My Inquiry
My Account
Texas Instruments OPA2374AIDCNT
- Part No.:
- OPA2374AIDCNT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
OPA2374AIDCNT.pdf
- Description:
- IC CMOS 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:6,777
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA2374AIDCNT from Texas Instruments is a dual-channel, 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 - enabling high-speed signal conditioning in space-constrained, battery-powered systems such as portable medical sensors and handheld test equipment.
For engineers reviewing the OPA2374AIDCNT datasheet, OPA2374AIDCNT pinout, OPA2374AIDCNT application, or OPA2374AIDCNT equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions for the 8-pin SOT-23 package, application-specific implementation guidance, and two confirmed alternative parts with documented functional and packaging differences.
Technical Context
The OPA2374AIDCNT uses a complementary CMOS input stage enabling rail-to-rail input common-mode range (V− −0.2 V to V+ +0.2 V) and a class AB output stage supporting rail-to-rail swing within 18 mV of rails under light loads (100 kΩ). Its unity-gain stable architecture ensures robust performance in active filters and ADC driver configurations without external compensation.
No shutdown function is integrated - distinguishing it from the pin-compatible OPA2373 family. It operates across –40°C to +125°C and is specified for supply voltages down to 2.3 V, making it suitable for wide-temperature industrial sensing nodes where low-voltage headroom is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 6.5 MHz - supports stable unity-gain buffer or G = +2 amplification up to ~3 MHz without phase margin degradation |
| Slew rate | 5 V/µs - enables clean 1-VPP signal reproduction at up to ~800 kHz before slew-induced distortion dominates |
| Input offset voltage | 5 mV max - limits DC error to ≤0.5% of full-scale in 1-V reference circuits without trimming |
| Quiescent current | 585 µA per channel - allows dual op-amp operation on coin-cell batteries for >1 year in duty-cycled sensor front-ends |
| Input bias current | 10 pA max - permits use with high-impedance sources (e.g., pH electrodes, photodiode transimpedance feedback) without significant leakage error |
| Rail-to-rail I/O | Input extends 200 mV beyond rails; output swings to within 18 mV of rails (100 kΩ load) - maximizes dynamic range in 3.3-V or lower systems |
| Operating temperature | –40°C to +125°C - qualified for under-hood automotive sensors and industrial PLC analog I/O modules |
Pinout & Package
OPA2374AIDCNT is housed in an 8-pin SOT-23 package (DCN), measuring 2.90 mm × 1.63 mm × 1.10 mm, with exposed thermal pad connected internally to V− for improved power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - directly drives ADC input or next-stage filter; requires local 100-pF bypass if driving >100-pF capacitive load |
| 2 | –IN A | Inverting input, channel A - connects to feedback network in inverting configurations; sensitive to PCB leakage above 100 MΩ |
| 3 | +IN A | Noninverting input, channel A - ties to high-impedance sensor node; guard ring recommended for sub-pA bias current preservation |
| 4 | V− | Negative supply - must be connected to system ground or negative rail; thermal pad soldered to PCB ground plane for thermal stability |
| 5 | +IN B | Noninverting input, channel B - independent of channel A; enables dual-sensor monitoring (e.g., differential thermocouple + reference) |
| 6 | –IN B | Inverting input, channel B - used for second feedback path; no internal crosstalk with channel A (≥120 dB channel separation at DC) |
| 7 | OUT B | Amplifier B output - can drive separate signal chain (e.g., analog monitor path) without sharing load with OUT A |
| 8 | V+ | Positive supply - accepts 2.3–5.5 V; requires 1-µF ceramic + 10-nF ceramic decoupling within 3 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input range | Extends 200 mV beyond supply rails - eliminates level-shifting circuitry when interfacing with 0–3.3 V DACs or microcontroller GPIOs |
| Low input bias current | ≤10 pA maximum - enables accurate amplification of signals from high-Z sources like piezoelectric sensors without loading error |
| High open-loop gain | 94 dB minimum (5 V supply) - ensures <0.01% gain error in precision instrumentation amplifier topologies using external resistors |
| Wide temperature range | Specified from –40°C to +125°C - supports deployment in unheated outdoor IoT gateways and motor control feedback loops |
| Low noise density | 15 nV/√Hz at 10 kHz - maintains SNR >80 dB in 20-kHz audio preamplifier stages with 10-kΩ source impedance |
Applications
| Portable ECG Front-End | Battery-Powered Gas Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in a handheld cardiac monitor with 3.3-V Li-ion supply. IC Role / Device Role / Timing Role: Dual-channel OPA2374AIDCNT serves as first-stage low-noise amplifier (CH A) and right-leg drive buffer (CH B) in a 3-electrode configuration. Use Value: Rail-to-rail input captures full electrode offset range; 10-pA bias current prevents baseline drift from skin-electrode interface impedance (>1 MΩ). |
Use Scenario: Conditioning output from electrochemical CO sensor requiring low-drift amplification and 12-bit ADC interfacing in a portable air quality meter. IC Role / Device Role / Timing Role: OPA2374AIDCNT CH A acts as transimpedance amplifier; CH B buffers reference voltage for ratiometric measurement. Use Value: 5-mV max offset ensures <0.5% full-scale error at 1-V output span; 585-µA/channel current enables >2-year battery life at 10-s sampling interval. |
| Industrial Temperature Transmitter | USB-Powered Oscilloscope Probe |
Use Scenario: Signal conditioning for 4–20 mA loop-powered RTD measurements in factory-floor environments with ambient temperatures up to 85°C. IC Role / Device Role / Timing Role: OPA2374AIDCNT CH A amplifies bridge output; CH B drives 50-Ω coaxial cable to isolated ADC. Use Value: 125°C rating guarantees operation inside sealed enclosures; rail-to-rail output delivers full 0–3.3 V ADC range from 2.7-V loop supply. |
