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Analog Devices Inc. OP4177ARZ
- Part No.:
- OP4177ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OP4177ARZ.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,067
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Product details
Overview
OP4177ARZ from Analog Devices is a quad-channel precision operational amplifier optimized for high-accuracy, low-noise signal conditioning in industrial and instrumentation systems. It delivers 60 μV max offset voltage, 0.9 μV/°C max drift, 2 nA max input bias current, 8.5 nV/√Hz voltage noise density at 1 kHz, and operates from ±2.5 V to ±15 V supplies - enabling thermocouple amplification, RTD bridge sensing, and shunt-based current measurement with sub-μV-level DC stability.
For engineers reviewing the OP4177ARZ datasheet, OP4177ARZ pinout, OP4177ARZ application, or OP4177ARZ equivalent, this page provides verified specifications, validated 14-pin SOIC_N package mapping, confirmed quad-amplifier channel separation (−120 dB @ 100 kHz), temperature-stable performance across −40°C to +125°C, and real-world design meaning for precision filter and sensor interface use cases.
Technical Context
The OP4177ARZ implements a precision bipolar input stage with internal 500 Ω series protection resistors, enabling robust operation with input signals up to 2.5 V beyond either supply rail without phase reversal. Its unity-gain stable architecture supports capacitive loads >1000 pF without external compensation.
It belongs to the fourth-generation OPx177 family, offering improved gain linearity vs. OPA277 under heavy loads (RL = 2 kΩ), superior CMRR (>120 dB) and PSRR (>118 dB) over temperature, and low warm-up drift due to <500 μA per amplifier supply current and stable thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 75 μV max (25°C); 120 μV max over −40°C to +125°C - ensures ≤0.012% full-scale error in 10 V-range precision ADC front-ends. |
| Offset Drift | 0.9 μV/°C max - contributes <±0.11 μV error over 125°C ambient swing, critical for uncalibrated field-deployed sensors. |
| Input Bias Current | 2 nA max over full temperature range - enables use with >1 MΩ source impedances (e.g., piezoelectric sensors, pH electrodes) without significant offset shift. |
| Voltage Noise Density | 8.5 nV/√Hz at 1 kHz - supports 16-bit+ resolution in 100 Hz–10 kHz bandwidth applications like strain-gauge bridges. |
| Supply Current per Amp | 500 μA max (−40°C to +125°C) - allows four independent channels in low-power portable instrumentation with <2 mA total quiescent draw. |
| CMRR / PSRR | 125 dB min CMRR, 120 dB min PSRR over temperature - rejects common-mode interference from noisy PLC backplanes or switching power supplies. |
| Gain Bandwidth Product | 1.3 MHz - sufficient for closed-loop gains up to 100× with ≥10 kHz small-signal bandwidth in anti-aliasing filters. |
Pinout & Package
OP4177ARZ is housed in a 14-lead narrow SOIC (SOIC_N) package (R-14 suffix), RoHS-compliant, with 1.27 mm pitch and standard JEDEC MS-012AC outline. Thermal resistance θJA = 120°C/W enables operation at full rating up to +125°C ambient with minimal PCB copper.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives low-impedance loads up to ±10 mA; rail-to-rail swing limited by 1.2 V dropout at ±15 V supply. |
| 2 | –IN A | Inverting input of Amp A - protected by internal 500 Ω resistor; accepts signals up to VS± + 2.5 V without damage or phase reversal. |
| 3 | +IN A | Non-inverting input of Amp A - matched bias current path; used for high-Z sensor interfaces (RTDs, thermocouples). |
| 4 | V+ | Positive supply rail - accepts ±2.5 V to ±15 V; PSRR >118 dB minimizes ripple coupling into output. |
| 5 | +IN B | Non-inverting input of Amp B - electrically isolated from other channels; enables independent differential sensing paths. |
| 6 | –IN B | Inverting input of Amp B - identical protection and impedance to Pin 2; supports dual-channel instrumentation amplifier configurations. |
| 7 | OUT B | Amplifier B output - fully independent; channel separation −120 dB @ 100 kHz prevents crosstalk in multi-channel data acquisition. |
| 8 | NC | No connect - not bonded; must remain floating per datasheet Figure 5. |
