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Analog Devices Inc. ADA4077-1BRZ
- Part No.:
- ADA4077-1BRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADA4077-1BRZ.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,301
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Product details
Overview
ADA4077-1BRZ from Analog Devices is a single-channel, high-precision operational amplifier optimized for low-offset, low-drift, low-noise signal conditioning in demanding 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, 3.9 MHz gain bandwidth, and operates from ±2.5 V to ±15 V supplies. It is used in RTD front-ends, optical network control circuits, and precision sensor interfaces where long-term stability and MSL1 reflow compatibility are critical.
For engineers reviewing the ADA4077-1BRZ datasheet, ADA4077-1BRZ pinout, ADA4077-1BRZ application, or ADA4077-1BRZ equivalent, this page provides verified specifications, SOIC-8 package details, real-world design meaning of key parameters, and two validated alternative options for precision op amp selection in extended temperature (−40°C to +125°C) applications.
Technical Context
The ADA4077-1BRZ employs a proprietary bipolar process enabling ultra-low input bias current (1 nA max) with minimal temperature dependence-unlike JFET amplifiers-and eliminates phase reversal even when inputs exceed supply rails. Its architecture supports unity-gain stability and drives >1000 pF capacitive loads without external compensation.
It belongs to the sixth-generation evolution of the OP07 family, delivering fourfold lower power (400 µA per amplifier) and sixfold higher bandwidth/slew rate versus OP177, while maintaining superior CMRR (>120 dB), PSRR (>120 dB), and AV (>120 dB) across −40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 25 µV maximum at 25°C (B grade, SOIC); ensures <±50 µV total error over full −40°C to +125°C range in precision DC measurements. |
| Offset Drift | 0.25 µV/°C maximum (B grade); contributes <±20 µV error across 85°C ambient swing-critical for uncalibrated thermal systems. |
| Input Bias Current | 1 nA maximum at 25°C; enables high-impedance sensor interfacing (e.g., RTDs, piezoelectric sensors) without significant voltage drop or leakage-induced offset. |
| Voltage Noise Density | 6.9 nV/√Hz typical at 1 kHz; supports low-noise amplification of microvolt-level signals in instrumentation-grade filters and ADC drivers. |
| Gain Bandwidth Product | 3.9 MHz at ±5 V; allows stable closed-loop operation up to ~5.9 MHz at unity gain-sufficient for fast-settling precision data acquisition stages. |
| Supply Range | ±2.5 V to ±15 V dual supply; supports both low-voltage portable instrumentation and high-dynamic-range industrial line-powered systems. |
| Operating Temperature | −40°C to +125°C; qualified for under-hood automotive, process control, and downhole sensing where thermal robustness is non-negotiable. |
Pinout & Package
ADA4077-1BRZ is housed in an 8-lead SOIC (R-8) package with MSL1 reflow rating, compatible with standard surface-mount assembly processes. Thermal resistance θJA = 158°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | Not internally connected-no routing or grounding required; avoids parasitic coupling in high-PSRR layouts. |
| 2 | −IN | Inverting input; referenced to high-impedance node in transimpedance or differential configurations. |
| 3 | +IN | Noninverting input; primary signal entry point for unity-gain buffers and precision follower applications. |
| 4 | V− | Negative supply rail; must be bypassed with ≥0.1 µF ceramic capacitor placed ≤2 mm from pin to minimize PSRR degradation. |
| 6 | OUT | Amplifier output; capable of ±10 mA drive into 2 kΩ load with <±3.2 V swing at ±5 V supply-supports direct interface to SAR ADC references. |
| 7 | V+ | Positive supply rail; shares same bypassing requirement as V−; asymmetrical supply operation (e.g., +5 V/−2.5 V) is supported per spec. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Immune to polarity inversion even when inputs exceed ±VS; eliminates risk of latch-up or system lockup in overvoltage fault conditions. |
| MSL1 reflow rating | Rated for 260°C peak reflow per IPC/JEDEC J-STD-020; ensures reliability in high-density PCBs with tight thermal budgets. |
| Long-term offset drift | 0.5 µV typical 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 ↔ 25°C cycling; guarantees repeatable zero-point accuracy in thermally cycled environments. |
| Capacitive load drive | Stable with >1000 pF output capacitance; enables direct connection to long cables or ADC input filters without isolation resistors. |
Applications
| RTD Front-End Amplifier | Optical Network Control Circuit |
|---|---|
|
Use Scenario: Amplifying low-level resistance changes from Pt100/1000 RTDs in industrial temperature transmitters. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core with low self-heating (<0.1 mW dissipation) and sub-0.5°C accuracy post-calibration. Use Value: Enables 2-wire RTD measurement without 3rd/4th wire compensation, reducing BOM cost and board space while maintaining ±0.5°C accuracy over −40°C to +125°C. |
Use Scenario: Bias control and feedback conditioning for laser diode drivers in fiber-optic transceivers. IC Role / Device Role / Timing Role: Low-drift, low-noise transimpedance amplifier converting photodiode current to stable voltage reference. Use Value: Maintains <±50 µV offset shift across temperature cycling, ensuring consistent optical power setpoint accuracy in DWDM modules. |
| Precision Sensor Signal Conditioning | High-Stability Precision Filter |
|
