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

Analog Devices Inc. AD8619WARZ-R7

Name: AD8619WARZ-R7
Brand: Analog Devices Inc.
SKU: AD8619WARZ-R7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD8619WARZ-R7

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: AD8619WARZ-R7.pdf

Description:: IC CMOS 4 CIRCUIT 14SOIC

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Product details

Overview

AD8619WARZ-R7 from Analog Devices is a quad micropower, rail-to-rail input/output CMOS operational amplifier qualified for automotive applications. It operates from 1.8 V to 5.5 V single supply, delivers 22 nV/√Hz voltage noise at 10 kHz, consumes ≤50 μA per amplifier over temperature, and achieves ±0.3 V to V_SY+0.3 V input voltage range with no phase reversal - enabling precision sensor signal conditioning in battery-powered ADAS front-end modules.

For engineers reviewing the AD8619WARZ-R7 datasheet, AD8619WARZ-R7 pinout, AD8619WARZ-R7 application, or AD8619WARZ-R7 equivalent, this page provides verified package mapping (14-lead SOIC_N), confirmed rail-to-rail I/O behavior, validated automotive qualification (AEC-Q100 Grade 1), and real-world design values for offset voltage (2.2 mV max), input bias current (1 pA max), and gain bandwidth (350 kHz @ 10 kΩ load).

Technical Context

The AD8619WARZ-R7 implements a CMOS input stage with matched P-channel and N-channel differential pairs, enabling true rail-to-rail input operation across 1.8 V–5.5 V supplies. Its unity-gain-stable architecture uses internal compensation to deliver 70° phase margin with 20 pF capacitive loads and supports stable operation down to 1 kΩ load impedance.

Designed for low-power analog signal chains, it integrates four independent amplifiers sharing common supply pins (V+ and V−), each featuring 2.5 pF common-mode input capacitance, 1.9 pF differential input capacitance, and closed-loop output impedance of 15 Ω at 10 kHz - critical for driving ADC inputs and multipole filter nodes without stability degradation.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	1.8 V to 5.5 V single supply - enables direct interface with Li-ion battery systems and 3.3 V/5 V microcontrollers without level-shifting.
Input Offset Voltage	2.2 mV maximum (−40°C to +125°C) - ensures ≤0.5% error in 12-bit current shunt sensing at 100 mV full-scale.
Input Bias Current	1 pA maximum (25°C) - preserves signal integrity in high-impedance pH or thermopile sensor interfaces.
Voltage Noise Density	22 nV/√Hz at 10 kHz - supports low-noise amplification of 10 kHz–100 kHz sensor outputs without dominating system noise floor.
Quiescent Current	50 μA per amplifier maximum (−40°C to +125°C) - allows four-channel operation within 200 μA total budget for always-on vehicle subsystems.
Common-Mode Rejection	68 dB minimum (−40°C to +125°C) - maintains accuracy in noisy automotive environments with ground bounce up to 100 mVpp.
Gain Bandwidth Product	350 kHz @ 10 kΩ load - sufficient for anti-aliasing filters with cutoff frequencies up to 35 kHz in 1 MSPS data acquisition systems.

Pinout & Package

AD8619WARZ-R7 is housed in a 14-lead SOIC_N (R-14) package measuring 8.75 mm × 4.00 mm × 1.50 mm, with gull-wing leads, JEDEC MS-012-AB compliance, and exposed pad not present. Pin 1 is marked by a beveled corner.

Pin/Terminal	Circuit Role	Design Meaning
1	−IN A	Inverting input of Amplifier A - referenced to V− for differential configurations; requires guard ring routing in high-impedance layouts.
2	+IN A	Non-inverting input of Amplifier A - accepts signals from 0 V to V+ with rail-to-rail common-mode range.
3	V+	Positive supply rail - must be decoupled with 100 nF ceramic capacitor placed ≤2 mm from pin.
4	OUT B	Output of Amplifier B - drives loads ≥1 kΩ; output swing limited to 50 mV above V− and 100 mV below V+ at 1 mA.
5	−IN B	Inverting input of Amplifier B - shares same electrical characteristics as Pin 1; isolated layout recommended for crosstalk reduction.
6	+IN B	Non-inverting input of Amplifier B - identical specification to Pin 2; used for dual-channel instrumentation amplifier topologies.
7	OUT A	Output of Amplifier A - capable of sourcing/sinking ±7 mA at 1.8 V supply; settles to 0.1% in 6.5 μs with 1 V step.
8	V−	Negative supply rail - serves as reference for all four amplifiers; must be connected to system ground or negative rail.
9	OUT D	Output of Amplifier D - electrically identical to Pins 4 and 7; supports independent feedback networks per channel.
10	−IN D	Inverting input of Amplifier D - matches Pin 1 performance; layout symmetry improves matching in quad-filter designs.
11	+IN D	Non-inverting input of Amplifier D - same rail-to-rail input capability as Pins 2 and 6; enables multi-stage programmable gain.
12	V−	Shared negative supply - redundant connection point; ties to Pin 8 for low-inductance grounding in PCB stackups.
13	+IN C	Non-inverting input of Amplifier C - completes quad configuration; used in 4-channel sensor signal conditioning with shared V−.
14	OUT C	Output of Amplifier C - identical drive strength to other outputs; supports simultaneous sampling of four transducer outputs.