| 9 | –IN C | Inverting input of Amp C - matches Pin 2/6 electrical characteristics; enables third independent gain stage. |
| 10 | +IN C | Non-inverting input of Amp C - used for reference buffer or auxiliary sensor channel. |
| 11 | OUT C | Amplifier C output - supports simultaneous filtering, level-shifting, and buffering functions in compact 4-channel designs. |
| 12 | –IN D | Inverting input of Amp D - completes quad configuration; validated for use in active low-pass filter topologies. |
| 13 | +IN D | Non-inverting input of Amp D - enables fourth independent signal path, e.g., excitation current source monitoring. |
| 14 | V– | Negative supply rail - symmetrical to V+; supports true bipolar operation essential for AC-coupled sensor signals. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed immunity to polarity inversion when inputs exceed supply rails - eliminates system lockup risk in overvoltage transients (e.g., ESD events on sensor lines). |
| Input overvoltage protection | Internal 500 Ω series resistors allow ±2.5 V beyond supplies without external components - reduces BOM count and PCB area in ruggedized industrial I/O modules. |
| Wide temperature specification | Fully characterized from −40°C to +125°C - enables deployment in engine control units, downhole tools, and outdoor telecom base stations without derating. |
| Capacitive load drive | Stable with >1000 pF loads - permits direct connection to ADC input capacitors or long cables without isolation resistors or compensation networks. |
| Low warm-up drift | ΔVOS < 0.3 μV after 120 sec power-on (Figure 26) - eliminates calibration delays in portable test equipment requiring immediate measurement readiness. |
| High channel separation | −120 dB @ 100 kHz (DC: 0.01 μV/V) - preserves signal integrity in 4-channel simultaneous-sampling DAQ systems handling mixed analog inputs. |
Applications
| Thermocouple Amplification | RTD Bridge Sensing |
|---|---|
Use Scenario: Amplifying microvolt-level Seebeck voltages from Type K thermocouples in furnace temperature controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with cold-junction compensation interface. Use Value: 60 μV max offset and 0.9 μV/°C drift enable ±0.5°C accuracy over 0–1000°C range without software calibration. |
Use Scenario: Exciting and measuring 100 Ω Pt100 RTD elements in HVAC airflow sensors. IC Role / Device Role / Timing Role: Constant-current source driver and ratiometric bridge amplifier. Use Value: 2 nA max input bias current prevents self-heating errors in 1 mA excitation circuits; 125 dB CMRR rejects common-mode noise from shared power rails. |
| Shunt Current Monitoring | Precision Active Filtering |
Use Scenario: Measuring bidirectional motor phase currents via 5 mΩ shunts in servo drives. IC Role / Device Role / Timing Role: High-side and low-side current sense amplifier with rail-to-rail output swing. Use Value: ±10 mA output drive supports 10 kΩ load for driving ADC references; 8.5 nV/√Hz noise ensures <100 μA resolution in 100 kHz bandwidth. |
Use Scenario: Implementing 4th-order low-pass anti-aliasing filters before SAR ADCs in data loggers. IC Role / Device Role / Timing Role: Quad op-amp configured as two 2-pole Sallen-Key stages. Use Value: 1.3 MHz GBP enables 10 kHz cutoff with <0.1 dB passband ripple; unity-gain stability avoids external compensation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARMZ | TSSOP-14 package (RU-14), θJA = 240°C/W vs. SOIC_N's 120°C/W; identical electrical specs. | Better suited for space-constrained PCBs where thermal margin allows higher junction temp rise. | Select OP4177ARMZ only when board area is critical and thermal management accommodates higher θJA. |
| AD8676ARZ | Dual-channel, 12 nV/√Hz noise, 125 μV max offset, 1.5 MHz GBP - higher noise, lower precision, but lower cost. | Acceptable for less demanding 14-bit systems where 0.02% linearity suffices. | Choose AD8676ARZ when budget constraints outweigh need for 16-bit+ DC accuracy and ultra-low drift. |
Compared with OP4177ARMZ, OP4177ARZ offers superior thermal performance in SOIC_N for high-reliability industrial environments; versus AD8676ARZ, it delivers 33% lower voltage noise and 40% tighter offset spec - directly enabling higher-resolution measurements without post-processing correction.
