Overview
The ADR445BRZ-REEL7 from Analog Devices Inc. is an ultralow noise, LDO XFET voltage reference integrated circuit. This device is characterized by its high accuracy, low temperature drift, and exceptional noise performance. It utilizes Analog Devices' temperature drift curvature correction and extra implanted junction FET (XFET) technology, making it ideal for precision signal conversion applications. The ADR445BRZ-REEL7 operates within a supply voltage range of 5.5V to 18V and features a fixed output voltage of 5V with an initial accuracy of ±2mV (0.04% max).
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADR445BRZ-REEL7 |
| Package | 8-lead SOIC-N |
| Output Voltage | 5V ±2mV (0.04% max) |
| Supply Voltage Range | 5.5V to 18V |
| Output Source Current | +10mA |
| Output Sink Current | −5mA |
| Temperature Coefficient | 3ppm/°C max (-40°C to +125°C) |
| Ripple Rejection Ratio | −80dB at fIN = 1KHz |
| Voltage Noise | 2.25µV p-p at 0.1Hz to 10Hz |
| Turn On Settling Time | 10µs |
| Line Regulation | +20ppm/V max |
| Load Regulation | ±50ppm/mA |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- Ultralow Noise: The ADR445BRZ-REEL7 features exceptional noise performance with a voltage noise of 2.25µV p-p at 0.1Hz to 10Hz.
- High Accuracy: It offers an initial accuracy of ±2mV (0.04% max) and a temperature coefficient of 3ppm/°C max.
- Low Temperature Drift: Utilizes temperature drift curvature correction and XFET technology to minimize voltage change vs. temperature nonlinearity.
- Current Sink and Source: Capable of sourcing up to +10mA and sinking up to −5mA.
- Low Supply Voltage Headroom: Operates with a supply voltage headroom as low as 500mV.
- High Ripple Rejection Ratio: Offers a ripple rejection ratio of −80dB at fIN = 1KHz.
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 accuracy and low noise.
- Battery-Powered Instrumentation: Used in portable instrumentation where low power consumption is crucial.
- Portable Medical Instruments: Applied in medical devices that require high precision and reliability.
- Industrial Process Control Systems: Utilized in industrial control systems for precise signal conversion.
- Optical Control Circuits: Employed in optical networks and control circuits.
Q & A
- What is the output voltage of the ADR445BRZ-REEL7?
The output voltage of the ADR445BRZ-REEL7 is 5V with an initial accuracy of ±2mV (0.04% max).
- What is the supply voltage range for the ADR445BRZ-REEL7?
The supply voltage range is from 5.5V to 18V.
- What is the temperature coefficient of the ADR445BRZ-REEL7?
The temperature coefficient is 3ppm/°C max over the temperature range of -40°C to +125°C.
- What is the ripple rejection ratio of the ADR445BRZ-REEL7?
The ripple rejection ratio is −80dB at fIN = 1KHz.
- What is the voltage noise of the ADR445BRZ-REEL7?
The voltage noise is 2.25µV p-p at 0.1Hz to 10Hz.
- What is the turn-on settling time of the ADR445BRZ-REEL7?
The turn-on settling time is 10µs.
- What are the key applications of the ADR445BRZ-REEL7?
Key applications include precision data acquisition systems, high resolution data converters, battery-powered instrumentation, portable medical instruments, industrial process control systems, and optical control circuits.
- What package type does the ADR445BRZ-REEL7 come in?
The ADR445BRZ-REEL7 comes in an 8-lead SOIC-N package.
- What is the operating temperature range of the ADR445BRZ-REEL7?
The operating temperature range is -40°C to +125°C.
- Does the ADR445BRZ-REEL7 have current sink and source capabilities?
Yes, it can source up to +10mA and sink up to −5mA.
