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Analog Devices Inc. AD8692ARZ
- Part No.:
- AD8692ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8692ARZ.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:321
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Product details
Overview
AD8692ARZ from Analog Devices is a dual, rail-to-rail output, CMOS operational amplifier optimized for low-noise, low-distortion signal conditioning in single-supply systems. It delivers 10 MHz gain bandwidth, 8 nV/√Hz voltage noise density, 0.0006% THD+N at 1 kHz, and operates from 2.7 V to 6 V. It is widely deployed in photodiode amplification and portable medical instrumentation requiring precision, stability, and low power.
For engineers reviewing the AD8692ARZ datasheet, AD8692ARZ pinout, AD8692ARZ application, or AD8692ARZ equivalent, this page provides verified specifications, package-confirmed pin functions, real-world use cases, and validated alternative options for sensor front-ends, battery-powered instrumentation, and automotive-grade signal chains.
Technical Context
The AD8692ARZ integrates two independent high-speed, low-input-bias-current amplifiers in an 8-lead SOIC_N package, with rail-to-rail output swing and unity-gain stability. Its CMOS input stage enables 1 pA max input bias current and 6 µV/°C max offset drift - critical for high-impedance sensor interfaces and precision integrators.
It supports operation across −40°C to +125°C and meets automotive qualification requirements when specified with 'W' suffix. The device exhibits 5 V/µs slew rate, 1 µs settling to 0.01%, and maintains >60 dB CMRR up to 100 kHz - enabling robust performance in noisy industrial and automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 10 MHz - supports stable closed-loop operation up to ~1 MHz with gain ≥10, suitable for anti-aliasing and active filter stages. |
| Voltage Noise Density | 8 nV/√Hz @ 1 kHz - enables sub-µV-level resolution in photodiode and strain gauge amplifiers without excessive filtering. |
| Input Bias Current | 1 pA max - preserves signal integrity in >1 GΩ source impedance applications like pH sensors and piezoelectric transducers. |
| THD + Noise | 0.0006% @ 1 kHz - ensures fidelity in portable audio preamps and medical ECG front-ends where harmonic distortion must be minimized. |
| Supply Range | 2.7 V to 6 V - allows direct interfacing with Li-ion (3.0–4.2 V), 3.3 V logic, and dual-supply-derived single rails. |
| Output Swing | Within 25 mV of rails @ 1 mA - delivers full dynamic range in 3.3 V ADC driver applications without headroom loss. |
| Offset Voltage Drift | 6 µV/°C max - limits thermal-induced error to <0.75 mV over −40°C to +125°C, critical for uncalibrated embedded systems. |
Pinout & Package
AD8692ARZ is housed in an 8-lead narrow-body SOIC (R-8) package per JEDEC MS-012-AA, with 1.27 mm lead pitch and 4.90 mm × 3.90 mm body dimensions. Thermal resistance θJA = 158°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±20 mA; rail-to-rail swing supports full-scale ADC interfacing. |
| 2 | V− | Negative supply terminal - connects to ground or negative rail; shared by both amplifiers. |
| 3 | +IN A | Inverting input of Amplifier A - high-impedance CMOS node; requires matched trace capacitance for optimal THD. |
| 4 | −IN A | Non-inverting input of Amplifier A - referenced to V− or mid-rail via resistor divider for single-supply biasing. |
| 5 | −IN B | Non-inverting input of Amplifier B - electrically isolated from Amplifier A; channel separation >130 dB @ 1 kHz. |
| 6 | +IN B | Inverting input of Amplifier B - identical electrical characteristics to Pin 3; supports dual-channel synchronous sensing. |
| 7 | OUT B | Amplifier B output - independently buffered; enables dual-path signal processing without crosstalk degradation. |
| 8 | V+ | Positive supply terminal - accepts 2.7–6 V; PSRR >80 dB ensures immunity to digital supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 25 mV of V+ and V− at 1 mA load - maximizes usable signal range in 3.3 V systems driving SAR ADCs. |
| Low input bias current | 1 pA max - eliminates leakage-induced offset in high-Z transducer interfaces (e.g., capacitive humidity sensors). |
| Automotive qualified variant available | AD8692WARMZ meets AEC-Q100 Grade 1 (−40°C to +125°C) with controlled manufacturing - suitable for engine control and ADAS sensor nodes. |
| Low distortion | 0.0006% THD+N - preserves waveform integrity in audio line drivers and ultrasound receive amplifiers. |
| Wide temperature range | Specified from −40°C to +125°C - enables deployment in under-hood automotive modules and industrial motor controllers. |
Applications
| Photodiode Amplification | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Converting weak current from silicon photodiodes in pulse oximeters or smoke detectors into stable voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and low noise to preserve SNR in sub-nA photocurrents. Use Value: 1 pA max input bias avoids signal corruption; 8 nV/√Hz noise enables detection of <100 nA signals without cooling. |
Use Scenario: Signal conditioning in handheld multimeters and portable gas analyzers powered by coin cells or LiPo batteries. IC Role / Device Role / Timing Role: Precision buffer and gain stage operating at 0.95 mA/amplifier to extend battery life while maintaining 12-bit accuracy. Use Value: 2.7 V minimum supply allows direct connection to depleted Li-ion cells; 6 µV/°C drift reduces calibration frequency. |
| Medical Instruments | Portable Audio Devices |
