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Texas Instruments OPA177GPG4
- Part No.:
- OPA177GPG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
OPA177GPG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,266
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Product details
Overview
OPA177GPG4 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, ±15 V max common-mode input range, and operates from ±3 V to ±18 V dual supply (6–36 V single). It serves as a direct replacement for OP-07, OP-77, and AD707 in industrial instrumentation and data acquisition systems.
For engineers reviewing the OPA177GPG4 datasheet, OPA177GPG4 pinout, OPA177GPG4 application, or OPA177GPG4 equivalent, key selection criteria include its laser-trimmed offset stability over temperature, internal input bias current cancellation eliminating external balancing resistors, low 1.3 mA quiescent current reducing thermal drift, and SOIC-8 packaging compatible with automated PCB assembly.
Technical Context
The OPA177GPG4 uses a laser-trimmed bipolar input stage with integrated input bias current cancellation, enabling near-zero net input bias current without external compensation. Its architecture eliminates the need for input-resistor matching and avoids thermoelectric error sources in high-precision DC-coupled paths.
It features unity-gain stability, 0.4 MHz closed-loop bandwidth at G = 1, and robust ±30 V differential input protection via internal 500 Ω series resistors and diode clamps. The device maintains 134 dB open-loop gain across ±10 V output swing and exhibits 85 nVRMS input voltage noise (0.1–100 Hz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input offset voltage | ±25 µV (max) - enables sub-100 µV system-level DC error in 16-bit DAQ front-ends without trimming |
| Offset voltage drift | ±0.3 µV/°C (max) - ensures <1 µV total drift over 85°C industrial temperature range |
| Open-loop gain | 134 dB (min) - supports >100 dB closed-loop accuracy in precision gain stages |
| Supply voltage range | ±3 V to ±18 V (dual), 6–36 V (single) - accommodates wide-rail industrial sensors and battery-powered test equipment |
| Quiescent current | 1.3 mA (typ) - minimizes self-heating and warm-up drift critical for lab-grade calibration systems |
| Input bias current | ±2 nA (max) - allows use with high-impedance pH electrodes and thermocouple cold-junction circuits |
| Common-mode range | ±13 V (min) - supports direct interfacing to ±10 V industrial analog inputs without level-shifting |
Pinout & Package
OPA177GPG4 is supplied in an 8-pin SOIC (D package), 4.9 mm × 6 mm body size, RoHS-compliant with NiPdAu lead finish and MSL Level-3 moisture sensitivity rating.
| 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 minimal thermoelectric offset |
| −In (Pin 2) | Inverting input | Feedback node; internal bias current cancellation eliminates need for external balancing resistor |
| V+ (Pin 7) | Positive power supply | Accepts up to +18 V (dual) or +36 V (single); requires local 0.1 µF ceramic decoupling |
| V− (Pin 4) | Negative power supply | Accepts down to −18 V (dual) or ground (single); symmetric decoupling recommended |
| VO (Pin 6) | Output | Drives ≥2 kΩ loads to ±13.5 V swing; slew rate limited to 0.3 V/µs for stability |
| Offset Trim (Pins 1 & 8) | Offset null adjustment | Optional 20 kΩ potentiometer connection; leave floating for factory-trimmed performance |
| No Internal Connection (Pin 5) | Unused terminal | Internally unconnected; must remain unconnected on PCB to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed offset and drift | Eliminates external trimming components and reduces calibration labor in production test fixtures |
| Internal input bias current cancellation | Removes requirement for matched input resistors, preventing added noise and offset errors in transimpedance amplifiers |
| Low 1.3 mA quiescent current | Reduces PCB thermal gradients that induce thermoelectric offsets in precision measurement nodes |
| ±30 V differential input protection | Withstands transient overvoltage events in PLC analog input modules without external clamp diodes |
| Unity-gain stable architecture | Enables direct use in buffer, integrator, and active filter configurations without stability-compensation components |
Applications
| Analog Input Module | Data Acquisition (DAQ) |
|---|---|
|
Use Scenario: Industrial programmable logic controller (PLC) analog input card accepting ±10 V field signals with 16-bit resolution. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner providing gain, filtering, and driver functionality before ADC sampling. Use Value: Laser-trimmed 0.3 µV/°C drift ensures <±2 LSB error over full temperature range without recalibration. |
Use Scenario: Benchtop multichannel DAQ system acquiring thermocouple, strain gauge, and RTD signals simultaneously. IC Role / Device Role / Timing Role: Low-noise, low-drift front-end amplifier for sensor excitation and signal conditioning prior to multiplexing and digitization. Use Value: 85 nVRMS (0.1–100 Hz) input voltage noise preserves microvolt-level signal integrity in high-resolution measurements. |
| Battery Test Equipment | Temperature Transmitter |
|
