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Analog Devices Inc. AD8630WARZ-R7
- Part No.:
- AD8630WARZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8630WARZ-R7.pdf
- Description:
- IC OPAMP ZERO-DRIFT 4CIRC 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,175
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Product details
Overview
AD8630WARZ-R7 from Analog Devices is a quad zero-drift, rail-to-rail input/output operational amplifier optimized for precision DC-coupled sensing in automotive-grade systems. It delivers 1 µV max offset voltage, 0.002 µV/°C drift, 130 dB CMRR, 2.5 MHz gain bandwidth, and 1.0 mA supply current per amplifier at 5 V - enabling high-accuracy strain gage, thermocouple, and current shunt amplification in harsh environments from −40°C to +125°C.
For engineers reviewing the AD8630WARZ-R7 datasheet, AD8630WARZ-R7 pinout, AD8630WARZ-R7 application, or AD8630WARZ-R7 equivalent, this page provides verified package mapping (14-lead SOIC_N), confirmed quad-channel topology, validated automotive qualification status, and real-world design meaning for key specs including overload recovery (50 µs), noise (0.5 µV p-p, 0.1–10 Hz), and rail-to-rail swing (±5 mV low, 4.99 V high at 5 V).
Technical Context
The AD8630WARZ-R7 implements a patented dual-stage auto-zeroing and chopping architecture operating at 15 kHz, eliminating 1/f noise while minimizing switching artifacts - unlike single-mode chopper or auto-zero amplifiers. Its ping-pong topology ensures stable DC precision without external capacitors and enables true 16-bit accuracy in systems with 5–10 kHz signal bandwidths.
This quad op amp operates from 2.7 V to 5.5 V single supply, supports rail-to-rail common-mode input (0 V to VS) and output swing (within 5 mV of rails), and features integrated input overvoltage protection with ESD diodes rated to ±5000 V HBM - all specified across the full −40°C to +125°C automotive temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 1 µV typical (10 µV max over −40°C to +125°C) - eliminates need for system-level trimming in 16-bit DAC output stages or µV-level sensor interfaces. |
| Input Offset Drift | 0.002 µV/°C typical - ensures <10 µV total drift over full automotive temperature range, critical for uncalibrated pressure/strain measurements. |
| CMRR / PSRR | 130 dB typical - rejects >99.999% of power supply ripple and common-mode interference in noisy automotive harnesses. |
| Gain Bandwidth | 2.5 MHz at 5 V - supports closed-loop gains up to 250 with >10 kHz small-signal bandwidth for fast settling in current-sense feedback loops. |
| Noise (0.1–10 Hz) | 0.5 µV p-p - enables dc-coupled thermopile or photodiode amplification without 1/f error accumulation over >200 ms integration windows. |
| Overload Recovery | 50 µs - recovers in under two internal clock cycles after saturation, essential for driving switched-capacitor ADC inputs without data corruption. |
| Supply Current | 1.0 mA per amplifier - allows four independent precision channels in <4.5 mA total, suitable for space-constrained automotive ECUs. |
Pinout & Package
AD8630WARZ-R7 is housed in a 14-lead narrow SOIC (SOIC_N) package (R-14), 8.65 mm × 3.90 mm footprint, 1.75 mm height, with standard 1.27 mm lead pitch. Pin 1 marked by notch or bevel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Rail-to-rail sourcing/sinking up to ±30 mA - drives low-impedance loads directly without external buffers. |
| 2 (−IN A) | Amplifier A inverting input | 100 pA max bias current - minimizes error in high-Z sensor interfaces like thermocouples or piezoresistive bridges. |
| 3 (+IN A) | Amplifier A non-inverting input | Common-mode range extends to both supply rails - enables direct connection to ground-referenced sensors without level-shifting. |
| 4 (V−) | Negative supply / ground | Single-supply operation: tied to GND; supports rail-to-rail input down to 0 V. |
| 5 (+IN B) | Amplifier B non-inverting input | Independent channel input - allows differential pair configuration with A channel or separate signal conditioning paths. |
| 6 (−IN B) | Amplifier B inverting input | Matches A channel specs - enables matched gain/offset performance across dual instrumentation amplifier topologies. |
| 7 (OUT B) | Amplifier B output | Identical drive capability to OUT A - supports dual-output configurations such as active filters or dual feedback paths. |
| 8 (OUT C) | Amplifier C output | Third independent output - used for reference buffering, bias generation, or auxiliary signal processing in multi-channel systems. |
| 9 (−IN C) | Amplifier C inverting input | Same ultra-low bias and offset as other inputs - maintains precision across all four channels without calibration skew. |
| 10 (+IN C) | Amplifier C non-inverting input | Full rail-to-rail common-mode support - enables direct interface with 0–5 V microcontroller ADC references or DAC outputs. |
