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Texas Instruments OPA177GSE4
- Part No.:
- OPA177GSE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA177GSE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,863
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Product details
Overview
OPA177GSE4 from Texas Instruments is a precision bipolar operational amplifier designed for high-accuracy signal conditioning in low-drift, low-noise analog front-ends. It delivers 25 µV max input offset voltage, 0.3 µV/°C max offset drift, 134 dB min open-loop gain, ±13.5 V output swing (RL ≥ 2 kΩ), and operates from ±3 V to ±18 V dual supply - enabling use in laboratory instrumentation, temperature transmitters, and battery test systems.
For engineers reviewing the OPA177GSE4 datasheet, OPA177GSE4 pinout, OPA177GSE4 application, or OPA177GSE4 equivalent, key selection criteria include guaranteed low drift over –40°C to +85°C, laser-trimmed input bias current cancellation, no external trimming requirement, and SOIC-8 packaging compatible with automated assembly and thermal-stable PCB layouts.
Technical Context
The OPA177GSE4 employs a laser-trimmed bipolar input stage with internal input bias current cancellation, eliminating the need for external balancing resistors and reducing thermoelectric error sources. Its architecture achieves stable unity-gain operation without compensation, supporting precision DC-coupled configurations such as sensor amplification and reference buffering.
Input protection includes 500-Ω series resistors and diode clamps rated for ±30-V differential input, while the device's 85 nVRMS (0.1–100 Hz) input voltage noise and 45 pARMS input current noise are optimized for source impedances between 2 kΩ and 50 kΩ - making it suitable for high-resolution DAQ and analog input modules where long-term stability dominates performance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset voltage | ±25 µV (max) - ensures ≤0.001% gain error in 10-V full-scale precision measurement circuits |
| Offset drift | ±0.3 µV/°C (max) - limits thermal-induced error to <1 µV over 10°C ambient shift |
| Open-loop gain | 134 dB (min) - supports ≥1000 closed-loop gain stability with <0.01% linearity error |
| Supply range | ±3 V to ±18 V - enables direct interface with industrial ±15-V rails and battery-powered ±12-V systems |
| Input bias current | ±2 nA (max) - allows use with high-impedance sensors (e.g., RTDs, thermocouples) without significant voltage drop |
| Output swing | ±13.5 V (min, RL ≥ 2 kΩ) - delivers full dynamic range into standard instrumentation loads |
| Quiescent current | 1.3 mA (typ) - reduces self-heating drift and enables low-power portable instrumentation designs |
Pinout & Package
OPA177GSE4 is supplied in an 8-pin SOIC (D package), 4.9 mm × 6 mm body size, RoHS-compliant, with moisture sensitivity level (MSL) 3 (260°C peak reflow, 168-hour floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +In (Pin 3) | Noninverting input | High-impedance node for reference or sensor signal routing; matched thermal path required for drift minimization |
| −In (Pin 2) | Inverting input | Feedback node location; internal bias current cancellation eliminates need for external resistor matching |
| V+ (Pin 7) | Positive supply | Connects to highest potential rail; requires local 0.1-µF ceramic decoupling per TI layout guidelines |
| V− (Pin 4) | Negative supply | Connects to lowest potential rail; symmetric decoupling critical for PSRR >115 dB performance |
| VO (Pin 6) | Output | Capable of sourcing/sinking ±35 mA; drives 2-kΩ loads to ±13.5 V with <0.1% linearity error |
| Offset Trim (Pins 1 & 8) | Trim terminals | Laser-trimmed at wafer level; leave floating unless fine-tuning required - adds ±3 mV adjustment range |
| No Internal Connection (Pin 5) | NC | Internally unconnected; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed offset & drift | Eliminates factory calibration and external nulling circuitry, reducing BOM count and board area in production instrumentation |
| Internal input bias current cancellation | Removes need for input-resistor balancing, preventing added noise and offset errors common in conventional op-amp layouts |
| Unity-gain stable architecture | Enables direct use in buffer, integrator, and transimpedance configurations without phase-compensation components |
| ±30-V differential input rating | Withstands transient overvoltage events in PLC analog input modules without external protection diodes |
| Low warm-up drift | 1.3 mA quiescent current minimizes thermal gradients during power-on stabilization, critical for lab-grade repeatability |
Applications
| Analog Input Module | Data Acquisition (DAQ) |
|---|---|
Use Scenario: Signal conditioning for 16-bit+ industrial analog input cards receiving 4–20 mA, ±10 V, or thermocouple inputs. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier providing gain, filtering, and level-shifting before ADC sampling. Use Value: ±25 µV offset and ±0.3 µV/°C drift ensure <0.005% total unadjusted error across temperature, meeting IEC 61000-4-3 immunity requirements. | Use Scenario: High-resolution data logging in portable environmental monitors measuring temperature, pressure, and humidity. IC Role / Device Role / Timing Role: Low-noise front-end amplifier driving SAR or sigma-delta ADCs with minimal added noise floor degradation. Use Value: 85 nVRMS (0.1–100 Hz) input voltage noise preserves SNR in sub-100 µV sensor signals without chopper artifacts. |
| Battery Test System | Temperature Transmitter |
