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Analog Devices Inc. ADA4522-1ARZ-RL
- Part No.:
- ADA4522-1ARZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4522-1ARZ-RL.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,824
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Product details
Overview
ADA4522-1ARZ-RL from Analog Devices is a single-channel, zero-drift, rail-to-rail output operational amplifier optimized for ultra-precision DC and low-frequency signal conditioning. 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 rails - enabling high-accuracy current sensing in battery management systems and bridge transducer interfaces.
For engineers reviewing the ADA4522-1ARZ-RL datasheet, ADA4522-1ARZ-RL pinout, ADA4522-1ARZ-RL application, or ADA4522-1ARZ-RL equivalent, key selection criteria include its EMI-hardened input structure, AEC-Q100 qualification for automotive use, guaranteed performance across −40°C to +125°C, and compatibility with ground-sensing, single-supply configurations up to 55 V.
Technical Context
The ADA4522-1ARZ-RL employs auto-zeroing architecture with chopper-stabilized input stage to suppress 1/f noise and minimize drift over temperature and time. Its integrated EMI filters provide >72 dB rejection at 400 MHz, making it robust in noisy automotive and industrial environments.
It supports true single-supply operation with input common-mode range extending to ground and rail-to-rail output swing (e.g., 20 mV above V– and 4.97 V below V+ at 5 V supply), while maintaining 125 dB minimum open-loop gain and 135 dB CMRR over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 5 µV maximum - ensures sub-µV-level baseline error in precision shunt current sensing at 100 A with 100 µΩ resistor. |
| Offset Drift | 22 nV/°C maximum - limits total drift to <1.2 µV over −40°C to +125°C, critical for uncalibrated RTD or load cell front-ends. |
| Voltage Noise Density | 5.8 nV/√Hz typical at 1 kHz - enables resolution of <10 nV signals in 10 Hz bandwidth without excessive filtering. |
| Supply Range | 4.5 V to 55 V single supply - supports direct interface with 12 V, 24 V, and 48 V industrial buses and OBC high-side monitoring. |
| CMRR | 135 dB minimum (−40°C to +125°C) - rejects common-mode interference in high-gain bridge amplifiers with >3000:1 differential-to-common-mode ratio. |
| EMI Rejection | 85 dB at 2.4 GHz - maintains DC accuracy in proximity to Bluetooth/WiFi modules without external shielding or ferrites. |
| Unity-Gain Bandwidth | 3 MHz typical - allows stable closed-loop operation with 100 kΩ/100 pF sensor networks and fast settling (<4 µs to 0.1%) for PLC analog inputs. |
Pinout & Package
ADA4522-1ARZ-RL is supplied in an 8-lead SOIC package (R suffix), RoHS-compliant, with standard JEDEC footprint and 1.27 mm pitch.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | Not internally connected - no routing or thermal tie required; floating per datasheet Figure 3. |
| 2 | −IN | Inverting input - accepts differential feedback network; clamped to rails via internal diodes (±10 mA absolute max). |
| 3 | +IN | Noninverting input - high-impedance node (100 GΩ common-mode RIN at 30 V); EMI-filtered per on-chip design. |
| 4 | V− | Negative supply terminal - must be connected even in single-supply mode (e.g., tied to ground); supports rail-to-rail input down to V−. |
| 6 | OUT | Amplifier output - drives 10 kΩ loads to within 20 mV of rails at 5 V; capable of ±14 mA continuous output current. |
| 7 | V+ | Positive supply terminal - accepts up to 60 V absolute max; PSRR ≥150 dB minimizes supply ripple coupling into output. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Auto-zeroing + chopper stabilization eliminates 1/f noise and guarantees <6.5 µV max VOS over full temperature range. |
| Integrated EMI filtering | On-chip RC network provides >72 dB rejection at 400 MHz, eliminating need for external RF filters in automotive sensor modules. |
| Rail-to-rail output | Swings to within 20 mV of V− and 30 mV of V+ at 5 V supply, maximizing dynamic range in single-supply data acquisition systems. |
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C) qualification confirmed - suitable for under-hood BMS, traction inverter current monitors, and OBC control loops. |
| Wide supply range | Operates from 4.5 V to 55 V single supply or ±2.25 V to ±27.5 V dual supply - compatible with 5 V microcontrollers and 48 V EV power domains. |
Applications
| High-Precision Shunt Current Sensing | Bridge Transducer Signal Conditioning |
|---|---|
|
Use Scenario: Bidirectional current measurement in 48 V battery management systems using 50 µΩ shunt resistors. IC Role / Device Role / Timing Role: Precision difference amplifier with ground-referenced input and rail-to-rail output driving ADC reference buffer. Use Value: 5 µV offset enables ±1% full-scale accuracy at 200 A without calibration; 22 nV/°C drift prevents thermal-induced gain error in pack-level monitoring. |
Use Scenario: Amplification of mV-level outputs from quarter-bridge strain gauges in industrial weighing platforms. IC Role / Device Role / Timing Role: Low-noise, high-CMRR instrumentation front-end with programmable gain and EMI-hardened inputs. Use Value: 135 dB CMRR rejects cable-borne noise in long-haul sensor wiring; 117 nVp-p (0.1–10 Hz) preserves microstrain resolution without oversampling. |
| Automotive Temperature Sensing | Programmable Logic Controller Analog I/O |
|
Use Scenario: Linearization and amplification of Pt100 RTD signals in engine coolant and cabin HVAC modules. IC Role / Device Role / Timing Role: Constant-current excitation buffer and low-drift signal conditioner interfacing to SAR ADC. Use Value: 50 pA typical input bias current avoids self-heating errors in 1 mA RTD excitation; AEC-Q100 Grade 1 ensures reliability at 125°C junction temp. |
