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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Analog Devices Inc. ADA4692-4ARUZ

Name: ADA4692-4ARUZ
Brand: Analog Devices Inc.
SKU: ADA4692-4ARUZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADA4692-4ARUZ

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: ADA4692-4ARUZ.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14TSSOP

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Product details

Overview

ADA4692-4ARUZ from Analog Devices is a quad rail-to-rail output operational amplifier optimized for low-power, low-noise precision signal conditioning in battery-powered and space-constrained systems. It delivers 3.6 MHz gain bandwidth, 16 nV/√Hz voltage noise density at 1 kHz, 180 μA per amplifier supply current, and 0.5 pA typical input bias current - enabling high-impedance sensor interfacing and photodiode amplification with minimal power overhead.

For engineers reviewing the ADA4692-4ARUZ datasheet, ADA4692-4ARUZ pinout, ADA4692-4ARUZ application, or ADA4692-4ARUZ equivalent, this page provides verified circuit role (precision quad op amp), package mapping (14-lead TSSOP), thermal performance (θJA = 112°C/W), rail-to-rail output swing, and confirmed alternative options for portable medical, audio, and industrial sensing designs.

Technical Context

The ADA4692-4ARUZ belongs to the ADA469x family of micropower, rail-to-rail output amplifiers designed for single-supply operation from 2.7 V to 5 V (or ±1.35 V to ±2.5 V). Unlike the shutdown-capable ADA4691-4, the ADA4692-4ARUZ has no shutdown pins - simplifying control logic but fixing quiescent current at 180 μA per channel under nominal conditions.

Its architecture features CMOS input stages delivering ultra-low input bias current (0.5 pA typ), low offset drift (4 μV/°C max), and high common-mode rejection (98 dB typ at 5 V). The 3.6 MHz GBP supports stable unity-gain operation with 2 kΩ load and 35 pF capacitance, achieving 52° phase margin and <1.5 µs settling to 0.1%.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 5 V single supply (±1.35 V to ±2.5 V dual) - enables direct interface with Li-ion, coin-cell, and 3.3 V/5 V logic rails.
Gain Bandwidth Product	3.6 MHz - supports closed-loop gains up to +100 at audio frequencies with <0.1% settling in ≤1.5 µs.
Input Bias Current	0.5 pA typical - preserves signal integrity in high-Z sensor nodes (e.g., pyroelectric, pH, photodiode).
Voltage Noise Density	16 nV/√Hz at 1 kHz - ensures low-noise amplification for microvolt-level signals without added filtering.
Offset Voltage Drift	4 μV/°C maximum - maintains accuracy across −40°C to +125°C industrial temperature range.
THD + N	0.001% at 1 kHz, AV = +1, RL = 2 kΩ, 5 V supply - meets high-fidelity audio and instrumentation linearity requirements.
Rail-to-Rail Output	Swings within 33 mV of V– and 2.67 V below V+ (2.7 V supply) - maximizes dynamic range in low-voltage systems.

Pinout & Package

ADA4692-4ARUZ is housed in a 14-lead TSSOP (RU-14) package with exposed pad for thermal enhancement and mechanical stability. Pin 1 is marked by a dot or notch; the exposed pad must be soldered to PCB ground plane for optimal thermal performance (θJA = 112°C/W).

Pin/Terminal	Circuit Role	Design Meaning
1	–IN A	Inverting input of Amplifier A - high-impedance node (0.5 pA IB) for precision feedback networks.
2	+IN A	Non-inverting input of Amplifier A - referenced to common-mode voltage range (−0.3 V to +3.9 V at 5 V).
3	V+	Positive supply rail - accepts 2.7 V to 5 V; decoupling capacitor required near pin.
4	OUT B	Output of Amplifier B - rail-to-rail capable, drives loads down to 600 Ω with <103 mV VOL.
5	–IN B	Inverting input of Amplifier B - electrically isolated from other channels; supports independent gain configurations.
6	+IN B	Non-inverting input of Amplifier B - matched input characteristics to Amplifier A for differential pair use.
7	OUT A	Output of Amplifier A - fully specified for 0.1% settling time (1.5 µs) and THD+N (0.001%).
8	V–	Negative supply rail - connects to GND in single-supply mode; critical reference for output swing and CMRR.
9	OUT D	Output of Amplifier D - identical AC/DC specs to OUT A/B/C; supports multi-channel filtering or buffering.
10	–IN D	Inverting input of Amplifier D - shares same input voltage range and bias current as other inputs.
11	+IN D	Non-inverting input of Amplifier D - enables independent sensor channel conditioning without cross-talk.
12	V–	Second V– connection - internal bond wire; must be connected to same ground net as Pin 8 for thermal and noise integrity.
13	+IN C	Non-inverting input of Amplifier C - supports simultaneous four-channel acquisition (e.g., ECG lead amplification).
14	–IN C	Inverting input of Amplifier C - matches input capacitance (2.5 pF diff, 7 pF common-mode) for balanced layout.