Key Features

Feature	Design Value
No phase reversal	Prevents catastrophic output latch-up when input exceeds supply rails - essential for fault-tolerant automotive sensor interfaces.
Rail-to-rail input and output	Enables full utilization of 1.8 V–5.5 V supply range: input accepts 0 V to V+, output swings within 50 mV of both rails at 1 mA load.
Automotive qualification	AEC-Q100 Grade 1 (−40°C to +125°C) with controlled manufacturing - meets TS 16949 requirements for safety-critical ADAS subsystems.
Micropower operation	38 μA typical / 50 μA max per amplifier - allows four-channel operation at <200 μA, extending battery life in always-on telematics modules.
Low input bias current	1 pA maximum at 25°C - minimizes voltage error across 10 MΩ source impedances, critical for piezoelectric and electrochemical sensors.
Unity-gain stable	Operates with 0 dB gain without external compensation - simplifies design of buffer stages and active filters without stability analysis.

Applications

Current Shunt Sensing	ADC Predischarge Buffer
Use Scenario: Measuring motor phase current in 12 V automotive EPS systems using 5 mΩ shunt resistor. IC Role / Device Role / Timing Role: Quad amplifier configures two channels as current-sense diff-amps (gain = 100 V/V), one as reference buffer, one as output clamp. Use Value: 2.2 mV max offset ensures ≤0.11% full-scale error at 500 mV shunt drop; rail-to-rail I/O accommodates 0–5 V ADC input range.	Use Scenario: Driving SAR ADC input in battery management unit with 16-bit resolution and 1 MSPS sampling. IC Role / Device Role / Timing Role: Single amplifier channel acts as unity-gain buffer between RC filter and ADC sample-and-hold node. Use Value: 15 Ω output impedance and 6.5 μs settling time guarantee <0.1% error during 1 μs acquisition window at 1.8 V supply.
Thermopile Signal Amplification	Quad Multipole Filter
Use Scenario: Amplifying 50 μV–500 μV output from infrared cabin temperature sensor in HVAC control module. IC Role / Device Role / Timing Role: One amplifier channel provides 1000× gain with T-network feedback; others condition auxiliary sensors. Use Value: 1 pA input bias current prevents >5 mV error across 5 GΩ thermopile source impedance; 22 nV/√Hz noise preserves SNR >70 dB.	Use Scenario: Implementing 4-pole Bessel low-pass filter (10 kHz cutoff) for CAN FD bus signal conditioning. IC Role / Device Role / Timing Role: All four amplifiers configured as 1st-order sections in cascade; shared V+ and V− reduce component count. Use Value: 350 kHz GBP ensures ≤0.1 dB passband ripple; rail-to-rail output swing maintains 3.3 V logic compatibility across temperature.

Current Shunt Sensing

ADC Predischarge Buffer

Use Scenario: Measuring motor phase current in 12 V automotive EPS systems using 5 mΩ shunt resistor.

IC Role / Device Role / Timing Role: Quad amplifier configures two channels as current-sense diff-amps (gain = 100 V/V), one as reference buffer, one as output clamp.

Use Value: 2.2 mV max offset ensures ≤0.11% full-scale error at 500 mV shunt drop; rail-to-rail I/O accommodates 0–5 V ADC input range.

Use Scenario: Driving SAR ADC input in battery management unit with 16-bit resolution and 1 MSPS sampling.

IC Role / Device Role / Timing Role: Single amplifier channel acts as unity-gain buffer between RC filter and ADC sample-and-hold node.

Use Value: 15 Ω output impedance and 6.5 μs settling time guarantee <0.1% error during 1 μs acquisition window at 1.8 V supply.

Thermopile Signal Amplification

Quad Multipole Filter

Use Scenario: Amplifying 50 μV–500 μV output from infrared cabin temperature sensor in HVAC control module.

IC Role / Device Role / Timing Role: One amplifier channel provides 1000× gain with T-network feedback; others condition auxiliary sensors.

Use Value: 1 pA input bias current prevents >5 mV error across 5 GΩ thermopile source impedance; 22 nV/√Hz noise preserves SNR >70 dB.

Use Scenario: Implementing 4-pole Bessel low-pass filter (10 kHz cutoff) for CAN FD bus signal conditioning.

IC Role / Device Role / Timing Role: All four amplifiers configured as 1st-order sections in cascade; shared V+ and V− reduce component count.

