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Analog Devices Inc. ADA4077-2TRMZ-EP
- Part No.:
- ADA4077-2TRMZ-EP
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADA4077-2TRMZ-EP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,490
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Product details
Overview
ADA4077-2TRMZ-EP from Analog Devices is a dual, high-precision operational amplifier engineered for ultra-low offset voltage (90 µV max at 25°C), ultra-low drift (1.2 µV/°C max), and low input bias current (1 nA max). It delivers 3.9 MHz gain bandwidth, 6.9 nV/√Hz voltage noise density at 1 kHz, and operates across ±2.5 V to ±15 V supplies. It is deployed in thermocouple signal conditioning, RTD front-end amplification, and precision shunt current measurement.
For engineers reviewing the ADA4077-2TRMZ-EP datasheet, ADA4077-2TRMZ-EP pinout, ADA4077-2TRMZ-EP application, or ADA4077-2TRMZ-EP equivalent, key selection criteria include guaranteed −55°C to +125°C operation, MSL1 moisture sensitivity rating, unity-gain stability with >1000 pF capacitive loads, and CMRR/PSRR >120 dB over full temperature range.
Technical Context
The ADA4077-2TRMZ-EP implements a precision bipolar input stage delivering sub-100 µV offset and <1.2 µV/°C drift, supported by 70 GΩ common-mode input resistance and 5 pF input capacitance. Its architecture ensures no phase reversal and stable operation into heavy capacitive loads without external compensation.
It features dual-channel isolation with −125 dB channel separation at 1 kHz, rail-to-rail output swing within 1.2 V of rails (±5 V supply), and robust ESD protection (6 kV HBM). The device is qualified per AQEC standards for defense/aerospace use and manufactured at a single fab/assembly site with controlled baseline.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 90 µV max at 25°C; enables direct digitization of µV-level sensor signals without trimming. |
| Offset Drift | 1.2 µV/°C max over −55°C to +125°C; maintains accuracy in uncontrolled thermal environments. |
| Gain Bandwidth Product | 3.9 MHz at ±5 V; supports stable closed-loop gain ≥100 up to ~39 kHz. |
| Voltage Noise Density | 6.9 nV/√Hz at 1 kHz; critical for low-noise amplification of strain gage and thermocouple outputs. |
| Supply Current per Amp | 400–450 µA typical at 25°C; allows dual-channel precision amplification in power-constrained instrumentation. |
| CMRR / PSRR | ≥120 dB minimum over full temperature range; rejects supply and common-mode interference in noisy industrial settings. |
| Operating Temperature | −55°C to +125°C; certified for extended industrial and aerospace applications per AQEC requirements. |
Pinout & Package
The ADA4077-2TRMZ-EP is housed in an 8-lead Mini Small Outline Package (MSOP, RM-8) with 0.65 mm pitch, JEDEC MO-187-AA compliant, and MSL1 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Output of Amplifier A | Capable of sourcing/sinking ±10 mA; swings to within 1.2 V of rails under load. |
| 2 - −IN A | Inverting Input of Amplifier A | High-impedance node (70 GΩ); connects to feedback network for inverting configurations. |
| 3 - +IN A | Noninverting Input of Amplifier A | High-impedance node; used for reference-based sensing or noninverting gain stages. |
| 4 - V− | Negative Supply Rail | Accepts −2.5 V to −15 V; must be decoupled locally for noise immunity. |
| 5 - +IN B | Noninverting Input of Amplifier B | Independent input for second channel; enables dual-sensor conditioning on one die. |
| 6 - −IN B | Inverting Input of Amplifier B | Independent input; supports matched dual-channel filtering or differential pair implementation. |
| 7 - OUT B | Output of Amplifier B | Electrically isolated from OUT A (−125 dB separation); avoids crosstalk in multi-channel systems. |
| 8 - V+ | Positive Supply Rail | Accepts +2.5 V to +15 V; requires local 0.1 µF ceramic decoupling to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low offset drift | 0.5–1.2 µV/°C ensures <1 µV total drift over 0–70°C ambient, eliminating recalibration in field-deployed sensors. |
| MSL1 moisture rating | Enables direct placement into high-reliability reflow processes without baking, reducing manufacturing risk. |
| No phase reversal | Prevents output latch-up during input overdrive-critical for fault-tolerant front-end protection circuits. |
| Capacitive load drive | Stable with >1000 pF loads; eliminates need for isolation resistors in ADC driver or filter applications. |
| AQEC-enhanced product | Single-fab/fab-site traceability, controlled baseline, and qualification data available-required for defense/aerospace BOMs. |
Applications
| Thermocouple Signal Conditioning | RTD Bridge Amplification |
|---|---|
|
Use Scenario: Amplifying microvolt-level Seebeck voltages from Type K/J thermocouples in furnace control systems. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with cold-junction compensation interface. Use Value: 90 µV max offset and 1.2 µV/°C drift enable ≤0.5°C absolute accuracy over −40°C to +125°C ambient without calibration. |
Use Scenario: Exciting and measuring 100 Ω/1000 Ω platinum RTDs in process control transmitters. IC Role / Device Role / Timing Role: Low-drift, low-noise difference amplifier for 4-wire Kelvin RTD bridge outputs. Use Value: 70 GΩ input resistance minimizes lead-resistance errors; 6.9 nV/√Hz noise preserves resolution in 24-bit ΣΔ ADC systems. |
| Strain Gage Wheatstone Bridge | Precision Shunt Current Sensing |
|
Use Scenario: Reading mV-level differential outputs from full-bridge strain gages in structural health monitoring. IC Role / Device Role / Timing Role: Dual-channel, matched-gain amplifier for bridge excitation and output amplification. Use Value: −125 dB channel separation prevents cross-talk between excitation and sense paths; 3.9 MHz GBW supports fast dynamic load response. |
