Overview
The ADA4522-4ARZ is a quad-channel, zero-drift operational amplifier designed by Analog Devices Inc. This device is optimized for total accuracy over time, temperature, and voltage conditions, making it ideal for applications requiring high precision and low noise. It features ground-sensing inputs and rail-to-rail output, which are crucial for amplifying very small input signals and accurately reproducing larger signals in various applications.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 4 |
| Package Type | 14-lead SOIC |
| Operating Voltage Range | 4.5V to 55V, ±2.25V to ±27.5V |
| Bandwidth | 2.7 MHz |
| Slew Rate | 1.4 V/µs (typical at RL = 10Kohm, CL = 50pF, AV = 1, VS = 5V, VCM = 2.5V, TA = 25°C) |
| Input Offset Voltage (Vos) | 1.5 µV |
| Input Bias Current | 50 pA |
| Common Mode Rejection Ratio (CMRR) | 145 dB (VCM = 0 to 3.5V, VSY = 5V, TA = 25°C) |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- Zero-drift technology for ultra-low offset voltage and drift.
- Low noise and power consumption.
- Ground-sensing inputs and rail-to-rail output.
- High common-mode rejection ratio (CMRR) of 145 dB.
- Fast slew rate of 1.4 V/µs.
- Wide operating voltage range from 4.5V to 55V.
- High gain bandwidth product of 2.7 MHz.
- On-chip filtering for high immunity to electromagnetic interference (EMI).
Applications
- Inductance, capacitance, and resistance (LCR) meter/megohmmeter front-end amplifiers.
- Load cell and bridge transducers.
- Magnetic force balance scales.
- High precision shunt current sensing.
- Thermocouple/RTD sensors.
- Programmable logic controller input and output amplifiers.
- Precision instrumentation and sensor signal conditioning.
- Medical equipment, audio equipment, and automotive electronics where high accuracy and stability are required.
Q & A
- What is the ADA4522-4ARZ?
The ADA4522-4ARZ is a quad-channel, zero-drift operational amplifier designed by Analog Devices Inc.
- What is the operating voltage range of the ADA4522-4ARZ?
The operating voltage range is from 4.5V to 55V, and it can also operate with dual supplies of ±2.25V to ±27.5V.
- What is the typical slew rate of the ADA4522-4ARZ?
The typical slew rate is 1.4 V/µs at RL = 10Kohm, CL = 50pF, AV = 1, VS = 5V, VCM = 2.5V, TA = 25°C.
- What is the input offset voltage (Vos) of the ADA4522-4ARZ?
The input offset voltage (Vos) is 1.5 µV.
- What is the common mode rejection ratio (CMRR) of the ADA4522-4ARZ?
The CMRR is 145 dB (VCM = 0 to 3.5V, VSY = 5V, TA = 25°C).
- What are the typical applications of the ADA4522-4ARZ?
Typical applications include LCR meter/megohmmeter front-end amplifiers, load cell and bridge transducers, magnetic force balance scales, high precision shunt current sensing, thermocouple/RTD sensors, and programmable logic controller input and output amplifiers.
- What is the operating temperature range of the ADA4522-4ARZ?
The operating temperature range is from -40°C to +125°C.
- What package types are available for the ADA4522-4ARZ?
The ADA4522-4ARZ is available in a 14-lead SOIC package.
- Does the ADA4522-4ARZ have on-chip filtering for EMI immunity?
Yes, the ADA4522-4ARZ uses on-chip filtering to achieve high immunity to electromagnetic interference (EMI).
- What is the gain bandwidth product of the ADA4522-4ARZ?
The gain bandwidth product is 2.7 MHz.
