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Texas Instruments OPA4374AIPWT
- Part No.:
- OPA4374AIPWT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4374AIPWT.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,093
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Product details
Overview
OPA4374AIPWT from Texas Instruments is a quad rail-to-rail input/output CMOS operational amplifier optimized for low-power, single-supply operation (2.3 V to 5.5 V). It delivers 6.5 MHz gain-bandwidth, 5 V/µs slew rate, and 585 µA quiescent current per channel, with input offset voltage ≤5 mV (max) and input bias current ≤10 pA (max). It is widely used in battery-powered sensor signal conditioning and portable A/D converter driving circuits.
For engineers reviewing the OPA4374AIPWT datasheet, OPA4374AIPWT pinout, OPA4374AIPWT application, or OPA4374AIPWT equivalent, key selection criteria include its rail-to-rail I/O capability at 2.3 V supply, 125°C temperature rating, TSSOP-14 package footprint, and verified performance in active filter and precision analog front-end designs.
Technical Context
The OPA4374AIPWT employs 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 swing-within 18 mV of rails under light load (100 kΩ) and within 125 mV under 5 kΩ load across –40°C to 125°C.
It operates without shutdown functionality (unlike OPAx373 family), features 94–110 dB open-loop gain at 25°C, 80 dB minimum CMRR over full temperature range, and achieves 0.1% settling in 1 µs with 2-V step at G = +1. Input voltage noise is 15 nV/√Hz at 10 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 6.5 MHz - enables stable unity-gain operation and supports >100 kHz closed-loop bandwidth in precision filtering applications |
| Slew rate | 5 V/µs - supports fast transient response in data acquisition front-ends driving SAR ADCs |
| Input offset voltage | ≤5 mV (max) - ensures <0.1% error in 5 V full-scale sensor amplification without trimming |
| Quiescent current | 585–750 µA per channel - enables four-channel signal conditioning in sub-3 mA total system analog budget |
| Rail-to-rail I/O | Input: (V−) −0.2 V to (V+) + 0.2 V; Output: within 18 mV of rails (100 kΩ) - maximizes dynamic range in 3.3 V or lower single-supply systems |
| Operating temperature | –40°C to +125°C - qualified for automotive cabin and industrial control ambient environments |
| Supply voltage range | 2.3 V to 5.5 V - compatible with Li-ion, 3.3 V, and 5 V rails without level-shifting |
Pinout & Package
OPA4374AIPWT is packaged in a 14-pin TSSOP (PW) with 5.00 mm × 4.40 mm body size and exposed thermal pad (must be connected to V−). Pin numbering follows standard JEDEC TSSOP top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; requires local 100 nF bypass near pin |
| 2 | –IN A | Inverting input, channel A - connects to feedback network or differential sensor node |
| 3 | +IN A | Noninverting input, channel A - high-impedance node; sensitive to PCB leakage and EMI |
| 4 | V+ | Positive supply - must be decoupled with ≥0.1 µF ceramic capacitor to ground |
| 5 | +IN B | Noninverting input, channel B - electrically isolated from other channels; shares no internal routing |
| 6 | –IN B | Inverting input, channel B - independent input path; supports dual-sensor differential pairs |
| 7 | OUT B | Amplifier B output - fully independent output stage; no crosstalk with OUT A/C/D |
| 8 | OUT C | Amplifier C output - identical drive strength and noise performance as OUT A/B/D |
| 9 | –IN C | Inverting input, channel C - supports multi-channel synchronous sampling architectures |
| 10 | +IN C | Noninverting input, channel C - matched input capacitance and bias current to other channels |
| 11 | V− | Negative supply - reference for all inputs/outputs; thermal pad must connect here for thermal integrity |
| 12 | +IN D | Noninverting input, channel D - enables four independent analog paths on single IC |
| 13 | –IN D | Inverting input, channel D - supports quad-channel instrumentation amplifier configurations |
| 14 | OUT D | Amplifier D output - completes full quad functional set; pin-compatible with OPA4374 variants |
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 low-voltage sensor interfaces |
| Ultra-low input bias current | ≤10 pA (max) - preserves accuracy in high-impedance pH, photodiode, or piezoelectric sensor circuits |
| Low input offset drift | 3 µV/°C (max) - maintains calibration stability across automotive and industrial temperature ranges |
| High PSRR and CMRR | ≥128 dB PSRR at 1 kHz; ≥80 dB CMRR over –40°C to 125°C - rejects power rail noise and common-mode interference |
| Unity-gain stable | No external compensation required - simplifies layout and reduces BOM count in buffer and gain stages |
| Specified at 125°C | Full electrical performance guaranteed up to junction temperature of 125°C - supports under-hood and motor-control use |
Applications
| Portable Sensor Signal Conditioning | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Amplifying low-level outputs from MEMS accelerometers and thermistors in handheld medical devices. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous gain, filtering, and buffering for four analog sensor channels. Use Value: 585 µA/channel quiescent current enables >100-hour battery life in coin-cell powered units; rail-to-rail I/O maximizes SNR at 3.0 V supply. |
Use Scenario: Driving successive-approximation register (SAR) ADC inputs in portable environmental monitors. IC Role / Device Role / Timing Role: Acts as precision buffer and anti-aliasing filter driver with 1 µs 0.1% settling time. Use Value: 6.5 MHz GBW and 5 V/µs slew rate ensure accurate sampling of 100 kHz sensor waveforms without distortion. |
