ADR381: 2.048 V and 2.5 V Bandgap Voltage References
The ADR380 and ADR381 are precision 2.048 V and 2.5 V bandgap voltage references respectively featuring high accuracy and stability and low power consumption in a tiny footprint. The wide operating ...More
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ADR381: 2.048 V and 2.5 V Bandgap Voltage References
Product Description
The ADR380 and ADR381 are precision 2.048 V and 2.5 V bandgap voltage references respectively featuring high accuracy and stability and low power consumption in a tiny footprint. The wide operating range and low power consumption make them ideal for 3 V - 5 V battery-powered applications.
The ADR380 and ADR381 are micropower, Low Dropout Voltage (LDV) devices that provide a stable output voltage from supplies as low as 300 mV above the output voltage. They are specified over the industrial (-40° to +85°C) temperature range.
The ADR380 and ADR381 combine best-in-class accuracy and tempco specs, low voltage operation and near-zero power dissipation shutdown in tiny 3-lead SOT-23 package. Ideal for battery management and precision data acquisition applications, it is the perfect choice for portable instrumentation, communications and computing devices that can't sacrifice low power for high performance.
- Data Sheet Rev A, 07/2004 (pdf 316kB)
- (About Data Sheets)
Quick Links
- Lead(Pb) - Free Data
- Application Notes (pdf 56kB)
Design Tools
Voltage Reference Wizard
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Features
- Initial Accuracy ±5 mV/±6 mV max
- Initial Accuracy Error: ±0.24%/±0.24%
- Low TCVo: 25 ppm/°C max
- Load Regulation: 70 ppm/mA
- Line Regulation: 25 ppm/V
- Low Power: 120 µA max
- High Output Current: 5mA
- Wide Operating Range:
2.4 V-18 V for ADR380
2.8 V-18 V for ADR381 - Wide Temperature Range:
-40°C to +85°C - Tiny 3-Lead SOT-23 Package with Standard Pinout
Verified Circuits Using This Part
Verified Circuits are designed for ease of use and proven to work by ADI applications engineers. To learn more about Verified Circuits from ADI, please visit Verified Circuits Home.
| Part# | Vout | Initial Accuracy (%) | Ref Out TC (ppm/C) | 0.1-10 Hz Noise (µV p-p) | Ref Output Current (mA) | Supply Voltage Range (V) | Temp Range(s) | Supply Current (max) | Reference Type | Package | Price* (1000-4999) | Product Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADR130 | +0.5/+1 Pin Programmable | 0.35 | 5 | 3 | 4 | 2V to 18V | -40 to +125 | 150µA | Series | TSOT | $0.92 | Precision, Sub-Band Gap, Series Voltage Reference |
| AD584 | +2.5/+5/+7.5/+10 Prog | 0.05 | 5 | 50 | 10 | +4.5 to +30 | -55 to +125, 0 to +70 | 1mA | Series-Multi/Select Out | DIP, TO-92 | $3.05 | 10.000 V, 7.500 V, 5.000 V and 2.500 V, Pin Programmable Precision Voltage Reference |
| ADR510 | 1.0 | 0.35 | 70 | 4 | n/a | n/a, shunt ref | -40 to +85 | n/a | Shunt | SOT23 | $0.60 | 1.0 V Precision, Low Noise, Shunt Voltage Reference |
| AD1580 | 1.2 | 0.08 | 50 | 5 | n/a | n/a, shunt ref | -40 to +85 | n/a | Shunt | SC70, SOT23 | $0.61 | 1.2 V Micropower, Precision Shunt Voltage Reference |
| ADR512 | 1.2 | 0.3 | 60 | 4 | n/a | n/a shunt ref | -40 to +85 | n/a | Shunt | SOT23 | $0.60 | 1.2 V Precision, Low Noise Shunt Voltage Reference |
| ADR280 | 1.2 | 0.4 | 5 | 2.2 | 100 | +2.4 to +5.5 | -40 to +85 | 16µA | Series | SC70, SOT23 | $0.76 | 1.20 V, Low Noise, Low Power, High PSRR, Precision Voltage Reference |
| AD589 | 1.2 | 1.2 | 10 | 5 | n/a | n/a, Shunt Type Reference | -55 to +125, 0 to +70 | 50µA | Shunt | Metal Can, SOIC | $1.33 | Two-Terminal IC 1.2 V Shunt Reference |
| ADR1581 | 1.25 | 0.12 | 50 | 4.5 | n/a | n/a, shunt ref | -40 to +85 | n/a | Shunt | SOT23 | $0.61 | 1.25 V Micropower, Precision Shunt Voltage Reference |
| ADR127 | 1.25 | 0.12 | 3 | 5 | 5 | +2.7 to +18 | -40 to +125 | 125µA | Series | TSOT | $0.92 | 1.25V, Precision Micropower LDO Voltage Reference |
| ADR827 | 1.25 | 0.4 | 15 | 8 | 5 | +2.7V to +15V | -40 to +125 | 400µA | Series |