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

Analog Devices Inc. ADA4692-2ARZ-R7

Name: ADA4692-2ARZ-R7
Brand: Analog Devices Inc.
SKU: ADA4692-2ARZ-R7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADA4692-2ARZ-R7

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: ADA4692-2ARZ-R7.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

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Product details

Overview

ADA4692-2ARZ-R7 from Analog Devices is a dual, rail-to-rail output, low-noise operational amplifier optimized for precision sensor signal conditioning and portable instrumentation. It delivers 3.6 MHz gain bandwidth, 16 nV/√Hz voltage noise density at 1 kHz, 180 µA supply current per amplifier (typ), 500 µV typical offset voltage, and operates from 2.7 V to 5 V single supply or ±1.35 V to ±2.5 V dual supply - enabling high-fidelity amplification in battery-powered medical sensors and photodiode front-ends.

For engineers reviewing the ADA4692-2ARZ-R7 datasheet, ADA4692-2ARZ-R7 pinout, ADA4692-2ARZ-R7 application, or ADA4692-2ARZ-R7 equivalent, this page provides verified circuit role, package mapping (8-lead SOIC_N), thermal resistance (θJA = 120°C/W), channel separation (>120 dB at 100 Hz), and design-meaningful specifications including rail-to-rail output swing within 33 mV of rails (RL = 2 kΩ) and 0.003% THD+N at audio frequencies - critical for low-distortion ADC driver and active filter designs.

Technical Context

The ADA4692-2ARZ-R7 employs a CMOS input stage delivering 0.5 pA typical input bias current and 2.5 pF differential input capacitance, enabling high-impedance source interfacing without significant error. Its unity-gain-stable architecture achieves 49° phase margin with 35 pF capacitive load and supports closed-loop gains from +1 to –100 across 100 kHz to 1 MHz.

Unlike the pin-compatible ADA4691-2, the ADA4692-2ARZ-R7 omits shutdown functionality - confirmed by absence of SD pins in its SOIC pinout and explicit family documentation stating "ADA4692-4 is a quad version without shutdown". It is fully specified over –40°C to +125°C and features 70–98 dB CMRR and 80–90 dB PSRR across supply range.

Key Specifications

Parameter	Value and Actual Design Meaning
Gain Bandwidth Product	3.6 MHz - supports stable unity-gain operation up to 3.6 MHz with ≤1 µs settling to 0.1% for 2 V step (RL = 2 kΩ).
Input Bias Current	0.5 pA typical - enables direct connection to >1 GΩ sources (e.g., pyroelectric sensors) without measurable DC error.
Voltage Noise Density	16 nV/√Hz at 1 kHz - ensures <3.2 µV p-p integrated noise (0.1–10 Hz) for precision DC-coupled amplifiers.
Supply Current per Amp	180 µA typical at 5 V - allows dual-channel operation on coin-cell batteries for >1 year in always-on portable instrumentation.
Output Voltage Swing	Rail-to-rail: VOH = 4.95 V, VOL = 30 mV (RL = 2 kΩ, VSY = 5 V) - maximizes dynamic range into 12-bit+ SAR ADCs.
THD + N	0.001% at 1 kHz, AV = +1, RL = 2 kΩ - meets high-fidelity audio and measurement-grade linearity requirements.
Offset Voltage Drift	4 µV/°C max - limits drift-induced error to <0.4 mV over 100°C industrial temperature range.

Pinout & Package

ADA4692-2ARZ-R7 is packaged in an 8-lead SOIC_N (R-8) with θJA = 120°C/W and RoHS-compliant lead finish. The exposed pad is not present in this SOIC variant.

Pin	Circuit Role	Design Meaning
1	OUT A	Inverting amplifier output A - drives loads up to ±15 mA short-circuit current; rail-to-rail swing enables full-scale ADC input.
2	–IN A	Inverting input A - high-impedance CMOS node (0.5 pA IB); requires matched trace impedance for balanced noise rejection.
3	+IN A	Non-inverting input A - referenced to V– for single-supply operation; common-mode range extends to V– −0.3 V.
4	V–	Negative supply rail - connects to ground (single supply) or negative rail (dual supply); must be low-impedance for PSRR stability.
5	+IN B	Non-inverting input B - electrically isolated from Channel A; supports independent sensor inputs with >120 dB channel separation.
6	–IN B	Inverting input B - identical electrical characteristics to Pin 2; enables dual-channel differential sensing or stereo audio paths.
7	OUT B	Inverting amplifier output B - independently buffered; no crosstalk impact on OUT A below –120 dB at 100 Hz.
8	V+	Positive supply rail - accepts 2.7–5 V (single) or ±1.35–±2.5 V (dual); internal regulation ensures stable bias under load transients.

