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Texas Instruments OPA374AIDBVRG4
- Part No.:
- OPA374AIDBVRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA374AIDBVRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,894
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Product details
Overview
OPA374AIDBVRG4 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 medical sensors and handheld test equipment.
For engineers reviewing the OPA374AIDBVRG4 datasheet, OPA374AIDBVRG4 pinout, OPA374AIDBVRG4 application, or OPA374AIDBVRG4 equivalent, key selection criteria include its 5-pin SOT-23 package, absence of shutdown functionality (distinguishing it from OPA373), rail-to-rail I/O swing within 25 mV of rails, and guaranteed operation up to +125°C for automotive cabin sensor interfaces.
Technical Context
The OPA374AIDBVRG4 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 supports rail-to-rail output swing-within 18 mV at light loads (100 kΩ) and 100 mV at moderate loads (5 kΩ)-while maintaining >94 dB open-loop gain across temperature.
No internal shutdown logic is present; the device operates continuously when powered. Electrical specifications are fully characterized from –40°C to +125°C, with input offset drift limited to 3 µV/°C and PSRR/CMRR exceeding 80 dB over the full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 6.5 MHz - enables stable unity-gain buffer or 10× amplification up to 650 kHz |
| Slew rate | 5 V/µs - supports clean 1-VPP, 500-kHz sine wave output without distortion |
| Quiescent current | 585 µA - allows continuous operation in coin-cell-powered devices for >1 year |
| Input offset voltage | 5 mV max - ensures ≤0.1% error in 5-V full-scale 12-bit ADC front-end designs |
| Rail-to-rail output swing | Within 25 mV of rails - maximizes dynamic range in 3.3-V single-supply data acquisition |
| Operating supply range | 2.3 V to 5.5 V - compatible with Li-ion, Li-Po, and dual-AA battery systems |
| Temperature range | –40°C to +125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
OPA374AIDBVRG4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm × 1.45 mm, with exposed die pad electrically connected to V– for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified signal source; drives capacitive loads up to 250 pF in unity-gain configuration |
| 2 - V– | Negative supply | Ground reference or negative rail; must be connected to PCB ground plane for thermal stability |
| 3 - +IN | Noninverting input | High-impedance node (10¹³ Ω); accepts signals from high-Z sources like piezoelectric sensors |
| 4 - –IN | Inverting input | High-impedance node; used for feedback network connection in transimpedance or difference amplifier topologies |
| 5 - V+ | Positive supply | Primary power input; decoupling capacitor (0.1 µF) required within 2 mm for noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input | Common-mode range extends from (V–) – 0.2 V to (V+) + 0.2 V - eliminates level-shifting circuitry in low-voltage sensor interfaces |
| Low input bias current | ±10 pA max - minimizes voltage error across high-value feedback resistors (>1 MΩ) in precision integrators |
| Low noise performance | 15 nV/√Hz input voltage noise density at 10 kHz - preserves SNR in audio preamplifier stages |
| High PSRR/CMRR | ≥80 dB over –40°C to +125°C - rejects supply ripple and common-mode interference in noisy industrial environments |
| Unity-gain stable | No external compensation required - simplifies layout and reduces BOM count in buffer applications |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Amplifying microvolt-level ECG electrode signals in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with rail-to-rail input to capture baseline shifts. Use Value: 5-mV max offset and 3 µV/°C drift ensure <0.5% measurement error across body-temperature variations. | Use Scenario: Conditioning thermistor and humidity sensor outputs in field-deployed environmental nodes. IC Role / Device Role / Timing Role: Low-power signal conditioner driving SAR ADC inputs with minimal power overhead. Use Value: 585-µA quiescent current extends 2-year battery life on two AA cells while maintaining 12-bit linearity. |
| Active Filters for Audio | Driving A/D Converters |
Use Scenario: Implementing 2nd-order anti-aliasing filters in Bluetooth headset analog front-ends. IC Role / Device Role / Timing Role: Unity-gain stable filter stage with 6.5-MHz bandwidth supporting 24-bit/96-kHz audio paths. Use Value: 15-nV/√Hz noise density and 0.0013% THD+N preserve dynamic range above 105 dB. | Use Scenario: Buffering high-impedance pH probe outputs into 16-bit delta-sigma ADCs in lab analyzers. IC Role / Device Role / Timing Role: Rail-to-rail output driver ensuring full-scale utilization of ADC reference voltage. Use Value: Output swing within 25 mV of rails guarantees >99% effective resolution from 0–3.3 V ADC input range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA374AIDBVT | Tape-and-reel packaging variant; identical electrical specs and pinout | No functional difference; selected for automated SMT assembly vs. sample evaluation | Choose OPA374AIDBVT for volume production; OPA374AIDBVRG4 is same device in cut-tape format |
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher input bias current (1 pA typ but not max-specified), no guaranteed 125°C operation | Suitable for cost-sensitive consumer electronics but not automotive or extended-temperature industrial use | Select MCP6001T-E/OT only when 6.5-MHz bandwidth and +125°C rating are not required |
Compared with OPA374AIDBVRG4, OPA374AIDBVT offers identical performance in tape-and-reel form for pick-and-place lines, while MCP6001T-E/OT trades bandwidth and temperature range for lower unit cost in non-critical applications.