Key Features

Feature	Design Value
Ultra-low input bias current	0.5 pA typical - eliminates leakage-induced offset in photodiode transimpedance and piezoelectric charge amplifiers.
Low-noise precision amplification	16 nV/√Hz at 1 kHz and 3.2 µV p-p (0.1–10 Hz) - enables resolution of sub-microvolt signals without external filtering.
Rail-to-rail output swing	Within 33 mV of V– and 2.67 V below V+ (2.7 V supply) - maximizes usable output range in 3.3 V systems.
Wide temperature specification	Fully characterized from −40°C to +125°C - suitable for automotive cabin sensors and industrial process controllers.
High DC precision	500 µV typical offset voltage and 4 µV/°C max drift - reduces calibration frequency in portable medical devices.
Stable unity-gain operation	52° phase margin with 35 pF load - eliminates need for external compensation in ADC driver and active filter applications.

Applications

Photodiode Amplification	Portable Medical Instrumentation
Use Scenario: Converting weak photocurrents (pA–nA) from ambient light or pulse oximetry sensors into measurable voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) front-end with ultra-low input bias current and low noise. Use Value: Enables >120 dB dynamic range in optical sensing without guard rings or exotic PCB materials.	Use Scenario: Signal conditioning for ECG, EEG, or glucose monitor analog front-ends operating on coin-cell batteries. IC Role / Device Role / Timing Role: Quad-channel buffer, filter, and level-shifter for multi-lead biopotential acquisition. Use Value: 180 μA per amplifier extends battery life beyond 1 year while maintaining <1 µV p-p input-referred noise.
Low-Side Current Sensing	Audio Line Driver
Use Scenario: Measuring motor or LED load current via shunt resistor in ground-referenced paths. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail output for full-scale shunt voltage capture. Use Value: 0.5 pA input bias avoids error amplification in high-value gain-setting resistors (e.g., 1 MΩ).	Use Scenario: Driving 600 Ω or 2 kΩ audio loads in MP3 players and smartphone accessories. IC Role / Device Role / Timing Role: Low-distortion line driver with 0.001% THD+N and 3.6 MHz bandwidth. Use Value: Preserves audio fidelity across 20 Hz–20 kHz while consuming <1 mA total for stereo output.

Photodiode Amplification

Portable Medical Instrumentation

Use Scenario: Converting weak photocurrents (pA–nA) from ambient light or pulse oximetry sensors into measurable voltage signals.

IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) front-end with ultra-low input bias current and low noise.

Use Value: Enables >120 dB dynamic range in optical sensing without guard rings or exotic PCB materials.

Use Scenario: Signal conditioning for ECG, EEG, or glucose monitor analog front-ends operating on coin-cell batteries.

IC Role / Device Role / Timing Role: Quad-channel buffer, filter, and level-shifter for multi-lead biopotential acquisition.

Use Value: 180 μA per amplifier extends battery life beyond 1 year while maintaining <1 µV p-p input-referred noise.

Low-Side Current Sensing

Audio Line Driver

Use Scenario: Measuring motor or LED load current via shunt resistor in ground-referenced paths.

IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail output for full-scale shunt voltage capture.

Use Value: 0.5 pA input bias avoids error amplification in high-value gain-setting resistors (e.g., 1 MΩ).

Use Scenario: Driving 600 Ω or 2 kΩ audio loads in MP3 players and smartphone accessories.

IC Role / Device Role / Timing Role: Low-distortion line driver with 0.001% THD+N and 3.6 MHz bandwidth.

Use Value: Preserves audio fidelity across 20 Hz–20 kHz while consuming <1 mA total for stereo output.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision op amp applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADA4691-4ARUZ	Includes dual shutdown pins (SD A/B and SD C/D); 10 nA shutdown current vs. ADA4692-4's fixed 180 μA/channel.	Required where dynamic power gating of amplifier pairs is needed (e.g., duty-cycled sensor nodes).	Select ADA4691-4ARUZ only if shutdown functionality is mandatory; otherwise ADA4692-4ARUZ offers simpler layout and lower cost.
AD8694ARUZ	Higher supply current (525 μA/channel), wider GBW (10 MHz), no guaranteed 125°C operation.	Better suited for higher-speed active filters or fast-settling data acquisition, not ultra-low-power portable use.	Choose AD8694ARUZ when speed outweighs power budget; ADA4692-4ARUZ remains optimal for <200 μA/channel constraints.