Use Scenario: Signal conditioning for strain gages, thermocouples, and piezoresistive pressure sensors in test benches and aerospace avionics. IC Role / Device Role / Timing Role: First-stage DC-coupled amplifier with ultra-low IB (1 nA max) and high CMRR (>120 dB) rejecting common-mode EMI. Use Value: Eliminates need for guard traces or active guarding in high-Z sensor paths, simplifying layout and improving long-term repeatability. |
Use Scenario: Active filter stage in calibrated signal generators and metrology-grade waveform synthesizers. IC Role / Device Role / Timing Role: Unity-gain stable, low-distortion (0.004% THD+N) amplifier in Sallen-Key or multiple-feedback topologies. Use Value: Delivers flat group delay and <1 µV p-p 0.1–10 Hz noise-essential for generating certified low-frequency calibration tones. |
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 |
|---|---|---|---|
| AD8677ARZ | Same B-grade offset (25 µV max), but higher 10 nV/√Hz noise and no MSL1 rating; θJA = 180°C/W vs. 158°C/W. | Limited to commercial temp range (−40°C to +125°C not guaranteed); less suitable for automotive under-hood use. | Choose AD8677ARZ only if noise floor is secondary to cost and MSL1 is unnecessary. |
| OP1177ARZ | Higher 60 µV max offset (A grade), 0.6 µV/°C drift, and 7.9 nV/√Hz noise; consumes 1.2 mA per amplifier vs. 0.4 mA. | Lower bandwidth (1.3 MHz) limits settling speed in multi-channel DAQ systems requiring <5 µs 0.1% settling. | Select OP1177ARZ only when legacy footprint compatibility outweighs power, noise, and drift requirements. |
Compared with AD8677ARZ and OP1177ARZ, the ADA4077-1BRZ offers the lowest combined offset, drift, and noise in an MSL1-qualified SOIC-8 package-making it the preferred choice for new designs requiring long-term stability, thermal resilience, and low-power precision amplification.
Availability
ADA4077-1BRZ is available at Aetrix Electronics and suitable for RTD front-end amplifiers, optical network control circuits, and precision sensor signal conditioning requiring stable component supply across extended temperature ranges and high-reliability manufacturing environments.
Supply support for ADA4077-1BRZ 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 since 1965.
The ADA4077 family was designed as the sixth-generation successor to the OP07, targeting ultra-stable, low-power, MSL1-compliant precision amplification in compact SOIC/MSOP/TSSOP packages for harsh-environment instrumentation.
FAQ
What is the maximum offset voltage specification for ADA4077-1BRZ at 25°C?
The ADA4077-1BRZ is a B-grade device with a maximum offset voltage of 25 µV at 25°C, as specified in Table 2 of the Rev. F datasheet. This value increases to 65 µV over the full −40°C to +125°C operating range, reflecting its guaranteed performance envelope for high-accuracy DC applications.
Does ADA4077-1BRZ support dual-supply operation below ±5 V?
Yes, ADA4077-1BRZ is fully specified for dual-supply operation from ±2.5 V to ±15 V. Electrical characteristics-including offset voltage, CMRR, and output swing-are validated at ±2.5 V, enabling low-voltage portable instrumentation without performance compromise.
Is ADA4077-1BRZ pin-compatible with other devices in the ADA4077 family?
No-ADA4077-1BRZ (single, SOIC-8) has a unique pinout distinct from ADA4077-2 (dual, SOIC-8/MSOP-8) and ADA4077-4 (quad, SOIC-14/TSSOP-14). Pin 1, 5, and 8 are NIC in ADA4077-1BRZ but carry active signals in multi-channel variants; direct substitution requires PCB redesign.
What does the 'BRZ' suffix indicate in ADA4077-1BRZ?
The 'BRZ' suffix denotes the 8-lead SOIC (R-8) package, B-grade performance (25 µV max VOS at 25°C), and tape-and-reel packaging. It differentiates this variant from ARMZ (MSOP-8), ARZ (SOIC-8 A-grade), and RUZ (TSSOP-14) versions within the ADA4077-1 family.
Can ADA4077-1BRZ drive capacitive loads without external compensation?
Yes, ADA4077-1BRZ is stable driving capacitive loads exceeding 1000 pF with no external compensation required. This capability is confirmed in the General Description and Typical Performance Characteristics (Figures 40–45), enabling direct interface to ADC input capacitors and long coaxial cables.
ADA4077-1BRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1.2V/µs
- Gain Bandwidth Product:
- 3.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 400 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 400µA
- Current - Output / Channel:
- 22 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
ADA4077-1BRZ FAQ
1.How can I place an order for ADA4077-1BRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4077-1BRZ 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 ADA4077-1BRZ reliable?
The price and inventory of ADA4077-1BRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4077-1BRZ is usually 5 days.
3.What payment methods are accepted for ADA4077-1BRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4077-1BRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4077-1BRZ?
ADA4077-1BRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4077-1BRZ 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 ADA4077-1BRZ?
For technical support, including ADA4077-1BRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4077-1BRZ requirements.
6.How does Aetrix verify that ADA4077-1BRZ is sourced from the original manufacturer or authorized distributors?
All ADA4077-1BRZ 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 ADA4077-1BRZ meets industry standards.
7.What is the process for return or replacement of ADA4077-1BRZ?
All ADA4077-1BRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4077-1BRZ, 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 ADA4077-1BRZ part is unused and in its original packaging.
Return procedure for ADA4077-1BRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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