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Analog Devices Inc. OP4177ARUZ-REEL
- Part No.:
- OP4177ARUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OP4177ARUZ-REEL.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:11,953
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Product details
Overview
OP4177ARUZ-REEL 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 noise density at 1 kHz, and operates from ±2.5 V to ±15 V supplies. It is used in RTD and thermocouple front-ends where dc accuracy and thermal stability are critical.
For engineers reviewing the OP4177ARUZ-REEL datasheet, OP4177ARUZ-REEL pinout, OP4177ARUZ-REEL application, or OP4177ARUZ-REEL equivalent, key selection criteria include guaranteed −40°C to +125°C operation, 14-lead TSSOP (RU) package compatibility, channel separation >120 dB at 100 kHz, and no phase reversal under overvoltage conditions.
Technical Context
The OP4177ARUZ-REEL implements a precision bipolar input stage with internal 500 Ω series resistors enabling ±2.5 V input overvoltage protection beyond supply rails. Its open-loop gain exceeds 1000 V/mV with CMRR, PSRR, and AVO all ≥120 dB across temperature, supporting stable closed-loop performance in high-gain configurations up to 100× without external compensation.
It features unity-gain stability and drives capacitive loads >1000 pF directly. The quad architecture maintains channel-to-channel isolation of −120 dB at 100 kHz, minimizing crosstalk in multi-sensor signal chains such as 4-wire RTD bridges or multi-channel data acquisition front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 75 μV max at 25°C; ensures ≤0.075 mV error in 1 V full-scale measurement circuits. |
| Offset Drift | 0.9 μV/°C max over −40°C to +125°C; contributes <0.15 mV total drift across 165°C range. |
| Input Bias Current | 2 nA max over full temperature range; enables use with high-impedance sensors (e.g., >1 MΩ RTD sense lines) without significant offset shift. |
| Supply Current per Amp | 500 μA max at 25°C; supports low-power battery-operated instrumentation with 2 mA total quiescent draw. |
| Gain Bandwidth Product | 1.3 MHz; sufficient for anti-aliasing filters and sensor amplification up to ~10 kHz bandwidth. |
| CMRR / PSRR | ≥120 dB min over temperature; rejects common-mode noise from shared power rails or ground loops in mixed-signal PCBs. |
| Output Swing | ±14.1 V into 1 mA load at ±15 V supply; delivers rail-to-rail usable dynamic range for 16-bit ADC interfacing. |
Pinout & Package
The OP4177ARUZ-REEL is housed in a 14-lead TSSOP (RU suffix) package, 5.0 mm × 4.4 mm × 1.2 mm body, 0.65 mm lead pitch, moisture sensitivity level 1 (MSL1), RoHS-compliant.
| 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. |
| 2 | –IN A | Inverting input of Amp A; protected by internal 500 Ω resistor to tolerate ±2.5 V beyond supply rails. |
| 3 | +IN A | Non-inverting input of Amp A; matched impedance to –IN A for optimal CMRR. |
| 4 | V+ | Positive supply rail; accepts ±2.5 V to ±15 V; decoupling capacitor required at pin. |
| 5 | +IN B | Non-inverting input of Amp B; electrically isolated from other channels with >120 dB separation at 100 kHz. |
| 6 | –IN B | Inverting input of Amp B; shares same overvoltage protection structure as Pin 2. |
| 7 | OUT B | Amplifier B output; identical AC/DC specs to Pin 1; supports independent feedback networks. |
| 8 | NC | No connect; not internally bonded; must be left floating or grounded per layout best practice. |
| 9 | –IN C | Inverting input of Amp C; part of fully independent quad core with matched thermal tracking. |
| 10 | +IN C | Non-inverting input of Amp C; referenced to same V– and V+ as other channels. |
| 11 | OUT C | Amplifier C output; supports simultaneous 3-channel sensor readout without crosstalk degradation. |
| 12 | +IN D | Non-inverting input of Amp D; enables fourth independent gain stage in compact footprint. |
