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Analog Devices Inc. AD8692ARMZ-R7
- Part No.:
- AD8692ARMZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8692ARMZ-R7.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,207
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Product details
Overview
AD8692ARMZ-R7 from Analog Devices is a dual, rail-to-rail output, CMOS operational amplifier optimized for low-noise, low-distortion, single-supply operation from 2.7 V to 6 V. It delivers 10 MHz gain bandwidth, 5 V/µs slew rate, 8 nV/√Hz voltage noise density at 1 kHz, 400 µV typical offset voltage, and 6 µV/°C max offset drift - enabling precision signal conditioning in photodiode amplifiers and battery-powered medical instruments.
For engineers reviewing the AD8692ARMZ-R7 datasheet, AD8692ARMZ-R7 pinout, AD8692ARMZ-R7 application, or AD8692ARMZ-R7 equivalent, this page provides verified electrical specifications, MSOP-8 package details, automotive-grade qualification status, real-world use cases in sensor interfaces and portable audio, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The AD8692ARMZ-R7 employs a CMOS input stage delivering 1 pA maximum input bias current and 5 pF common-mode input capacitance, supporting high-impedance sensor interfacing without significant loading. Its rail-to-rail output swing (within 25 mV of rails at 1 mA load) and unity-gain stability enable direct driving of ADC inputs and active filter stages.
Specified across −40°C to +125°C, it maintains 68 dB min CMRR and 80 dB min PSRR over full temperature and supply range, with 0.0006% THD+N at 1 kHz - confirming suitability for precision analog front-ends where distortion and power supply coupling must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 10 MHz - supports stable closed-loop operation up to 10× gain at 1 MHz or unity gain at 10 MHz. |
| Slew Rate | 5 V/µs - enables accurate reproduction of 1 VPP signals up to ~800 kHz without slew-induced distortion. |
| Voltage Noise Density | 8 nV/√Hz at 1 kHz - critical for low-level signal amplification in photodiode and strain gauge circuits. |
| Input Bias Current | 1 pA max - preserves signal integrity in >1 GΩ source impedance applications like pH sensors. |
| Offset Voltage Drift | 6 µV/°C max - ensures <±0.6 mV total offset shift over −40°C to +125°C operating range. |
| Supply Range | 2.7 V to 6 V - compatible with single-cell Li-ion, 3.3 V logic, and 5 V industrial rails without level shifting. |
| Output Swing | Within 25 mV of rails at 1 mA - allows full dynamic range utilization into 10 kΩ loads with 3.3 V supplies. |
Pinout & Package
AD8692ARMZ-R7 is housed in an 8-lead MSOP (RM-8) package, 3.0 mm × 3.0 mm × 0.85 mm, with exposed thermal pad for enhanced thermal performance (θJA = 210°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Amplifier A output | Drives external load or next-stage input; rail-to-rail capable with 12 Ω closed-loop output impedance at 1 MHz. |
| 2 - V– | Negative supply | Ground reference for single-supply operation; accepts 0 V minimum; supports true single-supply functionality. |
| 3 - +IN A | Inverting input of Amp A | High-impedance CMOS node (1 pA max IB); requires matched trace impedance for optimal CMRR. |
| 4 - V+ | Positive supply | Accepts 2.7 V to 6 V; PSRR ≥80 dB ensures immunity to supply ripple in noisy environments. |
| 5 - –IN A | Non-inverting input of Amp A | Differential pair input; 2.5 pF differential capacitance affects high-frequency stability in transimpedance configs. |
| 6 - –IN B | Non-inverting input of Amp B | Independent channel; channel separation >130 dB at 1 kHz minimizes crosstalk in dual-path signal chains. |
| 7 - OUT B | Amplifier B output | Functionally identical to Pin 1; enables dual-channel filtering or differential drive without external components. |
| 8 - +IN B | Inverting input of Amp B | Matches Pin 3 characteristics; allows symmetrical PCB layout for matched gain/phase response across both channels. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 25 mV of V+ and V− at 1 mA load - maximizes usable dynamic range in 3.3 V systems. |
| Low input bias current | 1 pA max - eliminates significant error in high-Z sensor interfaces (e.g., piezoelectric accelerometers). |
| Automotive qualification | AEC-Q100 qualified (AD8692W variant); AD8692ARMZ-R7 is industrial grade but shares same die and process. |
| Low THD+N | 0.0006% at 1 kHz - meets fidelity requirements for portable audio line drivers and medical ECG front-ends. |
| Wide temperature range | Specified from −40°C to +125°C - supports under-hood automotive, industrial control, and outdoor instrumentation. |
Applications
| Photodiode Amplification | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Transimpedance amplification of low-current photodiode outputs in pulse oximeters and smoke detectors. IC Role / Device Role / Timing Role: Precision current-to-voltage conversion with minimal input bias current error and low noise floor. Use Value: 1 pA max input bias current prevents signal loss; 8 nV/√Hz noise density preserves SNR for sub-nA photocurrents. |
Use Scenario: Signal conditioning in handheld multimeters and portable gas analyzers powered by coin cells or Li-ion batteries. IC Role / Device Role / Timing Role: Dual-channel amplification of sensor outputs and reference buffers with ultra-low quiescent current. Use Value: 0.95 mA per amplifier at 5 V enables >100-hour runtime on 100 mAh batteries; rail-to-rail output maximizes ADC resolution. |
