Overview
The ADA4522-1ARMZ from Analog Devices Inc. is a single-channel, zero-drift operational amplifier designed for high precision and low noise applications. This device is optimized for total accuracy over time, temperature, and voltage conditions, making it suitable for amplifying very small input signals and accurately reproducing larger signals. It operates over a wide voltage range of 4.5V to 55V and is compatible with various single-ended and dual supplies.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices |
| Part Number | ADA4522-1ARMZ |
| Package | 8-Lead MSOP |
| Operating Voltage Range | 4.5V to 55V, ±2.25V to ±27.5V |
| Temperature Range | -40°C to +125°C |
| Bandwidth | 2.7MHz (typical at unity gain) |
| Slew Rate | 1.4V/µs (typical at RL = 10Kohm, CL = 50pF, AV = 1, VS = 5V) |
| Input Offset Voltage | 5µV maximum (VSY = 5V, VCM = VSY/2 V, TA = 25°C) |
| Input Offset Voltage Drift | 15nV/°C maximum (VSY = 5V, VCM = VSY/2 V, TA = 25°C) |
| Input Bias Current | 150pA max (VSY=5V, VCM = VSY/2 V, TA=25°C) |
| Common Mode Rejection Ratio (CMRR) | 155dB (VCM = 0 to 3.5V, VSY = 5V, TA = 25°C) |
Key Features
- Zero drift and ultralow noise operation, making it ideal for high precision applications.
- Ground sensing inputs and rail-to-rail output.
- Integrated EMI filters for high immunity to electromagnetic interference.
- Single-supply operation with input voltage range including ground.
- Unity-gain stable.
- High open-loop gain and very low DC and AC errors.
- Thermal shutdown circuitry to prevent overheating.
Applications
- 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.
Q & A
- What is the operating voltage range of the ADA4522-1ARMZ?
The ADA4522-1ARMZ operates over a voltage range of 4.5V to 55V and is compatible with various single-ended and dual supplies. - What is the temperature range of the ADA4522-1ARMZ?
The device operates over a temperature range of -40°C to +125°C. - What is the bandwidth of the ADA4522-1ARMZ?
The bandwidth is typically 2.7MHz at unity gain. - What is the slew rate of the ADA4522-1ARMZ?
The slew rate is typically 1.4V/µs at RL = 10Kohm, CL = 50pF, AV = 1, VS = 5V. - What is the input offset voltage of the ADA4522-1ARMZ?
The input offset voltage is 5µV maximum (VSY = 5V, VCM = VSY/2 V, TA = 25°C). - Does the ADA4522-1ARMZ have integrated EMI filters?
Yes, the device has integrated EMI filters for high immunity to electromagnetic interference. - What are some common applications of the ADA4522-1ARMZ?
Common 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. - Is the ADA4522-1ARMZ unity-gain stable?
Yes, the device is unity-gain stable. - What is the common mode rejection ratio (CMRR) of the ADA4522-1ARMZ?
The CMRR is 155dB (VCM = 0 to 3.5V, VSY = 5V, TA = 25°C). - Does the ADA4522-1ARMZ have thermal shutdown circuitry?
Yes, the device has thermal shutdown circuitry to prevent overheating.
