My Inquiry
My Account
Texas Instruments OPA2369AIDCNTG4
- Part No.:
- OPA2369AIDCNTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
OPA2369AIDCNTG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,357
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA2369AIDCNTG4 from Texas Instruments is a dual, ultra-low-power, rail-to-rail input/output operational amplifier optimized for 1.8V–5.5V battery-powered systems. It delivers 700nA per channel quiescent current, 250µV typical offset voltage, 12kHz gain-bandwidth product, and zero-crossover architecture to eliminate input-stage distortion in low-voltage sensor signal conditioning.
For engineers reviewing the OPA2369AIDCNTG4 datasheet, OPA2369AIDCNTG4 pinout, OPA2369AIDCNTG4 application, or OPA2369AIDCNTG4 equivalent, this page provides verified technical context, package-specific pin functions, real-world use cases in medical instrumentation and portable devices, and validated alternative options for low-power precision amplification.
Technical Context
The OPA2369AIDCNTG4 implements a zero-crossover input stage that eliminates transition-region distortion across the full common-mode range (V– to V+), enabling accurate DC-coupled operation at 1.8V supply. Its CMRR of 114dB and PSRR of 106dB ensure stable performance under supply ripple and common-mode shifts.
It features true rail-to-rail output swing (10mV from rail, RL = 100kΩ), 134dB open-loop gain, and 0.4µV/°C offset drift - all specified over –40°C to +85°C. Input bias current is 10pA, supporting high-impedance sensor interfaces without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8V to 5.5V - enables direct interface with single-cell Li-ion, NiMH, or coin-cell batteries without regulation. |
| Quiescent Current | 0.7µA per channel - extends battery life in always-on wearable sensors and implantable monitors. |
| Input Offset Voltage | 250µV typ - supports sub-millivolt-level signal amplification in thermistor or strain-gauge front-ends. |
| Gain-Bandwidth Product | 12kHz - sufficient for DC–10kHz biomedical signals (ECG, pulse oximetry) and slow industrial transducers. |
| CMRR | 114dB - rejects noise from shared ground paths in multi-sensor PCB layouts. |
| Output Swing | 10mV from rail (RL = 100kΩ) - maximizes dynamic range in low-voltage ADC driver applications. |
| Offset Drift | 0.4µV/°C - ensures <1µV total drift over 0°C–70°C ambient, critical for uncalibrated field instruments. |
Pinout & Package
SOT-23-8 (DCN) package: 2.9mm × 2.8mm × 1.3mm body, 0.65mm pitch, exposed pad optional, RoHS-compliant NIPDAU finish, MSL Level-2-260°C-1 year.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load or ADC input; rail-to-rail swing supports full-scale utilization of 1.8V ADCs. |
| 2 (–IN A) | Inverting input A | Accepts feedback network or inverted signal path; 10pA bias current minimizes resistor-induced offset. |
| 3 (+IN A) | Non-inverting input A | Connects to high-Z sensor nodes; common-mode range extends to both supply rails. |
| 4 (V–) | Negative supply | Ground reference for single-supply operation; must be decoupled with 0.1µF ceramic capacitor. |
| 5 (+IN B) | Non-inverting input B | Independent channel input; enables dual-path signal conditioning (e.g., differential pair or window comparator). |
| 6 (–IN B) | Inverting input B | Supports independent feedback configuration; channel separation >120dB at 1kHz prevents crosstalk. |
| 7 (OUT B) | Amplifier B output | Provides second analog channel without additional IC footprint or power overhead. |
| 8 (V+) | Positive supply | Accepts 1.8V–5.5V; PSRR of 106dB suppresses switching regulator noise on shared supply rails. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-crossover input stage | Eliminates input-stage crossover distortion across entire common-mode range, ensuring monotonic transfer function at 1.8V supply. |
| Rail-to-rail I/O | Enables full utilization of supply voltage headroom - critical for maximizing SNR in low-voltage data acquisition systems. |
| 700nA per channel IQ | Reduces system standby power by >50% vs. comparable micropower op amps, extending shelf life of battery-backed sensors. |
| 114dB CMRR | Maintains accuracy in noisy industrial environments where sensor grounds differ from controller ground by up to 100mV. |
| 0.4µV/°C offset drift | Permits one-time factory calibration in portable test equipment without recalibration across operating temperature range. |
Applications
| Battery-Powered Medical Sensors | Portable Gas Detection |
|---|---|
Use Scenario: Amplifying microvolt-level signals from electrochemical gas sensors in handheld air quality monitors powered by CR2032 coin cells. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: Channel A buffers reference electrode, Channel B amplifies working electrode output with 100× gain. Use Value: 700nA/channel IQ extends battery life beyond 2 years in continuous monitoring mode; zero-crossover ensures linear response across 0–100ppm CO range. | Use Scenario: Signal conditioning for thermopile-based IR CO₂ sensors in portable breath analyzers with 1.8V MCU interface. IC Role / Device Role / Timing Role: DC-coupled amplifier driving 12-bit SAR ADC; configured as unity-gain buffer for sensor output and non-inverting amplifier for offset compensation. Use Value: 250µV offset and 0.4µV/°C drift enable ±0.1% CO₂ measurement accuracy without software correction across 15°C–35°C ambient. |
| Low-Power ECG Front-End | Industrial Temperature Monitoring |
