Overview
The ADR444BRZ-REEL7 is an ultralow noise, LDO XFET voltage reference produced by Analog Devices Inc. This component is designed to offer high accuracy, low temperature drift, and excellent noise performance, making it ideal for precision signal conversion applications. The ADR444BRZ-REEL7 utilizes Analog Devices' temperature drift curvature correction and extra implanted junction FET (XFET) technology to minimize voltage change vs. temperature nonlinearity. It operates with a low supply voltage headroom of 500 mV, which is a significant advantage over traditional buried Zener references.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADR444BRZ-REEL7 |
| Package | SOIC-8 |
| Output Voltage | 4.096V ±0.04% (±1.6mV max) |
| Supply Voltage Range | 4.6V to 18V |
| Output Current | Source: +10mA, Sink: -5mA |
| Temperature Coefficient | 3ppm/°C max (-40°C to +125°C) |
| Ripple Rejection Ratio | -80dB at fIN = 1KHz, VIN = 4.6V to 18V, TA = 25°C |
| Voltage Noise | 1.8µV p-p at 0.1Hz to 10Hz, VIN = 4.6V to 18V, TA = 25°C |
| Turn On Settling Time | 10µs at VIN = 4.6V to 18V, TA = 25°C |
| Line Regulation | +20ppm/V max (-40°C to +125°C) |
| Load Regulation | ±50ppm/mA (ILOAD = 0mA to -5mA, VIN = 5.5V, -40°C to +125°C) |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- Ultralow Noise: The ADR444BRZ-REEL7 features ultralow noise performance, with a voltage noise of 1.8µV p-p at 0.1Hz to 10Hz.
- High Accuracy: It offers high accuracy with an initial output voltage accuracy of ±0.04% (±1.6mV max).
- Low Temperature Drift: The component has a low temperature coefficient of 3ppm/°C max over the operating temperature range of -40°C to +125°C.
- Current Sink and Source Capability: It can source up to +10mA and sink up to -5mA of output current.
- Low Supply Voltage Headroom: The device operates with a low supply voltage headroom of 500 mV, making it more efficient than traditional buried Zener references.
Applications
- Precision Data Acquisition Systems: Ideal for high-end data acquisition systems requiring precise voltage references.
- High Resolution Data Converters: Suitable for applications needing high resolution and low noise.
- Battery-Powered Instrumentation: Used in portable and battery-powered instruments where low power consumption is crucial.
- Medical Instruments: Applied in portable medical instruments and other medical applications requiring high precision.
- Military Communication and Avionics: Supports defense and aerospace applications, including military communication and avionics systems.
- Industrial Process Control Systems: Used in industrial process control systems that require precise voltage references.
- Optical Control Circuits: Suitable for optical networks and control circuits.
Q & A
- What is the output voltage of the ADR444BRZ-REEL7?
The output voltage of the ADR444BRZ-REEL7 is 4.096V with an initial accuracy of ±0.04% (±1.6mV max).
- What is the supply voltage range for the ADR444BRZ-REEL7?
The supply voltage range for the ADR444BRZ-REEL7 is from 4.6V to 18V.
- What are the current sink and source capabilities of the ADR444BRZ-REEL7?
The ADR444BRZ-REEL7 can source up to +10mA and sink up to -5mA of output current.
- What is the temperature coefficient of the ADR444BRZ-REEL7?
The temperature coefficient of the ADR444BRZ-REEL7 is 3ppm/°C max over the operating temperature range of -40°C to +125°C.
- What is the ripple rejection ratio of the ADR444BRZ-REEL7?
The ripple rejection ratio of the ADR444BRZ-REEL7 is -80dB at fIN = 1KHz, VIN = 4.6V to 18V, TA = 25°C.
- What is the voltage noise of the ADR444BRZ-REEL7?
The voltage noise of the ADR444BRZ-REEL7 is 1.8µV p-p at 0.1Hz to 10Hz, VIN = 4.6V to 18V, TA = 25°C.
- What is the turn-on settling time of the ADR444BRZ-REEL7?
The turn-on settling time of the ADR444BRZ-REEL7 is 10µs at VIN = 4.6V to 18V, TA = 25°C.
- What are the typical applications of the ADR444BRZ-REEL7?
The ADR444BRZ-REEL7 is typically used in precision data acquisition systems, high resolution data converters, battery-powered instrumentation, medical instruments, and military communication and avionics systems..
- What package type does the ADR444BRZ-REEL7 come in?
The ADR444BRZ-REEL7 comes in an 8-lead SOIC-N package..
- What is the operating temperature range of the ADR444BRZ-REEL7?
The operating temperature range of the ADR444BRZ-REEL7 is -40°C to +125°C..
