Overview
The REF02H, produced by Analog Devices Inc., is a precision 5V voltage reference and temperature transducer. This component is designed to provide a stable 5V output voltage over a wide range of operating conditions, making it suitable for various applications requiring precise voltage references. The REF02H features a bandgap design that ensures excellent temperature stability, low noise, and low power consumption.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (VO) | IL = 0 mA | 4.950 | 5.000 | 5.050 | V |
| Output Adjustment Range (∆VTRIM) | RP = 10 kΩ | ±2.7 | ±6.0 | ±2.0 | % |
| Output Voltage Noise (en p-p) | 0.1 Hz to 10 Hz | 15 | 20 | µV p-p | |
| Line Regulation (∆VOUT/∆VIN) | VIN = 8 V to 40 V | 0.009 | 0.015 | %/V | |
| Load Regulation (∆VOUT/∆IOUT) | IL = 0 mA to 8 mA | 0.006 | 0.015 | %/mA | |
| Quiescent Supply Current (ISY) | No load | 1.0 | 1.6 | mA | |
| Temperature Voltage Output (VT) | REF02 Only | 620 | mV | ||
| Operating Temperature Range | 0°C to 70°C | °C |
Key Features
- Stable 5V Output Voltage: Accurate to ±0.3% with a low temperature coefficient of 8.5 ppm/°C maximum.
- Temperature Voltage Output: Provides a temperature output of 1.96 mV/°C, making it suitable as a monolithic temperature transducer.
- Low Noise: Output voltage noise is 15 µV p-p maximum from 0.1 Hz to 10 Hz.
- Low Supply Current: Maximum quiescent supply current of 1.4 mA.
- Wide Input Voltage Range: Operates over an input voltage range of 7 V to 40 V.
- High Load-Driving Capability: Can drive loads up to 10 mA.
- No External Components Required: Self-contained design eliminates the need for external components.
- Short-Circuit Proof: Protected against short circuits to ground and to VIN ≤ 16V.
Applications
- DACs and ADCs: Ideal for digital-to-analog and analog-to-digital converters due to its stable output voltage.
- Portable Instrumentation: Suitable for battery-powered devices requiring low power consumption and high accuracy.
- Digital Voltmeters: Used in precision measurement instruments where stable voltage references are crucial.
- Precision Regulators and Constant Current Sources: Can be used in various precision voltage regulation and current source applications.
Q & A
- What is the output voltage of the REF02H?
The REF02H provides a stable 5V output voltage with an accuracy of ±0.3%.
- What is the temperature coefficient of the REF02H?
The temperature coefficient of the REF02H is 8.5 ppm/°C maximum.
- What is the input voltage range of the REF02H?
The REF02H operates over an input voltage range of 7 V to 40 V.
- How much current can the REF02H drive?
The REF02H can drive loads up to 10 mA.
- Is the REF02H short-circuit proof?
Yes, the REF02H is protected against short circuits to ground and to VIN ≤ 16V.
- What is the quiescent supply current of the REF02H?
The quiescent supply current of the REF02H is 1.4 mA maximum.
- Can the REF02H be used as a temperature transducer?
Yes, the REF02H includes a temperature output pin, making it suitable as a monolithic temperature transducer.
- What is the noise level of the REF02H?
The output voltage noise of the REF02H is 15 µV p-p maximum from 0.1 Hz to 10 Hz.
- What are some common applications of the REF02H?
The REF02H is commonly used in DACs, ADCs, portable instrumentation, digital voltmeters, and precision regulators.
- Does the REF02H require external components?
No, the REF02H is a self-contained design and does not require external components.