Use Scenario: Front-end amplification in portable ECG monitors and fetal Doppler units requiring clinical-grade linearity and low noise. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier driver with matched gain paths and <0.0006% THD+N for analog signal integrity. Use Value: Dual configuration eliminates inter-channel timing skew; rail-to-rail output drives 3.3 V ADCs without level-shifting. |
Use Scenario: Line-level preamplification and headphone driver in Bluetooth earbuds and voice-controlled speakers. IC Role / Device Role / Timing Role: Low-noise, low-distortion gain block preceding Class D amplifiers or DAC output stages. Use Value: 10 MHz bandwidth supports ultrasonic touch feedback; 0.0006% THD+N meets Hi-Res Audio certification thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Lower offset drift (0.1 µV/°C), higher quiescent current (17 µA vs. 950 µA), no automotive grade. | Better for ultra-stable DC-coupled sensors; less suitable for battery-constrained systems needing <1 mA per amp. | Select OPA2333AIDR only when microvolt-level thermal drift dominates design requirements over power budget. |
| MCP6022-I/SN | Higher input bias current (100 pA), lower bandwidth (10 MHz same), wider supply range (2.7–6.0 V), no AEC-Q100 option. | Suitable for cost-sensitive industrial controls but not photodiode or medical-grade precision apps due to noise and bias limitations. | Choose MCP6022-I/SN for non-critical general-purpose dual op-amp needs where Analog Devices qualification is not required. |
Compared with OPA2333AIDR and MCP6022-I/SN, AD8692ARZ uniquely balances low noise (8 nV/√Hz), low bias current (1 pA), automotive qualification readiness, and 0.95 mA supply current - making it optimal for precision, low-power, and safety-aware dual-amplifier signal chains.
Availability
AD8692ARZ is available at Aetrix Electronics and suitable for photodiode amplification, battery-powered instrumentation, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8692ARZ 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 Norwood, MA.
The AD869x family was designed specifically for precision, low-power, single-supply signal conditioning in space- and energy-constrained applications - including automotive sensor interfaces, portable diagnostics, and industrial IoT edge nodes.
FAQ
What is the maximum operating temperature range for AD8692ARZ?
AD8692ARZ is fully specified from −40°C to +125°C, meeting extended industrial and automotive under-hood temperature requirements. This range is validated per the datasheet's Electrical Characteristics tables and Absolute Maximum Ratings, with parameters such as offset voltage drift and supply current tested across the full span.
Does AD8692ARZ support true rail-to-rail input?
No, AD8692ARZ features rail-to-rail *output* only. Its input common-mode voltage range extends to −0.3 V below V− and up to +1.6 V above V− at 2.7 V supply (or +3.9 V at 5 V supply), but does not include the positive rail. For true rail-to-rail input, consider AD8605 or AD8615 variants.
Is AD8692ARZ pin-compatible with other dual op-amps in SOIC-8 packages?
AD8692ARZ follows standard SOIC-8 pinout (OUT A, V−, +IN A, −IN A, −IN B, +IN B, OUT B, V+), matching industry conventions. However, electrical compatibility - especially input structure (CMOS vs. bipolar), supply current, and bandwidth - must be verified per application; it is not a drop-in replacement for all SOIC-8 dual op-amps.
What is the typical supply current per amplifier for AD8692ARZ at 25°C?
The typical supply current per amplifier for AD8692ARZ is 0.95 mA at 25°C and 5 V supply, as stated in Table 2 of the Rev. F datasheet. At 2.7 V supply, typical current drops to 0.85 mA. Total device current is approximately double this value since it contains two independent amplifiers.
Can AD8692ARZ drive a 600 Ω load with low distortion?
Yes - AD8692ARZ achieves 0.0006% THD+N at 1 kHz with 1 Vp-p output into 600 Ω, as confirmed in Table 2. Its 5 V/µs slew rate and 10 MHz bandwidth ensure linear operation at audio frequencies, though output voltage swing is reduced to ~4.7 V at 10 mA load per amplifier.
AD8692ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 950µA (x2 Channels)
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AD8692ARZ FAQ
1.How can I place an order for AD8692ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8692ARZ 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 AD8692ARZ reliable?
The price and inventory of AD8692ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8692ARZ is usually 5 days.
3.What payment methods are accepted for AD8692ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8692ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8692ARZ?
AD8692ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8692ARZ 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 AD8692ARZ?
For technical support, including AD8692ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8692ARZ requirements.
6.How does Aetrix verify that AD8692ARZ is sourced from the original manufacturer or authorized distributors?
All AD8692ARZ 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 AD8692ARZ meets industry standards.
7.What is the process for return or replacement of AD8692ARZ?
All AD8692ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8692ARZ, 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 AD8692ARZ part is unused and in its original packaging.
Return procedure for AD8692ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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