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Texas Instruments OPA374AIDBVT
- Part No.:
- OPA374AIDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA374AIDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:242
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Product details
Overview
OPA374AIDBVT 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 - enabling high-precision signal conditioning in portable medical sensors and handheld test equipment.
For engineers reviewing the OPA374AIDBVT datasheet, OPA374AIDBVT pinout, OPA374AIDBVT application, or OPA374AIDBVT equivalent, key selection criteria include its 5 mV max input offset voltage, 10 pA max input bias current, rail-to-rail swing within 25 mV of rails at 5 kΩ load, operation up to 125°C, and 5-pin SOT-23 package compatibility with space-constrained PCB layouts.
Technical Context
The OPA374AIDBVT uses a complementary CMOS input stage enabling rail-to-rail input common-mode range from (V−) −0.2 V to (V+) + 0.2 V - critical for single-supply signal acquisition near supply rails. Its class AB output stage supports rail-to-rail output swing down to 25 mV from rails under 5 kΩ load, preserving dynamic range in low-voltage systems.
No shutdown function is integrated - distinguishing it from the pin-compatible OPA373 family. It is unity-gain stable and specified across −40°C to +125°C, with electrical characteristics validated at 2.7 V to 5.5 V supply, including 94 dB open-loop gain and 80 dB CMRR over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 6.5 MHz - supports stable closed-loop operation up to ~500 kHz at G = +10 without phase margin degradation |
| Slew rate | 5 V/µs - enables accurate reproduction of 1-Vpp signals up to ~800 kHz before slew-induced distortion |
| Input offset voltage | 5 mV (max) - limits DC error to ≤0.5% of full-scale in 1-V reference buffer applications |
| Quiescent current | 585 µA (typ) - allows continuous operation >1 year on a single CR2032 coin cell in always-on sensor front-ends |
| Supply voltage range | 2.3 V to 5.5 V - interoperable with Li-ion, 3.3 V logic, and dual-supply legacy interfaces without level-shifting |
| Input bias current | 10 pA (max) - ensures <1 mV error across 100 MΩ source impedances in high-Z pH or photodiode circuits |
| Output voltage swing | Within 25 mV of rails (5 kΩ load) - maximizes usable ADC input range in 3.3 V systems with 12-bit+ resolution |
Pinout & Package
OPA374AIDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm × 1.15 mm, with exposed thermal pad connected internally to V− for improved power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified signal node; capable of sourcing/sinking ±20 mA; requires local 0.1 µF bypass capacitor to V− |
| 2 (V−) | Negative supply | Lowest potential rail; must be connected to ground or negative supply; thermal pad tied here for thermal relief |
| 3 (+IN) | Noninverting input | High-impedance node (10¹³ Ω); accepts signals from (V−) −0.2 V to (V+) + 0.2 V without phase inversion |
| 4 (−IN) | Inverting input | High-impedance node; used for feedback networks; matched to +IN for optimal CMRR performance |
| 5 (V+) | Positive supply | Highest potential rail; accepts 2.3 V to 5.5 V; decoupling to V− essential for PSRR >100 dB at 1 kHz |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Common-mode range extends 200 mV beyond both supply rails - eliminates need for level-shifting in single-supply data loggers |
| Rail-to-rail output | Swings to within 25 mV of V+ and V− at 5 kΩ - preserves >95% of 3.3 V ADC full-scale range |
| Ultra-low input bias current | ≤10 pA max - enables direct connection to high-impedance sources like piezoelectric sensors without signal attenuation |
| Wide temperature specification | Guaranteed operation from −40°C to +125°C - suitable for under-hood automotive cabin air quality modules |
| Low-noise performance | 15 nV/√Hz input voltage noise density at 10 kHz - maintains SNR >80 dB in audio preamp stages |
Applications
| Portable ECG Front-End | Battery Voltage Monitor |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with high CMRR and low input current. Use Value: 10 pA max IB prevents electrode polarization drift; 5 mV VOS ensures baseline stability <±0.5% over 24-hour wear. |
Use Scenario: Scaling and buffering lithium-ion cell voltage for ADC input in smart battery packs. IC Role / Device Role / Timing Role: Rail-to-rail unity-gain buffer isolating battery voltage from ADC input capacitance. Use Value: 2.3 V min supply allows operation down to 2.5 V cell voltage; 25 mV rail swing preserves 12-bit measurement accuracy. |
| Handheld Gas Sensor Signal Chain | Industrial Temperature Transmitter |
Use Scenario: Conditioning low-current outputs from electrochemical CO sensors in portable safety meters. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable gain and low input bias. Use Value: 10 pA IB minimizes dark-current error in nA-range sensor currents; 6.5 MHz GBW supports fast response to gas concentration changes. |
