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

Analog Devices Inc. ADA4077-4ARUZ-RL

Name: ADA4077-4ARUZ-RL
Brand: Analog Devices Inc.
SKU: ADA4077-4ARUZ-RL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADA4077-4ARUZ-RL

Manufacturer:: Analog Devices Inc.

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: ADA4077-4ARUZ-RL.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14TSSOP

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Product details

Overview

ADA4077-4ARUZ-RL from Analog Devices is a quad-channel, high-precision operational amplifier in 14-lead TSSOP package, delivering 25 µV max offset voltage (A grade), 0.75 µV/°C max drift, 6.9 nV/√Hz voltage noise density at 1 kHz, 3.9 MHz gain bandwidth, and ±10 mA output drive - used in RTD front-end signal conditioning and precision optical network control circuits.

For engineers reviewing the ADA4077-4ARUZ-RL datasheet, ADA4077-4ARUZ-RL pinout, ADA4077-4ARUZ-RL application, or ADA4077-4ARUZ-RL equivalent, key selection criteria include guaranteed low drift over −40°C to +125°C, MSL1 reflow rating, no phase reversal under overvoltage, and quad-channel channel separation of −125 dB at 1 kHz.

Technical Context

The ADA4077-4ARUZ-RL implements a sixth-generation precision op amp architecture evolved from the OP07 family, featuring proprietary bipolar process technology optimized for ultra-low offset and drift while maintaining low input bias current (1 nA max) across temperature. Its input stage avoids JFET limitations, enabling stable bias current up to +125°C.

It supports dual-supply operation from ±2.5 V to ±15 V with rail-to-rail output swing capability (±3.2 V min at ±5 V, ±13.2 V min at ±15 V), unity-gain stability, and immunity to phase reversal - critical for sensor interfaces where input signals may exceed common-mode limits during transients or fault conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
Offset Voltage	50 µV max at 25°C (A grade, TSSOP); ensures <0.05% initial error in 1 V full-scale precision measurement systems
Offset Drift	0.75 µV/°C max over −40°C to +125°C; contributes <60 µV total drift across full temp range - suitable for uncalibrated industrial sensors
Voltage Noise Density	6.9 nV/√Hz at 1 kHz; enables <1 µV RMS integrated noise in 10 Hz–10 kHz band for low-level thermocouple amplification
Gain Bandwidth Product	3.9 MHz; supports stable closed-loop gain ≥100 at 30 kHz for anti-aliasing filter stages
Supply Current	400 µA per amplifier typical; allows four channels to operate on <2 mA total - ideal for battery-powered instrumentation
CMRR / PSRR	≥120 dB min; rejects >1 million:1 common-mode or supply ripple interference in noisy PLC environments
Channel Separation	−125 dB at 1 kHz; prevents crosstalk-induced errors in multi-sensor synchronous sampling systems

Pinout & Package

ADA4077-4ARUZ-RL is housed in a 14-lead TSSOP (RU-14) package, 5.0 mm × 4.4 mm × 1.2 mm body, MSL1 rated, compatible with standard lead-free reflow profiles (peak 260°C).

Pin/Terminal	Circuit Role	Design Meaning
1	OUT A	Amplifier A output; drives external load or next-stage filter with ±10 mA capability
2	−IN A	Inverting input for Channel A; connects to feedback network or differential sensing node
3	+IN A	Noninverting input for Channel A; accepts low-current sensor signals (e.g., RTD bridge leg)
4	V+	Positive supply rail; requires local 100 nF ceramic bypass capacitor to minimize PSRR degradation
5	+IN B	Noninverting input for Channel B; electrically isolated from Channel A inputs to preserve channel separation
6	−IN B	Inverting input for Channel B; referenced independently for dual-sensor differential acquisition
7	OUT B	Amplifier B output; shares no internal routing with OUT A to maintain −125 dB isolation
8	OUT C	Amplifier C output; enables three independent signal paths without external multiplexing
9	−IN C	Inverting input for Channel C; supports cascaded gain stages or active filtering configurations
10	+IN C	Noninverting input for Channel C; matched input impedance to +IN A/B for common-mode rejection consistency
11	V−	Negative supply rail; must be decoupled separately from V+ to prevent ground bounce coupling
12	+IN D	Noninverting input for Channel D; allows simultaneous 4-channel analog front-end in compact layout
13	−IN D	Inverting input for Channel D; supports fully differential input configurations when paired with −IN A/B/C
14	OUT D	Amplifier D output; completes quad-channel functionality with identical AC/DC specs to other channels

Key Features

Feature	Design Value
No phase reversal	Immunity to polarity inversion even when input exceeds ±VSY rails - eliminates latch-up risk in overvoltage sensor interfaces
MSL1 reflow rating	Qualified for peak 260°C reflow per IPC/JEDEC J-STD-020 - ensures reliability in high-density, thermally constrained PCB assemblies
Long-term offset drift	0.5 µV typical over 10,000 hours - reduces calibration interval requirements in field-deployed test equipment
Temperature hysteresis	1 µV typical after −40°C ↔ +125°C cycling - maintains repeatability in thermal chamber control loops
Capacitive load drive	Stable with >1000 pF loads without external compensation - simplifies anti-aliasing filter design with ceramic capacitors

