Overview
The ADR291ERZ-REEL7 is a precision voltage reference IC produced by Analog Devices Inc. It is part of the ADR291 family, which utilizes the XFET reference circuit architecture. This device is designed to provide a stable and accurate output voltage of 2.5 V, making it ideal for low-power applications, including battery-powered instrumentation and data converters. The ADR291ERZ-REEL7 is known for its low noise, low thermal hysteresis, and excellent long-term stability, making it a reliable choice for various electronic systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage (VOUT) | IOUT = 0 mA | 2.493 | 2.5 | 2.507 | V |
| Initial Accuracy (VOERR) | ±0.08% | ||||
| Temperature Coefficient | 10 ppm/°C | ||||
| Noise (0.1Hz to 10Hz) | 50 µVp-p | ||||
| Input Voltage (VS) | 3 V | 15 V | |||
| Supply Current (IS) | TA = 25°C | 9 µA | 12 µA | 15 µA | |
| Output Current (IOUT) | 5 mA | ||||
| Operating Temperature (TA) | -40°C | 125°C | |||
| Package | 8-SOIC |
Key Features
- Low Noise and High Accuracy: The ADR291ERZ-REEL7 features low noise and high accuracy, with an initial accuracy of ±0.08% and a temperature coefficient of 10 ppm/°C.
- Micropower Consumption: It has a very low quiescent current of 12 µA, making it suitable for battery-powered devices.
- Wide Operating Range: The device operates over a wide input voltage range of 3 V to 15 V and an extended industrial temperature range of -40°C to +125°C.
- Low Thermal Hysteresis: It exhibits low thermal hysteresis and excellent long-term stability, ensuring reliable performance over time.
- Compact Packaging: Available in an 8-lead SOIC package, which is convenient for surface mount applications.
Applications
- Data Converters: The ADR291ERZ-REEL7 is well-suited for use with analog-to-digital and digital-to-analog converters, such as the AD7701, due to its low supply voltage and high accuracy.
- Battery-Powered Instrumentation: Its low power consumption makes it ideal for handheld, battery-operated equipment.
- Portable Equipment: It can be used as a voltage regulator for portable equipment, ensuring stable and accurate voltage references.
- High Voltage Floating Current Source: The device can be used in applications requiring high voltage floating current sources and Kelvin connections.
Q & A
- What is the output voltage of the ADR291ERZ-REEL7?
The output voltage of the ADR291ERZ-REEL7 is 2.5 V.
- What is the quiescent current of the ADR291ERZ-REEL7?
The quiescent current is 12 µA.
- What is the temperature coefficient of the ADR291ERZ-REEL7?
The temperature coefficient is 10 ppm/°C.
- What is the input voltage range of the ADR291ERZ-REEL7?
The input voltage range is from 3 V to 15 V.
- What is the maximum output current of the ADR291ERZ-REEL7?
The maximum output current is 5 mA.
- What are the typical applications of the ADR291ERZ-REEL7?
Typical applications include data converters, battery-powered instrumentation, and portable equipment.
- What package types are available for the ADR291ERZ-REEL7?
The device is available in an 8-lead SOIC package.
- What is the operating temperature range of the ADR291ERZ-REEL7?
The operating temperature range is from -40°C to +125°C.
- Is the ADR291ERZ-REEL7 suitable for low-power applications?
Yes, it is highly suitable due to its low quiescent current and low noise characteristics.
- What is the noise performance of the ADR291ERZ-REEL7 in the 0.1Hz to 10Hz range?
The noise performance in the 0.1Hz to 10Hz range is 50 µVp-p.
