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Analog Devices Inc. ADA4522-1ARZ
- Part No.:
- ADA4522-1ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4522-1ARZ.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,096
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Product details
Overview
ADA4522-1ARZ from Analog Devices is a single-channel, zero-drift, rail-to-rail output operational amplifier optimized for precision DC-coupled signal conditioning in high-voltage industrial and automotive systems. It delivers 5 µV max offset voltage, 22 nV/°C max drift, 5.8 nV/√Hz typical voltage noise density, and operates from 4.5 V to 55 V supply - enabling accurate amplification of microvolt-level sensor outputs in battery management and shunt current sensing.
For engineers reviewing the ADA4522-1ARZ datasheet, ADA4522-1ARZ pinout, ADA4522-1ARZ application, or ADA4522-1ARZ equivalent, key selection criteria include its EMI-hardened architecture, −40°C to +125°C extended temperature rating, AEC-Q100 qualification, and verified performance at 5 V, 30 V, and 55 V supplies - critical for high-reliability front-end amplification in harsh environments.
Technical Context
The ADA4522-1ARZ employs auto-zeroing and chopper-stabilized architecture to achieve ultralow DC errors while maintaining low 1/f noise and broadband noise performance. Its integrated EMI filters suppress RF interference up to 2.4 GHz, with measured EMI rejection ratios of 85 dB at 2400 MHz.
It supports single-supply operation down to 4.5 V and up to 55 V, with input common-mode range extending to ground and rail-to-rail output swing. The device is unity-gain stable, features 3 MHz unity-gain crossover, and maintains >64° phase margin into 50 pF capacitive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 5 µV maximum - ensures sub-millivolt error in precision gain stages without calibration. |
| Offset Drift | 22 nV/°C maximum - enables stable DC accuracy over wide temperature ranges in unheated enclosures. |
| Voltage Noise Density | 5.8 nV/√Hz typical at 1 kHz - preserves SNR in low-frequency sensor interfaces like RTDs and load cells. |
| Supply Range | 4.5 V to 55 V - supports direct connection to 12 V, 24 V, 30 V, and 48 V industrial rails without regulation. |
| EMI Rejection Ratio | 85 dB at 2400 MHz - mitigates RF-induced offset shifts in noisy automotive or motor-control environments. |
| Output Drive | 14 mA continuous - sufficient to drive 10 kΩ loads with full rail-to-rail swing across temperature. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial edge-node applications. |
Pinout & Package
ADA4522-1ARZ is supplied in an 8-lead SOIC (R suffix) package with exposed pad for thermal enhancement. Pin 1 is marked by a notch or dot; pins are numbered counterclockwise from that corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | Not internally connected - must be left floating or tied to ground per layout best practices. |
| 2 | −IN | Inverting input - connects to feedback network in standard op-amp configurations. |
| 3 | +IN | Noninverting input - accepts high-impedance sensor signals with 100 GΩ common-mode input resistance. |
| 4 | V− | Negative supply terminal - supports ground-referenced single-supply operation or dual-supply negative rail. |
| 6 | OUT | Amplified output - delivers rail-to-rail swing with <50 mV low-state voltage at 125°C. |
| 7 | V+ | Positive supply terminal - accepts up to 55 V, enabling direct interface with high-voltage power rails. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Eliminates long-term drift and thermal hysteresis - critical for metrology-grade measurements over years of field use. |
| Integrated EMI filtering | On-chip RC filters on +IN and −IN inputs reject RF interference without external components, reducing board area and design risk. |
| Rail-to-rail output | Delivers >99% of supply rail swing - maximizes dynamic range in single-supply systems with limited headroom. |
| AEC-Q100 Grade 1 | Qualified for automotive applications up to +125°C junction temperature - suitable for OBC, BMS, and traction inverter monitoring. |
| Wide supply range | Operates from 4.5 V to 55 V - eliminates need for intermediate LDOs when interfacing with 12 V, 24 V, 36 V, or 48 V bus voltages. |
Applications
| High-Precision Shunt Current Sensing | Thermocouple / RTD Signal Conditioning |
|---|---|
Use Scenario: Amplifying mV-level voltage drops across 100 µΩ–10 mΩ shunts in battery pack cell monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low offset and drift to resolve sub-100 µA current changes. Use Value: Enables ±0.1% current measurement accuracy over −40°C to +85°C without recalibration. |
Use Scenario: Cold-junction compensation and linearization of thermocouple outputs or RTD bridge excitation. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end with ground-sensing inputs. Use Value: Reduces system-level temperature error to <0.05°C over full industrial temperature range. |
| Automotive On-Board Charger (OBC) | Programmable Logic Controller (PLC) Input Modules |
Use Scenario: Isolated voltage and current feedback in bidirectional AC/DC converters with 400 V–800 V DC-link monitoring. IC Role / Device Role / Timing Role: High-common-mode rejection amplifier driving isolated sigma-delta ADCs. Use Value: Maintains 135 dB CMRR at 53.5 V common-mode voltage - ensuring accurate sensing despite fast-switching noise. |
