.975 | 5.000 | 5.025 | V |
| Output Adjustment Range | RP = 10kΩ | ±2.7 | ±6.0 | ±6.0 | % |
| Output Voltage Noise (0.1Hz to 10Hz) | 10 | 20 | μV-P-P | ||
| Input Voltage Range (VIN) | 7.0 | 36 | V | ||
| Line Regulation (ΔVOUT/ΔVIN) | (VOUT + 3V) ≤ VIN ≤ 33V | 0.0001 | 0.015 | 0.04 | %/V |
| Load Regulation (ΔVOUT/ΔIOUT) | IL = 0mA to 10mA | 0.0005 | 0.001 | 0.01 | %/mA |
| Quiescent Supply Current (IQ) | No Load | 0.65 | 1.4 | 1.4 | mA |
| Load Current (IOUT) | -0.3 | 20 | mA | ||
| Short-Circuit Current (ISC) | VO = 0V | 25 | mA | ||
| Temperature Voltage Output (VT) | REF02 Only, VIN = 15V, TA = 25°C | 620 | mV |
Key Features
- High Output Accuracy: The REF02HH offers an output voltage accurate to ±0.3% maximum.
- Excellent Temperature Stability: The component has a low temperature coefficient of 8.5 ppm/°C maximum, ensuring stable output over a wide temperature range.
- Adjustable Output: The output voltage can be adjusted using an external resistor network, providing flexibility in various applications.
- Low Power Consumption: The REF02HH has a quiescent supply current of 1.4 mA maximum, making it suitable for low-power designs.
- Temperature Output Pin: The REF02HH includes a temperature output pin, which can be used for temperature sensing and approximation.
Applications
- A/D and D/A Converters: The REF02HH is ideal for providing a stable reference voltage in analog-to-digital and digital-to-analog converters.
- Precision Regulators: It can be used in precision voltage regulators to ensure stable output voltages.
- Constant Current Sources: The component is suitable for applications requiring constant current sources with high accuracy.
- V/F Converters: It can be used in voltage-to-frequency converters where a stable reference voltage is crucial.
- Bridge Excitation: The REF02HH is also used in bridge circuits to provide a stable excitation voltage.
Q & A
- What is the output voltage of the REF02HH? The output voltage of the REF02HH is 5V with an accuracy of ±0.3% maximum.
- What is the temperature range of the REF02HH? The REF02HH operates over a temperature range of -55°C to 125°C.
- Can the output voltage of the REF02HH be adjusted? Yes, the output voltage can be adjusted using an external resistor network.
- What is the quiescent supply current of the REF02HH? The quiescent supply current is 1.4 mA maximum.
- Does the REF02HH have a temperature output pin? Yes, the REF02HH includes a temperature output pin for temperature sensing and approximation.
- What are some common applications of the REF02HH? Common applications include A/D and D/A converters, precision regulators, constant current sources, V/F converters, and bridge excitation.
- What is the input voltage range of the REF02HH? The input voltage range is from 7.0V to 36V.
- What is the line regulation of the REF02HH? The line regulation is 0.0001% to 0.04%/V.
- What is the load regulation of the REF02HH? The load regulation is 0.0005% to 0.01%/mA.
- Is the REF02HH still in production? No, the REF02HH is no longer manufactured.