Use Scenario: Isolated analog input channel for 0–10 V or 4–20 mA field signals in industrial PLC backplanes. IC Role / Device Role / Timing Role: Input protection, level-shifting, and anti-alias filtering stage preceding isolation amplifier and ADC. Use Value: 55 V max supply enables direct connection to 24 V loop-powered sensors; integrated EMI filters meet IEC 61000-4-3 Class B immunity requirements. |
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-R7 | Lower supply range (2.7–5.5 V), lower noise (4.2 nV/√Hz), but not AEC-Q100 qualified and limited to 5.5 V max. | Suitable for portable medical devices and low-voltage data loggers, not automotive or 24 V+ industrial systems. | Select ADA4528-1ARMZ-R7 only when supply is ≤5.5 V and AEC-Q100 is unnecessary; ADA4522-1ARZ-RL remains preferred for 12–48 V automotive/industrial use. |
| OPA189IDBVR | Wider GBW (14 MHz), lower quiescent current (500 µA), but higher offset drift (0.005 µV/°C = 5 nV/°C) and no integrated EMI filter. | Better for high-speed precision DAC buffers; lacks EMI hardening needed in motor drive or charging environments. | Choose OPA189IDBVR for bandwidth-critical applications with clean PCB layout; ADA4522-1ARZ-RL is superior where EMI immunity and ultra-low drift dominate. |
Compared with ADA4528-1ARMZ-R7 and OPA189IDBVR, ADA4522-1ARZ-RL uniquely combines 55 V operation, AEC-Q100 qualification, and on-chip EMI filtering - making it the only option among the three validated for unshielded placement near traction inverters or onboard chargers.
Availability
ADA4522-1ARZ-RL is available at Aetrix Electronics and suitable for high-precision shunt current sensing, bridge transducer signal conditioning, and automotive temperature sensing requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4522-1ARZ-RL 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 ultra-precision, low-drift signal conditioning in harsh electromagnetic and thermal environments - targeting automotive BMS, industrial process control, and test equipment where long-term accuracy is non-negotiable.
FAQ
What is the maximum supply voltage rating for ADA4522-1ARZ-RL?
The ADA4522-1ARZ-RL has an absolute maximum supply voltage of 60 V, with recommended operating range from 4.5 V to 55 V single supply or ±2.25 V to ±27.5 V dual supply. Operation beyond 55 V is not characterized and may impact long-term reliability or parametric guarantees specified in the Rev I datasheet.
Does ADA4522-1ARZ-RL support true single-supply operation with input referenced to ground?
Yes, ADA4522-1ARZ-RL supports true single-supply operation: its input common-mode range extends to V− (including ground when V− = 0 V), and output swings rail-to-rail. At 5 V supply, input range is 0 V to 3.5 V and output delivers 20 mV to 4.98 V - enabling direct interface with ground-referenced sensors like shunts and RTDs.
Is ADA4522-1ARZ-RL qualified for automotive applications?
Yes, ADA4522-1ARZ-RL is AEC-Q100 qualified (Grade 1, −40°C to +125°C ambient), with full characterization across temperature, voltage, and lifetime stress tests per automotive reliability standards. This qualification covers the SOIC package variant (ARZ) and applies to all electrical specifications in the datasheet.
How does the integrated EMI filter in ADA4522-1ARZ-RL improve system-level robustness?
The ADA4522-1ARZ-RL incorporates on-chip RC filtering at both +IN and −IN pins, delivering ≥72 dB EMI rejection at 400 MHz and ≥85 dB at 2.4 GHz. This eliminates sensitivity to RF rectification that causes DC offset shifts in unfiltered op amps - allowing reliable operation near WiFi/BT antennas or switching power stages without added board area or cost.
What is the typical peak-to-peak voltage noise of ADA4522-1ARZ-RL in the 0.1 Hz to 10 Hz band?
The ADA4522-1ARZ-RL delivers 117 nVp-p typical voltage noise in the 0.1 Hz to 10 Hz band (AV = 100), as measured per standard low-frequency noise test conditions in the Rev I datasheet. This value is guaranteed across all supply voltages (5 V, 30 V, 55 V) and remains stable over temperature due to zero-drift architecture.
ADA4522-1ARZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-RL FAQ
1.How can I place an order for ADA4522-1ARZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4522-1ARZ-RL 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-RL reliable?
The price and inventory of ADA4522-1ARZ-RL 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-RL is usually 5 days.
3.What payment methods are accepted for ADA4522-1ARZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4522-1ARZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4522-1ARZ-RL?
ADA4522-1ARZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4522-1ARZ-RL 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-RL?
For technical support, including ADA4522-1ARZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4522-1ARZ-RL requirements.
6.How does Aetrix verify that ADA4522-1ARZ-RL is sourced from the original manufacturer or authorized distributors?
All ADA4522-1ARZ-RL 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-RL meets industry standards.
7.What is the process for return or replacement of ADA4522-1ARZ-RL?
All ADA4522-1ARZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADA4522-1ARZ-RL, 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-RL part is unused and in its original packaging.
Return procedure for ADA4522-1ARZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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