| Active Low-Pass Filtering | Industrial Analog Front-End |
Use Scenario: Implementing 4th-order Sallen-Key filters for vibration analysis in predictive maintenance sensors. IC Role / Device Role / Timing Role: Two OPA4374AIPWT channels configure as dual 2-pole stages; remaining two serve as buffers. Use Value: Low THD+N (0.0013%) and high open-loop gain (94 dB) preserve filter Q-factor and stopband attenuation. |
Use Scenario: Signal conditioning for 4–20 mA loop receivers and RTD interfaces in PLC I/O modules. IC Role / Device Role / Timing Role: Provides isolated gain, offset correction, and output buffering across four independent channels. Use Value: 125°C rating and 80 dB CMRR enable reliable operation in hot, electrically noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4377AIPW | Lower input offset (150 µV typ vs 1 mV typ), higher quiescent current (760 µA/ch), same GBW/slew rate | Better DC precision but higher power; not rated for 125°C operation (only 105°C max) | Select for high-accuracy, moderate-temp applications where offset drift matters more than temperature range |
| LMV434QMA/NOPB | Automotive AEC-Q100 Grade 1 (–40°C to 125°C), same pinout, slightly lower GBW (5.5 MHz), higher input bias (20 pA) | Qualified for automotive use; lacks extended common-mode range beyond rails | Select when automotive qualification and supply-chain traceability are mandatory, and rail extension is not required |
Compared with OPA4374AIPWT, OPA4377AIPW trades higher power for improved DC accuracy, while LMV434QMA/NOPB adds AEC-Q100 compliance at the cost of input stage flexibility and noise performance-making OPA4374AIPWT optimal for industrial and portable designs demanding rail extension, low IB, and full 125°C operation.
Availability
OPA4374AIPWT is available at Aetrix Electronics and suitable for portable equipment, battery-powered data loggers, and industrial analog front-ends requiring stable component supply and long-term manufacturability.
Supply support for OPA4374AIPWT 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 and low-power signal chain design.
The OPAx374 family was designed specifically for battery-constrained, wide-temperature applications requiring rail-to-rail I/O, low IB, and robust AC performance-targeting portable instrumentation, sensor hubs, and industrial control analog subsystems.
FAQ
What is the maximum operating supply voltage for OPA4374AIPWT?
The absolute maximum supply voltage for OPA4374AIPWT is 7 V, but the recommended operating range is 2.3 V to 5.5 V. Operation above 5.5 V risks permanent damage and invalidates parametric guarantees. At 5.5 V, OPA4374AIPWT maintains full rail-to-rail input/output swing and specified 6.5 MHz bandwidth.
Does OPA4374AIPWT have a shutdown pin?
No, OPA4374AIPWT does not include a shutdown function. This distinguishes it from the OPAx373 family (e.g., OPA4373), which integrates enable pins per channel. The OPA4374AIPWT remains continuously active when powered; power cycling or supply gating is required for standby mode.
Can OPA4374AIPWT drive capacitive loads reliably?
Yes, OPA4374AIPWT is unity-gain stable and can drive up to ~250 pF with minimal overshoot. For loads >100 pF, adding a 10–20 Ω series resistor between output and capacitive load improves phase margin. This behavior is documented in Figure 17 of the SBOS279F datasheet.
What is the thermal pad connection requirement for OPA4374AIPWT in TSSOP-14?
The exposed thermal pad on the underside of the OPA4374AIPWT TSSOP-14 package must be soldered to a V− (ground) copper plane. TI specifies this connection for thermal dissipation and electrical stability. Leaving the pad floating or connecting it to another net degrades thermal resistance (RθJB increases by >20°C/W) and may cause oscillation.
How does input offset voltage drift behave over temperature for OPA4374AIPWT?
OPA4374AIPWT has a maximum input offset drift of 3 µV/°C over –40°C to +125°C. This low drift ensures offset error remains below ±0.3 mV across the full industrial temperature range, supporting uncalibrated 12-bit accuracy in 5 V full-scale systems without trimming.
OPA4374AIPWT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- 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 (x4 Channels)
- Current - Output / Channel:
- 5 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
OPA4374AIPWT FAQ
1.How can I place an order for OPA4374AIPWT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4374AIPWT 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 OPA4374AIPWT reliable?
The price and inventory of OPA4374AIPWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4374AIPWT is usually 5 days.
3.What payment methods are accepted for OPA4374AIPWT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4374AIPWT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4374AIPWT?
OPA4374AIPWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4374AIPWT 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 OPA4374AIPWT?
For technical support, including OPA4374AIPWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4374AIPWT requirements.
6.How does Aetrix verify that OPA4374AIPWT is sourced from the original manufacturer or authorized distributors?
All OPA4374AIPWT 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 OPA4374AIPWT meets industry standards.
7.What is the process for return or replacement of OPA4374AIPWT?
All OPA4374AIPWT units undergo pre-shipment inspection (PSI). If there is an issue with OPA4374AIPWT, 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 OPA4374AIPWT part is unused and in its original packaging.
Return procedure for OPA4374AIPWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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