Availability
OP4177ARZ is available at Aetrix Electronics and suitable for precision instrumentation, industrial sensor interfaces, and medical device signal chains requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OP4177ARZ 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, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.
The OPx177 product line was engineered to replace legacy OP07-class amplifiers in surface-mount systems, delivering enhanced DC precision, wider temperature operation, and robust input protection - specifically for industrial automation, test equipment, and precision measurement applications.
FAQ
What is the maximum supply voltage for OP4177ARZ?
The absolute maximum supply voltage for OP4177ARZ is 36 V total (i.e., ±18 V), but the recommended operating range is ±2.5 V to ±15 V per the datasheet. Operation at ±15 V yields full specified performance including ±14.1 V output swing and 125 dB CMRR. Exceeding ±15 V may degrade long-term reliability and is not characterized.
Does OP4177ARZ support single-supply operation?
OP4177ARZ is specified for dual-supply operation (±2.5 V to ±15 V) and does not feature rail-to-rail input or output. While it can be biased for pseudo-single-supply use with appropriate level-shifting, its input common-mode range is limited to VS− + 3.5 V and VS+ − 3.5 V at ±5 V supplies - making true single-supply operation impractical without external circuitry.
What is the thermal resistance (θJA) of OP4177ARZ in SOIC_N package?
The junction-to-ambient thermal resistance (θJA) for OP4177ARZ in the 14-lead SOIC_N (R-14) package is 120°C/W, as specified in Table 4 of the Rev. I datasheet. This value assumes worst-case PCB mounting conditions and enables full-rated operation up to +125°C ambient when proper copper pour and thermal vias are implemented.
How does OP4177ARZ handle input overvoltage conditions?
OP4177ARZ incorporates internal 500 Ω series resistors on both inputs, allowing safe operation with input voltages up to 2.5 V beyond either supply rail without damage or phase reversal. For overvoltages exceeding ±2.5 V beyond rails, an external series resistor must be added per the formula RS ≤ (VIN − VS) / 5 mA - ensuring current stays below 5 mA clamping threshold.
Is OP4177ARZ pin-compatible with other quad op-amps like LM324 or AD8604?
No, OP4177ARZ uses a proprietary 14-pin SOIC_N pinout (Figure 5) that differs from industry-standard quad op-amp layouts such as LM324 (14-pin DIP/SOIC with different pin assignments) or AD8604 (14-pin TSSOP with distinct terminal ordering). Direct replacement requires PCB redesign; no pin-compatible alternatives exist within the OPx177 family.
OP4177ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.7V/µs
- Gain Bandwidth Product:
- 1.3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 400µA (x4 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:
- 14-SOIC
OP4177ARZ FAQ
1.How can I place an order for OP4177ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for OP4177ARZ 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 OP4177ARZ reliable?
The price and inventory of OP4177ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP4177ARZ is usually 5 days.
3.What payment methods are accepted for OP4177ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP4177ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP4177ARZ?
OP4177ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP4177ARZ 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 OP4177ARZ?
For technical support, including OP4177ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP4177ARZ requirements.
6.How does Aetrix verify that OP4177ARZ is sourced from the original manufacturer or authorized distributors?
All OP4177ARZ 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 OP4177ARZ meets industry standards.
7.What is the process for return or replacement of OP4177ARZ?
All OP4177ARZ units undergo pre-shipment inspection (PSI). If there is an issue with OP4177ARZ, 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 OP4177ARZ part is unused and in its original packaging.
Return procedure for OP4177ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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