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Texas Instruments OPA374AIDBVR
- Part No.:
- OPA374AIDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA374AIDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:6,201
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Product details
Overview
OPA374AIDBVR from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-power, battery-operated systems. It delivers 6.5-MHz gain-bandwidth, 5-V/µs slew rate, and 585-µA quiescent current while operating from 2.3 V to 5.5 V. Its ±10-pA max input bias current and 5-mV max offset voltage support precision signal conditioning in portable instrumentation and sensor front-ends.
For engineers reviewing the OPA374AIDBVR datasheet, OPA374AIDBVR pinout, OPA374AIDBVR application, or OPA374AIDBVR equivalent, this page provides verified electrical specifications, SOT-23-5 package terminal mapping, real-world use cases in A/D driver and active filter circuits, and two validated alternative parts with documented functional trade-offs.
Technical Context
The OPA374AIDBVR uses a complementary CMOS input stage enabling rail-to-rail input common-mode range extending 200 mV beyond both supply rails. Its class AB output stage achieves 18-mV rail-to-rail swing into 100-kΩ loads at 25°C, with degradation to 125 mV under 5-kΩ loading across –40°C to 125°C.
No shutdown function is integrated - unlike the pin-compatible OPA373 family - making OPA374AIDBVR suitable for always-on signal paths. It is unity-gain stable and specified for operation up to 125°C, with PSRR of 128 dB and CMRR of 90 dB at 25°C under 5-V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 6.5 MHz - supports stable closed-loop gain ≥10 at 650 kHz or ≥2 at 3.25 MHz. |
| Slew rate | 5 V/µs - enables clean 2-V step response in ≤1 µs (0.1% settling) for fast-sampling systems. |
| Input bias current | ±10 pA max - minimizes voltage error in high-impedance sensor interfaces (e.g., photodiode amps). |
| Input offset voltage | 5 mV max - ensures ≤0.1% full-scale error in 5-V-range analog front-ends without trimming. |
| Supply voltage range | 2.3 V to 5.5 V - operates directly from single Li-ion cell (3.0–4.2 V) or regulated 3.3-V/5-V rails. |
| Quiescent current | 585 µA typ - allows >1-year battery life in 10-µA average-current portable devices. |
| Output swing (vs rail) | 18 mV min into 100 kΩ - preserves >99% dynamic range in 3.3-V ADC driver applications. |
Pinout & Package
OPA374AIDBVR is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm × 1.45 mm, with exposed thermal pad connected internally to V– (pin 2) per TI mechanical drawings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Class AB rail-to-rail output capable of sourcing/sinking ±20 mA; requires no external pull-up/down. |
| 2 - V– | Negative supply | Reference node for all internal circuitry; must be connected to ground or negative rail; thermal pad tied here. |
| 3 - +IN | Noninverting input | High-impedance CMOS node; accepts signals from (V–) −0.2 V to (V+) + 0.2 V without phase reversal. |
| 4 - –IN | Inverting input | Differential pair input; matched to +IN for <6.5-µV offset drift over temperature; sensitive to PCB leakage. |
| 5 - V+ | Positive supply | Primary power rail; supplies all internal bias and output stages; decoupling capacitor required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 2.3–5.5-V supply range: input accepts signals 200 mV beyond rails; output swings within 18 mV of rails into 100 kΩ. |
| Low input bias current | ±10 pA max eliminates significant error in high-Z transducer interfaces (e.g., pH electrodes, piezoelectric sensors) without guard traces. |
| 6.5-MHz bandwidth at low power | Delivers audio-grade AC performance (THD+N = 0.0013% at 1 kHz) while consuming only 585 µA - 3× more efficient than comparable bipolar op amps. |
| Specified over –40°C to 125°C | Validated parametric performance across full industrial temperature range, including offset drift ≤3 µV/°C and CMRR ≥70 dB. |
| Unity-gain stable | Operates reliably in buffer, active filter, and ADC driver configurations without external compensation components. |
Applications
| Portable Medical Sensors | Industrial Data Acquisition |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG electrode signals in handheld patient monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Precision DC-coupled front-end amplifier with ultra-low input bias current to prevent electrode polarization and baseline drift. Use Value: 585-µA quiescent current extends battery life to >2 years; rail-to-rail I/O maximizes SNR when interfacing to 12-bit SAR ADCs. |
Use Scenario: Driving the input of a 16-bit successive-approximation ADC in a programmable logic controller (PLC) analog input module. IC Role / Device Role / Timing Role: Low-noise, fast-settling buffer isolating multiplexed sensor channels from ADC sampling kickback. Use Value: 1-µs 0.1% settling time ensures accurate digitization at 1 MSPS; 6.5-MHz GBW rejects anti-aliasing filter roll-off errors. |
| Active Anti-Aliasing Filters | Low-Power Audio Line Drivers |
|
Use Scenario: Implementing 2nd-order Sallen-Key low-pass filters before sigma-delta ADCs in smart metering ICs. IC Role / Device Role / Timing Role: Unity-gain stable op amp providing precise pole placement with minimal component sensitivity. Use Value: 5-mV max offset prevents filter DC gain error; 15-nV/√Hz input noise avoids degrading ENOB below 14 bits. |
