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Analog Devices Inc. ADA4077-1ARMZ
- Part No.:
- ADA4077-1ARMZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADA4077-1ARMZ.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:400
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Product details
Overview
ADA4077-1ARMZ 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, ±5 V to ±15 V dual-supply operation, and MSL1 reflow rating - enabling use in optical network control circuits and RTD front-end amplifiers.
For engineers reviewing the ADA4077-1ARMZ datasheet, ADA4077-1ARMZ pinout, ADA4077-1ARMZ application, or ADA4077-1ARMZ equivalent, key selection criteria include guaranteed offset and drift performance over −40°C to +125°C, immunity to phase reversal, unity-gain stability with >1000 pF capacitive loads, and compatibility with precision sensor interfaces requiring <0.5 µV long-term drift (10,000 hrs).
Technical Context
The ADA4077-1ARMZ employs proprietary bipolar precision process technology to achieve ultra-low input bias current (1 nA max) while maintaining exceptional CMRR (>120 dB), PSRR (>120 dB), and open-loop gain (>120 dB). Its architecture eliminates phase reversal under overvoltage conditions and supports stable operation with heavy capacitive loads without external compensation.
This sixth-generation evolution of the OP07 family integrates advanced thermal design for minimal temperature hysteresis (1 µV typical) and long-term drift (0.5 µV typical over 10,000 hours), making it suitable for calibration-critical applications where warm-up drift and aging effects must be suppressed below measurement thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 25 µV maximum at 25°C (B grade, 8-lead MSOP) - ensures sub-LSB error in 16-bit+ data acquisition systems |
| Offset Drift | 0.25 µV/°C maximum - limits temperature-induced error to <0.3 µV across 0–70°C ambient range |
| Voltage Noise Density | 6.9 nV/√Hz at 1 kHz - enables resolution of microvolt-level signals in low-frequency sensor interfaces |
| Gain Bandwidth Product | 3.9 MHz - supports stable closed-loop operation up to ~5.9 MHz bandwidth at unity gain |
| Supply Current | 400 µA per amplifier typical - allows battery-powered precision instrumentation with multi-year runtime |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial PLC, and downhole sensing environments |
| MSL Rating | MSL1 - compatible with lead-free reflow profiles up to 260°C, eliminating moisture sensitivity concerns |
Pinout & Package
ADA4077-1ARMZ is housed in an 8-lead MSOP (RM-8) package with exposed pad for thermal enhancement. The package measures 3.0 mm × 3.0 mm × 0.85 mm and features gull-wing leads compatible with standard SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | NIC | Not internally connected - must remain unconnected or grounded only if required by PCB layout for symmetry |
| 2 | −IN | Inverting input - high-impedance node sensitive to leakage; requires guard ring in high-Z applications |
| 3 | +IN | Noninverting input - matched to −IN for optimal CMRR; avoid routing near noisy traces |
| 4 | V− | Negative supply rail - bypass with 0.1 µF ceramic capacitor placed ≤2 mm from pin |
| 6 | OUT | Amplifier output - capable of ±10 mA drive into 2 kΩ load; stable with ≥1000 pF capacitive loads |
| 7 | V+ | Positive supply rail - bypass identically to V−; shared supply with other channels increases PSRR coupling risk |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed immunity to polarity inversion even when inputs exceed supply rails - prevents system lockup in sensor overrange events |
| Long-term offset stability | 0.5 µV typical drift over 10,000 hours - reduces recalibration frequency in metrology-grade equipment |
| Temperature hysteresis | 1 µV typical after full −40°C ↔ +125°C cycling - ensures repeatable zero-point accuracy across thermal cycles |
| Input protection | Internal clamp diodes to both supplies - allows safe operation with input transients up to ±VS ± 0.3 V |
| Unity-gain stable | Phase margin ≥55° at AV = +1 - eliminates need for external compensation in buffer or gain-of-one configurations |
Applications
| Process Control Front-End Amplifier | Optical Network Control Circuit |
|---|---|
Use Scenario: Amplifying low-level mV-range signals from thermocouples and RTDs in distributed I/O modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with sub-µV offset contribution to total system error budget. Use Value: Enables <±0.5°C accuracy in RTD-based temperature monitoring without active nulling or software correction. | Use Scenario: Conditioning photodiode current outputs in fiber-optic power monitors and laser bias controllers. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current minimizing dark-current error. Use Value: Supports accurate optical power measurement down to 100 nA photocurrent with <0.1% linearity error. |
| Precision Sensor Signal Chain | High-Stability Reference Buffer |
Use Scenario: Low-noise amplification of strain gauge bridge outputs in structural health monitoring systems. IC Role / Device Role / Timing Role: Instrumentation-grade difference amplifier with >120 dB CMRR rejecting common-mode EMI. Use Value: Maintains 16-bit effective resolution despite 50/60 Hz mains pickup and RF interference on long sensor cables. | Use Scenario: Buffering precision voltage references (e.g., ADR45xx) in ADC reference paths and DAC output stages. IC Role / Device Role / Timing Role: Low-drift, low-noise unity-gain follower isolating reference from load variations. Use Value: Prevents reference droop and hysteresis-induced errors in high-accuracy data converters operating over extended temperature ranges. |
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 |
|---|---|---|---|
| OP1177ARZ | Higher offset drift (0.6 µV/°C max), lower GBW (1.3 MHz), no MSL1 rating | Limited to commercial temperature range (−40°C to +125°C not fully specified); less suitable for reflow-critical production | Choose OP1177ARZ only if cost sensitivity outweighs long-term stability and manufacturability requirements |
| AD8677ARZ | Higher input bias current (2 nA max), higher noise (7.9 nV/√Hz), same offset spec but no published long-term drift data | Lower channel separation (−110 dB vs. −125 dB) - less ideal for multi-channel simultaneous sampling systems | Prefer AD8677ARZ when higher slew rate (2.5 V/µs) is needed over ultra-low drift and noise |
Compared with OP1177ARZ and AD8677ARZ, the ADA4077-1ARMZ provides superior long-term stability (0.5 µV/10k hrs), tighter offset drift control (0.25 µV/°C), and guaranteed MSL1 compliance - making it the preferred choice for field-deployed instrumentation requiring unattended calibration intervals and robust manufacturing yield.
