Overview
The ADR512ARTZ-REEL7, produced by Analog Devices Inc., is a 1.2 V precision low noise shunt voltage reference designed for space-critical applications. This component is packaged in an ultracompact 3-lead SOT-23 package, making it ideal for applications where board space is limited. The ADR512 features high accuracy, low temperature drift, and ultralow noise performance, making it suitable for a variety of precision voltage reference needs.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | VO | 1.1965 | 1.2 | 1.2035 | V |
| Initial Accuracy | VOERR | -3.5 | +3.5 | mV | |
| Temperature Coefficient | TCVO | 60 | ppm/°C | ||
| Output Voltage Change vs. IIN | ΔVR | 3 | mV | ||
| Dynamic Output Impedance | ΔVR/ΔIR | 0.3 | Ω | ||
| Minimum Operating Current | IIN | 100 | μA | ||
| Voltage Noise (0.1 Hz to 10 Hz) | eN p-p | 4 | μV p-p | ||
| Turn-On Settling Time | tR | 10 | μs | ||
| Output Voltage Hysteresis | VO_HYS | 50 | ppm |
Key Features
- High Accuracy: The ADR512 offers an initial accuracy of ±0.3% and a temperature coefficient of 60 ppm/°C, ensuring stable output voltage across a wide temperature range.
- Low Noise: Ultralow noise performance with a voltage noise of 4 µV p-p from 0.1 Hz to 10 Hz.
- Compact Package: Available in a 3-lead SOT-23 package, making it suitable for space-critical applications.
- Adjustable Output Voltage: A TRIM terminal allows for adjustment of the output voltage over ±0.5% without affecting the temperature coefficient.
- Stable with Capacitive Load: The device is stable with any capacitive load and does not require an external capacitor for operation.
Applications
- Precision Voltage References: Ideal for applications requiring a precise and stable voltage reference, such as in analog-to-digital converters, digital-to-analog converters, and precision amplifiers.
- Adjustable Precision Voltage Sources: Can be used in conjunction with an op-amp to create an adjustable precision voltage source.
- Precise Negative Voltage References: Suitable for applications where a precise negative voltage reference is needed.
- Space-Critical Designs: The compact SOT-23 package makes it ideal for designs where board space is limited.
Q & A
- What is the output voltage of the ADR512ARTZ-REEL7? The output voltage is 1.2 V with an initial accuracy of ±0.3%.
- What is the temperature coefficient of the ADR512? The temperature coefficient is 60 ppm/°C.
- What is the minimum operating current of the ADR512? The minimum operating current is 100 µA.
- Does the ADR512 require an external capacitor for stability? No, the ADR512 is stable with any capacitive load and does not require an external capacitor.
- How can the output voltage of the ADR512 be adjusted? The output voltage can be adjusted using the TRIM terminal over ±0.5% without affecting the temperature coefficient.
- What is the voltage noise of the ADR512? The voltage noise is 4 µV p-p from 0.1 Hz to 10 Hz.
- What is the turn-on settling time of the ADR512? The turn-on settling time is 10 µs to within 0.1% of the output voltage.
- Can the ADR512 be used for negative voltage references? Yes, the ADR512 can be configured to provide a precise negative voltage reference.
- What package type is the ADR512 available in? The ADR512 is available in a 3-lead SOT-23 package.
- What are some common applications of the ADR512? Common applications include precision voltage references, adjustable precision voltage sources, and precise negative voltage references.
