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Analog Devices Inc. ADA4077-2ARMZ
- Part No.:
- ADA4077-2ARMZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADA4077-2ARMZ.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:323
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Product details
Overview
ADA4077-2ARMZ from Analog Devices is a dual-channel, high-precision operational amplifier optimized for low-offset, low-drift, low-noise signal conditioning in industrial and instrumentation systems. It delivers 25 µV max offset voltage (B grade), 0.25 µV/°C max drift, 6.9 nV/√Hz voltage noise density at 1 kHz, ±5 V to ±15 V dual-supply operation, and unity-gain stability - enabling accurate DC-coupled measurements in RTD front-ends and precision filters.
For engineers reviewing the ADA4077-2ARMZ datasheet, ADA4077-2ARMZ pinout, ADA4077-2ARMZ application, or ADA4077-2ARMZ equivalent, key selection criteria include guaranteed MSL1 reflow rating, −40°C to +125°C extended temperature operation, no phase reversal under overvoltage, and long-term offset stability (<0.5 µV typical drift over 10,000 hours).
Technical Context
The ADA4077-2ARMZ implements a sixth-generation precision op amp architecture evolved from the OP07 family, featuring proprietary bipolar process technology that achieves ultra-low input bias current (±1 nA max) with minimal temperature dependence - unlike JFET amplifiers. Its input stage avoids phase reversal even when inputs exceed supply rails, eliminating risk of system lockup in feedback configurations.
Designed for demanding sensor interfaces, it maintains CMRR, PSRR, and open-loop gain >120 dB across −40°C to +125°C, supports capacitive loads >1000 pF without external compensation, and achieves 3.9 MHz gain bandwidth with 1.2 V/µs slew rate - balancing precision, speed, and robustness in single-supply and split-supply topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage (B grade) | 25 µV max at 25°C - enables sub-0.01% accuracy in mV-level sensor outputs without trimming. |
| Offset Drift | 0.25 µV/°C max - limits thermal error to <3 µV over 100°C ambient swing, critical for uncooled industrial enclosures. |
| Voltage Noise Density | 6.9 nV/√Hz at 1 kHz - preserves SNR in 1–10 kHz bandwidth applications like optical network control loops. |
| Supply Current | 400 µA per amplifier typical - allows dual-channel precision amplification within 1 mA total budget for battery-powered handheld instruments. |
| Gain Bandwidth Product | 3.9 MHz - supports stable closed-loop gains up to 100× at 39 kHz, sufficient for anti-aliasing and active filter stages. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive sensors, motor drive current sensing, and factory-floor PLC modules. |
| MSL Rating | MSL1 - withstands 260°C reflow peak without degradation, compatible with high-density PCB assembly processes. |
Pinout & Package
ADA4077-2ARMZ is housed in an 8-lead MSOP (RM-8) package, 3 mm × 3 mm × 0.85 mm, with exposed pad for thermal enhancement. Pin pitch is 0.5 mm; body width is 3.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives low-impedance loads up to ±10 mA; stable with >1000 pF capacitance. |
| 2 | −IN A | Inverting input for Channel A - high common-mode rejection (122 dB min) enables accurate differential sensing. |
| 3 | +IN A | Noninverting input for Channel A - 70 GΩ input resistance minimizes loading on high-Z sources like piezoelectric sensors. |
| 4 | V− | Negative supply rail - accepts −2.5 V to −15 V; internal ESD clamps protect against ±10 mA transient currents. |
| 5 | +IN B | Noninverting input for Channel B - electrically isolated from Channel A; channel separation −125 dB at 1 kHz prevents crosstalk in dual-sensor systems. |
| 6 | −IN B | Inverting input for Channel B - matched to Channel A for common-mode rejection in instrumentation amplifier configurations. |
| 7 | OUT B | Amplifier B output - independent output stage; no interaction with OUT A under load or overload conditions. |
| 8 | V+ | Positive supply rail - accepts +2.5 V to +15 V; PSRR 123 dB ensures immunity to supply ripple in noisy industrial environments. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Immune to polarity inversion when inputs exceed supply rails - eliminates risk of latch-up in overvoltage protection circuits. |
| Long-term offset stability | 0.5 µV typical drift over 10,000 hours - reduces calibration frequency in field-deployed test equipment and medical analyzers. |
| Temperature hysteresis | 1 µV typical after full −40°C ↔ +125°C cycling - ensures repeatable zero-point accuracy across thermal cycles in environmental chambers. |
| Low input bias current | 1 nA maximum at 25°C - avoids significant voltage drop across >1 MΩ source impedances (e.g., pH electrodes, thermocouples). |
| High CMRR/PSRR | ≥120 dB minimum over full temperature range - rejects power-line interference and ground-bounce noise in mixed-signal PCBs. |
Applications
| Process Control Front-End | Optical Network Control |
|---|---|
Use Scenario: Amplifying low-level mV signals from 4–20 mA loop receivers and thermocouple transmitters in PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with rail-to-rail output swing and no phase reversal during transient overloads. Use Value: Enables direct interface to 16-bit ADCs without offset trimming; 0.25 µV/°C drift ensures <0.02% FS error over operating temperature range. | Use Scenario: Bias control and monitoring of laser diode drivers and photodiode transimpedance amplifiers in fiber-optic line cards. IC Role / Device Role / Timing Role: Low-noise, low-drift reference buffer and feedback amplifier in closed-loop optical power regulation circuits. Use Value: 6.9 nV/√Hz noise density preserves dynamic range in 1–10 MHz control bandwidths; MSL1 rating supports compact, high-reliability optical module assembly. |
| Precision Sensor Conditioning | Precision Active Filters |