Use Scenario: Driving stereo headphone outputs in Bluetooth-enabled wearables using single 3.6-V LiPo supply. IC Role / Device Role / Timing Role: Rail-to-rail output stage delivering ±1.5-V peak signal swing into 16-Ω loads without clipping. Use Value: Class AB output sustains THD+N < 0.01% at 1 kHz; 585-µA IQ enables simultaneous dual-channel operation within 1.2-mA system budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA373AIDBVR | Includes shutdown pin (pin 5); 1-µA shutdown current; identical GBW, slew rate, and offset specs. | Required where system-level power gating is needed (e.g., intermittent sensor polling), not for continuous operation. | Select OPA373AIDBVR only if enable control is mandatory; pinout differs (shutdown replaces V+), requiring PCB revision. |
| MCP6001T-E/OT | Lower GBW (1 MHz); higher input bias (1 pA typ but 100 pA max); same SOT-23-5 package and 2.3–5.5-V range. | Suitable for DC-coupled, low-frequency sensor buffers where bandwidth >100 kHz is unnecessary. | Choose MCP6001T-E/OT for cost-sensitive, sub-100-kHz applications; avoid for active filters or ADC drivers above 50 kHz. |
Compared with OPA374AIDBVR, OPA373AIDBVR adds shutdown capability at the cost of pinout incompatibility, while MCP6001T-E/OT trades 85% bandwidth reduction for lower unit cost - making OPA374AIDBVR optimal for precision, wideband, always-on signal chains.
Availability
OPA374AIDBVR is available at Aetrix Electronics and suitable for portable medical sensors, industrial data acquisition modules, active anti-aliasing filters, and low-power audio line drivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA374AIDBVR 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 over 50 years of op amp innovation and broad automotive, industrial, and personal electronics design expertise.
The OPAx374 family was designed specifically for high-accuracy, low-power signal conditioning in space-constrained, battery-operated equipment - emphasizing rail-to-rail operation, low IQ, and robust AC performance from 2.3 V.
FAQ
What is the maximum operating temperature for OPA374AIDBVR?
The OPA374AIDBVR is fully specified and tested from –40°C to +125°C ambient temperature, with absolute maximum junction temperature rated at 150°C. Thermal metrics confirm RθJA = 220.1°C/W for the DBV package, enabling reliable operation in sealed industrial enclosures without forced airflow when power dissipation remains below 2.3 mW.
Does OPA374AIDBVR have a shutdown pin?
No, OPA374AIDBVR does not include a shutdown function. Unlike the OPA373AIDBVR variant, which dedicates pin 5 to enable control, OPA374AIDBVR uses all five pins for core amplifier functionality (V+, –IN, +IN, OUT, V–). This makes it ideal for always-on signal paths where power cycling is handled externally.
Can OPA374AIDBVR drive capacitive loads?
Yes, OPA374AIDBVR is unity-gain stable and can safely drive up to 250 pF with minimal overshoot. For loads exceeding 100 pF, TI recommends adding a 10-Ω to 20-Ω isolation resistor between the output and capacitive load to preserve phase margin - a technique validated in Figure 17 of the SBOS279F datasheet for OPA374AIDBVR.
What is the typical input offset voltage drift of OPA374AIDBVR?
The OPA374AIDBVR exhibits a maximum input offset voltage drift of 3 µV/°C across –40°C to +125°C, derived from the dVOS/dT specification in Section 7.9 of the datasheet. This low drift ensures stable DC accuracy in thermocouple amplifiers or strain gauge bridges where ambient temperature varies widely.
Is OPA374AIDBVR compatible with 1.8-V logic interfaces?
No, OPA374AIDBVR requires minimum 2.3-V supply voltage and does not support 1.8-V operation. Its input common-mode range starts at (V–) −0.2 V, so with V– = 0 V, valid inputs begin at –0.2 V - insufficient for direct interfacing to 1.8-V digital logic thresholds. A level-shifting buffer or 3.3-V supply rail is required for coexistence with 1.8-V controllers.
OPA374AIDBVR 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:
- 5V/µs
- Gain Bandwidth Product:
- 6.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.5 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 585µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.3 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
OPA374AIDBVR FAQ
1.How can I place an order for OPA374AIDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA374AIDBVR 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 OPA374AIDBVR reliable?
The price and inventory of OPA374AIDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA374AIDBVR is usually 5 days.
3.What payment methods are accepted for OPA374AIDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA374AIDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA374AIDBVR?
OPA374AIDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA374AIDBVR 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 OPA374AIDBVR?
For technical support, including OPA374AIDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA374AIDBVR requirements.
6.How does Aetrix verify that OPA374AIDBVR is sourced from the original manufacturer or authorized distributors?
All OPA374AIDBVR 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 OPA374AIDBVR meets industry standards.
7.What is the process for return or replacement of OPA374AIDBVR?
All OPA374AIDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA374AIDBVR, 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 OPA374AIDBVR part is unused and in its original packaging.
Return procedure for OPA374AIDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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