Use Scenario: Analog input conditioning for 4–20 mA loop receivers and sensor transmitters in factory automation. IC Role / Device Role / Timing Role: Rail-to-rail output buffer with EMI immunity for industrial I/O modules operating near VFDs and motors. Use Value: Prevents false triggering from 2.4 GHz Wi-Fi or Bluetooth interference in dense control cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4528-1ARMZ | Lower max supply (5.5 V), higher offset drift (0.005 µV/°C typ), same zero-drift architecture. | Targeted for low-voltage portable instrumentation - not rated for >12 V operation or automotive temperature range. | Select ADA4528-1ARMZ only for battery-powered, sub-6 V systems where ultra-low 1/f noise dominates requirements. |
| AD8628ARZ | Max supply 16 V, 1 µV max offset, 0.012 µV/°C drift, no EMI filtering, non-AEC-Q100. | Designed for general-purpose precision analog in commercial temperature range - lacks automotive qualification and high-voltage capability. | Choose AD8628ARZ for cost-sensitive, non-automotive applications below 16 V with less stringent EMI immunity needs. |
Compared with ADA4528-1ARMZ and AD8628ARZ, the ADA4522-1ARZ uniquely combines 55 V operation, AEC-Q100 Grade 1 qualification, and integrated EMI filtering - making it the only option among the three for high-voltage automotive and industrial sensor front-ends requiring long-term DC stability.
Availability
ADA4522-1ARZ is available at Aetrix Electronics and suitable for high-precision shunt current sensing, thermocouple/RTD signal conditioning, and automotive on-board charger feedback requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4522-1ARZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The ADA4522 family was designed specifically for high-accuracy, high-reliability signal conditioning in automotive, industrial, and energy infrastructure applications where long-term drift, EMI susceptibility, and wide supply range are critical constraints.
FAQ
What is the maximum supply voltage rating for the ADA4522-1ARZ?
The ADA4522-1ARZ has an absolute maximum supply voltage of 60 V, with guaranteed operation from 4.5 V to 55 V. At 55 V supply, it maintains 10 µV max offset voltage and 30 nV/°C max drift over −40°C to +125°C - enabling direct interface with 48 V battery systems and industrial HVDC rails without external regulation.
Does the ADA4522-1ARZ require external EMI filtering components?
No. The ADA4522-1ARZ integrates on-chip EMI filters on both +IN and −IN inputs, delivering 85 dB rejection at 2400 MHz. This eliminates the need for external RC networks or ferrite beads in most applications - simplifying layout and improving consistency across production units.
Is the ADA4522-1ARZ pin-compatible with other zero-drift op amps like the AD8628?
No. The ADA4522-1ARZ uses an 8-lead SOIC package with NIC pins (1, 5, 8), whereas the AD8628ARZ uses a standard 8-lead SOIC pinout with active functions on all pins. PCB redesign is required for substitution due to incompatible pin mapping and different supply voltage capabilities.
What is the output voltage swing specification for ADA4522-1ARZ at 55 V supply?
At 55 V supply and 10 kΩ load, the ADA4522-1ARZ delivers VOH ≥ 54.65 V and VOL ≤ 350 mV over −40°C to +125°C - achieving >99.3% rail-to-rail output swing. This allows full utilization of ADC input ranges in high-voltage data acquisition systems without level-shifting circuitry.
How does the ADA4522-1ARZ perform in high-common-mode voltage applications such as shunt sensing?
The ADA4522-1ARZ achieves 140 dB min CMRR at 53.5 V common-mode voltage and maintains >135 dB over temperature. Combined with 5 µV max offset, this enables accurate amplification of µV-level shunt signals in 48 V battery systems - even with fast-switching noise coupling onto the sense node.
ADA4522-1ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.7V/µs
- Gain Bandwidth Product:
- 2.7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 1.5 µV
- Current - Supply:
- 830µA
- Current - Output / Channel:
- 32 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 55 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADA4522-1ARZ FAQ
1.How can I place an order for ADA4522-1ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4522-1ARZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADA4522-1ARZ reliable?
The price and inventory of ADA4522-1ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4522-1ARZ is usually 5 days.
3.What payment methods are accepted for ADA4522-1ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4522-1ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4522-1ARZ?
ADA4522-1ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4522-1ARZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADA4522-1ARZ?
For technical support, including ADA4522-1ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4522-1ARZ requirements.
6.How does Aetrix verify that ADA4522-1ARZ is sourced from the original manufacturer or authorized distributors?
All ADA4522-1ARZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADA4522-1ARZ meets industry standards.
7.What is the process for return or replacement of ADA4522-1ARZ?
All ADA4522-1ARZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4522-1ARZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADA4522-1ARZ part is unused and in its original packaging.
Return procedure for ADA4522-1ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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