Availability
ADA4077-1ARMZ is available at Aetrix Electronics and suitable for process control front-end amplifiers, optical network control circuits, and precision sensor signal chains requiring stable component supply across extended temperature ranges and high-reliability reflow processes.
Supply support for ADA4077-1ARMZ 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 ADA4077-1ARMZ belongs to Analog Devices' sixth-generation precision op amp family, engineered specifically for metrology-grade signal conditioning where offset, drift, noise, and long-term stability dominate system accuracy requirements.
FAQ
What is the maximum operating temperature range for the ADA4077-1ARMZ?
The ADA4077-1ARMZ 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 range. This enables deployment in harsh environments such as motor control cabinets, outdoor base stations, and engine compartments where ambient temperatures exceed standard commercial limits.
Does the ADA4077-1ARMZ require external compensation for capacitive loads?
No, the ADA4077-1ARMZ is unity-gain stable and remains stable with capacitive loads exceeding 1000 pF without external compensation. This eliminates the need for isolation resistors or feedback capacitors in transimpedance or cable-driving applications, simplifying layout and preserving phase margin in precision sensor interfaces.
What is the significance of the MSL1 rating for the ADA4077-1ARMZ?
The MSL1 rating means the ADA4077-1ARMZ has unlimited floor life and withstands peak reflow temperatures up to 260°C per IPC/JEDEC J-STD-020. This eliminates baking requirements before assembly and ensures reliability in high-volume, lead-free manufacturing lines-critical for automotive and industrial customers with strict process control standards.
How does the ADA4077-1ARMZ prevent phase reversal during input overvoltage?
The ADA4077-1ARMZ incorporates internal input stage protection that maintains correct polarity even when inputs exceed the supply rails. Unlike legacy precision op amps, it avoids catastrophic phase inversion that can cause feedback loop instability or latch-up-making it safe for use in sensor interfaces prone to transient overvoltage events like ESD or inductive kickback.
Is the ADA4077-1ARMZ pin-compatible with earlier OP07-family devices?
No, the ADA4077-1ARMZ uses an 8-lead MSOP (RM-8) footprint distinct from the OP07's 8-lead SOIC. While functionally equivalent as a precision op amp, its pinout differs: pins 1, 5, and 8 are NIC (not internally connected), unlike OP07's NC, offset null, and NC assignments. PCB redesign is required for drop-in replacement.
ADA4077-1ARMZ 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:
- 1
- Output Type:
- -
- Slew Rate:
- 1.2V/µs
- Gain Bandwidth Product:
- 3.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 400 pA
- Voltage - Input Offset:
- 50 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-MSOP
ADA4077-1ARMZ FAQ
1.How can I place an order for ADA4077-1ARMZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4077-1ARMZ 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 ADA4077-1ARMZ reliable?
The price and inventory of ADA4077-1ARMZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4077-1ARMZ is usually 5 days.
3.What payment methods are accepted for ADA4077-1ARMZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4077-1ARMZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4077-1ARMZ?
ADA4077-1ARMZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4077-1ARMZ 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 ADA4077-1ARMZ?
For technical support, including ADA4077-1ARMZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4077-1ARMZ requirements.
6.How does Aetrix verify that ADA4077-1ARMZ is sourced from the original manufacturer or authorized distributors?
All ADA4077-1ARMZ 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 ADA4077-1ARMZ meets industry standards.
7.What is the process for return or replacement of ADA4077-1ARMZ?
All ADA4077-1ARMZ units undergo pre-shipment inspection (PSI). If there is an issue with ADA4077-1ARMZ, 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 ADA4077-1ARMZ part is unused and in its original packaging.
Return procedure for ADA4077-1ARMZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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