Overview
The REF02BU/2K5 is a precision 5V voltage reference produced by Texas Instruments. It is designed to provide a stable 5V output with excellent temperature stability and low noise. The device operates from a single supply with an input range of 8V to 40V and has a very low current drain of 1mA. The REF02BU/2K5 is laser trimmed to ensure a temperature drift of 10ppm/°C max over the extended industrial and military temperature range. It is available in DIP-8 and SO-8 package options, making it suitable for various applications requiring precise voltage referencing.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Output Voltage | 4.985 | 5.0 | 5.015 | V |
| Temperature Drift | 4 | 10 | 15 | ppm/°C |
| Output Noise (0.1Hz to 10Hz) | 4 | 10 | - | µVPP |
| Line Regulation (VIN = 8V to 33V) | 0.006 | 0.010 | - | %/V |
| Load Regulation (IL = 0mA to +10mA) | 0.005 | 0.010 | - | %/mA |
| Quiescent Current (No Load) | 1.0 | 1.4 | - | mA |
| Load Current (Source) | 10 | 21 | - | mA |
| Operating Temperature Range | -40 | - | +85 | °C |
| Package Options | - | - | DIP-8, SO-8 | - |
Key Features
- OUTPUT VOLTAGE: +5V ±0.2% max
- EXCELLENT TEMPERATURE STABILITY: 10ppm/°C max (–40°C to +85°C)
- LOW NOISE: 10µVPP max (0.1Hz to 10Hz)
- EXCELLENT LINE REGULATION: 0.01%/V max
- EXCELLENT LOAD REGULATION: 0.008%/mA max
- LOW SUPPLY CURRENT: 1.4mA max
- SHORT-CIRCUIT PROTECTED: Indefinite short-circuit duration to ground or VIN
- WIDE SUPPLY RANGE: 8V to 40V
- INDUSTRIAL TEMPERATURE RANGE: –40°C to +85°C
- PACKAGE OPTIONS: DIP-8, SO-8
Applications
- Precision Regulators
- Constant Current Source/Sink
- Digital Voltmeters
- V/F Converters
- A/D and D/A Converters
- Precision Calibration Standard
- Test Equipment
- Portable Instrumentation
- Temperature Transducers
Q & A
- What is the output voltage of the REF02BU/2K5?
The output voltage of the REF02BU/2K5 is +5V ±0.2% max.
- What is the temperature drift of the REF02BU/2K5?
The temperature drift is 10ppm/°C max over the temperature range of –40°C to +85°C.
- What is the noise level of the REF02BU/2K5?
The noise level is 10µVPP max from 0.1Hz to 10Hz.
- What are the line and load regulation specifications of the REF02BU/2K5?
The line regulation is 0.01%/V max, and the load regulation is 0.008%/mA max.
- What is the quiescent current of the REF02BU/2K5?
The quiescent current is 1.4mA max.
- Is the REF02BU/2K5 short-circuit protected?
Yes, the REF02BU/2K5 is short-circuit protected with indefinite short-circuit duration to ground or VIN.
- What are the package options available for the REF02BU/2K5?
The package options are DIP-8 and SO-8.
- What is the operating temperature range of the REF02BU/2K5?
The operating temperature range is –40°C to +85°C.
- Can the output voltage of the REF02BU/2K5 be adjusted?
Yes, the output voltage can be externally adjusted over a ±6% range with minimal effect on temperature stability.
- What are some typical applications of the REF02BU/2K5?
Typical applications include precision regulators, constant current source/sink, digital voltmeters, V/F converters, A/D and D/A converters, precision calibration standard, test equipment, portable instrumentation, and temperature transducers.
