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Texas Instruments OPA4374AIPWRG4
- Part No.:
- OPA4374AIPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4374AIPWRG4.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,541
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Product details
Overview
OPA4374AIPWRG4 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, 585-µA quiescent current per channel, and ±10-pA max input bias current - enabling precision signal conditioning in battery-powered portable instrumentation and sensor front-ends.
For engineers reviewing the OPA4374AIPWRG4 datasheet, OPA4374AIPWRG4 pinout, OPA4374AIPWRG4 application, or OPA4374AIPWRG4 equivalent, key selection criteria include rail-to-rail I/O swing (≤25 mV from rails), low offset (5 mV max), high CMRR (90 dB typ), operation up to 125°C, and TSSOP-14 packaging for space-constrained PCB layouts.
Technical Context
The OPA4374AIPWRG4 integrates four independent high-speed CMOS op amps sharing a common supply domain. Its complementary N/P-channel input stage enables rail-to-rail input operation with 200-mV beyond-rail common-mode range, while the Class AB output stage supports rail-to-rail output swing into 100-kΩ loads.
It operates without shutdown functionality (unlike OPAx373 family), features no internal enable pins, and is specified across –40°C to +125°C. Electrical performance - including 94-dB open-loop gain, 10-µV/√Hz input voltage noise at 10 kHz, and 0.0013% THD+N at 1 kHz - remains stable over its full supply and temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 6.5 MHz - supports stable unity-gain operation and closed-loop bandwidth up to ~6 MHz with minimal phase margin degradation. |
| Slew rate | 5 V/µs - enables accurate reproduction of fast 2-V step signals with ≤1.5 µs settling time to 0.01%. |
| Input bias current | ±10 pA max - minimizes voltage error in high-impedance sensor interfaces (e.g., photodiode transimpedance amps). |
| Input offset voltage | 5 mV max - ensures ≤5-mV DC error in precision DC-coupled gain stages without trimming. |
| Supply voltage range | 2.3 V to 5.5 V - compatible with single Li-ion, 3.3-V, and 5-V systems without level-shifting circuitry. |
| Output swing (vs rail) | 25 mV max (RL = 100 kΩ) - preserves >99% of dynamic range in 3.3-V ADC driver applications. |
| Quiescent current | 585 µA per channel - enables four-channel amplification in sub-3-mA total system power budgets. |
Pinout & Package
OPA4374AIPWRG4 is packaged in a 14-pin TSSOP (PW package), 5.00 mm × 4.40 mm body size, with exposed thermal pad on underside (to be connected to V– for optimal thermal performance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load; rail-to-rail swing capability supports direct connection to SAR ADC inputs. |
| 2 | –IN A | Inverting input, channel A - accepts feedback network for inverting configurations or differential sensing. |
| 3 | +IN A | Noninverting input, channel A - high-impedance node for sensor biasing or reference buffering. |
| 4 | V+ | Positive supply rail - must be decoupled with ≥0.1-µF ceramic capacitor near pin for stability. |
| 5 | +IN B | Noninverting input, channel B - electrically isolated from other channels; supports independent signal paths. |
| 6 | –IN B | Inverting input, channel B - shares no internal coupling with channel A; enables true multi-channel isolation. |
| 7 | OUT B | Amplifier B output - identical AC/DC specs to OUT A; usable for dual-sensor conditioning or signal splitting. |
| 8 | OUT C | Amplifier C output - fully independent; allows simultaneous processing of three analog signals on one IC. |
| 9 | –IN C | Inverting input, channel C - supports active filtering or programmable gain stages per channel. |
| 10 | +IN C | Noninverting input, channel C - referenced to same V– as all channels; maintains common-mode integrity. |
| 11 | V– | Negative supply rail - connects to ground or negative rail; thermal pad must be soldered to PCB ground plane. |
| 12 | +IN D | Noninverting input, channel D - completes quad configuration; suitable for reference buffer or calibration path. |
| 13 | –IN D | Inverting input, channel D - enables fourth independent gain stage without cross-talk or shared bias errors. |
| 14 | OUT D | Amplifier D output - matches performance of other outputs; supports 4-channel data acquisition systems. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 2.3–5.5-V supply range: input extends (V−) −0.2 V to (V+) +0.2 V; output swings within 25 mV of rails under light load. |
| Low input bias current (±10 pA max) | Preserves signal integrity in high-Z sensor interfaces (e.g., pH electrodes, piezoelectric sensors) without added leakage error. |
| 6.5-MHz GBW with 5-V/µs slew rate | Supports wideband signal conditioning up to ~1 MHz in G = 10 configurations while maintaining <0.1% distortion. |
| Specified from –40°C to +125°C | Validates performance in automotive cabin modules, industrial motor controllers, and outdoor IoT edge nodes. |
| Quad-channel integration in TSSOP-14 | Reduces board area by ~75% vs discrete single-op-amp solutions; eliminates inter-channel layout mismatches. |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Amplifying low-level biopotential signals (ECG, EMG) from dry electrodes in wearable patches. IC Role / Device Role / Timing Role: Quad-channel signal conditioning front-end: two channels for differential lead I/II acquisition, one for right-leg drive, one for reference buffer. Use Value: Rail-to-rail I/O maximizes ADC dynamic range from 3.3-V supply; 585-µA/channel current enables >7-day battery life on coin cell. |
Use Scenario: Conditioning thermistor, humidity, and accelerometer outputs in compact environmental monitors. IC Role / Device Role / Timing Role: Simultaneous analog front-end for four independent sensor types, each with dedicated gain/offset tuning. Use Value: 6.5-MHz bandwidth supports anti-alias filtering before 100-kSPS sampling; low IB prevents thermistor self-heating error. |
