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Analog Devices Inc. ADA4522-2ARMZ-RL
- Part No.:
- ADA4522-2ARMZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADA4522-2ARMZ-RL.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,641
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Product details
Overview
ADA4522-2ARMZ-RL from Analog Devices is a dual-channel, zero-drift, rail-to-rail output operational amplifier optimized for high-precision 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 ±2.25 V to ±27.5 V or 4.5 V to 55 V supplies-enabling accurate amplification of microvolt-level sensor signals in automotive battery management and industrial shunt current sensing.
For engineers reviewing the ADA4522-2ARMZ-RL datasheet, ADA4522-2ARMZ-RL pinout, ADA4522-2ARMZ-RL application, or ADA4522-2ARMZ-RL equivalent, key selection criteria include its EMI-hardened architecture, AEC-Q100 qualification, −40°C to +125°C operation, and verified performance at 5 V, 30 V, and 55 V supply rails across temperature and common-mode voltage ranges.
Technical Context
The ADA4522-2ARMZ-RL employs auto-zeroing and chopper-stabilized techniques to achieve near-zero DC errors over time and temperature. Its integrated EMI filters suppress RF interference up to 2.4 GHz with >72 dB rejection, while on-chip input clamps protect against overvoltage transients beyond supply rails by ±300 mV.
Designed for single- or dual-supply operation, it supports rail-to-rail output swing (within 20–350 mV of rails depending on load and temperature) and ground-sensing inputs (IVR includes 0 V), enabling direct interfacing with low-voltage sensors and high-voltage industrial buses without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 5 µV maximum - ensures <10 µV total error contribution in precision gain stages at room temperature. |
| Offset Drift | 22 nV/°C maximum - maintains sub-1 µV drift over full −40°C to +125°C range for stable long-term calibration. |
| Voltage Noise Density | 5.8 nV/√Hz typical at 1 kHz - enables resolution of <100 nV signals in bandwidths up to 100 kHz without dominant noise floor. |
| Supply Range | 4.5 V to 55 V single or ±2.25 V to ±27.5 V dual - supports direct connection to 12 V, 24 V, 48 V, and 400 V OBC intermediate rails via isolated DC-DC. |
| Unity-Gain Bandwidth | 3 MHz typical - provides sufficient phase margin (64°) for stable unity-gain follower use with 50 pF capacitive loads. |
| EMI Rejection | 85 dB at 2.4 GHz - prevents RF rectification artifacts in automotive and industrial EMI-heavy environments. |
| Channel Separation | 98 dB at 10 kHz - minimizes crosstalk between dual channels in differential or multi-sensor configurations. |
Pinout & Package
ADA4522-2ARMZ-RL is housed in an 8-lead MSOP (RM suffix) package with exposed pad for thermal enhancement. The package measures 3.0 mm × 3.0 mm × 0.85 mm and is RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Output, Channel A | Amplified signal output capable of sourcing/sinking 14 mA; rail-to-rail swing within 20–350 mV of supply rails. |
| 2: −IN A | Inverting Input, Channel A | Differential input node with 50 pA typical bias current; clamped to rails ±300 mV for overvoltage protection. |
| 3: +IN A | Noninverting Input, Channel A | Differential input node with identical clamping and bias specs as −IN A; supports common-mode range from V− to V+ − 1.5 V. |
| 4: V− | Negative Supply Voltage | Reference for dual-supply operation; must be connected even in single-supply mode (e.g., tied to ground). |
| 5: +IN B | Noninverting Input, Channel B | Independent input for second channel; shares same EMI filtering and offset correction architecture as Channel A. |
| 6: −IN B | Inverting Input, Channel B | Matched performance to −IN A; enables true dual-channel instrumentation without inter-channel drift coupling. |
| 7: OUT B | Output, Channel B | Electrically isolated output stage; 98 dB channel separation ensures minimal signal leakage at 10 kHz. |
| 8: V+ | Positive Supply Voltage | Primary power rail; accepts up to 60 V absolute max; PSRR of 150–160 dB suppresses supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Auto-zeroing + chopping eliminates 1/f noise and reduces TCVOS to ≤22 nV/°C - critical for thermocouple and RTD front-ends. |
| Integrated EMI filters | On-die RC filtering achieves >72 dB EMI rejection from 400 MHz to 2.4 GHz - eliminates need for external ferrite beads in automotive ECUs. |
| Rail-to-rail output | Swings within 20 mV of V+ and 30 mV of V− at light loads - maximizes dynamic range in 3.3 V or 5 V data acquisition systems. |
| AEC-Q100 qualified | Rated for Grade 1 (−40°C to +125°C) operation with stress-tested reliability - approved for safety-critical traction inverter monitoring. |
| Wide supply range | Operates from 4.5 V to 55 V - supports direct integration into 48 V mild-hybrid battery systems and 55 V industrial PLC analog I/O modules. |
Applications
| High-Precision Shunt Current Sensing | Automotive Battery Management |
|---|---|
Use Scenario: Measuring bidirectional current in 48 V mild-hybrid vehicle battery packs using 50 µΩ shunts. IC Role / Device Role / Timing Role: Dual-channel op amp configured as differential amplifier (Ch A) and reference buffer (Ch B) for Kelvin-connected shunt. Use Value: 5 µV offset and 22 nV/°C drift ensure <0.5% full-scale error over temperature - meeting ASIL-B functional safety requirements. | Use Scenario: Monitoring cell voltage and temperature in 12S Li-ion battery modules for electric vehicles. IC Role / Device Role / Timing Role: Front-end amplifier for multiplexed thermistor and voltage divider signals feeding ADC inputs. Use Value: EMI-hardened design rejects switching noise from adjacent DC-DC converters and motor drivers - eliminating false fault triggers. |
| Industrial Load Cell Signal Conditioning | Programmable Logic Controller Input |
