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Analog Devices Inc. ADA4522-4ARUZ
- Part No.:
- ADA4522-4ARUZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADA4522-4ARUZ.pdf
- Description:
- IC OPAMP ZER-DRIFT 4CIRC 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,039
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Product details
Overview
ADA4522-4ARUZ from Analog Devices is a quad-channel, zero-drift, rail-to-rail output operational amplifier optimized for precision signal conditioning in high-accuracy systems. It delivers 5 µV max offset voltage, 22 nV/°C max drift, and 5.8 nV/√Hz typical voltage noise density across 4.5 V to 55 V supply operation, enabling stable front-end amplification in battery management and automotive sensor interfaces.
For engineers reviewing the ADA4522-4ARUZ datasheet, ADA4522-4ARUZ pinout, ADA4522-4ARUZ application, or ADA4522-4ARUZ equivalent, this page provides verified specifications, package mapping to 14-lead TSSOP (RU-14), channel-specific terminal roles, EMI-hardened performance data, and validated alternatives for high-voltage, low-drift analog signal chains.
Technical Context
The ADA4522-4ARUZ implements auto-zeroing architecture with chopper-stabilized input stage and integrated EMI filters on both inputs, achieving <0.1 µV/°C effective drift and >72 dB EMI rejection up to 2.4 GHz. Its rail-to-rail output swing (within 200 mV of rails at 55 V) and ground-sensing inputs support single-supply operation from 4.5 V to 55 V or dual supplies up to ±27.5 V.
Specified over −40°C to +125°C, the device maintains 130 dB min CMRR and 145 dB min open-loop gain across full temperature and voltage range. Unity-gain stability, 3 MHz unity-gain crossover, and 6.5 MHz −3 dB bandwidth enable precision DC-coupled amplification without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 5 µV maximum - enables sub-10 ppm accuracy in 16-bit+ data acquisition without calibration. |
| Offset Drift | 22 nV/°C maximum - ensures <1 µV total drift over −40°C to +125°C, critical for unattended industrial sensors. |
| Voltage Noise Density | 5.8 nV/√Hz typical at 1 kHz - supports low-noise amplification of µV-level bridge transducer signals. |
| Supply Range | 4.5 V to 55 V single or ±2.25 V to ±27.5 V dual - accommodates wide-input OBCs, BMS stacks, and 48 V automotive systems. |
| EMI Rejection Ratio | 85 dB at 2.4 GHz - suppresses RF interference from wireless modules and switching power supplies in dense PCB layouts. |
| Output Swing | Rail-to-rail, within 250 mV of V− and 200 mV of V+ at 55 V - maximizes dynamic range in high-voltage single-supply configurations. |
| Channel Separation | 98 dB at 10 kHz - prevents crosstalk between independent sensor channels in multi-channel PLC I/O modules. |
Pinout & Package
ADA4522-4ARUZ is packaged in a 14-lead TSSOP (RU-14) with exposed pad for thermal enhancement. Pin 11 is V−, pins 4 and 11 are dedicated supply terminals, and all four amplifier sections share no internal connection between NIC pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT A, OUT B, OUT C, OUT D | Amplifier outputs - each drives ≥14 mA, rail-to-rail swing, low 4 Ω closed-loop impedance at 1 MHz. |
| 2, 6, 9, 13 | −IN A, −IN B, −IN C, −IN D | Inverting inputs - 50 pA typical bias current, 1000 GΩ common-mode input resistance at 55 V. |
| 3, 5, 10, 12 | +IN A, +IN B, +IN C, +IN D | Noninverting inputs - EMI-filtered, ground-sensing, supports 0 V to (V+ − 1.5 V) common-mode range. |
| 4 | V+ | Positive supply - accepts 4.5 V to 55 V; must be applied before or simultaneously with V− per sequencing requirement. |
| 11 | V− | Negative supply - referenced to system ground in single-supply mode; absolute max rating is (V−) − 300 mV on inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Auto-zeroing + chopper stabilization reduces long-term drift and 1/f noise, maintaining <5 µV offset over time and temperature. |
| Integrated EMI filtering | On-chip RC filters on +IN/−IN pins deliver >72 dB rejection at 400–2400 MHz, eliminating need for external ferrites in noisy environments. |
| Rail-to-rail output | Swings within 200 mV of V+ and 250 mV of V− at full 55 V supply, preserving >98% of available dynamic range in high-voltage designs. |
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C) qualification confirms reliability for automotive under-hood sensors and traction inverter monitoring. |
| High PSRR & CMRR | 150 dB PSRR and 130 dB CMRR minimum ensure immunity to supply ripple and common-mode noise in precision shunt sensing. |
Applications
| Load Cell Signal Conditioning | High-Voltage Shunt Sensing |
|---|---|
|
Use Scenario: Amplifying mV-level differential output from full-bridge load cells in industrial weighing systems operating at 48 V bus voltage. IC Role / Device Role / Timing Role: Quad-channel instrumentation front-end amplifier with matched gain stages and ultra-low drift to preserve bridge linearity. Use Value: 5 µV offset and 22 nV/°C drift enable ≤0.005% reading error over temperature, eliminating recalibration cycles in field-deployed equipment. |
Use Scenario: Bidirectional current measurement in 400 V battery management systems using high-side shunt resistors. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail output and 55 V supply tolerance, configured for high-common-mode rejection. Use Value: 130 dB CMRR and 150 dB PSRR reject common-mode transients and supply noise, ensuring accurate current readback during fast charge/discharge transitions. |
| Automotive RTD Temperature Monitoring | Programmable Logic Controller Input Module |
|
Use Scenario: Linearizing and amplifying Pt100/Pt1000 RTD signals in engine coolant and cabin HVAC control units. IC Role / Device Role / Timing Role: Low-noise, low-drift buffer and excitation current source driver in 3-wire RTD configurations. Use Value: 5.8 nV/√Hz noise density and 117 nV p-p (0.1–10 Hz) enable resolution better than 0.01°C over full automotive temperature range. |
