Overview
The ADA4622-1ARZ-R7 is a precision, single-supply, rail-to-rail output (RRO) operational amplifier produced by Analog Devices Inc. This amplifier is part of the next generation of the AD820/AD822/AD824 series, offering enhanced performance and reliability. It is designed to operate with a single supply voltage, making it versatile for various applications. The ADA4622-1 is known for its high precision, low noise, and robust dynamic performance, making it suitable for instrumentation, medical devices, and industrial automation.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Current per Amplifier | ISY | -40°C < TA < +125°C | 660 | 725 | 750 | µA |
| Shutdown Current | - | ADA4622-1 only | - | 50 | - | µA |
| Slew Rate (Low to High Transition) | SR | VOUT = ±3 V, RL = 2 kΩ, CL = 100 pF, AV = 1 | - | 21 | - | V/µs |
| Slew Rate (High to Low Transition) | SR | VOUT = ±3 V, RL = 2 kΩ, CL = 100 pF, AV = 1 | - | -16 | - | V/µs |
| Gain Bandwidth Product (GBP) | GBP | AV = 100, CL = 35 pF | - | 7.8 | - | MHz |
| Unity-Gain Crossover (UGC) | UGC | AV = 1 | - | 6.5 | - | MHz |
| -3 dB Bandwidth | - | AV = 1 | - | 10 | - | MHz |
| Phase Margin (ФM) | ФM | AV = 1 | - | 50 | - | Degrees |
| Settling Time (tS) to 0.1% | tS | VIN = 8 V step, RL = 2 kΩ, CL = 15 pF, AV = -1 | - | 1.5 | - | µs |
| Settling Time (tS) to 0.01% | tS | VIN = 8 V step, RL = 2 kΩ, CL = 15 pF, AV = -1 | - | 2 | - | µs |
| Output Voltage High (VOH) | VOH | ISOURCE = 1 mA, -40°C < TA < +125°C | 4.95 | 4.97 | 4.9 | V |
| Output Voltage Low (VOL) | VOL | ISINK = 1 mA, -40°C < TA < +125°C | -4.955 | -4.935 | -4.88 | V |
Key Features
- Precision and Low Noise: The ADA4622-1 offers high precision with low voltage noise and low input bias current, making it ideal for applications requiring high accuracy and low noise levels.
- Rail-to-Rail Output: The amplifier provides rail-to-rail output, allowing it to drive loads connected to the same supply voltage, enhancing its versatility in various applications.
- Single-Supply Operation: It can operate from a single supply voltage, simplifying the design and reducing the component count in many systems.
- High Dynamic Performance: With a high slew rate and gain bandwidth product, the ADA4622-1 is suitable for applications requiring fast signal processing and high bandwidth.
- Low Power Consumption: The amplifier has a low supply current and shutdown current, making it energy-efficient and suitable for battery-powered devices.
- Robust EMI Rejection: It features high EMI rejection ratios, ensuring reliable operation in noisy environments.
Applications
- Instrumentation: The ADA4622-1 is widely used in instrumentation applications such as data acquisition systems, medical devices, and test equipment due to its high precision and low noise characteristics.
- Industrial Automation: It is used in industrial automation for signal conditioning and amplification in control systems, sensors, and actuators.
- Medical Devices: The amplifier is suitable for medical devices requiring high accuracy and reliability, such as ECG and EEG systems.
- Aerospace and Defense: Its robust performance and reliability make it a candidate for use in aerospace and defense applications where high precision and durability are critical.
Q & A
- What is the typical supply current of the ADA4622-1?
The typical supply current of the ADA4622-1 is 725 µA.
- What is the slew rate of the ADA4622-1?
The slew rate of the ADA4622-1 is 21 V/µs for low to high transition and -16 V/µs for high to low transition.
- Does the ADA4622-1 support rail-to-rail output?
- What is the gain bandwidth product (GBP) of the ADA4622-1?
The gain bandwidth product (GBP) of the ADA4622-1 is 7.8 MHz at a gain of 100 and a load capacitor of 35 pF.
- What is the phase margin of the ADA4622-1?
The phase margin of the ADA4622-1 is 50 degrees.
- How long does it take for the ADA4622-1 to settle to 0.1% of the final value?
- What is the output voltage high (VOH) of the ADA4622-1?
- Does the ADA4622-1 have a shutdown feature?
- What are some common applications of the ADA4622-1?
- What is the EMI rejection ratio of the ADA4622-1?