Compared with ADA4691-4ARUZ and AD8694ARUZ, the ADA4692-4ARUZ uniquely balances micropower operation (180 μA), precision (0.5 pA IB, 16 nV/√Hz), and full industrial temperature support - making it the preferred choice for always-on, battery-limited, high-impedance sensing systems.

Availability

ADA4692-4ARUZ is available at Aetrix Electronics and suitable for portable medical instrumentation, photodiode-based environmental sensors, and low-side current monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADA4692-4ARUZ 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 Norwood, MA.

The ADA469x family was engineered specifically for ultra-low-power, high-precision signal conditioning in portable and harsh-environment applications - emphasizing low input bias current, rail-to-rail output, and robust operation from −40°C to +125°C.

FAQ

What is the maximum operating temperature for the ADA4692-4ARUZ?

The ADA4692-4ARUZ is fully specified over the extended industrial temperature range of −40°C to +125°C. All key parameters - including input bias current (0.5 pA typ), offset voltage drift (4 μV/°C max), and supply current (275 μA max per amplifier at +125°C) - are guaranteed across this range, making ADA4692-4ARUZ suitable for under-hood automotive and industrial control applications.

Does the ADA4692-4ARUZ support single-supply operation?

Yes, the ADA4692-4ARUZ supports true single-supply operation from 2.7 V to 5 V. Its input common-mode range extends to −0.3 V below V– and +3.9 V above V– (at 5 V supply), and its rail-to-rail output swings within 33 mV of V– and 2.67 V below V+ (2.7 V supply), enabling full utilization of low-voltage rails in battery-powered systems.

How does the ADA4692-4ARUZ differ from the ADA4691-4ARUZ?

The ADA4692-4ARUZ lacks shutdown pins, resulting in fixed 180 μA per amplifier supply current. In contrast, the ADA4691-4ARUZ integrates dual shutdown controls (SD A/B and SD C/D) enabling <10 nA total quiescent current in shutdown mode. Both share identical AC/DC specifications, package (14-lead TSSOP), and temperature rating, but ADA4692-4ARUZ simplifies design where dynamic power control is unnecessary.

What is the typical input offset voltage for the ADA4692-4ARUZ?

The typical input offset voltage for the ADA4692-4ARUZ is 500 μV at 25°C and 2.7 V supply, with a maximum of 2.5 mV over the full −40°C to +125°C temperature range. This low offset, combined with 4 μV/°C max drift, ensures stable DC accuracy in precision sensor interfaces without frequent recalibration.

Can the ADA4692-4ARUZ drive a 600 Ω load effectively?

Yes, the ADA4692-4ARUZ is fully characterized driving 600 Ω loads: output voltage low (VOL) is 103 mV max at 2.7 V supply and 128 mV max at 5 V supply, while THD+N remains 0.009% at 1 kHz. Its 1.3 V/µs slew rate and 52° phase margin ensure stable, low-distortion performance into 600 Ω - ideal for professional audio line drivers and legacy test equipment interfaces.

ADA4692-4ARUZ 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:: General Purpose

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 1.3V/µs

Gain Bandwidth Product:: 3.6 MHz

-3db Bandwidth:: -

Current - Input Bias:: 0.5 pA

Voltage - Input Offset:: 500 µV

Current - Supply:: 180µA (x4 Channels)

Current - Output / Channel:: 55 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-TSSOP

ADA4692-4ARUZ FAQ

1.How can I place an order for ADA4692-4ARUZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4692-4ARUZ 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 ADA4692-4ARUZ reliable?

The price and inventory of ADA4692-4ARUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4692-4ARUZ is usually 5 days.

3.What payment methods are accepted for ADA4692-4ARUZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4692-4ARUZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4692-4ARUZ?

ADA4692-4ARUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4692-4ARUZ 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 ADA4692-4ARUZ?

For technical support, including ADA4692-4ARUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4692-4ARUZ requirements.

6.How does Aetrix verify that ADA4692-4ARUZ is sourced from the original manufacturer or authorized distributors?

All ADA4692-4ARUZ 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 ADA4692-4ARUZ meets industry standards.

7.What is the process for return or replacement of ADA4692-4ARUZ?

All ADA4692-4ARUZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4692-4ARUZ, 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 ADA4692-4ARUZ part is unused and in its original packaging.

Return procedure for ADA4692-4ARUZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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