| 13 | –IN D | Inverting input of Amp D; matches Pin 2/6/9 in ESD robustness and bias current spec. |
| 14 | V– | Negative supply rail; symmetric to V+; requires local 0.1 μF ceramic bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal | Guaranteed immunity to polarity inversion when inputs exceed supply rails-enables safe direct connection to unconditioned sensor outputs. |
| Input overvoltage protection | Internal 500 Ω series resistors allow ±2.5 V beyond V+/V− without external components-reduces BOM count in field-deployed equipment. |
| Wide temperature operation | Fully specified from −40°C to +125°C-supports deployment in engine control units, industrial PLCs, and outdoor telecom infrastructure. |
| Low 1/f noise | 0.4 μV p-p (0.1 Hz to 10 Hz); critical for precision DC measurements like thermocouple cold-junction compensation. |
| High channel separation | −120 dB at 100 kHz; preserves signal integrity in multi-channel bridge-based strain gauge or load cell arrays. |
Applications
| RTD Signal Conditioning | Thermocouple Amplification |
|---|---|
Use Scenario: 4-wire platinum RTD (PT100/PT1000) measurement in industrial temperature transmitters with 0.1°C resolution requirement. IC Role / Device Role / Timing Role: Quad amplifier configures two channels as constant-current source and two as differential instrumentation amplifier for ratiometric sensing. Use Value: 0.9 μV/°C drift and 2 nA bias current minimize self-heating errors and reference current drift, enabling <0.05°C system-level accuracy over full temperature range. | Use Scenario: K-type thermocouple interface in HVAC controllers requiring cold-junction compensation and linearization. IC Role / Device Role / Timing Role: One channel buffers cold-junction thermistor; another performs precision difference amplification of thermocouple EMF vs. reference voltage. Use Value: 0.4 μV p-p 0.1–10 Hz noise and 120 dB CMRR suppress 50/60 Hz pickup and ground loop interference in building wiring environments. |
| Strain Gauge Bridge Readout | Precision Shunt Current Sensing |
Use Scenario: Wheatstone bridge output amplification in weigh scale load cells with 24-bit sigma-delta ADC backend. IC Role / Device Role / Timing Role: Single OP4177ARUZ-REEL provides excitation buffering, bridge output amplification, and reference scaling in one RU-14 package. Use Value: Matched quad topology ensures consistent gain/offset tracking across channels, reducing calibration effort and improving long-term repeatability. | Use Scenario: Bidirectional current monitoring in motor drive inverters using 1 mΩ shunt resistor and isolated ADC. IC Role / Device Role / Timing Role: Two amplifiers configured as high-side and low-side current sense amplifiers with matched gain and offset. Use Value: 75 μV max offset and 0.9 μV/°C drift ensure <1% error in 10 A full-scale measurement across automotive under-hood temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP4177ARZ-REEL | Same electrical specs; packaged in 14-lead SOIC_N (R-14) instead of TSSOP (RU-14); θJA = 120°C/W vs. 240°C/W. | Better thermal performance in high-power-density layouts; larger footprint unsuitable for space-constrained modules. | Select OP4177ARZ-REEL when board real estate allows and junction temperature rise must be minimized. |
| AD8676ARZ-REEL | Dual-channel only; lower 0.6 μV/°C drift but higher 12 nV/√Hz noise; no input overvoltage protection; 10-lead SOIC. | Not suitable for quad-channel or overvoltage-tolerant designs; preferred where ultra-low drift dominates over noise or protection. | Choose AD8676ARZ-REEL only for dual-channel, low-drift, non-overvoltage applications where noise floor is secondary. |
Compared with OP4177ARZ-REEL, the OP4177ARUZ-REEL trades thermal resistance for 35% smaller PCB area-critical in portable instrumentation. Versus AD8676ARZ-REEL, it adds two channels, overvoltage protection, and lower noise at the cost of slightly higher drift, making it superior for multi-sensor industrial front-ends.