Use Scenario: Automated battery formation and cycling system measuring cell voltage with ±100 µV accuracy during charge/discharge profiling. IC Role / Device Role / Timing Role: High-PSRR (125 dB) voltage monitor amplifier rejecting switching noise from adjacent DC-DC converters. Use Value: 125 dB PSRR suppresses ripple-induced measurement artifacts, enabling clean voltage tracking under dynamic load conditions. |
Use Scenario: 4–20 mA loop-powered temperature transmitter using RTD or thermistor sensing elements. IC Role / Device Role / Timing Role: Precision current-source amplifier and linearization stage operating from limited loop power budget. Use Value: 1.3 mA quiescent current leaves sufficient headroom for sensor excitation and output driver within 3.5 mA loop budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA277GP | Higher 1.8 µV/°C max drift and 100 µV max offset; identical SOIC-8 pinout and supply range | Suitable for cost-sensitive applications where <1 µV/°C drift is not required | Select OPA277GP only when drift budget allows ≥5× higher thermal error than OPA177GPG4 |
| AD707JRZ | Similar 25 µV max offset but 0.6 µV/°C max drift; requires external offset trim; different pinout (no NC pin) | Legacy drop-in for existing AD707 designs; lacks internal bias cancellation | Choose AD707JRZ only for backward compatibility-OPA177GPG4 offers superior drift and simplified layout |
Compared with OPA277GP and AD707JRZ, the OPA177GPG4 provides the lowest guaranteed drift (0.3 µV/°C), eliminates external trimming, and integrates bias current cancellation-reducing component count and improving long-term stability in field-deployed instrumentation.
Availability
OPA177GPG4 is available at Aetrix Electronics and suitable for analog input modules, data acquisition systems, and battery test equipment requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for OPA177GPG4 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 expertise in precision op amp design and manufacturing.
The OPA177GPG4 belongs to TI's precision bipolar op amp product line, engineered specifically for high-stability, low-drift signal conditioning in industrial, test & measurement, and scientific instrumentation applications.
FAQ
What is the maximum supply voltage for OPA177GPG4?
The OPA177GPG4 supports a maximum supply voltage of 40 V across V+ and V− terminals (VS = V+ − V−), with recommended operating range of ±3 V to ±18 V dual supply or 6–36 V single supply. Exceeding 40 V absolute maximum risks permanent damage per TI's SBOS008A datasheet Section 6.1.
Does OPA177GPG4 require external offset nulling?
No-OPA177GPG4 is laser-trimmed at wafer level for low offset voltage (±25 µV max) and drift (±0.3 µV/°C max), making external nulling unnecessary in most applications. Pins 1 and 8 are provided for optional adjustment using a 20 kΩ potentiometer, but leaving them unconnected maintains factory-calibrated performance.
Is OPA177GPG4 pin-compatible with OP-07 or AD707?
OPA177GPG4 shares the same 8-pin SOIC footprint and pin functions as OP-07 and AD707, including V+, V−, +In, −In, VO, and offset trim pins. However, Pin 5 is "No Internal Connection" in OPA177GPG4 but functional in some OP-07 variants-verify schematic connectivity before direct substitution.
What is the input voltage noise of OPA177GPG4?
The OPA177GPG4 exhibits 85 nVRMS input voltage noise over the 0.1 Hz to 100 Hz band, as specified in TI's SBOS008A datasheet Section 6.5. This low 1/f noise supports high-resolution DC measurements in applications like strain gauge bridges and thermopile amplifiers.
Can OPA177GPG4 drive a 600 Ω load?
OPA177GPG4 is not optimized for low-impedance loads: its output swing degrades to ±12 V at RL = 1 kΩ and further to ±10.5 V at RL = 600 Ω (per typical characteristics Figure 6-2/6-3). For 600 Ω driving, consider OPA1611 or OPA1678-OPA177GPG4 should be used with RL ≥ 2 kΩ to maintain ±13.5 V swing and specified distortion performance.
OPA177GPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
OPA177GPG4 FAQ
1.How can I place an order for OPA177GPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA177GPG4 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 OPA177GPG4 reliable?
The price and inventory of OPA177GPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA177GPG4 is usually 5 days.
3.What payment methods are accepted for OPA177GPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA177GPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA177GPG4?
OPA177GPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA177GPG4 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 OPA177GPG4?
For technical support, including OPA177GPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA177GPG4 requirements.
6.How does Aetrix verify that OPA177GPG4 is sourced from the original manufacturer or authorized distributors?
All OPA177GPG4 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 OPA177GPG4 meets industry standards.
7.What is the process for return or replacement of OPA177GPG4?
All OPA177GPG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA177GPG4, 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 OPA177GPG4 part is unused and in its original packaging.
Return procedure for OPA177GPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA177GPG4 Tags
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