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Texas Instruments OPA377AIDBVR
- Part No.:
- OPA377AIDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA377AIDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,571
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Product details
Overview
OPA377AIDBVR from Texas Instruments is a single, rail-to-rail output CMOS operational amplifier optimized for low-voltage, single-supply operation (2.2V to 5.5V), featuring 5.5MHz gain-bandwidth product, 7.5nV/√Hz input voltage noise at 1kHz, 0.2pA typical input bias current, and 1mV maximum offset voltage. It serves as a precision signal conditioner in photodiode preamplifiers, sensor interfaces, and audio front-ends where low noise and ultra-low input current are critical.
For engineers reviewing the OPA377AIDBVR datasheet, OPA377AIDBVR pinout, OPA377AIDBVR application, or OPA377AIDBVR equivalent, this page delivers verified electrical specifications, SOT-23-5 package layout, real-world use cases in sensor signal conditioning and ADC driving, and two validated alternative parts with documented technical and application differences.
Technical Context
The OPA377AIDBVR employs a CMOS input stage enabling femtoampere-level input bias current and high input impedance, paired with a unity-gain-stable architecture that supports stable operation down to G = +1 without external compensation. Its EMI input filtering (–3dB at ~75MHz) suppresses high-frequency interference before rectification occurs at internal junctions.
Designed for battery-powered systems, it operates across –40°C to +125°C with supply rejection of 28mV/V (typ) and common-mode rejection of 90dB (typ), while maintaining rail-to-rail output swing within 20mV of each rail at 10kΩ load - enabling full dynamic range utilization in 3.3V or lower systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 5.5MHz - supports stable closed-loop gain up to 10× at 550kHz or unity-gain buffer operation at full bandwidth. |
| Input Voltage Noise Density | 7.5nV/√Hz at 1kHz - enables high-fidelity amplification of microvolt-level sensor signals without significant noise contribution. |
| Input Bias Current | ±0.2pA (typ) - preserves signal integrity in high-impedance photodiode or piezoelectric sensor nodes. |
| Offset Voltage | 1mV (max) - ensures ≤0.1% gain error in 1V full-scale precision measurement paths. |
| Supply Voltage Range | 2.2V to 5.5V - compatible with Li-ion, coin-cell, and regulated 3.3V/2.5V rails without external LDO. |
| Quiescent Current | 0.76mA/ch (typ) - allows continuous operation in always-on sensor nodes with multi-year battery life. |
| Rail-to-Rail Output | Swings within 20mV of V+ and V− at 10kΩ - maximizes usable output voltage range in single-supply configurations. |
Pinout & Package
SOT-23-5 package (DBV) with 5-pin configuration, 1.6mm × 2.9mm footprint, and moisture sensitivity level MSL-2-260°C-1 year. Thermal pad not present; die attach to V− recommended per TI layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting Input | High-impedance CMOS node; accepts differential input signals or feedback network connection. |
| 2 (IN+) | Non-Inverting Input | High-impedance CMOS node; connects to reference voltage or sensor signal source. |
| 3 (V−) | Negative Supply Rail | Ground reference for single-supply operation; thermal die connection point per datasheet recommendation. |
| 4 (OUT) | Amplifier Output | Capable of driving ≥10kΩ loads rail-to-rail; supports direct connection to ADC inputs or active filters. |
| 5 (V+) | Positive Supply Rail | Accepts 2.2V–5.5V; requires 0.1µF bypass capacitor placed adjacent to pin per layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| EMI Input Filtering | Integrated low-pass filter (–3dB at ~75MHz) reduces susceptibility to RF interference in noisy industrial or automotive environments. |
| Unity-Gain Stability | No external compensation required - simplifies design of buffers, followers, and gain-of-one signal conditioning stages. |
| Low Quiescent Current | 0.76mA typical per channel - enables integration into power-constrained IoT edge nodes without compromising bandwidth. |
| Rail-to-Rail Output | Delivers full output swing (within 20mV of rails) at 10kΩ - eliminates need for level-shifting circuitry in 3.3V systems. |
| Wide Temperature Range | Specified from –40°C to +125°C - suitable for under-hood automotive sensors and industrial process monitoring. |
Applications
| Photodiode Preamplifier | Piezoelectric Sensor Preamplifier |
|---|---|
Use Scenario: Amplifying weak current from reverse-biased photodiodes in optical smoke detectors or ambient light sensors. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photocurrent to voltage with minimal input loading. Use Value: 0.2pA input bias current prevents signal loss in >1GΩ feedback networks; 7.5nV/√Hz noise preserves SNR in sub-µA signal ranges. |
Use Scenario: Conditioning high-impedance charge output from vibration or pressure piezoelectric elements. IC Role / Device Role / Timing Role: Charge amplifier with ultra-high input impedance to avoid signal decay during integration. Use Value: Femtoampere input bias minimizes discharge time constant errors; 5.5MHz GBW supports kHz-range mechanical resonance capture. |
| Sensor Signal Conditioning | ADC Driver for Precision Data Acquisition |
Use Scenario: Buffering and scaling millivolt-level outputs from RTDs, thermocouples, or strain gauges. IC Role / Device Role / Timing Role: Precision gain stage with low offset drift and high CMRR for rejecting common-mode noise. Use Value: 1mV max offset and 90dB CMRR ensure <0.01% linearity error in 16-bit measurement systems over temperature. |