Key Features

Feature	Design Value
Low power consumption	180 µA per amplifier enables dual-channel operation at <1 mW total dissipation on 5 V supply - ideal for thermally constrained PCBs.
Rail-to-rail output	Swings within 30 mV of V– and 50 mV of V+ (RL = 2 kΩ) - preserves >98% of full-scale ADC input range without level-shifting circuitry.
Ultra-low input bias current	0.5 pA typical eliminates leakage-induced offset in high-Z photodiode and piezoelectric sensor interfaces - no guard ring required.
Low distortion	0.001% THD+N at 1 kHz ensures fidelity in audio preamps and precision waveform generation without post-processing correction.
Wide supply range	2.7–5 V single supply compatibility supports direct integration with Li-ion (3.0–4.2 V) and USB-powered systems without LDO overhead.

Applications

Photodiode Amplifier	Portable Medical Sensor
Use Scenario: Transimpedance amplification of weak photocurrents (pA–nA) from silicon photodiodes in pulse oximeters and environmental light meters. IC Role / Device Role / Timing Role: Precision current-to-voltage converter with ultra-low input bias current and low 1/f noise. Use Value: Enables sub-100 pA resolution without T-network compensation; 16 nV/√Hz noise density maintains SNR >80 dB in 10 Hz bandwidth.	Use Scenario: Amplifying microvolt-level bio-signals (ECG, EEG) from dry electrodes in wearable health monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with rail-to-rail output driving 16-bit SAR ADCs. Use Value: 500 µV offset and 4 µV/°C drift ensure baseline stability over body temperature shifts; 3.6 MHz GBW supports anti-alias filtering.
Low-Side Current Sense	ADC Driver
Use Scenario: Measuring load current in battery management systems by amplifying mV-level shunt voltage drops. IC Role / Device Role / Timing Role: High-common-mode-rejection difference amplifier with input range extending to V– −0.3 V. Use Value: 90 dB CMRR at DC rejects shunt resistor thermal EMF; rail-to-rail output matches 0–VREF ADC input range directly.	Use Scenario: Driving SAR and sigma-delta ADC inputs in data acquisition modules requiring low distortion and fast settling. IC Role / Device Role / Timing Role: Buffer and level-shifter with 1 µs 0.1% settling time and 0.003% THD+N. Use Value: Eliminates aperture jitter from ADC sampling clock; 30 mV VOL ensures clean 0 V reference even under 2 kΩ load.

Photodiode Amplifier

Portable Medical Sensor

Use Scenario: Transimpedance amplification of weak photocurrents (pA–nA) from silicon photodiodes in pulse oximeters and environmental light meters.

IC Role / Device Role / Timing Role: Precision current-to-voltage converter with ultra-low input bias current and low 1/f noise.

Use Value: Enables sub-100 pA resolution without T-network compensation; 16 nV/√Hz noise density maintains SNR >80 dB in 10 Hz bandwidth.

Use Scenario: Amplifying microvolt-level bio-signals (ECG, EEG) from dry electrodes in wearable health monitors.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with rail-to-rail output driving 16-bit SAR ADCs.

Use Value: 500 µV offset and 4 µV/°C drift ensure baseline stability over body temperature shifts; 3.6 MHz GBW supports anti-alias filtering.

Low-Side Current Sense

ADC Driver

Use Scenario: Measuring load current in battery management systems by amplifying mV-level shunt voltage drops.

IC Role / Device Role / Timing Role: High-common-mode-rejection difference amplifier with input range extending to V– −0.3 V.

Use Value: 90 dB CMRR at DC rejects shunt resistor thermal EMF; rail-to-rail output matches 0–VREF ADC input range directly.

Use Scenario: Driving SAR and sigma-delta ADC inputs in data acquisition modules requiring low distortion and fast settling.

IC Role / Device Role / Timing Role: Buffer and level-shifter with 1 µs 0.1% settling time and 0.003% THD+N.

Use Value: Eliminates aperture jitter from ADC sampling clock; 30 mV VOL ensures clean 0 V reference even under 2 kΩ load.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADA4691-2ARZ-R7	Includes dual independent shutdown pins; otherwise identical specs (same GBW, noise, IB, offset).	Required where system-level power gating of individual amplifiers is needed (e.g., multi-sensor sleep/wake sequencing).	Select ADA4691-2ARZ-R7 only if shutdown control is mandatory; ADA4692-2ARZ-R7 offers lower cost and simpler layout without SD traces.
AD8617ARMZ-R7	Higher supply current (220 µA vs. 180 µA), higher noise (24 nV/√Hz), no guaranteed rail-to-rail output (min VOL = 60 mV).	Suitable for less demanding portable audio where 0.005% THD+N suffices and 100 µA extra quiescent current is acceptable.	Choose AD8617ARMZ-R7 only when legacy ADI dual op amp footprint reuse is prioritized over noise/power optimization.

