Overview
The ADA4522-2ARMZ-RL is a dual-channel, zero-drift operational amplifier (op-amp) produced by Analog Devices Inc. This device is renowned for its ultra-low noise, rail-to-rail output, and enhanced electromagnetic interference (EMI) rejection. It is designed to operate over a wide range of supply voltages, including single supplies and dual supplies up to ±15 V, making it versatile for various applications. The ADA4522-2 is fully specified over the extended industrial temperature range of -40°C to +125°C, ensuring reliability in harsh environments.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 2 | - |
| Package Type | 8-Lead MSOP | - |
| Temperature Range | -40°C to +125°C | - |
| Supply Voltage | ±2.5 V, ±5 V, ±15 V | - |
| Input Offset Voltage | <1 μV | VSY = 5.0 V, VCM = VSY/2, TA = 25°C |
| Input Bias Current | <100 pA | VSY = 5.0 V, VCM = VSY/2, TA = 25°C |
| Noise Density | <10 nV/√Hz | f = 1 kHz, VSY = 5.0 V |
| EMI Rejection Ratio (EMIRR) | High immunity | Noninverting pin, various frequencies |
| Capacitive Load Stability | Up to 250 pF | - |
Key Features
- Zero Drift: The ADA4522-2 features zero-drift architecture, ensuring minimal offset voltage and drift over temperature and time.
- Ultra-Low Noise: It exhibits a flat noise spectrum density at lower frequencies, making it suitable for high-precision applications.
- EMI Enhanced: Integrated EMI filters at the input stage provide high immunity to electromagnetic interference.
- Rail-to-Rail Output: The op-amp offers rail-to-rail output, allowing it to drive loads connected to the supply rails.
- Wide Supply Range: It can operate with single supplies and dual supplies up to ±15 V.
- High Temperature Range: Fully specified over the extended industrial temperature range of -40°C to +125°C.
Applications
- Instrumentation Amplifiers: Often used as the first stage in instrumentation amplifiers to amplify low-level signals from sensors like load cells.
- Current Sensing: Suitable for low-side current sensing circuits due to its low offset voltage and drift.
- High-Precision Measurements: Ideal for applications requiring high accuracy and low noise, such as in medical devices, industrial control systems, and precision instrumentation.
- Automotive and Industrial Systems: Its robust temperature range and EMI immunity make it a good fit for harsh environment applications.
Q & A
- What is the ADA4522-2ARMZ-RL?
The ADA4522-2ARMZ-RL is a dual-channel, zero-drift operational amplifier produced by Analog Devices Inc. - What are the key features of the ADA4522-2?
Key features include zero drift, ultra-low noise, EMI enhanced input stage, rail-to-rail output, and a wide supply voltage range. - What is the temperature range of the ADA4522-2?
The ADA4522-2 is fully specified over the extended industrial temperature range of -40°C to +125°C. - What is the maximum capacitive load the ADA4522-2 can drive?
The ADA4522-2 can safely drive capacitive loads of up to 250 pF. - What are some common applications of the ADA4522-2?
Common applications include instrumentation amplifiers, current sensing circuits, high-precision measurements, and automotive and industrial systems. - How does the ADA4522-2 handle electromagnetic interference (EMI)?
The ADA4522-2 has integrated EMI filters at its input stage, providing high immunity to electromagnetic interference. - What is the input offset voltage of the ADA4522-2?
The input offset voltage is less than 1 μV under specified conditions. - Can the ADA4522-2 operate with dual supplies?
Yes, it can operate with dual supplies up to ±15 V. - What is the noise density of the ADA4522-2?
The noise density is less than 10 nV/√Hz at 1 kHz. - Is the ADA4522-2 suitable for harsh environments?
Yes, it is designed to operate in harsh environments due to its robust temperature range and EMI immunity.