| 11 (V+) | Positive supply | Operates from 2.7 V to 5.5 V - compatible with automotive 3.3 V and 5 V domains without LDO overhead. |
| 12 (+IN D) | Amplifier D non-inverting input | Fourth channel input - supports quad-configured applications like 4-wire RTD excitation and sensing or multi-axis position feedback. |
| 13 (−IN D) | Amplifier D inverting input | Matched to other channels - ensures consistent common-mode rejection and gain error across all four amplifiers. |
| 14 (OUT D) | Amplifier D output | Final rail-to-rail output - completes quad functionality for systems requiring simultaneous analog signal conditioning on four independent signals. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Patented auto-zero + chopping at 15 kHz eliminates 1/f noise and holds offset drift ≤0.02 µV/°C over life - no recalibration needed in automotive modules. |
| Rail-to-rail I/O | Input common-mode range = 0 V to VS; output swing within 5 mV of rails - maximizes dynamic range in 5 V systems without external level-shifting components. |
| Automotive qualification | AEC-Q100 Grade 1 qualified (−40°C to +125°C), with controlled manufacturing and reliability reporting - approved for safety-critical body control and powertrain subsystems. |
| No external capacitor required | Internal compensation enables stable unity-gain operation - reduces BOM count and PCB area vs. discrete-compensated alternatives. |
| Low ESD sensitivity | ±5000 V HBM rating on 14-lead SOIC - withstands handling and assembly stresses in automotive production lines without special ESD controls. |
Applications
| Automotive Pressure Sensing | Medical Thermocouple Amplification |
|---|---|
|
Use Scenario: Measuring manifold absolute pressure (MAP) in engine control units using silicon piezoresistive sensors with mV-level output. IC Role / Device Role / Timing Role: Quad amplifier configured as two differential pairs for bridge excitation and signal conditioning, plus two buffers for reference and diagnostics. Use Value: 1 µV offset and 0.002 µV/°C drift ensure <±0.1% FS error over full temperature range without software compensation - meeting ASAM MCD-2 MC calibration requirements. |
Use Scenario: Amplifying thermocouple outputs (e.g., Type K, 41 µV/°C) in patient temperature monitors with 0.1°C resolution. IC Role / Device Role / Timing Role: First-stage low-noise amplifier with cold-junction compensation buffer and filter driver in analog front-end. Use Value: 0.5 µV p-p (0.1–10 Hz) noise and rail-to-rail input enable direct connection to thermocouple without AC coupling - preserving DC accuracy for slow thermal transients. |
| Precision Current Shunt Monitoring | High-Resolution DAC Output Buffering |
|
Use Scenario: Bidirectional current sensing in 12 V battery management systems using 10 mΩ shunts for charge/discharge monitoring. IC Role / Device Role / Timing Role: Quad amplifier implementing low-side differential measurement, high-side differential measurement, reference buffer, and fault comparator. Use Value: 100 pA max input bias current prevents >10 nA error in 1 mA measurement - achieving ±0.1% full-scale accuracy at 100 A range with 10 mΩ shunt. |
Use Scenario: Buffering 16-bit unipolar DAC (e.g., AD5541) with 2.5 V reference in industrial PLC analog output modules. IC Role / Device Role / Timing Role: Output amplifier providing rail-to-rail swing, low offset correction, and fast settling for DAC code transitions. Use Value: 1 µV offset is <3% of DAC LSB (38 µV), eliminating need for external trim; 1 µs settling adds only 0.4 µs to total system settling time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8629WARZ-R7 | Dual-channel version in same 8-lead SOIC package; identical offset (1 µV), drift (0.002 µV/°C), and noise specs; lower supply current (0.9 mA/channel). | Lacks two amplifier channels - unsuitable for quad-configured systems but saves board space where only two precision channels are needed. | Select AD8629WARZ-R7 when dual-channel functionality suffices and PCB area is constrained; verify pin compatibility for drop-in replacement in existing dual-opamp footprints. |
| LTC2057HMS8#PBF | Single-channel auto-zero op amp; 0.5 µV max offset, 0.01 µV/°C drift, higher supply current (1.2 mA); requires external 100 nF capacitor for stability. | Not quad-channel; lacks automotive qualification; higher drift limits use in extended temperature automotive applications. | Choose LTC2057HMS8#PBF only for single-channel, non-automotive designs where lowest possible offset is prioritized over channel count and qualification. |
Compared with AD8630WARZ-R7, AD8629WARZ-R7 offers identical precision in half the channel count and smaller package, while LTC2057HMS8#PBF trades quad functionality and automotive grade for marginally lower offset in single-channel use - making AD8630WARZ-R7 the sole choice for space-tolerant, four-channel, AEC-Q100-compliant precision sensing.
