ADR39x: Micro-Power, Low Noise Precision Voltage References with Shutdown
Features
- Low Output Noice: 5µVpp (0.1Hz to 10Hz)
- Excellent Temperature Coefficient:
A-Grade: 25ppm/°CB-Grade: 9ppm/°C - No External Capacitator Required
- Low Dropout Performance 300mV
- Supply Current:
3µA Maximum in Shutdown
120µA Maximum in Operation - Output Current Capability: 5mA
- Tiny ThinSOT-23-5Package
- Wide Temperature Range: -40°C to +125°C
General Description
The ADR39x is a family of precision band gap voltage reference featuring low power and low noise capabilities in the tiny Thin SOT-23-5 package. Utilizing ADI's patented temperature drift curvature correction techniques, the ADR390 achieves a low 9 ppm/°C of temperature drift performance.
The ADR39x micro-power, low dropout voltage reference provides a stable output voltage from a minimum supply of 300mV above the output. This advanced design eliminates the need for external capacitors, which reduces PCB space and cost. This combination of low power, and tiny package makes the ADR390 ideally suited for battery operated applications.
| All Members of the ADR39x Family | |||||
|---|---|---|---|---|---|
| Model | Vout | Accuracy | Tempco | 1Ku Price | |
| ADR390A | 2.048V | ±0.6% | 25ppm/°C | $0.77 | |
| ADR390B | 2.048V | ±0.4% | 9ppm/°C | $1.19 | |
| ADR391A | 2.5V | ±0.6% | 25ppm/°C | $0.77 | |
| ADR391B | 2.5V | ±0.4% | 9ppm/°C | $1.19 | |
| ADR392A | 4.096V | ±0.6% | 25ppm/°C | $0.77 | |
| ADR392B | 4.096V | ±0.5% | 9ppm/°C | $1.19 | |
| ADR395A | 5.0V | ±0.6% | 25ppm/°C | $0.77 | |
| ADR395B | 5.0V | ±0.5% | 9ppm/°C | $1.19 | |