Applications

RTD Temperature Sensing	Optical Power Monitoring
Use Scenario: Four-wire RTD measurement in industrial process controllers, where ambient temperature swings from −25°C to +85°C. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end, configured as low-power linearized bridge amplifier per Analog Devices Figure 70. Use Value: Sub-0.1 mW RTD self-heating (via 500 µA max supply current) ensures <0.1°C thermal error; 0.75 µV/°C drift enables uncalibrated operation over full industrial range.	Use Scenario: Real-time optical transmitter power stabilization in 10G/25G SFP+ modules using photodiode feedback. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) stage converting photodiode current to voltage, with quad channels supporting dual TX/RX monitoring. Use Value: 6.9 nV/√Hz noise density and −125 dB channel separation prevent cross-talk between transmit and receive monitor paths; MSL1 rating ensures survivability during module rework.
Precision Data Acquisition	Programmable Gain Instrumentation
Use Scenario: 24-bit sigma-delta ADC front-end in portable multimeters requiring 100 ppm accuracy over 0–50°C. IC Role / Device Role / Timing Role: DC-coupled, low-drift buffer and level-shifter preceding ADC driver, operating at ±5 V supplies. Use Value: 25 µV max offset and 120 dB CMRR suppress common-mode pickup from shared digital grounds; 400 µA/channel current enables 8-hour battery life in handheld units.	Use Scenario: Multi-range voltage measurement in automated test equipment (ATE), switching gains from 1× to 1000× via relay matrix. IC Role / Device Role / Timing Role: Quad-channel programmable gain stage, with one channel dedicated to reference buffering and three for signal path scaling. Use Value: Matched offset and drift across all four channels (<5 µV inter-channel offset variation) ensure consistent gain accuracy without per-channel calibration; no phase reversal prevents output glitches during gain switching transients.

RTD Temperature Sensing

Optical Power Monitoring

Use Scenario: Four-wire RTD measurement in industrial process controllers, where ambient temperature swings from −25°C to +85°C.

IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end, configured as low-power linearized bridge amplifier per Analog Devices Figure 70.

Use Value: Sub-0.1 mW RTD self-heating (via 500 µA max supply current) ensures <0.1°C thermal error; 0.75 µV/°C drift enables uncalibrated operation over full industrial range.

Use Scenario: Real-time optical transmitter power stabilization in 10G/25G SFP+ modules using photodiode feedback.

IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) stage converting photodiode current to voltage, with quad channels supporting dual TX/RX monitoring.

Use Value: 6.9 nV/√Hz noise density and −125 dB channel separation prevent cross-talk between transmit and receive monitor paths; MSL1 rating ensures survivability during module rework.

Precision Data Acquisition

Programmable Gain Instrumentation

Use Scenario: 24-bit sigma-delta ADC front-end in portable multimeters requiring 100 ppm accuracy over 0–50°C.

IC Role / Device Role / Timing Role: DC-coupled, low-drift buffer and level-shifter preceding ADC driver, operating at ±5 V supplies.

Use Value: 25 µV max offset and 120 dB CMRR suppress common-mode pickup from shared digital grounds; 400 µA/channel current enables 8-hour battery life in handheld units.

Use Scenario: Multi-range voltage measurement in automated test equipment (ATE), switching gains from 1× to 1000× via relay matrix.

IC Role / Device Role / Timing Role: Quad-channel programmable gain stage, with one channel dedicated to reference buffering and three for signal path scaling.

Use Value: Matched offset and drift across all four channels (<5 µV inter-channel offset variation) ensure consistent gain accuracy without per-channel calibration; no phase reversal prevents output glitches during gain switching transients.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
OP4177ARUZ	Higher offset drift (1.2 µV/°C max), lower GBP (1.3 MHz), no MSL1 rating; SOIC-14 only	Limited to lower-bandwidth, less thermally demanding applications; not qualified for high-reliability reflow	Choose when cost sensitivity outweighs long-term stability and reflow robustness requirements
AD8677ARUZ	Single-channel only; identical offset (25 µV max) and drift (0.75 µV/°C), but higher noise (12 nV/√Hz)	Requires four separate packages for quad functionality - increases board area and assembly cost	Prefer for space-constrained single-channel designs where lowest possible noise is secondary to offset performance

Compared with OP4177ARUZ and AD8677ARUZ, ADA4077-4ARUZ-RL uniquely delivers quad-channel integration, MSL1 qualification, and best-in-class 6.9 nV/√Hz noise within the same 14-lead TSSOP footprint - reducing component count and improving thermal tracking in multi-sensor systems.

