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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsADA4077-2BRZ-R7
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ADA4077-2BRZ-R7 - Analog Devices Inc.

Manufacturer Part Number
ADA4077-2BRZ-R7
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-ADA4077-2BRZ-R7
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
3,676 pcs available, New & Original
Parts Description
IC OPAMP GP 2 CIRCUIT 8SOIC
Package
8-SOIC
Data sheet
ADA4077-2BRZ-R7.pdf

PCN Assembly/Origin

Mult Dev 04/Apr/2023.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 3676
  • Unit Price: $7.48
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1+ $7.48 $7.48
10+ $7.164 $71.64
30+ $6.616 $198.48
100+ $6.139 $613.90
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ADA4077-2BRZ-R7 Tech Specifications
Analog Devices Inc. - ADA4077-2BRZ-R7 technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - ADA4077-2BRZ-R7

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply Span (Min) 5 V
Voltage - Supply Span (Max) 30 V
Voltage - Input Offset 10 µV
Supplier Device Package 8-SOIC
Slew Rate 1.2V/µs
Series -
Package / Case 8-SOIC (0.154", 3.90mm Width)
Package Tape & Reel (TR)
Output Type -
Product Attribute Attribute Value
Operating Temperature -40°C ~ 125°C
Number of Circuits 2
Mounting Type Surface Mount
Gain Bandwidth Product 3.6 MHz
Current - Supply 400µA (x2 Channels)
Current - Output / Channel 10 mA
Current - Input Bias 400 pA
Base Product Number ADA4077
Amplifier Type General Purpose
-3db Bandwidth 5.5 MHz

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99

Parts Introduction

ADA4077-2BRZ-R7 Image
ADA4077-2BRZ-R7 (1)

Manufacturer Part Number

ADA4077-2BRZ-R7

Manufacturer

Analog Devices, Inc.

Introduction

Dual-channel general-purpose operational amplifier (op-amp)

Designed for a wide range of instrumentation and buffer applications

Product Features and Performance

High gain bandwidth product of 3.6 MHz

Low offset voltage of 10 μV

Low input bias current of 400 pA

High slew rate of 1.2 V/μs

Wide supply voltage range from 5 V to 30 V

Capable of driving up to 10 mA per channel

Product Advantages

Excellent DC and AC performance

Suitable for a variety of instrumentation and buffer applications

Wide operating temperature range of -40°C to 125°C

Small 8-SOIC package

Key Technical Parameters

Number of circuits: 2

Gain bandwidth product: 3.6 MHz

Supply voltage range: 5 V to 30 V

Supply current: 400 μA per channel

Slew rate: 1.2 V/μs

Input offset voltage: 10 μV

Input bias current: 400 pA

-3 dB bandwidth: 5.5 MHz

Quality and Safety Features

RoHS3 compliant

Surface mount package for reliable assembly

Compatibility

Compatible with a wide range of electronic systems and circuits

Application Areas

Instrumentation and buffer amplifiers

Data acquisition systems

Industrial control and automation

Medical equipment

Test and measurement equipment

Product Lifecycle

Currently available

No indication of near discontinuation

Replacement or upgrade options may be available from Analog Devices

Several Key Reasons to Choose This Product

Excellent DC and AC performance, suitable for a variety of applications

Wide operating temperature range and RoHS3 compliance for reliable operation

Small 8-SOIC package for compact designs

Dual-channel design provides flexibility and resource optimization

Well-established manufacturer, Analog Devices, with a reputation for quality and reliability

Frequently Asked Questions(FAQ)

