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Analog Devices Inc. AD8630ARZ-REEL
- Part No.:
- AD8630ARZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8630ARZ-REEL.pdf
- Description:
- IC OPAMP ZERO-DRIFT 4CIRC 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,078
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Product details
Overview
AD8630ARZ-REEL from Analog Devices is a quad, zero-drift, rail-to-rail input/output operational amplifier optimized for precision dc-coupled sensor signal conditioning. 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 thermocouple, strain gage, and current shunt amplification in automotive and industrial systems.
For engineers reviewing the AD8630ARZ-REEL datasheet, AD8630ARZ-REEL pinout, AD8630ARZ-REEL application, or AD8630ARZ-REEL equivalent, this page provides verified package mapping (14-lead SOIC_N), confirmed quad-channel pinout, real-world overload recovery (50 µs), noise performance (0.5 µV p-p, 0.1–10 Hz), and validated alternatives for precision analog front-ends requiring <10 µV total error over −40°C to +125°C.
Technical Context
The AD8630ARZ-REEL implements a patented dual-stage auto-zero + chopping topology operating at 15 kHz, eliminating 1/f noise while suppressing switching artifacts - unlike single-mechanism chopper or auto-zero amplifiers. Its rail-to-rail input stage accepts common-mode voltages from GND to VS, and its output swings within 1 mV of rails under light load, supporting unipolar DAC buffering and low-voltage sensor interfaces.
This quad op amp operates from 2.7 V to 5.5 V single supply (±1.35 V to ±2.5 V dual), with guaranteed performance across −40°C to +125°C. Input bias current remains ≤300 pA (max) and PSRR stays ≥115 dB over temperature, making it suitable for high-impedance photodiode and thermopile preamplifiers where leakage and supply ripple directly impact offset stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 1 µV typical; ensures ≤38 µV output error at ×38 gain - sufficient for 16-bit system accuracy without trimming. |
| Offset Drift | 0.002 µV/°C max; contributes <0.25 µV error over full −40°C to +125°C range - negligible vs. sensor drift. |
| CMRR / PSRR | 130 dB min; rejects >3 million-fold common-mode or supply noise - critical for bridge sensor excitation. |
| Gain Bandwidth | 2.5 MHz at 5 V; supports stable closed-loop gain ≥100 up to 25 kHz - adequate for 10 kHz sensor bandwidths. |
| Output Swing | Within 1 mV of rails (RL = 100 kΩ); enables full-scale utilization of 0–5 V ADC inputs without level-shifting. |
| Supply Current | 1.0 mA per amplifier; allows four channels to operate on <4.5 mA - compatible with low-power battery systems. |
| Overload Recovery | 50 µs; settles 10× faster than legacy auto-zero amps - prevents data corruption during transient saturation in ADC drivers. |
Pinout & Package
AD8630ARZ-REEL is housed in a 14-lead narrow SOIC (SOIC_N, R-14) package, 8.65 mm × 3.90 mm, 1.75 mm height, with standard 1.27 mm pitch. Pin 1 marked by notch or bevel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (A) | High-impedance node for feedback network connection; accepts rail-to-rail common-mode voltage. |
| 2 | Non-Inverting Input (A) | High-Z input for sensor reference or signal source; bias current ≤300 pA minimizes IR drop errors. |
| 3 | Output (A) | Capable of sourcing/sinking ±30 mA; swings to within 1 mV of supply rails under light load. |
| 4 | V– (GND) | Power ground reference for all four amplifiers; must be low-impedance to maintain PSRR. |
| 5 | Non-Inverting Input (B) | Independent input for second channel; electrically isolated from Channel A per datasheet layout guidelines. |
| 6 | Inverting Input (B) | Feedback node for Channel B; matched input capacitance (1.5 pF diff, 8.0 pF cm) ensures phase margin stability. |
| 7 | Output (B) | Second buffered output; specified for same drive strength and swing as Channel A. |
| 8 | V+ | Positive supply rail (2.7–5.5 V); decoupling capacitor required within 1 cm for noise immunity. |
| 9 | Output (C) | Third independent output; no crosstalk specification given, but channel separation >80 dB @ 1 kHz per Figure 48. |
| 10 | Inverting Input (C) | Input for third amplifier; identical electrical specs to Pins 1 and 6 - supports matched multi-channel designs. |
