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Texas Instruments OPA4374AID
- Part No.:
- OPA4374AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA4374AID.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:400
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Product details
Overview
OPA4374AID 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 and input bias current ≤10 pA - enabling precision signal conditioning in battery-powered sensor interfaces and portable data acquisition systems.
For engineers reviewing the OPA4374AID datasheet, OPA4374AID pinout, OPA4374AID application, or OPA4374AID equivalent, this page provides verified specifications, SOIC-14 and TSSOP-14 package details, real-world application context for rail-to-rail I/O performance, and validated alternative options for multi-channel low-power op amp selection.
Technical Context
The OPA4374AID uses a complementary CMOS input stage enabling rail-to-rail input common-mode range from (V−) −0.2 V to (V+) + 0.2 V, with output swing within 25 mV of rails under light loads. Its unity-gain stable architecture supports high-frequency closed-loop configurations up to 6.5 MHz without external compensation.
Each of its four independent amplifiers operates with matched DC and AC characteristics across −40°C to +125°C, drawing only 585–800 µA per channel. No shutdown function is integrated - distinguishing it from the OPAx373 family - and all channels share common V+ and V− supply pins in the 14-pin SOIC/TSSOP packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 6.5 MHz - enables stable unity-gain buffer or gain-of-10 amplification up to ~650 kHz with adequate phase margin |
| Slew rate | 5 V/µs - supports clean 1-Vpp signal reproduction at up to ~800 kHz without slew-induced distortion |
| Input offset voltage | ≤5 mV (max) - ensures ≤0.1% error in 5-V full-scale single-ended sensor outputs without trimming |
| Input bias current | ≤10 pA (max) - permits use with high-impedance sources (e.g., pH electrodes, photodiode transimpedance) without significant error |
| Supply voltage range | 2.3 V to 5.5 V - compatible with Li-ion, 3.3-V, and 5-V logic rails; supports direct interface to ADC reference voltages |
| Output voltage swing | Within 25 mV of rails (RL ≥100 kΩ) - maximizes dynamic range in low-voltage systems, e.g., 3.3-V ADC drivers |
| Operating temperature | −40°C to +125°C - qualified for automotive cabin, industrial control, and extended-environment embedded applications |
Pinout & Package
OPA4374AID is available in 14-pin SOIC (D package, 8.65 mm × 3.91 mm) and 14-pin TSSOP (PW package, 5.00 mm × 4.40 mm), both with exposed thermal pad on underside (not electrically connected; recommended to tie to V− for thermal performance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT A, OUT B, OUT C, OUT D | Amplifier output terminals - each drives independent load; no internal crosstalk mitigation beyond 140 dB channel separation at DC |
| 2, 6, 9, 13 | −IN A, −IN B, −IN C, −IN D | Inverting inputs - accept differential or single-ended signals; support common-mode down to V− −0.2 V |
| 3, 5, 10, 12 | +IN A, +IN B, +IN C, +IN D | Noninverting inputs - identical common-mode range as inverting inputs; enable true rail-to-rail input operation |
| 4 | V+ | Positive supply pin - shared by all four amplifiers; must be decoupled locally with ≥0.1 µF ceramic capacitor |
| 11 | V− | Negative supply pin - shared return path; ties to system ground in single-supply configurations |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 2.3–5.5-V supply range - critical for maximizing SNR in low-voltage SAR ADC front-ends |
| 6.5-MHz bandwidth at 585-µA/channel | Delivers >10× better speed-power ratio than legacy low-power op amps - reduces need for gain staging in portable audio paths |
| Input common-mode range extends 200 mV beyond rails | Permits direct connection to overvoltage-tolerant sensors (e.g., automotive battery monitors) without level-shifting circuitry |
| 140-dB DC channel separation | Minimizes inter-channel crosstalk in multi-signal acquisition (e.g., 4-channel ECG front-end) without guard traces |
| Specified from −40°C to +125°C | Eliminates derating calculations for industrial motor control feedback loops or automotive ambient sensing nodes |
Applications
| Portable Sensor Interface | Battery-Powered Data Logger |
|---|---|
|
Use Scenario: Amplifying low-level thermistor, RTD, or bridge sensor outputs in handheld environmental meters. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end - two channels for differential sensing, two for reference buffering and filtering. Use Value: Rail-to-rail I/O preserves >98% of 3.3-V ADC full scale; 10-pA input bias avoids loading high-Z sensor elements. |
Use Scenario: Signal conditioning and multiplexed analog input scaling for 4-channel, 16-bit SAR ADC in field-deployable loggers. IC Role / Device Role / Timing Role: Simultaneous anti-aliasing filter driver and reference buffer - one op amp per channel plus shared reference. Use Value: 6.5-MHz GBW ensures <0.01% settling in <1.5 µs at 16-bit resolution; 585-µA/channel extends battery life >30% vs. older quad op amps. |
| Low-Voltage Active Filter Bank | Industrial PLC Analog Input Module |
|
Use Scenario: Implementing 4-pole Sallen-Key or MFB filters for noise suppression in wearable health monitors. IC Role / Device Role / Timing Role: Quad op amp configured as cascaded 2nd-order stages - each channel handles one filter section. Use Value: Unity-gain stability and 5-V/µs slew rate maintain filter Q-factor and cutoff accuracy up to 100 kHz with minimal peaking. |