How does the ADA4077-2BRZ-R7 compare to other dual-channel general-purpose op-amps in terms of input bias current and offset voltage for precision sensor interface applications?
The ADA4077-2BRZ-R7 offers 400 pA of input bias current and 10 µV of input offset voltage, which are competitive values suitable for moderate-precision applications. When compared to lower-noise or ultra-low-offset alternatives such as the ADA4528-2, the ADA4077-2BRZ-R7 trades some precision for higher bandwidth and faster slew rate. For high-impedance sensor interfaces where bias current-induced voltage drops must be minimized, the 400 pA level is acceptable but may require guarding or buffer staging in sensitive designs. The 10 µV offset is sufficient for many industrial control loops but may necessitate external nulling or calibration in ultra-high-accuracy systems.
What supply voltage range should be considered when integrating the ADA4077-2BRZ-R7 into a single-supply battery-powered device operating from a 5V source?
The ADA4077-2BRZ-R7 supports a supply span from 5 V to 30 V, making it well-suited for 5V single-supply operation. However, designers must ensure that the input common-mode range includes ground or near-ground signals, as the datasheet specifies rail-to-rail performance only under certain conditions. With a 5V supply, the output swing will typically reach within 150 mV of each rail, assuming typical load and temperature conditions. This allows use in low-voltage signal conditioning without requiring negative rails.
Can the ADA4077-2BRZ-R7 reliably drive capacitive loads above 100 nF without stability issues, and what layout considerations are critical?
While the ADA4077-2BRZ-R7 can tolerate moderate capacitive loading, driving loads significantly above 100 nF—especially in unity-gain configurations—may lead to instability due to limited phase margin. The internal compensation is optimized for small capacitive loads; larger capacitances introduce additional pole-zero interactions that can cause ringing or oscillation. To maintain stability, series output resistors (typically 10–100 Ω) are recommended when driving long cables or high-capacitance inputs. Additionally, minimizing trace inductance and ensuring a solid ground plane around the IC help preserve phase margin in high-frequency feedback paths.
How does the gain bandwidth product of 3.6 MHz impact closed-loop performance at high gains, and what trade-offs exist between speed and accuracy?
At a gain bandwidth product of 3.6 MHz, the ADA4077-2BRZ-R7 maintains useful bandwidth even with modest closed-loop gains. For example, at a gain of 100, the theoretical bandwidth is approximately 36 kHz. This makes it suitable for audio and sensor signal conditioning but limits use in wideband RF applications. The trade-off involves balancing gain against frequency response: higher gains reduce available bandwidth, while maintaining wide bandwidth often requires lower gain settings. Designers must account for this when selecting feedback networks, especially in active filter topologies where multiple poles and zeros interact across the amplifier’s dynamic range.
What is the maximum output current capability per channel, and how does thermal derating affect performance in compact PCB layouts?
Each channel of the ADA4077-2BRZ-R7 can source or sink up to 10 mA continuously. However, continuous operation near this limit increases die temperature, which affects long-term reliability and may trigger internal thermal shutdown mechanisms in extreme cases. In densely populated PCBs with limited airflow, the actual usable output current should be derated—typically to 7–8 mA per channel—to prevent localized heating. Adequate copper pour on the power and ground planes, along with thermal vias if possible, helps dissipate heat. The junction-to-ambient thermal resistance must be evaluated using the package’s θJA specification under real-world mounting conditions.
Is the ADA4077-2BRZ-R7 suitable for use in medical monitoring equipment requiring low noise and stable DC performance over time?
The ADA4077-2BRZ-R7 provides 10 µV of input offset voltage and low drift, making it adequate for many medical signal conditioning tasks such as ECG front-end amplification. However, its noise density is not specified as exceptionally low compared to precision instrumentation amplifiers like the AD8429. In applications demanding sub-µV precision or microvolt-level resolution over time, additional filtering, shielding, and calibration routines may be required. The 400 pA input bias current is manageable in buffered configurations but could introduce errors in high-impedance bridge circuits. Thus, while feasible, system-level design must account for these limitations through careful architecture rather than relying solely on the op-amp’s intrinsic characteristics.
How does the slew rate of 1.2 V/µs influence transient response in PWM-to-analog conversion circuits?
A slew rate of 1.2 V/µs means the ADA4077-2BRZ-R7 can respond to fast voltage changes up to approximately 1.2 volts per microsecond. In PWM reconstruction filters, this limits the rise time of the reconstructed analog signal based on the maximum expected voltage step. For instance, a 5V step would take about 4.2 µs to complete—potentially introducing noticeable ripple in low-pass filtered outputs if the cutoff frequency is too high. Therefore, when designing post-amplifier stages for PWM decoding, the op-amp’s slew limitation sets an upper bound on achievable bandwidth relative to peak output swings, necessitating trade-offs between settling speed and fidelity.
What precautions should be taken when cascading two ADA4077-2BRZ-R7 devices in a multi-stage amplifier to avoid interaction between channels or supply domains?
When using multiple ADA4077-2BRZ-R7 units in cascade, care must be taken to isolate power supplies if sharing them introduces coupling paths. Although each device draws only 400 µA per channel, simultaneous switching of both channels could create transient currents that couple through shared traces. Decoupling capacitors (e.g., 100 nF ceramic + 10 µF tantalum) should be placed close to each V+ pin. Additionally, input protection diodes and proper grounding prevent latch-up during fault conditions. Since the base product ADA4077 has matched internal characteristics, inter-channel crosstalk is minimal, but physical separation and layout symmetry reduce electromagnetic interference in sensitive analog chains.
Can the ADA4077-2BRZ-R7 operate reliably in automotive environments with wide temperature excursions, and what packaging-related risks exist?
Yes, the ADA4077-2BRZ-R7 is rated for operation from -40°C to 125°C, meeting typical automotive grade requirements. The 8-SOIC package uses standard lead-free soldering compatible with reflow processes used in automotive assembly. Its Moisture Sensitivity Level (MSL) of 1 indicates unlimited shelf life under storage conditions, reducing risk of moisture-induced defects during production. However, repeated thermal cycling can stress solder joints at the package leads; thus, mechanical strain relief and robust PCB land design are advised. The RoHS3 compliance also ensures adherence to modern environmental regulations for global deployment.