| 11 | Non-Inverting Input (C) | Third high-Z input; usable for differential sensing or independent signal paths. |
| 12 | Non-Inverting Input (D) | Fourth input; shares same bias current and offset specs - enables 4-channel simultaneous acquisition. |
| 13 | Inverting Input (D) | Fourth feedback node; layout symmetry recommended to minimize thermal EMF mismatches. |
| 14 | Output (D) | Final output; fully characterized for same slew rate (1 V/µs), noise, and settling behavior as other channels. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift architecture | Auto-zero + chopping ping-pong topology eliminates 1/f noise and holds offset drift ≤0.002 µV/°C - removes need for periodic calibration in sealed sensors. |
| Rail-to-rail I/O | Input range = GND to VS; output swing = within 1 mV of rails (RL = 100 kΩ) - maximizes dynamic range in 3.3 V or 5 V systems. |
| No external capacitor required | Internal compensation enables unity-gain stable operation without external components - reduces BOM count and PCB area in space-constrained modules. |
| Automotive qualified | Qualified per AEC-Q100 Grade 1 (−40°C to +125°C); available in W-grade variants - supports engine control, cabin sensing, and ADAS subsystems. |
| Low EMI sensitivity | 15 kHz internal clock frequency avoids AM/FM radio bands; measured PSRR ≥115 dB up to 100 kHz - resists RF rectification in noisy vehicle environments. |
Applications
| Thermocouple Amplifier | Strain Gage Bridge Interface |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltage from K-type thermocouples in automotive exhaust gas temperature monitoring. IC Role / Device Role / Timing Role: Primary instrumentation amplifier front-end, configured as non-inverting gain-of-1000 with matched resistors. Use Value: 1 µV offset and 0.002 µV/°C drift contribute <0.25 µV error over full temp range - equivalent to <0.06°C measurement uncertainty at 1000°C. | Use Scenario: Reading differential voltage from 350 Ω Wheatstone bridge in brake pressure sensor under vibration and thermal cycling. IC Role / Device Role / Timing Role: First-stage difference amplifier with rail-to-rail input to accommodate bridge common-mode shift during supply droop. Use Value: 130 dB CMRR rejects bridge excitation ripple; 1.0 mA/quads enables 4-sensor readout on single 5 V rail with <4.5 mA total draw. |
| Precision Current Shunt Monitor | Photodiode Transimpedance Stage |
Use Scenario: Measuring 1 mA–10 A battery charge/discharge current via 10 mΩ shunt in EV battery management unit. IC Role / Device Role / Timing Role: Low-side current sense amplifier with 100 V/V gain; four channels monitor multiple cell groups simultaneously. Use Value: 300 pA max input bias adds <3 nV error across 10 mΩ shunt - negligible vs. 10 µV LSB of 16-bit ADC sampling 100 mV full-scale. | Use Scenario: Converting pA-level photocurrent from InGaAs photodiode in fiber-optic receiver under ambient light interference. IC Role / Device Role / Timing Role: Transimpedance amplifier with 1 MΩ feedback resistor; quad configuration supports multi-wavelength detection. Use Value: 0.5 µV p-p (0.1–10 Hz) noise enables resolution of <10 pA signals; rail-to-rail output drives ADC without clipping at 3.3 V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2057HMS8#PBF | Single-channel, 5 µV max offset, 0.015 µV/°C drift, 1.2 mA supply current, 1.5 MHz GBW | Lower channel density; requires separate devices for multi-channel designs; higher drift increases temp-induced error by 5× | Preferred when single-channel ultra-low-noise performance is prioritized over integration or power efficiency. |
| OPA2189IDR | Dual-channel, 0.005 µV/°C drift, 5.7 V/V open-loop gain, 1.3 mA per amp, 12 MHz GBW | Higher bandwidth but larger input bias (20 pA typ) and no automotive qualification; not rated for −40°C to +125°C extended range | Selected for high-speed precision applications where temperature range is limited to 0°C–70°C and multi-channel density is secondary. |
Compared with LTC2057HMS8#PBF and OPA2189IDR, AD8630ARZ-REEL uniquely combines quad-channel integration, automotive qualification, sub-µV offset, and 0.002 µV/°C drift in a single 14-lead SOIC - reducing board space, interconnect complexity, and calibration overhead in multi-sensor automotive ECUs.
