Overview
The ADA4522-4ARUZ-R7, produced by Analog Devices Inc., is a quad-channel zero-drift operational amplifier. This device is part of the ADA4522 series, which includes single, dual, and quad-channel configurations. It is designed for high accuracy over time, temperature, and voltage conditions, making it suitable for a wide range of applications. The ADA4522-4 features low noise, low power consumption, ground sensing inputs, and rail-to-rail output, ensuring precise signal amplification and reproduction.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 4 | - |
| Operating Voltage Range | 4.5 V to 55 V, ±2.25 V to ±27.5 V | - |
| Bandwidth | 2.7 MHz | - |
| Slew Rate | 1.7 V/μs | - |
| Input Offset Voltage | Typically 5 μV | VSY = 5.0 V, VCM = VSY/2, TA = 25°C |
| Input Bias Current | Typically 10 pA | VSY = 5.0 V, VCM = VSY/2, TA = 25°C |
| Temperature Range | -40°C to +125°C | - |
| Package Type | 14-lead TSSOP | - |
Key Features
- Zero Drift: The ADA4522-4 features a zero-drift architecture, ensuring minimal offset voltage and drift over time and temperature.
- Low Noise: It has a flat noise spectrum density at lower frequencies, making it suitable for applications requiring low noise.
- Rail-to-Rail Output: The device offers rail-to-rail output, allowing it to drive loads connected to the same power supply voltage.
- Ground Sensing Inputs: The inputs are ground sensing, which is beneficial for applications where the input signal is referenced to ground.
- High Immunity to EMI: On-chip filtering enhances the device's immunity to electromagnetic interference (EMI).
- Low Power Consumption: The ADA4522-4 operates with low power consumption, making it energy-efficient.
Applications
- Current Sensing: The ADA4522-4 is suitable for current sensing applications, particularly in low-side current sensing circuits.
- Instrumentation Amplifiers: It can be used as the first stage of a 3-op-amp instrumentation amplifier to amplify low-level signals from sensors like load cells.
- Signal Conditioning: The device is ideal for signal conditioning in various industrial and medical applications where high accuracy and low noise are critical.
- Automotive and Industrial Control Systems: Its wide operating temperature range and high immunity to EMI make it suitable for use in harsh environments.
Q & A
- What is the operating voltage range of the ADA4522-4ARUZ-R7?
The operating voltage range is from 4.5 V to 55 V, and it can also operate with dual supplies of ±2.25 V to ±27.5 V.
- What is the bandwidth of the ADA4522-4ARUZ-R7?
The bandwidth of the ADA4522-4ARUZ-R7 is 2.7 MHz.
- What is the slew rate of the ADA4522-4ARUZ-R7?
The slew rate is 1.7 V/μs.
- What is the typical input offset voltage of the ADA4522-4ARUZ-R7?
The typical input offset voltage is 5 μV.
- What is the input bias current of the ADA4522-4ARUZ-R7?
The input bias current is typically 10 pA.
- What is the temperature range for the ADA4522-4ARUZ-R7?
The device operates over the extended industrial temperature range of -40°C to +125°C.
- What package type is the ADA4522-4ARUZ-R7 available in?
The device is available in a 14-lead TSSOP package.
- What are some common applications for the ADA4522-4ARUZ-R7?
Common applications include current sensing, instrumentation amplifiers, signal conditioning, and use in automotive and industrial control systems.
- Does the ADA4522-4ARUZ-R7 have high immunity to electromagnetic interference (EMI)?
Yes, the device features on-chip filtering to achieve high immunity to EMI.
- Is the ADA4522-4ARUZ-R7 suitable for low-noise applications?
Yes, it has a flat noise spectrum density at lower frequencies, making it suitable for low-noise applications.