How does the 5.5 MHz bandwidth relate to practical application performance, and why might measured results differ from datasheet specifications?
The -3dB bandwidth of 5.5 MHz applies under specific test conditions (e.g., unity gain, room temperature, resistive loads). In real-world applications, parasitic capacitance, board layout parasitics, and feedback network components can reduce effective bandwidth. For instance, adding a capacitor in parallel with feedback resistors creates a low-pass effect that rolls off response before reaching 5.5 MHz. Additionally, output loading and PCB trace inductance further attenuate high frequencies. Therefore, actual performance often falls short of datasheet claims unless careful layout and component selection are implemented. Measurement techniques must account for probe loading and signal integrity to validate published values accurately.
Should external compensation be used with the ADA4077-2BRZ-R7 in high-speed data acquisition systems, and under what circumstances?
The ADA4077-2BRZ-R7 is internally compensated for stable operation up to a certain gain-bandwidth product. External compensation is generally unnecessary and not recommended unless modifying the amplifier’s dynamic behavior intentionally—such as shaping frequency response in active filters. Introducing external capacitors or resistors alters the open-loop response unpredictably and risks instability. Instead, rely on the built-in compensation while verifying phase margin through simulation or empirical testing. Only in exotic configurations involving multiple feedback paths or distributed gain stages might external tuning provide marginal benefits, but such cases require rigorous validation beyond standard usage.
What role does the base product number ADA4077 play in inventory management and cross-referencing alternative suppliers?
The base product number ADA4077 identifies the core IC family, enabling engineers to identify functionally equivalent parts across different packages or manufacturers. When sourcing the ADA4077-2BRZ-R7, referencing this base number aids in evaluating drop-in replacements during supply chain disruptions. However, exact parametric equivalence cannot be assumed—different vendors may implement similar architectures with variations in noise, offset, or stability margins. Always consult full datasheets and perform qualification testing before substituting. Analog Devices’ documentation often references compatibility matrices, but independent verification remains essential for safety-critical applications.
How does the supply current of 400 µA per channel affect power consumption in always-on IoT sensor nodes powered by coin cells?
With 400 µA per channel, the ADA4077-2BRZ-R7 consumes 800 µA total in dual-channel mode—relatively high for ultra-low-power IoT endpoints. In battery-operated systems, this current draw accelerates depletion, potentially limiting operational lifetime to days or weeks depending on capacity. Alternatives like the LTC6241HV consume less than 100 µA and offer better efficiency for such roles. If the ADA4077-2BRZ-R7 is selected despite higher quiescent current, strategies like power gating or sleep modes become critical. Even then, leakage and standby currents must be carefully modeled in energy budget calculations to avoid unexpected shutdowns.
What impact does the surface-mount packaging (8-SOIC) have on thermal performance and mechanical robustness in vibration-prone industrial settings?
The 8-SOIC (3.90mm width) package offers compact form factor but limited thermal dissipation compared to larger packages like SOIC-14 or QFN. Thermal performance depends heavily on PCB copper area and airflow; without sufficient heatsinking, junction temperatures may exceed safe limits during sustained output loading. Mechanically, the gull-wing leads provide decent solder joint strength but are vulnerable to cracking under cyclic stress. In high-vibration environments, conformal coating and strain-relief routing help mitigate failure risk. Mounting orientation and board flexure should also be considered to prevent lead fatigue over time.
How does the gain bandwidth product compare to slew rate in determining maximum usable frequency for sinusoidal signals?
For large-signal sinusoidal responses, the slew rate governs the highest frequency at which the amplifier can track peaks without distortion. Using the relationship f_max = Slew Rate / (2πVp), a 1V peak output would saturate at ~190 kHz with a 1.2 V/µs slew rate. Meanwhile, the 3.6 MHz gain bandwidth product determines small-signal bandwidth at a given gain. Thus, for high-fidelity reproduction of complex waveforms, the lower of the two constraints dominates. In practice, the ADA4077-2BRZ-R7 is often limited by slew in moderate-output-amplitude, high-frequency scenarios despite its respectable GBW.
Are there any known limitations regarding input common-mode range near supply rails that affect signal integrity in single-supply designs?
The ADA4077-2BRZ-R7 supports input voltages very close to the supply rails—down to within a few hundred millivolts—but performance degrades near extremes due to internal transistor saturation effects. Near the negative rail (e.g., 0.3V above ground with a 5V supply), input impedance drops and offset voltage may increase slightly. Similarly, approaching the positive rail reduces headroom for large signals. To maintain linearity and noise performance, signal levels should stay at least 0.5V away from each rail unless the datasheet explicitly guarantees otherwise. This requires careful biasing and level-shifting in single-supply topologies.
What steps should be taken to minimize input offset voltage drift in temperature-sensitive applications spanning the full operating range?
The ADA4077-2BRZ-R7 exhibits low initial offset (10 µV), but drift over temperature must be considered. While not explicitly detailed in the summary parameters, typical drift for similar devices is around 0.05 µV/°C. Over 100°C range, this contributes ~5 µV variation—acceptable for many industrial controls but problematic in precision systems. Minimizing drift involves using chopper-stabilized alternatives if available, or implementing calibration routines during manufacturing. Alternatively, choose input ranges where offset errors are less significant relative to signal amplitude. Layout symmetry and matched resistor networks in differential stages also reduce mismatch-induced drift contributions.
Why might the ADA4077-2BRZ-R7 be preferred over single-channel versions despite higher cost in space-constrained designs requiring dual functionality?
The ADA4077-2BRZ-R7 integrates two identical general-purpose amplifiers in one package, saving board space and simplifying routing compared to using two separate single-op-amp devices. In compact designs like motor drivers or sensor multiplexers, this consolidation reduces footprint by nearly half and cuts parasitic inductance through shared power/ground paths. Though marginally more expensive per function, the integration benefits often outweigh cost differences in volume production. Additionally, matched channel characteristics improve balance in differential or balanced signal paths, enhancing CMRR and symmetry in multi-stage analog front-ends.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. ADA4077-2BRZ-R7