| Medical Instruments | Portable Audio Devices |
Use Scenario: Front-end amplification in portable ECG and EEG monitors requiring low distortion and DC accuracy. IC Role / Device Role / Timing Role: High-CMRR instrumentation amplifier stage rejecting common-mode interference from body-coupled noise. Use Value: 68 dB min CMRR and 0.0006% THD+N ensure diagnostic-grade waveform fidelity; −40°C to +125°C rating supports sterilization cycles. |
Use Scenario: Line driver and headphone amplifier in Bluetooth earbuds and voice-controlled speakers. IC Role / Device Role / Timing Role: Low-noise, low-distortion buffer between DAC output and audio jack/headphone load. Use Value: 10 MHz bandwidth supports full audio spectrum; rail-to-rail output delivers >3 VPP swing into 16 Ω loads from 3.3 V supply. |
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 |
|---|---|---|---|
| ADA4661-2ARMZ | Lower input bias current (0.1 pA), higher GBP (16 MHz), but higher supply current (1.2 mA/amplifier). | Better for ultra-high-impedance pH sensors; less suitable for battery-constrained designs. | Select when input bias current dominates error budget and power is secondary. |
| MCP6022-E/SN | Higher offset voltage (2.5 mV typ), lower noise (11 nV/√Hz), wider supply range (2.7 V to 5.5 V), lower cost. | Acceptable for non-precision industrial sensing; not recommended for medical-grade signal chains. | Select for cost-sensitive, non-critical applications where 10 µV/°C drift and 0.003% THD+N are acceptable. |
Compared with ADA4661-2ARMZ and MCP6022-E/SN, AD8692ARMZ-R7 offers the best balance of low noise (8 nV/√Hz), low drift (6 µV/°C), and low power (0.95 mA) in a qualified industrial MSOP package - making it optimal for portable medical and sensor interface designs demanding both precision and efficiency.
Availability
AD8692ARMZ-R7 is available at Aetrix Electronics and suitable for photodiode amplification, battery-powered instrumentation, and portable audio devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8692ARMZ-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD869x family was designed specifically for precision, low-power, single-supply signal conditioning in space- and energy-constrained applications - emphasizing rail-to-rail output, low noise, and wide temperature operation.
FAQ
What is the operating temperature range for AD8692ARMZ-R7?
The AD8692ARMZ-R7 is specified for continuous operation from −40°C to +125°C. This extended industrial temperature range is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the Rev. F datasheet, and applies to all standard-grade AD8692 variants including AD8692ARMZ-R7.
Does AD8692ARMZ-R7 support rail-to-rail input?
No, AD8692ARMZ-R7 features rail-to-rail *output* only. Its input common-mode voltage range extends from −0.3 V to VDD − 0.3 V (e.g., −0.3 V to +2.4 V at 2.7 V supply), as stated in Table 1 and Table 2 of the datasheet. It does not accept inputs at the positive rail.
Is AD8692ARMZ-R7 pin-compatible with other dual op-amps in MSOP-8?
AD8692ARMZ-R7 follows the industry-standard dual op-amp pinout (OUT A, V–, +IN A, V+, –IN A, –IN B, OUT B, +IN B) shown in Figure 3 of the datasheet. It is pin-compatible with AD8602, ADA4077-2, and OP2177 in MSOP-8 packages, but always verify supply voltage, bandwidth, and output drive capability before substitution.
What is the typical supply current per amplifier for AD8692ARMZ-R7?
The typical supply current per amplifier for AD8692ARMZ-R7 is 0.95 mA at 5 V supply and 25°C, as listed in Table 2 under "Supply Current/Amplifier" (ISY). At 2.7 V, it drops to 0.85 mA typical. Total device current is therefore ~1.9 mA typical at 5 V.
Can AD8692ARMZ-R7 drive capacitive loads directly?
AD8692ARMZ-R7 is unity-gain stable but exhibits increasing overshoot with capacitive loads >100 pF, as shown in Figure 18. For loads >200 pF, external isolation resistance (e.g., 10–50 Ω in series with output) is recommended to maintain stability, especially in transimpedance configurations.
AD8692ARMZ-R7 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:
- 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-MSOP
AD8692ARMZ-R7 FAQ
1.How can I place an order for AD8692ARMZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8692ARMZ-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 AD8692ARMZ-R7 reliable?
The price and inventory of AD8692ARMZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8692ARMZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8692ARMZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8692ARMZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8692ARMZ-R7?
AD8692ARMZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8692ARMZ-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 AD8692ARMZ-R7?
For technical support, including AD8692ARMZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8692ARMZ-R7 requirements.
6.How does Aetrix verify that AD8692ARMZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8692ARMZ-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 AD8692ARMZ-R7 meets industry standards.
7.What is the process for return or replacement of AD8692ARMZ-R7?
All AD8692ARMZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8692ARMZ-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 AD8692ARMZ-R7 part is unused and in its original packaging.
Return procedure for AD8692ARMZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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