Use Scenario: Isolated analog input conditioning for 4–20 mA and 0–10 V field signals in industrial PLC backplanes. IC Role / Device Role / Timing Role: Quad op-amp providing gain, filtering, and level-shifting for multiple sensor inputs on single board. Use Value: Channel separation >98 dB prevents inter-channel crosstalk in multi-signal acquisition, while 830 µA per amplifier minimizes thermal loading in dense I/O modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADA4522-4ARZ | Same die, 14-lead SOIC package (R-14); higher θJA (115°C/W vs. 112°C/W), no exposed thermal pad. | Better suited for legacy through-hole or mixed-technology boards where SOIC footprint is preferred over TSSOP. | Select ADA4522-4ARZ only when board layout constraints require SOIC; RU-14 offers superior thermal performance in high-density designs. |
| AD8629ARZ-REEL7 | Dual-channel, lower supply max (16 V), 1 µV offset, 0.01 µV/°C drift - tighter DC specs but limited voltage range and channel count. | Applicable only in dual-channel, low-voltage (<16 V) precision applications where quad functionality is not required. | Choose AD8629ARZ-REEL7 for cost-sensitive dual-channel designs below 16 V; ADA4522-4ARUZ remains optimal for 4-channel, 55 V, AEC-Q100 systems. |
Compared with ADA4522-4ARZ and AD8629ARZ-REEL7, ADA4522-4ARUZ uniquely combines quad-channel integration, 55 V operation, AEC-Q100 qualification, and EMI hardening - making it the only option for space-constrained, high-voltage automotive and industrial signal chains requiring four matched amplifiers.
Availability
ADA4522-4ARUZ is available at Aetrix Electronics and suitable for battery management systems, automotive sensor interfaces, and programmable logic controller input modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for ADA4522-4ARUZ 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, high-voltage, EMI-immune signal conditioning in automotive, industrial, and energy infrastructure applications - emphasizing long-term DC accuracy and robustness in harsh electrical environments.
FAQ
What is the maximum supply voltage rating for ADA4522-4ARUZ?
The ADA4522-4ARUZ 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. Operation beyond 55 V risks exceeding specified performance limits and thermal dissipation capability in the 14-lead TSSOP package.
Does ADA4522-4ARUZ support true rail-to-rail input operation?
No, ADA4522-4ARUZ features ground-sensing inputs - its input voltage range extends from V− to (V+ − 1.5 V) - but does not include the positive rail. However, it does provide rail-to-rail output swing, reaching within 200 mV of V+ and 250 mV of V− at 55 V supply, enabling full utilization of available headroom in single-supply designs.
Is ADA4522-4ARUZ pin-compatible with other devices in the ADA4522 family?
ADA4522-4ARUZ uses a 14-lead TSSOP package with unique pinout for quad configuration; it is not pin-compatible with ADA4522-1 (8-lead) or ADA4522-2 (8-lead). Within the quad variants, ADA4522-4ARUZ (TSSOP) and ADA4522-4ARZ (SOIC) share identical pin functions but differ in mechanical footprint and thermal characteristics.
How does the EMI filtering in ADA4522-4ARUZ improve system-level robustness?
The integrated EMI filters on both +IN and −IN pins of ADA4522-4ARUZ provide >72 dB rejection from 400 MHz to 2.4 GHz, directly attenuating RF interference before it reaches the input stage. This eliminates the need for external RC filters or ferrite beads in applications near GSM, Wi-Fi, or switching converters - reducing bill-of-materials and layout complexity while improving immunity validation pass rates.
What is the guaranteed offset voltage drift specification for ADA4522-4ARUZ over temperature?
The ADA4522-4ARUZ guarantees a maximum offset voltage drift of 25 nV/°C over the full −40°C to +125°C operating range, as specified in Table 3 of the Rev I datasheet. At 25°C, typical drift is 5.3 nV/°C, and the distribution shows mean drift of −4.54 nV/°C at ±27.5 V supply, confirming consistent low-drift behavior across voltage and temperature conditions.
ADA4522-4ARUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 4
- 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 (x4 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:
- 14-TSSOP
ADA4522-4ARUZ FAQ
1.How can I place an order for ADA4522-4ARUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4522-4ARUZ 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 ADA4522-4ARUZ reliable?
The price and inventory of ADA4522-4ARUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4522-4ARUZ is usually 5 days.
3.What payment methods are accepted for ADA4522-4ARUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4522-4ARUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4522-4ARUZ?
ADA4522-4ARUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4522-4ARUZ 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 ADA4522-4ARUZ?
For technical support, including ADA4522-4ARUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4522-4ARUZ requirements.
6.How does Aetrix verify that ADA4522-4ARUZ is sourced from the original manufacturer or authorized distributors?
All ADA4522-4ARUZ 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 ADA4522-4ARUZ meets industry standards.
7.What is the process for return or replacement of ADA4522-4ARUZ?
All ADA4522-4ARUZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4522-4ARUZ, 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 ADA4522-4ARUZ part is unused and in its original packaging.
Return procedure for ADA4522-4ARUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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