Use Scenario: Measuring bidirectional motor-phase currents via 1–10 mΩ shunts in servo drives. IC Role / Device Role / Timing Role: High-CMRR current-sense amplifier with integrated gain and rail-to-rail output. Use Value: ≥120 dB CMRR rejects PWM switching noise; output swing to within 1.2 V of rails maximizes dynamic range into 3.3 V ADCs. |
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 |
|---|---|---|---|
| ADA4522-2ARMZ | Zero-drift auto-zero architecture; 0.3 µV max offset, but higher 5.8 nV/√Hz noise at 1 kHz. | Better DC accuracy for ultra-low-frequency sensors; less suitable for wideband strain gage AC response. | Choose ADA4522-2ARMZ when sub-µV offset dominates over noise; ADA4077-2TRMZ-EP preferred for balanced DC+AC performance. |
| OPA2189IDR | Zero-drift, 5.2 nV/√Hz noise, 10 MHz GBW, but only rated −40°C to +125°C-not AQEC qualified. | Higher speed for fast-settling applications; lacks extended low-temp support and defense-grade traceability. | Choose OPA2189IDR for commercial industrial designs needing speed; ADA4077-2TRMZ-EP required for −55°C operation and AQEC compliance. |
Compared with ADA4522-2ARMZ and OPA2189IDR, the ADA4077-2TRMZ-EP uniquely balances ultra-low drift, low noise, full military-grade temperature range, and AQEC qualification-making it the only option for precision analog front-ends in space-constrained, mission-critical aerospace platforms.
Availability
ADA4077-2TRMZ-EP is available at Aetrix Electronics and suitable for thermocouple conditioning, RTD measurement, and shunt current sensing requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for ADA4077-2TRMZ-EP 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and defense markets.
The ADA4077-2TRMZ-EP belongs to Analog Devices' Enhanced Product line, designed specifically for high-reliability applications demanding extended temperature operation, controlled manufacturing, and AQEC qualification.
FAQ
What is the maximum operating temperature range for the ADA4077-2TRMZ-EP?
The ADA4077-2TRMZ-EP is fully specified from −55°C to +125°C, with all electrical parameters-including offset voltage, drift, CMRR, and PSRR-guaranteed across this extended industrial temperature range. This makes ADA4077-2TRMZ-EP suitable for deployment in avionics, downhole tools, and engine-control modules where ambient extremes are routine.
Does the ADA4077-2TRMZ-EP require external compensation for capacitive loads?
No, the ADA4077-2TRMZ-EP is unity-gain stable and remains stable with capacitive loads exceeding 1000 pF without external compensation. This capability simplifies PCB layout in ADC driver and active filter applications, eliminating series isolation resistors and associated thermal noise penalties.
Is the ADA4077-2TRMZ-EP pin-compatible with standard commercial-grade ADA4077-2 variants?
Yes, the ADA4077-2TRMZ-EP shares identical pinout, footprint, and electrical behavior with the commercial ADA4077-2TRZ and ADA4077-2ARMZ, enabling drop-in replacement in existing designs-provided the system's thermal and reliability requirements align with the enhanced product's −55°C to +125°C rating and AQEC pedigree.
What packaging and moisture sensitivity level does the ADA4077-2TRMZ-EP have?
The ADA4077-2TRMZ-EP is supplied in an 8-lead MSOP (RM-8) package and carries an MSL1 rating per J-STD-020, meaning it can be stored indefinitely at ambient conditions and placed directly into standard Pb-free reflow without baking-reducing manufacturing overhead and moisture-related assembly defects.
How does the ADA4077-2TRMZ-EP achieve high common-mode rejection in noisy environments?
The ADA4077-2TRMZ-EP achieves ≥120 dB CMRR over its full −55°C to +125°C range through precision laser-trimmed input transistor matching and symmetrical internal layout. This performance holds even at elevated frequencies (≥120 dB up to 100 Hz, >100 dB to 10 kHz), making ADA4077-2TRMZ-EP effective in motor-drive current sensing and industrial PLC I/O modules.
ADA4077-2TRMZ-EP 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:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ADA4077-2TRMZ-EP FAQ
1.How can I place an order for ADA4077-2TRMZ-EP through Aetrix?
Please submit a Request for Quotation (RFQ) for ADA4077-2TRMZ-EP 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 ADA4077-2TRMZ-EP reliable?
The price and inventory of ADA4077-2TRMZ-EP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADA4077-2TRMZ-EP is usually 5 days.
3.What payment methods are accepted for ADA4077-2TRMZ-EP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADA4077-2TRMZ-EP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADA4077-2TRMZ-EP?
ADA4077-2TRMZ-EP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADA4077-2TRMZ-EP 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 ADA4077-2TRMZ-EP?
For technical support, including ADA4077-2TRMZ-EP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADA4077-2TRMZ-EP requirements.
6.How does Aetrix verify that ADA4077-2TRMZ-EP is sourced from the original manufacturer or authorized distributors?
All ADA4077-2TRMZ-EP 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 ADA4077-2TRMZ-EP meets industry standards.
7.What is the process for return or replacement of ADA4077-2TRMZ-EP?
All ADA4077-2TRMZ-EP units undergo pre-shipment inspection (PSI). If there is an issue with ADA4077-2TRMZ-EP, 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 ADA4077-2TRMZ-EP part is unused and in its original packaging.
Return procedure for ADA4077-2TRMZ-EP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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