Availability
AD8630ARZ-REEL is available at Aetrix Electronics and suitable for automotive sensor modules, industrial process controllers, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8630ARZ-REEL 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 AD8628/AD8629/AD8630 family was designed specifically for ultraprecise, low-drift, rail-to-rail signal conditioning in harsh environments - targeting automotive, industrial, and medical applications where dc accuracy and long-term stability outweigh raw speed requirements.
FAQ
What is the maximum operating temperature range for AD8630ARZ-REEL?
The AD8630ARZ-REEL is specified for continuous operation from −40°C to +125°C, meeting extended industrial and automotive grade requirements. This range is validated per the datasheet's Electrical Characteristics tables and Absolute Maximum Ratings, with all key parameters - including offset voltage, drift, CMRR, and supply current - guaranteed across the full span.
Does AD8630ARZ-REEL require an external capacitor for stability?
No, AD8630ARZ-REEL is internally compensated and unity-gain stable without external capacitors. The datasheet explicitly states "No external components required" in Features and confirms unity-gain stability in Functional Description. External capacitors may be added only for specific filtering or noise reduction - not for basic stability.
What is the overload recovery time of AD8630ARZ-REEL, and why does it matter?
The AD8630ARZ-REEL recovers from output saturation in 50 µs, as specified in Table 1 and confirmed in Figure 56–61. This fast recovery prevents data corruption in applications like switched-capacitor ADC drivers or sensor front-ends exposed to transients - where slower recovery (>1 ms in legacy auto-zero amps) would cause sustained output error after overload events.
Is AD8630ARZ-REEL pin-compatible with other parts in the AD8628/AD8629/AD8630 family?
No - AD8630ARZ-REEL uses a 14-lead SOIC_N (R-14) package, while AD8628 and AD8629 use 5-, 8-, or MSOP packages. Pin counts and layouts differ fundamentally: AD8630ARZ-REEL has 14 pins for four independent op amps; AD8628 (single) uses 5 or 8 pins; AD8629 (dual) uses 8 pins. No pin-to-pin compatibility exists between these variants.
What packaging and reel options are available for AD8630ARZ-REEL?
AD8630ARZ-REEL is supplied in tape-and-reel format with 2500 units per reel, in a 14-lead narrow SOIC (R-14) package. The "REEL" suffix denotes this standard reel quantity; alternate options include AD8630ARZ-REEL7 (1000/reel) and AD8630ARUZ-REEL (2500/reel in TSSOP). All versions are RoHS-compliant (Z suffix) and rated for −40°C to +125°C operation.
AD8630ARZ-REEL 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
AD8630ARZ-REEL FAQ
1.How can I place an order for AD8630ARZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8630ARZ-REEL 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 AD8630ARZ-REEL reliable?
The price and inventory of AD8630ARZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8630ARZ-REEL is usually 5 days.
3.What payment methods are accepted for AD8630ARZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8630ARZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8630ARZ-REEL?
AD8630ARZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8630ARZ-REEL 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 AD8630ARZ-REEL?
For technical support, including AD8630ARZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8630ARZ-REEL requirements.
6.How does Aetrix verify that AD8630ARZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD8630ARZ-REEL 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 AD8630ARZ-REEL meets industry standards.
7.What is the process for return or replacement of AD8630ARZ-REEL?
All AD8630ARZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD8630ARZ-REEL, 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 AD8630ARZ-REEL part is unused and in its original packaging.
Return procedure for AD8630ARZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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