Availability
OPA374AIDBVRG4 is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, and active audio filters requiring stable component supply across automotive, industrial, and IoT design cycles.
Supply support for OPA374AIDBVRG4 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 deep expertise in precision amplifiers, power management, and signal chain technologies.
The OPAx374 family was designed specifically for low-power, rail-to-rail signal conditioning in space-constrained, battery-operated systems where wide supply range and high AC performance are essential.
FAQ
What is the maximum operating temperature for OPA374AIDBVRG4?
The OPA374AIDBVRG4 is fully specified and tested from –40°C to +125°C, with all electrical parameters guaranteed across this extended industrial temperature range. Thermal metrics such as RθJA = 220.1°C/W (for DBV package) confirm safe operation under continuous load at maximum ambient temperature when mounted on standard FR-4 PCBs with adequate copper area.
Does OPA374AIDBVRG4 include a shutdown feature?
No, OPA374AIDBVRG4 does not include a shutdown function. Unlike the pin-compatible OPA373 family, the OPA374 series operates continuously when powered. The absence of an enable pin simplifies circuit design for always-on applications such as sensor signal conditioning in battery-backed monitoring systems.
What is the input common-mode voltage range of OPA374AIDBVRG4?
The input common-mode voltage range of OPA374AIDBVRG4 extends from (V–) – 0.2 V to (V+) + 0.2 V, enabling true rail-to-rail input operation. This specification holds across the full –40°C to +125°C temperature range and allows direct interfacing with sensors whose output spans the entire supply rail, eliminating external level-shifting components.
Can OPA374AIDBVRG4 drive capacitive loads reliably?
Yes, OPA374AIDBVRG4 is unity-gain stable and can drive up to 250 pF of capacitive load directly. For loads exceeding 250 pF, a small isolation resistor (10–20 Ω) placed between the output and capacitive load restores phase margin. This capability supports direct connection to ADC input capacitors and long PCB traces in data acquisition systems.
What package type is used for OPA374AIDBVRG4?
OPA374AIDBVRG4 uses the 5-pin SOT-23 (DBV) package, measuring 2.90 mm × 1.60 mm × 1.45 mm with gull-wing leads. The package includes an exposed thermal pad on the underside that must be soldered to a PCB ground plane to achieve specified thermal performance and reliability.
OPA374AIDBVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
OPA374AIDBVRG4 FAQ
1.How can I place an order for OPA374AIDBVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA374AIDBVRG4 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 OPA374AIDBVRG4 reliable?
The price and inventory of OPA374AIDBVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA374AIDBVRG4 is usually 5 days.
3.What payment methods are accepted for OPA374AIDBVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA374AIDBVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA374AIDBVRG4?
OPA374AIDBVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA374AIDBVRG4 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 OPA374AIDBVRG4?
For technical support, including OPA374AIDBVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA374AIDBVRG4 requirements.
6.How does Aetrix verify that OPA374AIDBVRG4 is sourced from the original manufacturer or authorized distributors?
All OPA374AIDBVRG4 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 OPA374AIDBVRG4 meets industry standards.
7.What is the process for return or replacement of OPA374AIDBVRG4?
All OPA374AIDBVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA374AIDBVRG4, 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 OPA374AIDBVRG4 part is unused and in its original packaging.
Return procedure for OPA374AIDBVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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