Availability
AD8630WARZ-R7 is available at Aetrix Electronics and suitable for automotive pressure sensing, medical thermocouple amplification, and precision current shunt monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8630WARZ-R7 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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD8628/AD8629/AD8630 product line was designed specifically for ultraprecise, zero-drift amplification in safety-critical automotive and medical instrumentation - delivering sub-microvolt DC accuracy without external trimming or filtering.
FAQ
What is the operating temperature range for AD8630WARZ-R7?
The AD8630WARZ-R7 is qualified for automotive applications and operates across −40°C to +125°C. This extended industrial temperature range is fully specified for all key parameters including offset voltage (10 µV max), drift (0.02 µV/°C max), and CMRR (115 dB min), ensuring reliable performance in engine bay and under-hood environments where the AD8630WARZ-R7 is commonly deployed.
Does AD8630WARZ-R7 require external compensation capacitors?
No, the AD8630WARZ-R7 is internally compensated and stable at unity gain without external components. Its patented auto-zero/chopping architecture eliminates the need for external capacitors typically required by competing zero-drift amplifiers - simplifying layout, reducing BOM cost, and improving reliability in automotive applications where the AD8630WARZ-R7 is used.
Is AD8630WARZ-R7 pin-compatible with other members of the AD8628/AD8629/AD8630 family?
No - AD8630WARZ-R7 uses a 14-lead SOIC_N (R-14) package, while AD8628W/AD8629W variants use 5-lead TSOT/SOT-23 or 8-lead SOIC/MSOP packages. The pinout, channel count (quad vs. single/dual), and supply pin arrangement differ fundamentally; AD8630WARZ-R7 is not a drop-in replacement for AD8628WARZ-R7 or AD8629WARZ-R7.
What is the maximum supply voltage for AD8630WARZ-R7?
The absolute maximum supply voltage for AD8630WARZ-R7 is 6 V, but its recommended operating range is 2.7 V to 5.5 V. Operating at 5.0 V delivers optimal performance: 2.5 MHz gain bandwidth, 1.0 mA supply current per amplifier, and rail-to-rail output swing within 5 mV of the rails - all critical for precision analog signal chains where the AD8630WARZ-R7 is applied.
How does AD8630WARZ-R7 handle input overvoltage conditions?
AD8630WARZ-R7 includes ESD diodes between each input and supply rail, rated to ±5000 V HBM. If either input exceeds the supply rails by more than 0.3 V, these diodes conduct; to prevent damage, series resistors must limit current to <5 mA. This protection scheme is validated for automotive harness transients and is documented in the AD8630WARZ-R7 functional description section.
AD8630WARZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 2.5 MHz
- -3db Bandwidth:
- 2.5 MHz
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- -
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
AD8630WARZ-R7 FAQ
1.How can I place an order for AD8630WARZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8630WARZ-R7 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 AD8630WARZ-R7 reliable?
The price and inventory of AD8630WARZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8630WARZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8630WARZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8630WARZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8630WARZ-R7?
AD8630WARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8630WARZ-R7 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 AD8630WARZ-R7?
For technical support, including AD8630WARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8630WARZ-R7 requirements.
6.How does Aetrix verify that AD8630WARZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8630WARZ-R7 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 AD8630WARZ-R7 meets industry standards.
7.What is the process for return or replacement of AD8630WARZ-R7?
All AD8630WARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8630WARZ-R7, 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 AD8630WARZ-R7 part is unused and in its original packaging.
Return procedure for AD8630WARZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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