Availability

ADA4077-4ARUZ-RL is available at Aetrix Electronics and suitable for precision sensor signal conditioning, optical network control circuits, and industrial process control front-end amplifiers requiring stable component supply across extended temperature ranges and high-reliability manufacturing.

Supply support for ADA4077-4ARUZ-RL 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, serving industrial, communications, automotive, and healthcare markets.

The ADA4077 family represents Analog Devices' sixth-generation evolution of the OP07 precision op amp lineage, engineered specifically for ultra-stable, low-noise, wide-temperature industrial and instrumentation applications where long-term calibration integrity is critical.

FAQ

What is the maximum operating temperature range for the ADA4077-4ARUZ-RL?

The ADA4077-4ARUZ-RL is specified over an extended industrial temperature range of −40°C to +125°C. This range is validated across all key parameters including offset voltage, drift, CMRR, and output drive capability. The device maintains MSL1 reflow compatibility up to 260°C peak, ensuring robustness during PCB assembly even in thermally demanding layouts. All electrical characteristics in the datasheet Rev. F are guaranteed across this full range.

Does the ADA4077-4ARUZ-RL require external compensation for stability?

No, the ADA4077-4ARUZ-RL is unity-gain stable and does not require external compensation. It remains stable driving capacitive loads exceeding 1000 pF directly - a key advantage for anti-aliasing filter implementations using ceramic capacitors. This behavior is confirmed in the datasheet's Typical Performance Characteristics (Figures 40–45) and Theory of Operation section, which states "Outputs are stable with capacitive loads of more than 1000 pF with no external compensation."

What is the pin-compatible replacement for ADA4077-4ARUZ-RL in SOIC package?

The pin-compatible SOIC variant is ADA4077-4ARZ, also in 14-lead SOIC (R-14) package, sharing identical pinout, electrical specifications, and temperature rating. While both parts use the same functional pin mapping per Table 8, ADA4077-4ARZ has higher thermal resistance (θJA = 115°C/W vs. 240°C/W for TSSOP), resulting in greater junction temperature rise under load. No PCB redesign is needed for footprint interchange, but thermal derating must be verified.

How does the ADA4077-4ARUZ-RL handle input overvoltage conditions?

The ADA4077-4ARUZ-RL features internal input protection diodes to both supply rails and is immune to phase reversal - a critical failure mode in many op amps when inputs exceed common-mode limits. As documented in the Applications Information section, it operates safely even when input voltages exceed ±VSY, preventing system lockups or damage in transient-prone sensor interfaces. Absolute maximum ratings allow ±VSY input voltage, with current limited to ±10 mA via internal clamps.

What is the long-term offset stability of ADA4077-4ARUZ-RL after 10,000 hours?

Per the datasheet Rev. F Applications Information section, the ADA4077-4ARUZ-RL exhibits a typical long-term offset drift of 0.5 µV after 10,000 hours (≈13 months) of operation under accelerated stress conditions - measured on soldered FR4 PCBs per JEDEC J-STD-020D. This represents less than 2% of its maximum room-temperature offset specification (25 µV for B grade, 50 µV for A grade), confirming exceptional aging stability for metrology-grade applications.

ADA4077-4ARUZ-RL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: -

Slew Rate:: 1.2V/µs

Gain Bandwidth Product:: 3.6 MHz

-3db Bandwidth:: 5.5 MHz

Current - Input Bias:: 400 pA

Voltage - Input Offset:: 15 µV

Current - Supply:: 400µA (x4 Channels)

Current - Output / Channel:: 10 mA

Voltage - Supply Span (Min):: 5 V

Voltage - Supply Span (Max):: 30 V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-TSSOP

ADA4077-4ARUZ-RL FAQ

1.How can I place an order for ADA4077-4ARUZ-RL through Aetrix?

Please submit a Request for Quotation (RFQ) for ADA4077-4ARUZ-RL 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 ADA4077-4ARUZ-RL reliable?

The price and inventory of ADA4077-4ARUZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4077-4ARUZ-RL is usually 5 days.

3.What payment methods are accepted for ADA4077-4ARUZ-RL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4077-4ARUZ-RL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADA4077-4ARUZ-RL?

ADA4077-4ARUZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADA4077-4ARUZ-RL 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 ADA4077-4ARUZ-RL?

For technical support, including ADA4077-4ARUZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4077-4ARUZ-RL requirements.

6.How does Aetrix verify that ADA4077-4ARUZ-RL is sourced from the original manufacturer or authorized distributors?

All ADA4077-4ARUZ-RL 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 ADA4077-4ARUZ-RL meets industry standards.

7.What is the process for return or replacement of ADA4077-4ARUZ-RL?

All ADA4077-4ARUZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADA4077-4ARUZ-RL, 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 ADA4077-4ARUZ-RL part is unused and in its original packaging.

Return procedure for ADA4077-4ARUZ-RL:

1.Submit a request within 90 days.

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

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