ADA4522-1ARZ-RL7 - 55V Zero Drift Op Amp | Analog Devices
MPN: ADA4522-1ARZ-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 ADA4522-1ARZ-RL7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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ADA4522-1ARZ-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4522-1ARZ
✅ Drop-In✓ In Stock
$1.42 / Unit
View Datasheet →ADA4522-2ARZ-R7
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4522-1ARZ-RL7 Maximum Ratings & Electrical Characteristics
| Number of Channels | 1 |
| Supply Voltage Range | 4.5 V to 55 V |
| Maximum Offset Voltage | 2.5 µV |
| Offset Voltage Drift | 0.012 µV/°C |
| Voltage Noise Density | 5.8 nV/√Hz at 1 kHz |
| Gain Bandwidth Product | 6.5 MHz |
| Slew Rate | 1.5 V/µs |
| Input Common-Mode Range | Ground sensing (includes negative rail) |
| Output Type | Rail-to-Rail |
| Supply Current (per channel) | 1.5 mA |
| Operating Temperature Range | -40°C to +125°C |
| Package | 8-Lead SOIC (SOIC-8) |
| Mounting Type | Surface Mount |
| EMI Enhanced | Yes |
| RoHS Status | Compliant |
ADA4522-1ARZ-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 |
| Pin 5 | +IN B — Non-inverting input of amplifier B (not used in single version) |
| Pin 6 | -IN B — Inverting input of amplifier B (not used in single version) |
| Pin 7 | OUT B — Output of amplifier B (not used in single version) |
| 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
ADA4522-1ARZ-RL7 is suitable for 6 applications: Precision Weigh Scales, Thermocouple Signal Conditioning, Medical Instrumentation, Industrial Process Control, Battery-Powered Systems, Automotive Sensor Interfaces.
Precision Weigh Scales
The ADA4522-1ARZ-RL7's ultra-low offset voltage (2.5 µV) and drift (0.012 µV/°C) ensure accurate measurement of load cell outputs. Its ground-sensing inputs allow direct connection to the sensor bridge, and the rail-to-rail output maximizes ADC input range. The wide supply range (up to 55V) accommodates industrial excitation voltages, while the low noise (5.8 nV/√Hz) preserves signal integrity. This makes it ideal for high-resolution weigh scales requiring long-term stability.
Recommended
Thermocouple Signal Conditioning
Thermocouple outputs are low-level (µV) and require amplification with minimal offset error. The ADA4522-1ARZ-RL7's zero-drift architecture eliminates offset drift, ensuring accurate temperature measurement over time. Its low noise density (5.8 nV/√Hz) and EMI enhancement reduce interference in industrial environments. The wide supply range supports both 5V and 24V systems, and the rail-to-rail output interfaces directly with ADCs. This makes it a robust choice for industrial temperature monitoring.
Recommended
Medical Instrumentation
In medical devices like patient monitors and diagnostic equipment, precision and reliability are critical. The ADA4522-1ARZ-RL7's low offset and drift ensure accurate biopotential measurements (ECG, EEG). Its low power consumption (1.5 mA) is suitable for battery-powered portable devices. The ground-sensing input allows single-supply operation, simplifying design. The wide temperature range (-40°C to +125°C) ensures operation in various clinical environments. This makes it ideal for high-accuracy medical instrumentation.
Recommended
Industrial Process Control
Industrial process control systems require amplifiers that maintain accuracy over wide temperature ranges and in noisy environments. The ADA4522-1ARZ-RL7's zero-drift performance ensures stable operation from -40°C to +125°C. Its EMI enhancement reduces the need for external filtering, simplifying PCB design. The wide supply range (up to 55V) is compatible with 24V industrial buses. The rail-to-rail output allows direct interface with ADCs and microcontrollers. This makes it a reliable choice for process control loops.
Recommended
Battery-Powered Systems
The ADA4522-1ARZ-RL7's low supply current (1.5 mA) and wide supply range (4.5V to 55V) make it ideal for battery-powered devices. Its rail-to-rail output maximizes dynamic range with low supply voltages. The ground-sensing input allows operation with a single cell. The zero-drift architecture ensures accuracy as battery voltage declines. This makes it suitable for portable instruments, wireless sensors, and other energy-constrained applications.
Recommended
Automotive Sensor Interfaces
Automotive applications demand high reliability and precision over extreme temperatures. The ADA4522-1ARZ-RL7's wide supply range (up to 55V) handles automotive battery voltage transients. Its zero-drift performance ensures accurate sensor readings (pressure, temperature) over the vehicle's lifetime. The EMI enhancement improves immunity to electromagnetic interference from motors and ignition systems. The -40°C to +125°C temperature range covers under-hood environments. This makes it suitable for automotive sensor interfaces.
Recommended
Recommended Products Summary
Engineering reference data for ADA4522-1ARZ-RL7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADA4522-1ARZ-R7 | ADA4522-1ARZ | ADA4522-2ARZ-R7 | ADA4522-1ARMZ-R7 |
|---|---|---|---|---|---|
| Package | SOIC-8 | SOIC-8 | SOIC-8 | SOIC-8 | MSOP-8 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 1 | 1 | 1 | 2 | 1 |
| Supply Voltage Range | 4.5V to 55V | 4.5V to 55V | 4.5V to 55V | 4.5V to 55V | 4.5V to 55V |
| Offset Voltage (max) | 2.5 µV | 2.5 µV | 2.5 µV | 2.5 µV | 2.5 µV |
| Voltage Noise Density | 5.8 nV/√Hz | 5.8 nV/√Hz | 5.8 nV/√Hz | 5.8 nV/√Hz | 5.8 nV/√Hz |
| Gain Bandwidth Product | 6.5 MHz | 6.5 MHz | 6.5 MHz | 6.5 MHz | 6.5 MHz |
| Supply Current (per channel) | 1.5 mA | 1.5 mA | 1.5 mA | 1.5 mA | 1.5 mA |
Key Differentiators
- Ultra-low offset voltage and drift (vs OPA2188AIDR)
- Wider supply voltage range (vs LTC2057HV)
- EMI enhancement (vs OPA2188AIDR)
Design Notes
The ADA4522-1ARZ-RL7 operates from 4.5V to 55V. For best performance, use a low-noise power supply and place 0.1 µF ceramic capacitors close to the V+ and V- pins. For high-frequency noise, add a 10 µF tantalum capacitor in parallel. The device has a supply current of 1.5 mA, so power dissipation is minimal, but ensure the supply voltage does not exceed the absolute maximum rating of 60V.
For optimal performance, place the ADA4522-1ARZ-RL7 on a PCB with a solid ground plane. Keep input traces short and shielded to minimize noise pickup. Use separate analog and digital ground planes if mixed-signal circuitry is present. The SOIC-8 package has a thermal pad on the bottom; solder it to a copper pour for improved thermal performance, though power dissipation is low.
Avoid exceeding the input common-mode range, which includes the negative rail but not the positive rail. The device is not intended for use as a comparator without external protection; if used as such, add series resistors to limit current. Also, ensure the output is not shorted to ground for extended periods, as this can cause overheating. For EMI-sensitive applications, the device's built-in EMI enhancement reduces the need for external filtering, but additional filtering may be required in harsh environments.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified; for automotive, consider ADA4522-1ARZ-RL7 is not qualified, but other ADI parts may be.
