ADA4522-2ARZ-RL7 - Dual 55V Zero-Drift Op Amp | Analog Devices
MPN: ADA4522-2ARZ-RL7 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.19 | $2,190.00 |
Drop-in alternatives for ADA4522-2ARZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADA4522-2ARZ
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View Datasheet →ADA4522-2ARZ-R7
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ADA4522-1ARZ
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View Datasheet →OPA2189
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LTC2057
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View Datasheet →ADA4522-2ARZ-RL7 Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Supply Voltage Range | 4.5 V to 55 V |
| Supply Voltage Range (Dual) | ±2.25 V to ±27.5 V |
| Offset Voltage (Max) | 5 µV |
| Offset Voltage Drift (Max) | 22 nV/°C |
| Voltage Noise Density (Typ) | 5.8 nV/√Hz |
| Input Bias Current (Typ) | 50 pA |
| Noise (0.1 Hz to 10 Hz) | 117 nV p-p typical |
| Output Type | Rail-to-Rail |
| Input Type | Ground-Sensing |
| EMI Immunity | Enhanced (on-chip filtering) |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-Lead SOIC (SOIC-8) |
| Mounting Type | Surface Mount |
| Amplifier Type | Zero-Drift |
ADA4522-2ARZ-RL7 Pin Configuration
| Pin 1 | OUT A — Output of amplifier A |
| Pin 2 | -IN A — Inverting input of amplifier A |
| Pin 3 | +IN A — Non-inverting input of amplifier A |
| Pin 4 | V- — Negative supply (or ground in single-supply operation) |
| Pin 5 | +IN B — Non-inverting input of amplifier B |
| Pin 6 | -IN B — Inverting input of amplifier B |
| Pin 7 | OUT B — Output of amplifier B |
| Pin 8 | V+ — Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
ADA4522-2ARZ-RL7 is suitable for 6 applications: Precision Instrumentation, Medical Devices, Industrial Process Control, Automotive Sensor Interfaces, Test and Measurement, Energy Harvesting Systems.
Precision Instrumentation
The ADA4522-2ARZ-RL7's ultra-low offset voltage (5 µV max) and drift (22 nV/°C) make it ideal for precision instrumentation such as data acquisition systems, weigh scales, and bridge amplifiers. Its low noise (5.8 nV/√Hz) ensures accurate measurement of small signals, while the wide supply range (up to 55V) accommodates industrial sensor interfaces. The ground-sensing inputs allow true single-supply operation, simplifying design in battery-powered instruments.
Recommended
Medical Devices
In medical devices such as patient monitors and diagnostic equipment, the ADA4522-2ARZ-RL7 provides the accuracy and low noise required for biosignal amplification. Its low input bias current (50 pA) minimizes errors when interfacing with high-impedance electrodes, and the rail-to-rail output maximizes dynamic range for ADC interfaces. The extended temperature range (-40°C to +125°C) ensures reliable operation in clinical environments.
Recommended
Industrial Process Control
The ADA4522-2ARZ-RL7 is well-suited for industrial process control loops, where long-term stability and accuracy are critical. Its zero-drift architecture eliminates offset drift over temperature, reducing calibration requirements. The wide supply voltage (up to 55V) allows direct interfacing with 24V industrial buses, and the enhanced EMI immunity ensures reliable operation in noisy factory environments. The device can be used in PID controllers, valve positioners, and pressure transmitters.
Recommended
Automotive Sensor Interfaces
For automotive sensor interfaces, the ADA4522-2ARZ-RL7 offers the precision and robustness needed for applications like battery monitoring, motor control, and pressure sensing. Its wide supply range (up to 55V) handles automotive battery voltage transients, and the low offset drift ensures accurate measurement over the -40°C to +125°C temperature range. The ground-sensing inputs enable high-side and low-side current sensing without level shifting.
Recommended
Test and Measurement
In test and measurement equipment, the ADA4522-2ARZ-RL7 provides the accuracy and low noise required for high-resolution measurements. Its low offset and drift enable precise DC measurements, while the wide bandwidth and rail-to-rail output support AC signal conditioning. The device is ideal for use in digital multimeters, source measure units, and precision voltage references. The enhanced EMI immunity ensures accurate readings in electrically noisy environments.
Recommended
Energy Harvesting Systems
The ADA4522-2ARZ-RL7 is suitable for energy harvesting systems where low power consumption and high accuracy are essential. Its low quiescent current and wide supply range allow operation from variable energy sources such as solar cells and thermoelectric generators. The zero-drift architecture ensures accurate signal conditioning of small sensor outputs, and the rail-to-rail output maximizes the usable signal range for energy-efficient ADCs.
Recommended
Recommended Products Summary
Engineering reference data for ADA4522-2ARZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4522-2ARZ | ADA4522-2ARZ-R7 | OPA2189 | LTC2057 |
|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Analog Devices |
| Number of Channels | 2 | 2 | 2 | 2 | 2 |
| Supply Voltage Range | 4.5V to 55V | 4.5V to 55V | 4.5V to 55V | 4.5V to 36V | 4.75V to 36V |
| Offset Voltage (Max) | 5 µV | 5 µV | 5 µV | 4 µV | 0.5 µV |
| Offset Drift (Max) | 22 nV/°C | 22 nV/°C | 22 nV/°C | 0.04 µV/°C | 0.01 µV/°C |
| Voltage Noise Density | 5.8 nV/√Hz | 5.8 nV/√Hz | 5.8 nV/√Hz | 5.2 nV/√Hz | 7.5 nV/√Hz |
| Input Bias Current | 50 pA | 50 pA | 50 pA | 150 pA | 20 pA |
Key Differentiators
- Wide supply voltage range up to 55V (vs OPA2189)
- Enhanced EMI immunity (vs LTC2057)
- Ground-sensing inputs (vs OPA2189)
Design Notes
The ADA4522-2ARZ-RL7 operates from 4.5V to 55V. For best performance, use a low-noise power supply and place a 0.1µF ceramic capacitor close to each supply pin (V+ and V-). For single-supply operation, connect V- to ground and ensure the input common-mode range includes ground (ground-sensing inputs).
To minimize noise pickup, keep the input traces short and shielded. Use a solid ground plane under the device and avoid routing high-frequency digital signals near the inputs. The ADA4522-2 has enhanced EMI immunity, but proper layout still improves performance. Place decoupling capacitors as close as possible to the supply pins.
Do not exceed the absolute maximum supply voltage of 60V. Also, ensure the input voltages do not exceed the supply rails. The device has internal ESD protection, but external protection diodes may be needed for harsh environments. For high-impedance sources, consider the input bias current (50 pA) and use a guard ring if necessary.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Lead-free finish.