Product Attribute ADA4077-2BRZ-RL ADA4077-2ARMZ-R7 ADA4077-2TRMZ-EPR7 ADA4077-1BRZ-R7
Part Number ADA4077-2BRZ-RL ADA4077-2ARMZ-R7 ADA4077-2TRMZ-EPR7 ADA4077-1BRZ-R7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Current - Supply - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Voltage - Supply Span (Min) - - - -
Current - Output / Channel - - - -
Slew Rate - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Amplifier Type - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Voltage - Input Offset - - - -
Voltage - Supply Span (Max) - - - -
Current - Input Bias - - - -
Number of Circuits - - - -
-3db Bandwidth - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Gain Bandwidth Product - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

ADA4077-2BRZ-R7 Datasheet PDF

Download ADA4077-2BRZ-R7 pdf datasheets and Analog Devices Inc. documentation for ADA4077-2BRZ-R7 - Analog Devices Inc..

Other Related Documents
A Large Current Source with High Accuracy, Fast Se.pdf Tape and Reel Packaging.pdf
PCN Design/Specification
ADA4077-2 01/Feb/2021.pdf Data Sheet Chg 05/Jan/2016.pdf
PCN Assembly/Origin
Mult Dev 04/Apr/2023.pdf

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    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

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    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
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  • Bran***Lewis
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  • Oliv***arris
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    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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ADA4077-2BRZ-R7 Image

ADA4077-2BRZ-R7

Analog Devices Inc.
32D-ADA4077-2BRZ-R7

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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