Use Scenario: Buffering and scaling RTD bridge outputs in DIN-rail mounted process controllers. IC Role / Device Role / Timing Role: Precision voltage follower driving long twisted-pair cables to PLC analog inputs. Use Value: 125°C rating enables placement near hot industrial enclosures; 80 dB CMRR rejects 50/60 Hz pickup in noisy factory environments. |
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; 0.02 µV/°C offset drift vs. OPA374AIDBVT's 3 µV/°C; 17 µA IQ vs. 585 µA | Better for DC-critical applications (e.g., precision weigh scales); unsuitable for bandwidth-sensitive audio or fast sensor response | Select OPA333AIDBVR only when sub-µV offset stability over temperature is mandatory and bandwidth ≤100 kHz suffices |
| MCP6001T-E/OT | Lower cost; 1 MHz GBW; 100 µA IQ; 2 mV VOS max; same 5-pin SOT-23 footprint | Targeted at cost-sensitive, low-speed applications (e.g., simple comparators, LED drivers); lacks rail-to-rail input | Choose MCP6001T-E/OT for non-critical signal paths where 6.5 MHz bandwidth and extended input range are unnecessary |
Compared with OPA374AIDBVT, OPA333AIDBVR trades bandwidth and power for ultra-low drift, while MCP6001T-E/OT sacrifices speed and rail-to-rail input to reduce BOM cost - making OPA374AIDBVT the balanced choice for portable, wide-dynamic-range analog front-ends requiring both precision and speed.
Availability
OPA374AIDBVT is available at Aetrix Electronics and suitable for portable medical devices, battery management systems, and industrial sensor transmitters requiring stable component supply with guaranteed long-term manufacturability.
Supply support for OPA374AIDBVT 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets.
The OPAx374 family was engineered for high-speed, low-power signal conditioning in space-constrained, single-supply systems - emphasizing rail-to-rail operation, low input bias, and robust thermal performance from −40°C to +125°C.
FAQ
What is the maximum operating temperature for OPA374AIDBVT?
The OPA374AIDBVT 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, supporting reliable operation in sealed enclosures or under-hood automotive environments when PCB copper area is optimized per TI layout guidelines.
Does OPA374AIDBVT have a shutdown pin?
No, OPA374AIDBVT does not include a shutdown function. This distinguishes it from the pin-compatible OPA373 family (e.g., OPA373AIDBVT), which integrates an enable pin. The OPA374AIDBVT is designed for continuous-operation applications where ultra-low quiescent current (585 µA) and simplicity outweigh the need for power gating.
Can OPA374AIDBVT drive capacitive loads?
Yes, OPA374AIDBVT is unity-gain stable and can drive up to ~250 pF with minimal overshoot. For larger capacitive loads (e.g., >500 pF), TI recommends adding a 10–20 Ω isolation resistor between the output and load capacitance to maintain phase margin above 45°, as verified in Figure 17 of the SBOS279F datasheet.
What is the input common-mode voltage range of OPA374AIDBVT?
The input common-mode voltage range of OPA374AIDBVT extends from (V−) −0.2 V to (V+) + 0.2 V - enabling true rail-to-rail input operation. This is achieved via a complementary CMOS input stage. Operation outside this range (but within absolute max ratings of −0.5 V to V+ + 0.5 V) is safe but may degrade PSRR, CMRR, and THD.
Is OPA374AIDBVT pin-compatible with other amplifiers in the OPAx374 family?
Yes, OPA374AIDBVT shares identical pinout with all 5-pin SOT-23 variants in the OPAx374 family, including OPA2374AIDCKR (dual, 8-pin SOT-23) and OPA4374APWR (quad, 14-pin TSSOP) - though channel count and package differ. Pin-for-pin compatibility applies only within same package type; SOIC-8 variants use different pin numbering.
OPA374AIDBVT 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
OPA374AIDBVT FAQ
1.How can I place an order for OPA374AIDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA374AIDBVT 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 OPA374AIDBVT reliable?
The price and inventory of OPA374AIDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA374AIDBVT is usually 5 days.
3.What payment methods are accepted for OPA374AIDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA374AIDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA374AIDBVT?
OPA374AIDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA374AIDBVT 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 OPA374AIDBVT?
For technical support, including OPA374AIDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA374AIDBVT requirements.
6.How does Aetrix verify that OPA374AIDBVT is sourced from the original manufacturer or authorized distributors?
All OPA374AIDBVT 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 OPA374AIDBVT meets industry standards.
7.What is the process for return or replacement of OPA374AIDBVT?
All OPA374AIDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA374AIDBVT, 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 OPA374AIDBVT part is unused and in its original packaging.
Return procedure for OPA374AIDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA374AIDBVT Tags
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