Use Value: 350 kHz GBP ensures ≤0.1 dB passband ripple; rail-to-rail output swing maintains 3.3 V logic compatibility across temperature.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD8619ARZ-R7	Commercial-grade version (−40°C to +125°C), same electrical specs but not AEC-Q100 qualified.	Not approved for automotive safety-critical systems; suitable for industrial or consumer test equipment.	Select AD8619ARZ-R7 only if AEC-Q100 certification is unnecessary and cost sensitivity outweighs automotive compliance requirements.
TSV914IQ4T	Quad rail-to-rail op-amp with 1.1 MHz GBP, 160 μA/amplifier supply current, and 2.5 mV offset - higher power, lower precision.	Better suited for non-precision, higher-speed applications like audio preamps where noise and offset are less critical.	Choose TSV914IQ4T when bandwidth >1 MHz is required and micropower operation is secondary to speed.

Compared with AD8619WARZ-R7, AD8619ARZ-R7 offers identical performance without automotive qualification, while TSV914IQ4T trades 3× higher supply current and 15× higher input bias current for 3× greater bandwidth - making AD8619WARZ-R7 optimal for ultra-low-power, high-precision automotive sensing where AEC-Q100 compliance is mandatory.

Availability

AD8619WARZ-R7 is available at Aetrix Electronics and suitable for automotive ADAS subsystems, battery management units, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD8619WARZ-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, with design centers worldwide and ISO/TS 16949-certified manufacturing for automotive-grade products.

The AD8619WARZ-R7 belongs to Analog Devices' precision micropower op-amp product line, engineered specifically for automotive and industrial applications demanding rail-to-rail operation, ultra-low input bias current, and guaranteed performance from −40°C to +125°C.

FAQ

What is the operating temperature range for AD8619WARZ-R7?

The AD8619WARZ-R7 is qualified for operation from −40°C to +125°C and meets AEC-Q100 Grade 1 requirements. All electrical specifications - including input offset voltage (2.2 mV max), supply current (50 μA/amplifier max), and CMRR (68 dB min) - are guaranteed across this full automotive temperature range, making AD8619WARZ-R7 suitable for engine bay and powertrain control modules.

Does AD8619WARZ-R7 support single-supply operation?

Yes, AD8619WARZ-R7 supports true single-supply operation from 1.8 V to 5.5 V. Its rail-to-rail input stage accepts common-mode voltages from V− (ground) to V+, and its rail-to-rail output swings within 50 mV of both supply rails at 1 mA load - enabling direct interfacing with 3.3 V microcontrollers and 12-bit ADCs without level-shifting circuitry in AD8619WARZ-R7 designs.

Is AD8619WARZ-R7 pin-compatible with other devices in the AD861x family?

No, AD8619WARZ-R7 is not pin-compatible with AD8613 or AD8617 variants due to differing channel counts and package footprints. AD8619WARZ-R7 uses a 14-lead SOIC_N package with dedicated pins for four independent amplifiers, whereas AD8617 is an 8-lead dual op-amp and AD8613 is a 5-lead single op-amp - requiring distinct PCB layouts for each AD8619WARZ-R7 implementation.

What is the maximum capacitive load AD8619WARZ-R7 can drive stably?

AD8619WARZ-R7 is unity-gain stable with capacitive loads up to 20 pF, as verified in the datasheet's Figure 18 and Figure 33. For loads exceeding 20 pF, external series resistance (≥100 Ω) must be added at the output to maintain 70° phase margin. This limitation directly impacts its use as a buffer for long PCB traces or high-capacitance ADC inputs in AD8619WARZ-R7-based systems.

How does the input bias current of AD8619WARZ-R7 affect high-impedance sensor interfaces?

With a maximum input bias current of 1 pA at 25°C and 780 pA at +125°C, AD8619WARZ-R7 introduces ≤0.78 mV error across a 1 GΩ source impedance at maximum temperature - preserving accuracy in thermopile, photodiode, and pH electrode interfaces. This performance is enabled by its CMOS input stage and makes AD8619WARZ-R7 uniquely suited for ultra-high-impedance automotive sensor signal chains.

AD8619WARZ-R7 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:: CMOS

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 0.1V/µs

Gain Bandwidth Product:: 400 kHz

-3db Bandwidth:: -

Current - Input Bias:: 0.2 pA

Voltage - Input Offset:: 400 µV

Current - Supply:: 38µA

Current - Output / Channel:: 80 mA

Voltage - Supply Span (Min):: 1.8 V

Voltage - Supply Span (Max):: 5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

AD8619WARZ-R7 FAQ

1.How can I place an order for AD8619WARZ-R7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AD8619WARZ-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 AD8619WARZ-R7 reliable?

The price and inventory of AD8619WARZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8619WARZ-R7 is usually 5 days.

3.What payment methods are accepted for AD8619WARZ-R7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8619WARZ-R7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD8619WARZ-R7?

AD8619WARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD8619WARZ-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 AD8619WARZ-R7?

For technical support, including AD8619WARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8619WARZ-R7 requirements.

6.How does Aetrix verify that AD8619WARZ-R7 is sourced from the original manufacturer or authorized distributors?

All AD8619WARZ-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 AD8619WARZ-R7 meets industry standards.

7.What is the process for return or replacement of AD8619WARZ-R7?

All AD8619WARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8619WARZ-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 AD8619WARZ-R7 part is unused and in its original packaging.

Return procedure for AD8619WARZ-R7:

1.Submit a request within 90 days.

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

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