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Analog Devices Inc. ADA4077-2BRZ-R7
- Part No.:
- ADA4077-2BRZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4077-2BRZ-R7.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,374
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Product details
Overview
ADA4077-2BRZ-R7 from Analog Devices is a dual-channel, high-precision operational amplifier in 8-lead SOIC package, featuring 25 µV max offset voltage (B grade), 0.25 µV/°C max drift, 6.9 nV/√Hz voltage noise density at 1 kHz, 3.9 MHz gain bandwidth, and operation from ±2.5 V to ±15 V. It serves as a front-end signal conditioner for RTD and thermocouple sensors in industrial process control systems.
For engineers reviewing the ADA4077-2BRZ-R7 datasheet, ADA4077-2BRZ-R7 pinout, ADA4077-2BRZ-R7 application, or ADA4077-2BRZ-R7 equivalent, key selection criteria include guaranteed low offset and drift over −40°C to +125°C, MSL1 reflow rating, no phase reversal behavior, and stable performance with >1000 pF capacitive loads without external compensation.
Technical Context
The ADA4077-2BRZ-R7 implements a sixth-generation precision op amp architecture evolved from the OP07 family, optimized for ultra-low DC errors and thermal stability. Its input stage delivers 1 nA max input bias current with minimal temperature dependence, while the output stage supports rail-to-rail swing within 1.2 V of supplies at ±15 V and remains stable into heavy capacitive loads.
This device uses Analog Devices' proprietary linear process to achieve simultaneous low noise (6.9 nV/√Hz), high CMRR/PSRR (>120 dB), and unity-gain stability - enabling precision DC-coupled amplification in line-powered and portable instrumentation where long-term calibration integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 25 µV max at 25°C (B grade); ensures ≤65 µV error across −40°C to +125°C for high-accuracy sensor front-ends. |
| Offset Drift | 0.25 µV/°C max; limits thermal-induced error to <3 µV over 10°C ambient shift - critical for uncalibrated field deployments. |
| Gain Bandwidth | 3.9 MHz; supports stable closed-loop gain ≥100 up to ~39 kHz, suitable for anti-aliasing and precision filter stages. |
| Voltage Noise | 6.9 nV/√Hz at 1 kHz; enables sub-µV resolution in low-frequency sensor interfaces without excessive filtering overhead. |
| Supply Current | 400 µA per amplifier typical; allows dual-channel precision amplification in battery-operated devices with <1 mW total quiescent power. |
| CMRR / PSRR | >120 dB minimum; rejects common-mode interference and supply ripple in noisy industrial environments (e.g., PLC I/O modules). |
| Operating Temp | −40°C to +125°C; qualified for under-hood automotive, turbine monitoring, and factory-floor control systems. |
Pinout & Package
ADA4077-2BRZ-R7 is housed in an 8-lead SOIC (R-8) package with standard JEDEC MS-012AC footprint (5.0 mm × 6.2 mm, 1.27 mm pitch), MSL1 rated for lead-free reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output; capable of ±10 mA drive into 2 kΩ load with <1.2 V dropout at ±15 V supply. |
| 2 | −IN A | Inverting input for Channel A; protected by internal clamp diodes to rails, supports ±VSY common-mode range. |
| 3 | +IN A | Noninverting input for Channel A; 70 GΩ input resistance enables high-Z sensor interfacing (e.g., pH electrodes). |
| 4 | V− | Negative supply rail; must be decoupled with 0.1 µF ceramic capacitor placed ≤2 mm from pin. |
| 5 | +IN B | Noninverting input for Channel B; electrically isolated from Channel A with −125 dB channel separation at 1 kHz. |
| 6 | −IN B | Inverting input for Channel B; matched to Channel A for differential pair configurations (e.g., instrumentation amps). |
| 7 | OUT B | Amplifier B output; identical AC/DC specs to OUT A; supports independent feedback networks per channel. |
| 8 | V+ | Positive supply rail; shares same PSRR (123 dB min) and thermal coefficient behavior as V−. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Immune to polarity inversion even when inputs exceed supply rails - eliminates latch-up risk in overvoltage transients. |
| MSL1 reflow rating | Qualified for 260°C peak reflow per IPC/JEDEC J-STD-020 - ensures reliability in high-density, miniaturized PCB assemblies. |
| Long-term drift | 0.5 µV typical over 10,000 hours - reduces recalibration frequency in metrology-grade equipment. |
| Temperature hysteresis | 1 µV typical after full −40°C ↔ +125°C cycling - maintains repeatability in thermal-cycling test fixtures. |
| Capacitive load drive | Stable with >1000 pF output capacitance - eliminates need for isolation resistors in ADC driver or cable-driven applications. |
Applications
| Process Control Front-End | Optical Network Control |
|---|---|
Use Scenario: Amplifying low-level signals from 4–20 mA loop-powered transmitters in chemical plant analyzers. IC Role / Device Role / Timing Role: Dual-channel precision instrumentation amplifier stage providing gain, offset trimming, and noise rejection before ADC sampling. Use Value: 25 µV max offset and 0.25 µV/°C drift ensure <0.01% FS error over full industrial temperature range without active calibration. | Use Scenario: Bias control for laser diodes and photodiode transimpedance amplification in fiber-optic transceivers. IC Role / Device Role / Timing Role: Low-noise, low-drift transimpedance amplifier and reference buffer for analog front-end of optical power monitors. Use Value: 6.9 nV/√Hz noise density and >120 dB PSRR suppress supply-induced ripple on sensitive optical feedback paths. |
| Precision Sensor Conditioning | Precision Filters |
Use Scenario: Linearizing and amplifying outputs from platinum RTDs in HVAC and medical temperature probes. IC Role / Device Role / Timing Role: Low-power, low-drift difference amplifier in 3-wire RTD bridge circuits with 2.5 V excitation. Use Value: 400 µA per amplifier supply current limits self-heating to <0.1°C error; no phase reversal prevents output saturation during sensor disconnect events. | Use Scenario: Active low-pass and band-pass filtering in portable multimeters and handheld calibrators. IC Role / Device Role / Timing Role: Unity-gain stable, low-distortion op amp in 2nd-order Sallen-Key and multiple-feedback topologies. Use Value: 3.9 MHz GBP and 55° phase margin enable accurate 10 kHz filter response with <0.004% THD+N - preserving measurement fidelity. |
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-REEL7 | Higher 0.6 µV/°C max drift (vs. 0.25 µV/°C), 1.8 MHz GBP, no MSL1 rating. | Limited to ≤85°C ambient; unsuitable for extended industrial temp or high-reliability reflow processes. | Select only if cost sensitivity outweighs long-term drift and reflow compliance requirements. |
| AD8677ARZ-R7 | Same 25 µV/0.25 µV/°C spec but single-channel; 10 MHz GBP, higher 1.2 mA supply current. | Requires two units for dual-channel needs; increased power dissipation limits use in space-constrained portable designs. | Choose when higher bandwidth is mandatory and board area/power budget allow dual placement. |
Compared with OP2177ARZ-REEL7 and AD8677ARZ-R7, the ADA4077-2BRZ-R7 uniquely combines dual-channel integration, MSL1 reflow rating, and industry-leading drift performance in a single SOIC package - optimizing for compact, high-reliability industrial signal chains requiring minimal recalibration.