Use Scenario: Driving the input of SAR ADCs like ADS8327 in portable medical or test equipment. IC Role / Device Role / Timing Role: Unity-gain buffer isolating ADC input from source impedance and providing fast settling. Use Value: 1.6µs 0.1% settling time and rail-to-rail output enable full-scale sampling at 250kSPS without droop or distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture; 0.1µV/°C offset drift vs. OPA377AIDBVR's 0.32mV/°C; 350kHz GBW vs. 5.5MHz. | Better dc accuracy for long-term stability in weigh scales; lower bandwidth limits audio or fast sensor use. | Select OPA333AIDBVR when offset drift dominates error budget; choose OPA377AIDBVR for higher-speed signal chains requiring >1MHz bandwidth. |
| OPA388IDBVR | Higher performance: 10MHz GBW, 4.2nV/√Hz noise, 0.5pA IB; 1.9mA IQ vs. 0.76mA. | Enables wider bandwidth active filters and lower-noise EEG front-ends but increases power draw. | Choose OPA388IDBVR when 10MHz bandwidth and sub-5nV/√Hz noise justify 2.5× higher quiescent current; retain OPA377AIDBVR for optimal power-bandwidth trade-off. |
Compared with OPA333AIDBVR and OPA388IDBVR, the OPA377AIDBVR delivers the best balance of 5.5MHz bandwidth, ultra-low input bias current, and sub-1mA quiescent power - making it ideal for battery-operated precision analog front-ends where speed, noise, and power must coexist.
Availability
OPA377AIDBVR is available at Aetrix Electronics and suitable for photodiode preamplifiers, piezoelectric sensor interfaces, and precision ADC driver circuits requiring stable component supply across industrial, medical, and test equipment programs.
Supply support for OPA377AIDBVR 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 delivering analog and embedded processing solutions with emphasis on reliability, precision, and energy efficiency.
The OPA377 family was designed specifically for low-voltage, single-supply signal conditioning in battery-powered instrumentation, sensor modules, and portable medical devices - prioritizing low noise, ultra-low input current, and rail-to-rail operation.
FAQ
What is the maximum operating temperature range for the OPA377AIDBVR?
The OPA377AIDBVR is specified for continuous operation from –40°C to +125°C, meeting extended industrial and automotive under-hood requirements. This range is validated across all electrical parameters in the official TI SBOS504B datasheet, including offset voltage drift, gain-bandwidth, and quiescent current behavior.
Does the OPA377AIDBVR support rail-to-rail input voltage range?
No, the OPA377AIDBVR does not support rail-to-rail input. Its common-mode input voltage range extends from (V−) − 0.1V to (V+) − 1.3V - meaning it cannot accept signals within 1.3V of the positive rail. However, it does provide rail-to-rail output swing within 20mV of both supply rails at 10kΩ load.
Can the OPA377AIDBVR drive capacitive loads directly?
Yes, the OPA377AIDBVR can directly drive up to 250pF of pure capacitive load in unity-gain configuration without oscillation. For larger loads or resistive-capacitive combinations, TI recommends adding a 10Ω–20Ω series resistor at the output to preserve phase margin while maintaining DC accuracy.
What is the part marking for OPA377AIDBVR on the SOT-23-5 package?
The OPA377AIDBVR is marked "PAG" on the top surface of its SOT-23-5 (DBV) package, as confirmed in TI's official Package Option Addendum. This marking is consistent across all production lots and distinguishes it from other variants like OPA377AIDCKR (marked "PAF") in SC70-5.
Is the OPA377AIDBVR pin-compatible with other members of the OPA377 family?
Yes, the OPA377AIDBVR shares identical pinout (IN−, IN+, V−, OUT, V+) with the SC70-5 variant OPA377AIDCKR and SO-8 variant OPA377AID, enabling drop-in replacement across packages when board space and thermal constraints allow. All three use the same functional pin assignment per TI's PIN CONFIGURATIONS diagram.
OPA377AIDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 760µA
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA377AIDBVR FAQ
1.How can I place an order for OPA377AIDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA377AIDBVR 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 OPA377AIDBVR reliable?
The price and inventory of OPA377AIDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA377AIDBVR is usually 5 days.
3.What payment methods are accepted for OPA377AIDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA377AIDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA377AIDBVR?
OPA377AIDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA377AIDBVR 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 OPA377AIDBVR?
For technical support, including OPA377AIDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA377AIDBVR requirements.
6.How does Aetrix verify that OPA377AIDBVR is sourced from the original manufacturer or authorized distributors?
All OPA377AIDBVR 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 OPA377AIDBVR meets industry standards.
7.What is the process for return or replacement of OPA377AIDBVR?
All OPA377AIDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA377AIDBVR, 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 OPA377AIDBVR part is unused and in its original packaging.
Return procedure for OPA377AIDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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