Overview
The ADR292GR, produced by Analog Devices Inc., is a low noise, micropower precision voltage reference that utilizes the XFET® reference circuit. This architecture offers significant performance improvements over traditional band gap and buried Zener-based references, including lower voltage noise, very low and ultralinear temperature drift, low thermal hysteresis, and excellent long-term stability.
The ADR292GR provides a stable and accurate output voltage of 4.096 V, making it suitable for a variety of applications, especially in battery-powered instrumentation due to its low quiescent current of 12 μA.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | IOUT = 0 mA | 4.093 | 4.096 | 4.099 | V |
| Initial Accuracy | VOERR | IOUT = 0 mA | -3 | - | 6 | mV |
| Temperature Coefficient | - | - | - | - | 8, 15, 25 | ppm/°C |
| Line Regulation | ∆VOUT/∆VIN | IOUT = 0 mA, 2.7 V to 15 V | 30 | - | 100 | ppm/V |
| Load Regulation | ∆VOUT/∆ILOAD | VS = 5.0 V, IOUT = 0 mA to 5 mA | 20 | - | 200 | ppm/mA |
| Supply Current | IS | TA = 25°C | 9 | 12 | 15 | μA |
| Output Current | IOUT | - | - | - | 5 | mA |
| Operating Temperature | TA | - | -40 | - | 125 | °C |
| Noise (0.1 Hz to 10 Hz) | - | - | - | - | 12 | μVp-p |
Key Features
- Low Noise: The ADR292GR features low noise performance, with 12 μVp-p noise from 0.1 Hz to 10 Hz, making it suitable for high-precision applications.
- High Accuracy: Available in three electrical grades offering initial output accuracies of ±3 mV, ±4 mV, and ±6 mV maximum.
- Low Quiescent Current: Consumes only 12 μA of supply current, ideal for battery-powered devices.
- Wide Temperature Range: Operates over an extended industrial temperature range of -40°C to +125°C.
- High Output Current: Capable of delivering up to 5 mA of output current.
- Low Thermal Hysteresis and Drift: Exhibits very low and ultralinear temperature drift and low thermal hysteresis, ensuring stable output voltage.
Applications
- Portable Instrumentation: Ideal for battery-powered instrumentation due to its low power consumption and high accuracy.
- Precision Reference for 3 V and 5 V Systems: Suitable for use in systems requiring stable and accurate voltage references.
- A/D and D/A Converter Reference: Well-suited for use with analog-to-digital and digital-to-analog converters, especially in low-power applications.
- Solar Powered Applications: Can be used in solar-powered systems where low power consumption is critical.
- Loop-Current Powered Instruments: Applicable in loop-current powered instruments where precision and low noise are essential.
Q & A
- What is the output voltage of the ADR292GR?
The output voltage of the ADR292GR is 4.096 V.
- What is the quiescent current of the ADR292GR?
The quiescent current is 12 μA.
- What are the available electrical grades for the ADR292GR?
The available electrical grades offer initial output accuracies of ±3 mV, ±4 mV, and ±6 mV maximum.
- What is the operating temperature range of the ADR292GR?
The operating temperature range is -40°C to +125°C.
- What is the maximum output current of the ADR292GR?
The maximum output current is 5 mA.
- What are the typical noise levels of the ADR292GR?
The noise level is 12 μVp-p from 0.1 Hz to 10 Hz.
- What are the package options for the ADR292GR?
The device is available in 8-lead SOIC, 8-lead TSSOP, and 3-lead TO-92 packages.
- Is the ADR292GR suitable for battery-powered devices?
Yes, it is ideal for battery-powered devices due to its low quiescent current.
- What are some common applications of the ADR292GR?
Common applications include portable instrumentation, precision references for 3 V and 5 V systems, A/D and D/A converters, solar-powered applications, and loop-current powered instruments.
- What is the line regulation of the ADR292GR?
The line regulation is typically 30 ppm/V.
- What is the load regulation of the ADR292GR?
The load regulation is typically 30 ppm/mA.