Availability
OP4177ARUZ-REEL is available at Aetrix Electronics and suitable for RTD signal conditioning, thermocouple amplification, strain gauge bridge readout, and precision shunt current sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OP4177ARUZ-REEL 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 design centers worldwide.
The OPx177 family-including OP4177ARUZ-REEL-is engineered for high-accuracy, low-drift, low-noise signal conditioning in demanding industrial, instrumentation, and sensor interface applications where reliability across −40°C to +125°C is mandatory.
FAQ
What is the maximum operating temperature range for OP4177ARUZ-REEL?
The OP4177ARUZ-REEL is fully specified from −40°C to +125°C, matching the widest temperature range of any high-precision op-amp in surface-mount packaging. This enables reliable operation in automotive under-hood modules, industrial PLCs, and outdoor telecom base stations without derating. All key parameters-including offset voltage, drift, CMRR, and PSRR-are guaranteed across this full range per the Rev. I datasheet.
Does OP4177ARUZ-REEL require external input protection resistors?
No. The OP4177ARUZ-REEL integrates 500 Ω series resistors on both inputs, allowing input voltages up to ±2.5 V beyond the V+ and V− supply rails without damage or phase reversal. External resistors are only needed if overvoltage exceeds ±2.5 V beyond rails-e.g., for 30 V transients-where a current-limiting resistor sized per the datasheet formula ensures safe operation while adding <5 μV offset.
Can OP4177ARUZ-REEL drive heavy capacitive loads without oscillation?
Yes. The OP4177ARUZ-REEL is unity-gain stable and characterized to drive capacitive loads exceeding 1000 pF directly, with no external compensation required. This capability simplifies anti-aliasing filter design and eliminates stability risks when interfacing to ADC input capacitors or long PCB traces. Performance remains stable across temperature and supply voltage variations per Figure 17 and Figure 37 in the Rev. I datasheet.
How does the channel separation of OP4177ARUZ-REEL impact multi-sensor designs?
The OP4177ARUZ-REEL provides −120 dB channel separation at 100 kHz, minimizing crosstalk between simultaneously active amplifiers. In 4-channel applications-such as simultaneous RTD, thermocouple, strain gauge, and current sense-it prevents signal leakage that could corrupt high-resolution measurements. This specification is measured and guaranteed, unlike typical "typical" values found in competing datasheets.
Is OP4177ARUZ-REEL pin-compatible with other OPx177 family members?
No. The OP4177ARUZ-REEL uses a 14-lead TSSOP (RU-14) package with unique pinout (Figure 6). It is not pin-compatible with the 14-lead SOIC_N (R-14) variant OP4177ARZ-REEL, nor with dual (OP2177) or single (OP1177) versions. Layout redesign is required when substituting between RU and R packages-even though electrical specs are identical-due to differing pad geometry and thermal pad presence.
OP4177ARUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-TSSOP
OP4177ARUZ-REEL FAQ
1.How can I place an order for OP4177ARUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for OP4177ARUZ-REEL 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 OP4177ARUZ-REEL reliable?
The price and inventory of OP4177ARUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP4177ARUZ-REEL is usually 5 days.
3.What payment methods are accepted for OP4177ARUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP4177ARUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP4177ARUZ-REEL?
OP4177ARUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP4177ARUZ-REEL 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 OP4177ARUZ-REEL?
For technical support, including OP4177ARUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP4177ARUZ-REEL requirements.
6.How does Aetrix verify that OP4177ARUZ-REEL is sourced from the original manufacturer or authorized distributors?
All OP4177ARUZ-REEL 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 OP4177ARUZ-REEL meets industry standards.
7.What is the process for return or replacement of OP4177ARUZ-REEL?
All OP4177ARUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with OP4177ARUZ-REEL, 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 OP4177ARUZ-REEL part is unused and in its original packaging.
Return procedure for OP4177ARUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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