Availability
ADA4077-2BRZ-R7 is available at Aetrix Electronics and suitable for process control systems, optical network equipment, and precision sensor conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADA4077-2BRZ-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, serving industrial, automotive, communications, and healthcare markets.
The ADA4077 family represents Analog Devices' sixth-generation evolution of the OP07 precision op amp lineage, engineered specifically for applications demanding ultra-low drift, robust reflow compatibility, and guaranteed performance from −40°C to +125°C.
FAQ
What is the maximum operating temperature range for the ADA4077-2BRZ-R7?
The ADA4077-2BRZ-R7 is fully specified over −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 ADA4077-2BRZ-R7 suitable for under-hood automotive, turbine monitoring, and factory-floor control applications where ambient temperatures exceed standard commercial limits.
Does the ADA4077-2BRZ-R7 require external compensation for capacitive loads?
No, the ADA4077-2BRZ-R7 is internally compensated and remains stable with capacitive loads exceeding 1000 pF without any external components. This capability simplifies design in ADC driver, cable interface, and piezoelectric sensor applications where output capacitance is unavoidable - eliminating the need for series isolation resistors or complex compensation networks in the ADA4077-2BRZ-R7 layout.
What is the offset voltage specification for the ADA4077-2BRZ-R7 at room temperature?
The ADA4077-2BRZ-R7 is a B-grade device with a maximum offset voltage of 25 µV at 25°C, and a worst-case limit of 65 µV across the full −40°C to +125°C operating range. This tight initial tolerance, combined with its 0.25 µV/°C max drift, ensures predictable DC accuracy in high-precision instrumentation where system-level offset budgets are sub-100 µV.
Is the ADA4077-2BRZ-R7 compatible with lead-free reflow soldering processes?
Yes, the ADA4077-2BRZ-R7 carries an MSL1 moisture sensitivity level rating and is qualified for peak reflow temperatures up to 260°C per IPC/JEDEC J-STD-020. Its SOIC package is designed for compatibility with standard lead-free assembly processes, making ADA4077-2BRZ-R7 appropriate for high-density, miniaturized PCBs used in modern industrial and telecom equipment.
How does the ADA4077-2BRZ-R7 handle input overvoltage conditions?
The ADA4077-2BRZ-R7 features internal input clamp diodes to both supply rails, allowing it to withstand input voltages up to ±VSY without damage - provided input current is limited to ≤10 mA. Crucially, it exhibits no phase reversal even when inputs exceed the supply rails, preventing catastrophic output saturation or system lockup in transient overvoltage scenarios encountered in field-deployed ADA4077-2BRZ-R7 circuits.
ADA4077-2BRZ-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:
- -
- Slew Rate:
- 1.2V/µs
- Gain Bandwidth Product:
- 3.6 MHz
- -3db Bandwidth:
- 5.5 MHz
- Current - Input Bias:
- 400 pA
- Voltage - Input Offset:
- 10 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-SOIC
ADA4077-2BRZ-R7 FAQ
1.How can I place an order for ADA4077-2BRZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4077-2BRZ-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 ADA4077-2BRZ-R7 reliable?
The price and inventory of ADA4077-2BRZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4077-2BRZ-R7 is usually 5 days.
3.What payment methods are accepted for ADA4077-2BRZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4077-2BRZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4077-2BRZ-R7?
ADA4077-2BRZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4077-2BRZ-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 ADA4077-2BRZ-R7?
For technical support, including ADA4077-2BRZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4077-2BRZ-R7 requirements.
6.How does Aetrix verify that ADA4077-2BRZ-R7 is sourced from the original manufacturer or authorized distributors?
All ADA4077-2BRZ-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 ADA4077-2BRZ-R7 meets industry standards.
7.What is the process for return or replacement of ADA4077-2BRZ-R7?
All ADA4077-2BRZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADA4077-2BRZ-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 ADA4077-2BRZ-R7 part is unused and in its original packaging.
Return procedure for ADA4077-2BRZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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