Use Scenario: Conditioning 4-channel 4–20 mA loop receiver outputs in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Current-to-voltage conversion and level-shifting amplifier - one channel per loop, referenced to isolated 24-V supply. Use Value: 125°C rating ensures reliability in enclosed control cabinets; rail-to-rail output drives 0–5 V ADC inputs directly without external level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4340UA | Higher quiescent current (800 µA/channel), wider supply range (2.7–36 V), no rail-to-rail input | Better suited for wide-supply industrial sensors but lacks rail-to-rail input needed for low-voltage precision | Select when operating above 5.5 V or requiring higher output drive into 600-Ω loads |
| MCP6004-E/P | Lower bandwidth (1 MHz), higher offset (4.5 mV max), same 585-µA/channel, rail-to-rail I/O | Cost-optimized for consumer-grade portables where 6.5-MHz bandwidth is unnecessary | Select for cost-sensitive designs with <100-kHz signal bandwidth requirements and relaxed AC specs |
Compared with OPA4340UA and MCP6004-E/P, the OPA4374AID uniquely balances 6.5-MHz bandwidth, rail-to-rail I/O, and sub-600-µA quiescent current - making it optimal for battery-constrained, high-fidelity multi-channel signal chains where both speed and power efficiency are non-negotiable.
Availability
OPA4374AID is available at Aetrix Electronics and suitable for portable sensor interfaces, battery-powered data loggers, low-voltage active filter banks, and industrial PLC analog input modules requiring stable component supply across automotive, industrial, and medical design cycles.
Supply support for OPA4374AID 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 decades of expertise in precision op amp design and manufacturing.
The OPAx374 family was engineered specifically for high-speed, low-power, rail-to-rail signal conditioning in space- and energy-constrained applications - targeting portable instrumentation, sensor fusion nodes, and battery-operated industrial edge devices.
FAQ
What supply voltage range does the OPA4374AID support?
The OPA4374AID operates from 2.3 V to 5.5 V single supply (or ±1.15 V to ±2.75 V dual supply). This range accommodates Li-ion batteries, 3.3-V logic, and legacy 5-V systems. Operation below 2.3 V is not characterized; above 7 V risks permanent damage per absolute maximum ratings.
Does the OPA4374AID include a shutdown feature?
No, the OPA4374AID does not include a shutdown function. Unlike the pin-compatible OPAx373 family, this device lacks enable/control pins. All four amplifiers remain active whenever powered. For power-gated applications, external FET switching of V+ or use of OPA4373AID is required.
What is the maximum capacitive load the OPA4374AID can drive stably?
The OPA4374AID remains stable with up to 250 pF capacitive load in unity-gain configuration. At higher gains (e.g., G = +10), it supports larger loads. For >250 pF, a small series resistor (10–20 Ω) between output and load restores phase margin - confirmed in TI's SBOS279F datasheet Figure 17.
How does the OPA4374AID's input common-mode range exceed the supply rails?
The OPA4374AID uses parallel N-channel and P-channel input pairs, extending the common-mode range to (V−) −0.2 V and (V+) + 0.2 V. Inputs beyond this range (but within ±0.5 V of rails) are safe if current-limited to ≤10 mA - enabling robust interfacing with overvoltage-capable sensors without external protection.
Is the OPA4374AID pin-compatible with other quad op amps in SOIC-14?
OPA4374AID shares the standard SOIC-14 pinout defined in TI's datasheet (pins 1–14 assigned to OUT A through V−), but functional compatibility requires verification: OPA4340UA has different input structure and no rail-to-rail input; MCP6004 uses a different pin mapping. Always confirm pin functions against respective datasheets before substitution.
OPA4374AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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-SOIC
OPA4374AID FAQ
1.How can I place an order for OPA4374AID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4374AID 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 OPA4374AID reliable?
The price and inventory of OPA4374AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4374AID is usually 5 days.
3.What payment methods are accepted for OPA4374AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4374AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4374AID?
OPA4374AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4374AID 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 OPA4374AID?
For technical support, including OPA4374AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4374AID requirements.
6.How does Aetrix verify that OPA4374AID is sourced from the original manufacturer or authorized distributors?
All OPA4374AID 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 OPA4374AID meets industry standards.
7.What is the process for return or replacement of OPA4374AID?
All OPA4374AID units undergo pre-shipment inspection (PSI). If there is an issue with OPA4374AID, 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 OPA4374AID part is unused and in its original packaging.
Return procedure for OPA4374AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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