Use Scenario: Signal conditioning for RTD bridges and strain gage Wheatstone networks in weigh scales and pressure transducers. IC Role / Device Role / Timing Role: Dual-channel instrumentation-grade amplifier providing matched gain paths and low thermal EMF error. Use Value: 1 µV hysteresis and <0.5 µV long-term drift ensure repeatability in metrology-grade measurement systems requiring annual calibration. | Use Scenario: Implementing 2nd-order Sallen-Key and multiple-feedback low-pass/high-pass filters in data acquisition anti-aliasing stages. IC Role / Device Role / Timing Role: Unity-gain stable, low-output-impedance (0.05 Ω) buffer driving filter capacitor networks. Use Value: 3.9 MHz GBW and 55° phase margin guarantee stable filter response without peaking; 400 µA supply current enables multi-stage filtering in portable devices. |
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 |
|---|---|---|---|
| OP2177ARZ | Higher offset drift (0.6 µV/°C max), lower GBW (1.3 MHz), no MSL1 rating - requires socket or conservative reflow profile. | Less suitable for high-density industrial PCBs with tight thermal budgets or extended temperature qualification requirements. | Choose OP2177ARZ only if legacy design reuse or cost sensitivity outweighs need for MSL1 and 3.9 MHz bandwidth. |
| AD8677ARMZ | Lower noise (4.8 nV/√Hz), same offset spec, but higher supply current (900 µA per amp) and no 125°C rating - limited to 85°C operation. | Not qualified for under-hood automotive or high-ambient industrial environments where ADA4077-2ARMZ's +125°C rating is essential. | Select AD8677ARMZ only when ultra-low noise dominates over power and temperature requirements. |
Compared with OP2177ARZ and AD8677ARMZ, ADA4077-2ARMZ uniquely combines MSL1 reflow compatibility, −40°C to +125°C operation, 3.9 MHz bandwidth, and <0.25 µV/°C drift - making it the preferred choice for next-generation industrial IoT nodes and high-reliability sensor fusion modules.
Availability
ADA4077-2ARMZ is available at Aetrix Electronics and suitable for process control front-end amplifiers, optical network control circuits, and precision sensor conditioning requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for ADA4077-2ARMZ 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, automotive, communications, and healthcare markets with precision signal chain solutions.
The ADA4077 family represents Analog Devices' sixth-generation evolution of the OP07 platform, engineered specifically for ultra-stable, low-power, high-temperature precision amplification in space-constrained industrial and instrumentation applications.
FAQ
What is the maximum operating temperature range for ADA4077-2ARMZ?
ADA4077-2ARMZ is fully specified from −40°C to +125°C, with all key parameters - including offset voltage, drift, CMRR, and PSRR - guaranteed across this extended industrial temperature range. This makes ADA4077-2ARMZ suitable for under-hood automotive sensors, motor drive current sensing, and factory-floor programmable logic controllers where ambient temperatures exceed 85°C.
Does ADA4077-2ARMZ support single-supply operation?
ADA4077-2ARMZ is optimized for dual-supply operation (±2.5 V to ±15 V) but can operate from a single 5 V to 30 V supply with appropriate input/output voltage headroom. Its input common-mode range extends to within 1.2 V of each rail, and output swings to within 1.5 V of each rail at ±5 V - enabling single-supply use in rail-to-rail input/output configurations when referenced properly.
Is ADA4077-2ARMZ pin-compatible with other dual op amps in MSOP-8 packages?
ADA4077-2ARMZ uses a standard 8-lead MSOP (RM-8) footprint with industry-standard pinout: OUT A, −IN A, +IN A, V−, +IN B, −IN B, OUT B, V+. While physically compatible with many dual op amps in RM-8, functional pin mapping differs from legacy parts like OP2177 - especially in supply pin placement and channel ordering - so PCB layout must be verified against ADA4077-2ARMZ's specific pin function table before substitution.
What is the long-term stability performance of ADA4077-2ARMZ?
ADA4077-2ARMZ exhibits exceptional long-term stability: typical offset voltage drift is 0.5 µV over 10,000 hours (more than 13 months) under continuous operation at 125°C, measured on soldered FR4 PCBs using JEDEC-compliant reflow. This translates to <2% of its 25 µV max room-temperature offset specification - significantly improving calibration intervals in test and measurement equipment.
How does ADA4077-2ARMZ handle input overvoltage conditions?
ADA4077-2ARMZ features internal input clamp diodes to both supply rails and is immune to phase reversal - even when input voltages exceed the positive or negative supply by up to 0.3 V. This eliminates risk of system lockup or damage in transient-overvoltage scenarios such as sensor disconnect events or ESD coupling into signal lines, a critical advantage over older precision op amps like OP2177.
ADA4077-2ARMZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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:
- 50 µV
- Current - Supply:
- 400µA (x2 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:
- 8-MSOP
ADA4077-2ARMZ FAQ
1.How can I place an order for ADA4077-2ARMZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4077-2ARMZ 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 ADA4077-2ARMZ reliable?
The price and inventory of ADA4077-2ARMZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4077-2ARMZ is usually 5 days.
3.What payment methods are accepted for ADA4077-2ARMZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4077-2ARMZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4077-2ARMZ?
ADA4077-2ARMZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4077-2ARMZ 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 ADA4077-2ARMZ?
For technical support, including ADA4077-2ARMZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4077-2ARMZ requirements.
6.How does Aetrix verify that ADA4077-2ARMZ is sourced from the original manufacturer or authorized distributors?
All ADA4077-2ARMZ 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 ADA4077-2ARMZ meets industry standards.
7.What is the process for return or replacement of ADA4077-2ARMZ?
All ADA4077-2ARMZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4077-2ARMZ, 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 ADA4077-2ARMZ part is unused and in its original packaging.
Return procedure for ADA4077-2ARMZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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