Use Scenario: Active 1× probe for low-cost USB oscilloscopes, requiring wide bandwidth, minimal loading, and direct 3.3-V USB power compatibility. IC Role / Device Role / Timing Role: OPA2374AIDCNT configured as unity-gain buffer with 50-Ω output termination for 50-Ω scope input. Use Value: 6.5-MHz GBW supports <100-ns rise time; 5-V/µs slew rate preserves edge fidelity for 10-MHz square waves without overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2373AIDCNT | Includes enable/shutdown pin; 1-µA shutdown current per channel; otherwise identical AC specs and pinout | Required where system-level power gating is needed (e.g., sleep-mode data loggers); adds one control line | Select OPA2373AIDCNT only if active power management justifies added complexity and layout space for enable routing |
| MCP6022-I/SN | Lower GBW (10 MHz), higher IQ (1 mA/channel), SOIC-8 only; no SOT-23 option; 2-mV offset max | Better for cost-sensitive, non-space-constrained designs needing higher speed but tolerating higher power and larger footprint | Choose MCP6022-I/SN when board area is unconstrained and 10-MHz bandwidth outweighs 72% higher supply current |
Compared with OPA2374AIDCNT, OPA2373AIDCNT adds controllable power-down at the cost of one GPIO, while MCP6022-I/SN trades 38% higher quiescent current and SOIC-only packaging for +3.5 MHz bandwidth - making OPA2374AIDCNT optimal for ultra-low-power, miniaturized dual-amplifier signal chains.
Availability
OPA2374AIDCNT is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, and industrial temperature transmitters requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for OPA2374AIDCNT 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 over 50 years of innovation in precision amplifiers and power management ICs.
The OPAx374 family was designed specifically for low-voltage, low-power signal conditioning in portable and industrial systems - emphasizing rail-to-rail operation, micropower efficiency, and robustness across extended temperature ranges.
FAQ
What is the maximum operating supply voltage for OPA2374AIDCNT?
The absolute maximum supply voltage for OPA2374AIDCNT is 7 V, but the recommended operating range is 2.3 V to 5.5 V. Operation above 5.5 V risks permanent damage, while operation below 2.3 V may cause degraded gain-bandwidth and increased input offset voltage. The OPA2374AIDCNT is fully specified and tested from 2.7 V to 5.5 V per TI SBOS279F.
Does OPA2374AIDCNT include a shutdown feature?
No, OPA2374AIDCNT does not include a shutdown or enable function. This distinguishes it from the pin-compatible OPA2373AIDCNT, which integrates an enable pin. If power gating is required in your design, OPA2374AIDCNT must be powered down via external supply control - or replaced with OPA2373AIDCNT, which offers <1 µA shutdown current per channel.
Can OPA2374AIDCNT drive a 1000-pF capacitive load?
OPA2374AIDCNT is not unity-gain stable with 1000-pF loads. Its typical stable capacitive load limit is ~250 pF in unity-gain configuration. Driving 1000-pF requires isolation via a series resistor (e.g., 10–20 Ω) between the OPA2374AIDCNT output and the load, or use of a higher-gain configuration (G ≥ +5) to improve phase margin. Refer to Figure 17 in the SBOS279F datasheet for overshoot vs. capacitance curves.
What is the thermal pad connection requirement for OPA2374AIDCNT?
The exposed thermal pad on the underside of the OPA2374AIDCNT (DCN package) is internally connected to V−. It must be soldered to a PCB copper pour tied to the system ground plane to ensure thermal stability and prevent junction temperature rise above 125°C under continuous 585-µA/channel operation. Leaving the pad floating degrades thermal resistance by >40% and risks parametric shift.
How does input common-mode range exceed the supply rails in OPA2374AIDCNT?
OPA2374AIDCNT achieves rail-to-rail input via a complementary CMOS input stage: parallel N-channel and P-channel differential pairs. This allows valid operation from (V−) −0.2 V to (V+) +0.2 V. Inputs beyond this range (but within ±0.5 V of rails) are nondestructive if current-limited to ≤10 mA - enabling safe interfacing with overvoltage-tolerant sensors without external clamping diodes.
OPA2374AIDCNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- 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 (x2 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:
- SOT-23-8
OPA2374AIDCNT FAQ
1.How can I place an order for OPA2374AIDCNT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2374AIDCNT 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 OPA2374AIDCNT reliable?
The price and inventory of OPA2374AIDCNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2374AIDCNT is usually 5 days.
3.What payment methods are accepted for OPA2374AIDCNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2374AIDCNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2374AIDCNT?
OPA2374AIDCNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2374AIDCNT 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 OPA2374AIDCNT?
For technical support, including OPA2374AIDCNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2374AIDCNT requirements.
6.How does Aetrix verify that OPA2374AIDCNT is sourced from the original manufacturer or authorized distributors?
All OPA2374AIDCNT 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 OPA2374AIDCNT meets industry standards.
7.What is the process for return or replacement of OPA2374AIDCNT?
All OPA2374AIDCNT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2374AIDCNT, 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 OPA2374AIDCNT part is unused and in its original packaging.
Return procedure for OPA2374AIDCNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2374AIDCNT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
