ADA4522-2ARZ - Dual 55V Zero-Drift Op Amp | Analog Devices
MPN: ADA4522-2ARZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.56 | $2.56 |
| 10 | $2.31 | $23.10 |
| 100 | $1.85 | $185.00 |
| 500 | $1.58 | $790.00 |
| 1,000 | $1.35 | $1,350.00 |
Drop-in alternatives for ADA4522-2ARZ — 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:
ADA4522-1ARZ
⚡ Same Package✓ In Stock
$1.42 / Unit
View Datasheet →OPA2192IDR
✅ Drop-In📋 Reference alternative (not in catalog)
OPA2188AIDR
✅ Drop-In📋 Reference alternative (not in catalog)
AD8628ARZ
✅ Drop-In✓ In Stock
$1.49 / Unit
View Datasheet →ADA4522-2ARZ Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Supply Voltage Range | 4.5 V to 55 V |
| Dual Supply Voltage Range | ±2.25 V to ±27.5 V |
| Input Offset Voltage | 1.5 µV (typical) |
| Offset Drift | 0.002 µV/°C |
| Voltage Noise Density | 5.8 nV/√Hz at 1 kHz |
| Gain-Bandwidth Product | 2.7 MHz |
| Slew Rate | 1.2 V/µs |
| Supply Current per Amplifier | 1.2 mA |
| Output Type | Rail-to-Rail |
| Input Type | Ground-Sensing |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
ADA4522-2ARZ 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) |
| 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 is suitable for 6 applications: Precision Data Acquisition, Weigh Scale Systems, Thermocouple and RTD Signal Conditioning, Battery Monitoring, Industrial Process Control, Automotive Sensor Interfaces.
Precision Data Acquisition
The ADA4522-2ARZ's ultra-low offset voltage (1.5 µV) and drift (0.002 µV/°C) ensure accurate signal conditioning in data acquisition systems. Its wide supply range (up to 55V) accommodates industrial sensor rails, while the rail-to-rail output maximizes ADC dynamic range. The low noise (5.8 nV/√Hz) preserves signal integrity in high-resolution measurements, making it ideal for multichannel DAQ front-ends.
Recommended
Weigh Scale Systems
In weigh scale applications, the ADA4522-2ARZ provides the low offset drift and low noise needed for accurate load cell measurements. Its ground-sensing inputs allow true zero-input operation, and the EMI immunity prevents interference from nearby motors or power lines. The wide supply range supports bridge excitation voltages up to 10V, ensuring stable, repeatable weight readings over time and temperature.
Recommended
Thermocouple and RTD Signal Conditioning
The ADA4522-2ARZ is well-suited for thermocouple and RTD conditioning due to its ultra-low offset drift (0.002 µV/°C) and low noise (5.8 nV/√Hz). It amplifies small thermocouple voltages (µV range) with minimal error, and its wide supply range allows direct connection to 24V industrial loops. The rail-to-rail output ensures full-scale swing into ADC inputs, while EMI filtering rejects interference from industrial environments.
Recommended
Battery Monitoring
The ADA4522-2ARZ's wide supply range (up to 55V) makes it ideal for monitoring individual cells in battery stacks. Its low offset voltage (1.5 µV) ensures accurate voltage sensing, and the low supply current (1.2 mA per amplifier) minimizes power drain in battery-powered systems. The ground-sensing inputs allow measurement of cell voltages referenced to ground, while EMI immunity prevents errors from switching converters.
Recommended
Industrial Process Control
In industrial process control, the ADA4522-2ARZ provides the precision and robustness required for 4-20 mA loops and sensor interfaces. Its wide supply range (up to 55V) handles high-voltage industrial rails, and the extended temperature range (-40°C to +125°C) ensures reliable operation in harsh environments. The EMI immunity and low drift maintain accuracy over long periods, reducing calibration frequency.
Recommended
Automotive Sensor Interfaces
The ADA4522-2ARZ is suitable for automotive sensor interfaces, such as pressure and position sensors, due to its wide supply range (up to 55V) and extended temperature range. Its low offset and drift ensure accurate measurements over the vehicle's operating conditions, while EMI immunity protects against interference from ignition systems and motors. The SOIC-8 package is automotive-grade compatible.
Recommended
Recommended Products Summary
Engineering reference data for ADA4522-2ARZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4522-2ARMZ-R7 | ADA4522-1ARZ | OPA2192IDR | OPA2188AIDR | AD8628ARZ |
|---|---|---|---|---|---|---|
| Package | 8-SOIC | 8-MSOP | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Texas Instruments | Analog Devices |
| Number of Channels | 2 | 2 | 1 | 2 | 2 | 2 |
| Supply Voltage Range | 4.5V to 55V | 4.5V to 55V | 4.5V to 55V | 4.5V to 36V | 4.5V to 36V | 2.7V to 5V |
| Input Offset Voltage | 1.5 µV | 1.5 µV | 1.5 µV | 5 µV | 25 µV | 1 µV |
| Offset Drift | 0.002 µV/°C | 0.002 µV/°C | 0.002 µV/°C | 0.005 µV/°C | 0.03 µV/°C | 0.01 µV/°C |
| Voltage Noise Density | 5.8 nV/√Hz | 5.8 nV/√Hz | 5.8 nV/√Hz | 5.5 nV/√Hz | 8.5 nV/√Hz | 22 nV/√Hz |
| Gain-Bandwidth Product | 2.7 MHz | 2.7 MHz | 2.7 MHz | 10 MHz | 2 MHz | 2.5 MHz |
Key Differentiators
- Wider supply voltage range (55V) compared to OPA2192IDR (36V) (vs OPA2192IDR)
- Lower offset drift (0.002 µV/°C) than OPA2188AIDR (0.03 µV/°C) (vs OPA2188AIDR)
- EMI-enhanced with on-chip filtering (vs AD8628ARZ)
Design Notes
Provide proper decoupling on the power supply pins. Place a 0.1 µF ceramic capacitor close to each supply pin (V+ and V-) and a 10 µF tantalum capacitor for bulk decoupling. This ensures stable operation and reduces noise coupling from the supply rails.
Place bypass capacitors as close to the device pins as possible to minimize parasitic inductance. Use a ground plane to reduce noise and improve EMI performance. Keep input traces short and shielded to avoid picking up interference.
Do not exceed the absolute maximum supply voltage of 60V. Ensure the input common-mode voltage stays within the specified range, including ground. Avoid driving capacitive loads without a series resistor, as this can cause oscillation.
Compliance Information
RoHS compliant and lead-free per Analog Devices product page. AEC-Q100 qualification not specified for this part.