Compared with ADA4691-2ARZ-R7, the ADA4692-2ARZ-R7 removes shutdown logic to reduce cost and complexity while retaining identical analog performance; versus AD8617ARMZ-R7, it delivers 8 nV/√Hz lower noise and 30 mV tighter output swing - critical for 16-bit+ measurement accuracy.

Availability

ADA4692-2ARZ-R7 is available at Aetrix Electronics and suitable for portable medical devices, photodiode-based environmental sensors, and low-power industrial data loggers requiring stable component supply across extended temperature ranges (–40°C to +125°C).

Supply support for ADA4692-2ARZ-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 Norwood, MA.

The ADA469x family targets precision, low-power signal conditioning in space-constrained portable and industrial systems - emphasizing rail-to-rail output, femtoampere input bias, and wide temperature operation without shutdown overhead.

FAQ

What is the maximum operating supply voltage for ADA4692-2ARZ-R7?

The ADA4692-2ARZ-R7 has an absolute maximum supply voltage rating of 6 V, but its specified operating range is 2.7 V to 5 V for single supply or ±1.35 V to ±2.5 V for dual supply. Operation beyond 5 V risks violating the 3.6 MHz gain bandwidth specification and may increase input bias current nonlinearly. Always observe the 6 V absolute maximum to prevent permanent damage.

Does ADA4692-2ARZ-R7 support true rail-to-rail input common-mode range?

No. The ADA4692-2ARZ-R7 features rail-to-rail *output* swing but not rail-to-rail input. Its input common-mode voltage range extends from V– −0.3 V to V+ −1.1 V (at 2.7 V supply) or V+ −1.1 V (at 5 V supply), as documented in Tables 2 and 3. For true rail-to-rail input, consider the ADA4522-2 or AD8628 families.

Can ADA4692-2ARZ-R7 drive capacitive loads up to 1000 pF?

The ADA4692-2ARZ-R7 is unity-gain stable with up to 35 pF capacitive load per datasheet testing conditions. Driving >100 pF requires external isolation resistance (e.g., 10–100 Ω in series with output) or feedback capacitor compensation to maintain phase margin >45° and prevent peaking or oscillation - verified in Figure 22 and Figure 25 open-loop response plots.

Is ADA4692-2ARZ-R7 pin-compatible with ADA4691-2ARZ-R7 in SOIC packages?

No. ADA4691-2ARZ-R7 uses a 10-lead LFCSP or 9-ball WLCSP package and includes two dedicated shutdown pins (SD A and SD B). ADA4692-2ARZ-R7 is offered in 8-lead SOIC_N and 8-lead LFCSP variants with no shutdown pins - confirmed by Figures 7 and 6 pinouts and the General Description stating "ADA4692-4 is a quad version without shutdown".

What is the typical channel separation performance of ADA4692-2ARZ-R7?

The ADA4692-2ARZ-R7 achieves >120 dB channel separation at 100 Hz and >100 dB at 10 kHz, as shown in Figure 53. This high isolation enables simultaneous dual-channel measurement (e.g., differential ECG leads or stereo microphone preamps) without crosstalk-induced measurement error - critical for maintaining signal integrity in compact PCB layouts.

ADA4692-2ARZ-R7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 2

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 (x2 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:: 8-SOIC

ADA4692-2ARZ-R7 FAQ

1.How can I place an order for ADA4692-2ARZ-R7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4692-2ARZ-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 ADA4692-2ARZ-R7 reliable?

The price and inventory of ADA4692-2ARZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4692-2ARZ-R7 is usually 5 days.

3.What payment methods are accepted for ADA4692-2ARZ-R7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4692-2ARZ-R7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4692-2ARZ-R7?

ADA4692-2ARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4692-2ARZ-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 ADA4692-2ARZ-R7?

For technical support, including ADA4692-2ARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4692-2ARZ-R7 requirements.

6.How does Aetrix verify that ADA4692-2ARZ-R7 is sourced from the original manufacturer or authorized distributors?

All ADA4692-2ARZ-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 ADA4692-2ARZ-R7 meets industry standards.

7.What is the process for return or replacement of ADA4692-2ARZ-R7?

All ADA4692-2ARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4692-2ARZ-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 ADA4692-2ARZ-R7 part is unused and in its original packaging.

Return procedure for ADA4692-2ARZ-R7:

1.Submit a request within 90 days.

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

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