Overview
The REF02AU/2K5G4 is a precision 5V voltage reference produced by Texas Instruments. This component is part of the REF02 series, known for its excellent temperature stability, low noise, and high accuracy. The REF02AU/2K5G4 operates from a single supply with an input range of 8V to 40V and features a very low current drain of 1.4mA. It is ideal for applications requiring a stable and precise voltage reference, such as precision regulators, digital voltmeters, and analog-to-digital (A/D) and digital-to-analog (D/A) converters.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| OUTPUT VOLTAGE | ILOAD = 0mA | 4.985 | 5.0 | 5.015 | V |
| OUTPUT VOLTAGE DRIFT | –40°C to +85°C (TCVO) | 4 | 10 | 15 | ±ppm/°C |
| LONG-TERM STABILITY | 2000h Test | 100 | 100 | 50 | ±ppm |
| LOAD CURRENT (SOURCE) | 10 | 21 | mA | ||
| SHORT-CIRCUIT CURRENT | VOUT = 0 | 30 | mA | ||
| POWER DISSIPATION | No Load | 15 | 21 | mW | |
| TEMPERATURE RANGE | Specification | –40 | +85 | °C | |
| PACKAGE OPTIONS | SO-8, DIP-8 |
Key Features
- Output Voltage: +5V ±0.2% max
- Temperature Stability: 10ppm/°C max (–40°C to +85°C)
- Low Noise: 10µVPP max (0.1Hz to 10Hz)
- Line Regulation: 0.01%/V max
- Load Regulation: 0.008%/mA max
- Low Supply Current: 1.4mA max
- Short-Circuit Protected:
- Wide Supply Range: 8V to 40V
- Industrial Temperature Range: –40°C to +85°C
- Output Adjustment: ±6% range with minimal effect on temperature stability
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 REF02AU/2K5G4?
The output voltage is +5V ±0.2% max.
- What is the temperature stability of the REF02AU/2K5G4?
The temperature stability is 10ppm/°C max over the range of –40°C to +85°C.
- What is the noise level of the REF02AU/2K5G4?
The noise level is 10µVPP max from 0.1Hz to 10Hz.
- What is the line regulation of the REF02AU/2K5G4?
The line regulation is 0.01%/V max.
- What is the load regulation of the REF02AU/2K5G4?
The load regulation is 0.008%/mA max.
- What is the supply current of the REF02AU/2K5G4?
The supply current is 1.4mA max.
- Is the REF02AU/2K5G4 short-circuit protected?
Yes, it is short-circuit protected.
- What is the operating temperature range of the REF02AU/2K5G4?
The operating temperature range is –40°C to +85°C.
- Can the output voltage of the REF02AU/2K5G4 be adjusted?
Yes, the output voltage can be adjusted over a ±6% range with minimal effect on temperature stability.
- What are the typical applications of the REF02AU/2K5G4?
Typical applications include precision regulators, digital voltmeters, A/D and D/A converters, and test equipment.
