Overview
The ADA4622-2BRZ-R7 is a precision operational amplifier produced by Analog Devices Inc. It is part of the ADA4622 series, which represents the next generation of single-supply, rail-to-rail output (RRO) precision JFET input op amps, building upon the legacy of the AD822. This amplifier is designed for high precision and low noise, making it suitable for a wide range of applications requiring high input common-mode voltage range and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | JFET Amplifier | |
| Number of Channels | 2 | |
| Gain Bandwidth Product (GBP) | 7.8 MHz | |
| Slew Rate (SR) | 21 V/µs (Low to High), -16 V/µs (High to Low) | V/µs |
| Common Mode Rejection Ratio (CMRR) | 87 dB | dB |
| Input Bias Current (IB) | 2 pA | pA |
| Input Offset Voltage (VOS) | ±0.8 mV (A Grade), ±0.35 mV (B Grade) | mV |
| Input Offset Current (IOS) | ±10 pA | pA |
| Supply Voltage Range | 4.5 V to 30 V | V |
| Operating Supply Current | 665 µA (Typical) | µA |
| Output Current per Channel | 20 mA | mA |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package / Case | SOIC-8 | |
| Mounting Style | SMD/SMT |
Key Features
- Rail-to-Rail Output: The ADA4622-2BRZ-R7 features rail-to-rail output, allowing the output voltage to swing from the negative supply to the positive supply, enhancing its versatility in various applications.
- Low Noise and High Precision: This amplifier has reduced voltage noise, both broadband and 1/f noise, and improved DC precision with half the offset voltage and added thermal drift specifications compared to its predecessors.
- High Input Common-Mode Voltage Range: The input voltage range includes the negative supply, making it ideal for applications requiring high input common-mode voltage range.
- EMI Filters: Integrated EMI filters increase signal robustness against closely located switching noise sources.
- Strong Output Drive: The amplifier has a strong output drive capability, enabling it to drive the inputs of modern single-ended successive approximation register analog-to-digital converters (SAR ADCs) efficiently.
Applications
- Industrial Automation: Suitable for precision measurement and control systems in industrial automation due to its high precision and low noise characteristics.
- Medical Devices: Used in medical devices that require high accuracy and low noise, such as ECG and EEG systems.
- Aerospace and Defense: Ideal for applications in aerospace and defense where high reliability and precision are critical.
- Test and Measurement Equipment: Employed in various test and measurement equipment where precision and stability are essential.
- Audio and Video Systems: Can be used in audio and video systems requiring low noise and high fidelity signal processing.
Q & A
- What is the amplifier type of the ADA4622-2BRZ-R7?
The ADA4622-2BRZ-R7 is a JFET amplifier.
- What is the gain bandwidth product (GBP) of the ADA4622-2BRZ-R7?
The gain bandwidth product (GBP) is 7.8 MHz.
- What is the slew rate of the ADA4622-2BRZ-R7?
The slew rate is 21 V/µs (low to high) and -16 V/µs (high to low).
- What is the common-mode rejection ratio (CMRR) of the ADA4622-2BRZ-R7?
The CMRR is 87 dB.
- What is the input bias current of the ADA4622-2BRZ-R7?
The input bias current is 2 pA.
- What is the supply voltage range of the ADA4622-2BRZ-R7?
The supply voltage range is from 4.5 V to 30 V.
- What is the operating temperature range of the ADA4622-2BRZ-R7?
The operating temperature range is from -40°C to +125°C.
- What package type is the ADA4622-2BRZ-R7 available in?
The ADA4622-2BRZ-R7 is available in an SOIC-8 package.
- Does the ADA4622-2BRZ-R7 have built-in EMI filters?
Yes, the ADA4622-2BRZ-R7 has integrated EMI filters to increase signal robustness.
- What are some typical applications of the ADA4622-2BRZ-R7?
Typical applications include industrial automation, medical devices, aerospace and defense, test and measurement equipment, and audio and video systems.