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from 100 kg–10 ton industrial load cells. IC Role / Device Role / Timing Role: Instrumentation-grade gain stage with matched dual channels for ratiometric bridge excitation and output buffering. Use Value: 117 nVp-p (0.1–10 Hz) and 135–155 dB CMRR enable 24-bit effective resolution without external auto-zeroing circuitry. | Use Scenario: Analog input conditioning for 4–20 mA current loop receivers in factory automation PLCs. IC Role / Device Role / Timing Role: Precision I/V converter and level-shifter driving SAR ADC reference and input pins. Use Value: 55 V max supply rating allows direct interface with 24 V loop-powered field devices - reducing external LDO count by one per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4522-2ARZ | Same silicon die, but in 8-lead SOIC (R suffix) package - larger footprint (5.0 mm × 6.2 mm), higher θJA (122°C/W vs. 194°C/W), no exposed thermal pad. | Preferred for prototyping or legacy PCBs with SOIC footprints; less suitable for thermally constrained 48 V BMS modules. | Select ADA4522-2ARZ only when board layout cannot accommodate MSOP or thermal performance is non-critical. |
| AD8629ARZ | Lower supply range (2.7–36 V), higher offset drift (0.2 µV/°C = 200 nV/°C), no AEC-Q100 qualification, no integrated EMI filters. | Suitable for commercial-grade industrial sensors but not automotive traction inverters or high-EMI factory floors. | Choose AD8629ARZ only for cost-sensitive, non-automotive designs where 55 V operation and 2.4 GHz EMI immunity are unnecessary. |
Compared with ADA4522-2ARZ and AD8629ARZ, the ADA4522-2ARMZ-RL uniquely combines 55 V operation, AEC-Q100 qualification, and 2.4 GHz EMI rejection in a thermally enhanced MSOP - making it the only option for next-generation 48 V automotive BMS and high-voltage industrial current sensing where accuracy, reliability, and noise immunity are co-constrained.
Availability
ADA4522-2ARMZ-RL is available at Aetrix Electronics and suitable for high-precision shunt current sensing, automotive battery management systems, and industrial load cell signal conditioning requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4522-2ARMZ-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, EMI-immune signal conditioning in automotive, industrial, and energy infrastructure applications - emphasizing long-term stability under harsh electrical and thermal conditions.
FAQ
What is the maximum supply voltage rating for ADA4522-2ARMZ-RL?
The ADA4522-2ARMZ-RL has an absolute maximum supply voltage of 60 V, with recommended operating range from 4.5 V to 55 V for single-supply use or ±2.25 V to ±27.5 V for dual-supply configurations. Exceeding 60 V risks permanent damage per the Absolute Maximum Ratings table.
Does ADA4522-2ARMZ-RL support true rail-to-rail input operation?
No - the ADA4522-2ARMZ-RL supports rail-to-rail *output*, but its input common-mode range extends to V− and up to V+ − 1.5 V (not full rail). For example, at V+ = 5 V and V− = 0 V, the input can accept signals from 0 V to 3.5 V, as specified in the IVR parameter.
Is ADA4522-2ARMZ-RL qualified for automotive applications?
Yes - the ADA4522-2ARMZ-RL is AEC-Q100 qualified for Grade 1 (−40°C to +125°C), with full characterization across temperature, voltage, and lifetime stress tests. This makes it suitable for engine control units, battery monitors, and traction inverter subsystems in passenger and commercial EVs.
How does the EMI rejection of ADA4522-2ARMZ-RL compare to standard op amps?
The ADA4522-2ARMZ-RL achieves ≥72 dB EMI rejection from 400 MHz to 2.4 GHz due to integrated on-chip RC filters - far exceeding typical op amps (<30 dB). This prevents RF-induced offset shifts and demodulation artifacts in automotive radar proximity zones and industrial variable-frequency drives.
What is the thermal resistance (θJA) of the ADA4522-2ARMZ-RL MSOP package?
The ADA4522-2ARMZ-RL in the 8-lead MSOP (RM) package has a junction-to-ambient thermal resistance (θJA) of 194°C/W under JEDEC-standard 4-layer board conditions. Its exposed pad improves heat dissipation, and θJC is 38°C/W for board-level thermal modeling.
ADA4522-2ARMZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.7V/µs
- Gain Bandwidth Product:
- 2.7 MHz
- -3db Bandwidth:
- 6.5 MHz
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 1.5 µV
- Current - Supply:
- 830µA (x2 Channels)
- 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-MSOP
ADA4522-2ARMZ-RL FAQ
1.How can I place an order for ADA4522-2ARMZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4522-2ARMZ-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 ADA4522-2ARMZ-RL reliable?
The price and inventory of ADA4522-2ARMZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4522-2ARMZ-RL is usually 5 days.
3.What payment methods are accepted for ADA4522-2ARMZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4522-2ARMZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4522-2ARMZ-RL?
ADA4522-2ARMZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4522-2ARMZ-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 ADA4522-2ARMZ-RL?
For technical support, including ADA4522-2ARMZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4522-2ARMZ-RL requirements.
6.How does Aetrix verify that ADA4522-2ARMZ-RL is sourced from the original manufacturer or authorized distributors?
All ADA4522-2ARMZ-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 ADA4522-2ARMZ-RL meets industry standards.
7.What is the process for return or replacement of ADA4522-2ARMZ-RL?
All ADA4522-2ARMZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADA4522-2ARMZ-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 ADA4522-2ARMZ-RL part is unused and in its original packaging.
Return procedure for ADA4522-2ARMZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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