Use Scenario: Precision voltage/current measurement during charge/discharge cycling of Li-ion and lead-acid batteries. IC Role / Device Role / Timing Role: Current-sense amplifier and reference buffer in four-quadrant power measurement subsystems. Use Value: Laser-trimmed drift ensures consistent accuracy over 85°C operating range, avoiding recalibration during extended thermal soak tests. | Use Scenario: 4–20 mA loop-powered transmitter converting RTD or thermistor resistance to standardized current output. IC Role / Device Role / Timing Role: Bridge amplifier and linearization stage in two-wire or three-wire RTD measurement topologies. Use Value: ±2 nA input bias current prevents self-heating errors in high-resistance RTD legs, maintaining <0.1°C measurement fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision bipolar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA206IDR | Integrated ±40-V overvoltage protection; higher 1.8 mA IQ; FET input (lower IB but higher voltage noise) | Required in harsh industrial I/O where input fault tolerance exceeds ±30 V | Select OPA206IDR when robustness against field wiring faults outweighs ultra-low drift requirements |
| AD707JRZ | Similar 25 µV VOS, but 0.6 µV/°C drift (2× higher); 140 dB AOL; same SOIC-8 footprint | Suitable for cost-sensitive lab equipment where moderate drift is acceptable | Choose AD707JRZ only if legacy design reuse or second-source qualification mandates identical pinout and basic specs |
Compared with OPA177GSE4, the OPA206IDR trades lower drift for integrated overvoltage protection and higher quiescent current, while the AD707JRZ offers pin compatibility but doubles the temperature-induced offset drift - making OPA177GSE4 optimal for applications demanding long-term DC stability without sacrificing SOIC-8 manufacturability.
Availability
OPA177GSE4 is available at Aetrix Electronics and suitable for analog input modules, data acquisition systems, and temperature transmitters requiring stable component supply across industrial temperature ranges and multi-year production cycles.
Supply support for OPA177GSE4 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of heritage in precision op amp design and manufacturing.
The OPA177GSE4 belongs to TI's precision bipolar op amp product line, engineered specifically for high-stability, low-drift instrumentation applications where laser trimming, thermal error mitigation, and DC accuracy supersede speed or power efficiency.
FAQ
What is the maximum operating temperature range for the OPA177GSE4?
The OPA177GSE4 is specified for operation from –40°C to +85°C ambient temperature. All key parameters - including offset voltage (±40 µV max), offset drift (±0.3 µV/°C max), and open-loop gain (126 dB min) - are guaranteed across this full industrial temperature range per the official TI SBOS008A datasheet revision September 2023.
Does the OPA177GSE4 require external offset nulling components?
No, the OPA177GSE4 does not require external offset nulling components under typical conditions. It features laser-trimmed input offset voltage and drift, achieving ±25 µV max VOS and ±0.3 µV/°C max dVOS/dT without trimming. Pins 1 and 8 are provided for optional external potentiometer adjustment (±3 mV range), but leaving them unconnected is standard practice for most precision applications using the OPA177GSE4.
Is the OPA177GSE4 unity-gain stable?
Yes, the OPA177GSE4 is unity-gain stable. Its internal compensation ensures stable operation with closed-loop gains ≥1, eliminating the need for external compensation capacitors in buffer, follower, or inverting amplifier configurations. This characteristic is explicitly confirmed in Section 7.1 of the TI SBOS008A datasheet and verified across load conditions up to 2 kΩ.
What package type is used for the OPA177GSE4?
The OPA177GSE4 uses an 8-pin SOIC (Small Outline Integrated Circuit) package, designated as "D" by Texas Instruments, with dimensions 4.9 mm × 6 mm. This surface-mount package is RoHS-compliant, MSL Level-3 rated (260°C peak reflow), and compatible with standard automated PCB assembly processes - distinct from the obsolete PDIP variants (e.g., OPA177GP) listed in TI's orderable addendum.
How does the OPA177GSE4 handle input overvoltage conditions?
The OPA177GSE4 incorporates 500-Ω series input resistors and diode clamps that protect against ±30-V differential input overvoltage without damage. While this provides robustness for field wiring faults, it does not offer the ±40-V integrated overvoltage protection found in the OPA206 family. For applications requiring higher fault tolerance - such as programmable logic controller (PLC) analog inputs - the OPA206 is recommended instead of the OPA177GSE4.
OPA177GSE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 600 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 pA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 1.3mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 6 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA177GSE4 FAQ
1.How can I place an order for OPA177GSE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA177GSE4 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 OPA177GSE4 reliable?
The price and inventory of OPA177GSE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA177GSE4 is usually 5 days.
3.What payment methods are accepted for OPA177GSE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA177GSE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA177GSE4?
OPA177GSE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA177GSE4 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 OPA177GSE4?
For technical support, including OPA177GSE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA177GSE4 requirements.
6.How does Aetrix verify that OPA177GSE4 is sourced from the original manufacturer or authorized distributors?
All OPA177GSE4 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 OPA177GSE4 meets industry standards.
7.What is the process for return or replacement of OPA177GSE4?
All OPA177GSE4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA177GSE4, 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 OPA177GSE4 part is unused and in its original packaging.
Return procedure for OPA177GSE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA177GSE4 Tags
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