Use Scenario: First-stage amplification in wearable ECG patches using dry electrodes and single-cell Li-ion battery (2.7–4.2V). IC Role / Device Role / Timing Role: Instrumentation amplifier core (two OPA2369AIDCNTG4 channels + external resistors) providing 100dB CMRR and 500V/V gain. Use Value: Rail-to-rail I/O preserves full 1.8V ADC input range; 12kHz GBW supports 0.05–150Hz ECG bandwidth with <0.1% gain error. | Use Scenario: Conditioning output of Pt100 RTD bridges in wireless temperature nodes deployed in HVAC ducts with 10-year battery life target. IC Role / Device Role / Timing Role: Precision current source (via Howland configuration) and bridge amplifier; one channel sources excitation current, the other amplifies bridge voltage. Use Value: 10pA input bias current prevents self-heating errors in high-resistance RTD legs; 114dB CMRR rejects common-mode noise from 24V AC line coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power precision amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2369AIDGKTG4 | VSSOP-8 package (3.0mm × 3.0mm); 250-unit small tape-and-reel; same electrical specs. | Requires larger PCB footprint but offers improved thermal resistance (θJA = 252°C/W vs. 223°C/W for SOT-23). | Select when board layout allows VSSOP and thermal management is prioritized over minimal area. |
| LTC2050CMS8#PBF | Higher IQ (1.5µA/ch), lower offset (10µV max), wider supply (2.7–6V), but no zero-crossover architecture. | Superior DC precision but exhibits crossover distortion below 2.7V - unsuitable for 1.8V operation. | Choose only if supply ≥2.7V and sub-10µV offset is mandatory; not drop-in compatible at 1.8V. |
Compared with OPA2369AIDCNTG4, the VSSOP variant offers better thermal performance in space-constrained designs, while the LTC2050 provides higher DC accuracy at the cost of 1.8V incompatibility and doubled quiescent current - making OPA2369AIDCNTG4 optimal for true nano-power, single-cell applications.
Availability
OPA2369AIDCNTG4 is available at Aetrix Electronics and suitable for battery-powered medical sensors, portable gas detection, low-power ECG front-ends, and industrial temperature monitoring requiring stable component supply across long-lifecycle programs.
Supply support for OPA2369AIDCNTG4 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 amplifiers and low-power design.
The OPA2369AIDCNTG4 belongs to TI's nanoPOWER™ op amp family, engineered specifically for energy-constrained applications where sub-1µA quiescent current, rail-to-rail operation, and DC precision must coexist at 1.8V.
FAQ
What is the maximum operating temperature range for the OPA2369AIDCNTG4?
The OPA2369AIDCNTG4 is specified for operation from –40°C to +85°C (industrial grade). Absolute maximum junction temperature is +150°C, and storage temperature range extends from –65°C to +150°C per the official TI datasheet SBOS414B.
Does the OPA2369AIDCNTG4 support true rail-to-rail input and output simultaneously?
Yes, the OPA2369AIDCNTG4 supports true rail-to-rail input (common-mode range from V– to V+) and rail-to-rail output (swing within 10mV of either rail with 100kΩ load). This is enabled by its zero-crossover input architecture and complementary output stage.
Can the OPA2369AIDCNTG4 drive capacitive loads, and what is the recommended limit?
The OPA2369AIDCNTG4 can drive up to 20pF capacitive load with stable operation and minimal overshoot (<5%). For loads exceeding 20pF, TI recommends adding a series resistor (typically 10–50Ω) between the output and capacitive node to maintain phase margin.
Is the OPA2369AIDCNTG4 pin-compatible with other members of the OPA369 family?
No - the OPA2369AIDCNTG4 (SOT-23-8) is not pin-compatible with the single-channel OPA369 (SC70-5 or SOT23-5). Pinouts differ fundamentally: OPA2369 uses 8 pins for dual functionality, while OPA369 uses 5 pins for single-channel operation.
What is the typical input bias current of the OPA2369AIDCNTG4, and why does it matter?
The typical input bias current of the OPA2369AIDCNTG4 is 10pA. This ultra-low value minimizes voltage error across high-value feedback or sensor resistors (e.g., >1MΩ in pH or photodiode circuits), preserving DC accuracy without requiring guard traces or active bias cancellation.
OPA2369AIDCNTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.005V/µs
- Gain Bandwidth Product:
- 12 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 700nA (x2 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
OPA2369AIDCNTG4 FAQ
1.How can I place an order for OPA2369AIDCNTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2369AIDCNTG4 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 OPA2369AIDCNTG4 reliable?
The price and inventory of OPA2369AIDCNTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2369AIDCNTG4 is usually 5 days.
3.What payment methods are accepted for OPA2369AIDCNTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2369AIDCNTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2369AIDCNTG4?
OPA2369AIDCNTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2369AIDCNTG4 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 OPA2369AIDCNTG4?
For technical support, including OPA2369AIDCNTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2369AIDCNTG4 requirements.
6.How does Aetrix verify that OPA2369AIDCNTG4 is sourced from the original manufacturer or authorized distributors?
All OPA2369AIDCNTG4 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 OPA2369AIDCNTG4 meets industry standards.
7.What is the process for return or replacement of OPA2369AIDCNTG4?
All OPA2369AIDCNTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2369AIDCNTG4, 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 OPA2369AIDCNTG4 part is unused and in its original packaging.
Return procedure for OPA2369AIDCNTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2369AIDCNTG4 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…