| Industrial Process Transmitters | Automotive Cabin Air Quality Modules |
Use Scenario: Signal conditioning for 4–20-mA loop-powered pressure and flow sensors in factory automation. IC Role / Device Role / Timing Role: Precision I/V conversion and linearization amplifier with integrated reference buffering. Use Value: 5-mV max offset ensures ≤0.025% FSR error in 16-bit measurement systems; 125°C rating supports junction-box mounting. |
Use Scenario: Analog preprocessing of CO₂, VOC, and PM2.5 sensor outputs in HVAC control units. IC Role / Device Role / Timing Role: Multi-channel sensor interface with EMI-hardened rail-to-rail I/O for noisy 12-V automotive environments. Use Value: 90-dB CMRR rejects ignition noise; 2.3-V min supply allows operation during cold-crank conditions down to 6-V battery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4374AIPW | Same silicon, identical electrical specs; differs only in RoHS compliance marking (G4 suffix denotes green/lead-free). | No functional difference; both qualified for industrial temp range and TSSOP-14 footprint. | Select OPA4374AIPW for legacy designs requiring non-G4 marking; OPA4374AIPWRG4 preferred for new RoHS-compliant production. |
| TLV2464IDR | Lower GBW (6.4 MHz), higher IQ (650 µA/ch), wider offset range (6 mV max), but adds shutdown control per channel. | Requires additional GPIO routing for enable control; less suitable for always-on sensor nodes where shutdown adds complexity. | Choose TLV2464IDR only if per-channel shutdown is mandatory; otherwise OPA4374AIPWRG4 offers superior offset and lower power. |
Compared with OPA4374AIPW, the OPA4374AIPWRG4 provides identical performance with enhanced environmental compliance; versus TLV2464IDR, it trades shutdown flexibility for tighter DC accuracy and lower quiescent current - critical for energy-constrained edge sensing.
Availability
OPA4374AIPWRG4 is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, and industrial process transmitters requiring stable component supply and long-term manufacturability.
Supply support for OPA4374AIPWRG4 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The OPAx374 family was designed for high-fidelity, low-power signal conditioning in space- and energy-constrained systems - emphasizing rail-to-rail operation, low input bias, and robust performance across extended temperature ranges.
FAQ
What is the maximum operating temperature for the OPA4374AIPWRG4?
The OPA4374AIPWRG4 is fully specified and tested from –40°C to +125°C ambient temperature. Its thermal design - including RθJA = 112.7°C/W in TSSOP-14 - supports reliable operation in automotive engine compartments and industrial control cabinets without derating, provided PCB thermal vias connect the exposed die pad to a solid ground plane.
Does the OPA4374AIPWRG4 have a shutdown pin?
No, the OPA4374AIPWRG4 does not include a shutdown function. Unlike the OPAx373 family, the OPAx374 series (including OPA4374AIPWRG4) operates continuously when powered. For power-gated applications, external MOSFET switching of the V+ rail or use of a shutdown-capable alternative like TLV2464IDR is required.
Can the OPA4374AIPWRG4 drive capacitive loads reliably?
Yes - the OPA4374AIPWRG4 is stable driving up to 250 pF in unity-gain configuration. For heavier loads (>500 pF), adding a 10-Ω to 20-Ω isolation resistor between output and capacitance restores phase margin. This behavior is documented in Figure 17 of the SBOS279F datasheet and validated across temperature and supply voltage.
What is the typical input offset voltage drift of the OPA4374AIPWRG4?
The OPA4374AIPWRG4 exhibits a typical input offset voltage drift of 3 µV/°C over –40°C to +125°C. This low drift - combined with 5-mV max initial offset - ensures minimal DC error accumulation in precision instrumentation amplifiers and sensor bridges operating across wide ambient ranges.
Is the OPA4374AIPWRG4 pin-compatible with other quad op amps in TSSOP-14?
No - the OPA4374AIPWRG4 has a unique pinout optimized for quad independence: V+ and V– are centrally located (pins 4 and 11), with all eight inputs and four outputs arranged symmetrically. It is not pin-compatible with generic TSSOP-14 quad op amps like LM324 or TLV2464; PCB layout must follow TI's recommended footprint for PW package.
OPA4374AIPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
OPA4374AIPWRG4 FAQ
1.How can I place an order for OPA4374AIPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4374AIPWRG4 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 OPA4374AIPWRG4 reliable?
The price and inventory of OPA4374AIPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4374AIPWRG4 is usually 5 days.
3.What payment methods are accepted for OPA4374AIPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4374AIPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4374AIPWRG4?
OPA4374AIPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4374AIPWRG4 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 OPA4374AIPWRG4?
For technical support, including OPA4374AIPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4374AIPWRG4 requirements.
6.How does Aetrix verify that OPA4374AIPWRG4 is sourced from the original manufacturer or authorized distributors?
All OPA4374AIPWRG4 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 OPA4374AIPWRG4 meets industry standards.
7.What is the process for return or replacement of OPA4374AIPWRG4?
All OPA4374AIPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA4374AIPWRG4, 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 OPA4374AIPWRG4 part is unused and in its original packaging.
Return procedure for OPA4374AIPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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