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电压基准
GT431A
The GT431A and GT432A device are three-terminal adjustable shunt regulators, with a guaranteed thermal stability over applicable temperature ranges. The output voltage can be set to any value between VREF (approximately 2.5V) and 36V with two external resistors. These devices provide a very sharp turn-on characteristic, making these devices excellent replacement for Zener diodes in many applications. Both the GT431A and GT432A devices are specified with an initial tolerance of 0.5% at 25°C.
特性
- Reference voltage tolerance 0.5% at 25°C
- Programmable output voltage to 36V
- Low dynamic output impedance 0.2Ω
- Sink current capability of 1mA to 100mA
- Equivalent full-range temperature coefficient of
50ppm/°C maximum
-Temperature compensated for operation over full
rated operating temperature range
- Low output noise voltage
- Fast turn on response
- Operation from -40°C to 125°C
- Lead-Free packages: SOT23
应用
- Adjustable voltage and current referencing
- Power supply
- Zener replacement
- Voltage monitoring
- Comparator with integrated reference
- As precision voltage reference
