My Inquiry
My Account
Texas Instruments OPA2369AIDCNT
- Part No.:
- OPA2369AIDCNT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
OPA2369AIDCNT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,490
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA2369AIDCNT 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 max input offset voltage, 12kHz gain-bandwidth product, and zero-crossover architecture to eliminate input-stage distortion-enabling precision signal conditioning in medical sensors and portable instrumentation.
For engineers reviewing the OPA2369AIDCNT datasheet, OPA2369AIDCNT pinout, OPA2369AIDCNT application, or OPA2369AIDCNT equivalent, this page provides verified electrical specifications, SOT-23-8 package layout, real-world use cases including battery monitoring and window comparators, and validated alternative parts with documented functional trade-offs.
Technical Context
The OPA2369AIDCNT employs a complementary input stage with zero-crossover design, eliminating the offset discontinuity typical of rail-to-rail op amps below 3V supply. Its input common-mode range extends from V– to V+, with CMRR of 114dB and PSRR of 106dB at 25°C, ensuring stable DC accuracy across full supply rails.
It operates down to 1.8V with true rail-to-rail output swing (10mV from rail into 100kΩ), supports capacitive loads up to 100pF, and features 10pA input bias current and 3.6µVPP 0.1Hz–10Hz noise-making it suitable for high-impedance, low-noise sensor front-ends where power and precision are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8V to 5.5V - enables direct operation from single-cell Li-ion, alkaline, or coin-cell batteries without regulation. |
| Quiescent Current | 0.7µA per channel - allows multi-year battery life in always-on sensor nodes drawing <1µA total system current. |
| Input Offset Voltage | 250µV (max) - supports 12-bit+ DC-coupled measurement accuracy without trimming in low-voltage systems. |
| Gain-Bandwidth Product | 12kHz - sufficient for DC–10kHz sensor signal conditioning, filter implementation, and comparator hysteresis control. |
| CMRR / PSRR | 114dB / 106dB - rejects supply ripple and common-mode interference in noisy portable environments. |
| Input Bias Current | 10pA (typ) - preserves signal integrity when interfacing with >10MΩ source impedances (e.g., pH electrodes, piezoresistive sensors). |
| Output Swing | 10mV from rail (RL = 100kΩ) - maximizes dynamic range in 1.8V–3.3V ADC interfaces. |
Pinout & Package
SOT-23-8 package (DCN), 2.9mm × 2.8mm footprint, 1.1mm max height, exposed pad not electrically connected. RoHS-compliant, NIPDAU lead finish, MSL Level-2-260°C-1 year.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives load directly; rail-to-rail swing supports full-scale ADC input without level-shifting. |
| 2 (–IN A) | Inverting input A | High-impedance node (10¹³Ω); requires current limiting if driven beyond supply rails by >0.5V. |
| 3 (+IN A) | Non-inverting input A | Accepts signals from V– to V+; zero-crossover design ensures monotonic offset vs. common-mode voltage. |
| 4 (V–) | Negative supply | Ground reference for single-supply operation; ties to system GND in most portable applications. |
| 5 (+IN B) | Non-inverting input B | Independent channel input; enables dual-sensor readout or differential-to-single-ended conversion. |
| 6 (–IN B) | Inverting input B | Matches Pin 2 performance; supports matched feedback networks for instrumentation-grade gain stability. |
| 7 (OUT B) | Amplifier B output | Electrically isolated from OUT A; allows independent signal paths without crosstalk (140dB dc channel separation). |
| 8 (V+) | Positive supply | Accepts 1.8V–5.5V; bypass capacitor (0.1µF) required adjacent to pin for stability and noise rejection. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-crossover architecture | Eliminates input-stage crossover distortion at low supply voltages (<3V), enabling accurate DC amplification across full input common-mode range. |
| Rail-to-rail I/O | Supports signal acquisition from 0V to V+ without external level-shifting, preserving SNR in 1.8V/2.5V/3.3V systems. |
| 700nA per channel IQ | Reduces battery drain to sub-microamp levels-critical for multi-year deployment in wireless sensor nodes and wearables. |
| 250µV max VOS, 0.4µV/°C drift | Minimizes calibration overhead and thermal drift error in medical-grade temperature or pressure sensing. |
| 12kHz GBW with 0.005V/µs slew rate | Provides adequate bandwidth for slow-varying biosignals (ECG, EEG) while maintaining ultra-low power consumption. |
| 10pA input bias current | Enables high-gain, high-impedance transducer interfaces (e.g., thermopiles, photodiodes) without significant offset error. |
Applications
| Battery Voltage Monitoring | Low-Power Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Real-time tracking of single-cell Li-ion or alkaline battery voltage during deep-sleep mode in IoT endpoints. IC Role / Device Role / Timing Role: Dual op amp configured as precision window comparator (A1/A2) with hysteresis to trigger wake-up or shutdown at defined thresholds (e.g., 2.0V–2.8V). Use Value: 700nA per channel IQ ensures monitoring circuit consumes <1.5µA total, extending battery life by >3 years versus conventional comparators. |
Use Scenario: Amplifying microvolt-level outputs from thermistor, RTD, or strain gauge bridges in portable diagnostic devices. IC Role / Device Role / Timing Role: Dual op amp used in 3-op-amp instrumentation topology (Figure 29), providing programmable gain and common-mode rejection. Use Value: 114dB CMRR and 250µV VOS enable <0.1% linearity error over –40°C to +85°C without trimming. |
| Medical Instrumentation Front-End | Portable Test Equipment |
|
Use Scenario: Biopotential signal acquisition (ECG, EMG) in handheld monitors with dry-electrode interfaces. IC Role / Device Role / Timing Role: Single amplifier configured as high-input-impedance buffer (Zin >10¹³Ω) followed by AC-coupled gain stage. Use Value: 10pA IB and 3.6µVPP 0.1–10Hz noise preserve signal fidelity for sub-10µV bio-potentials without active guarding. |
Use Scenario: Precision voltage reference buffering and DAC output amplification in handheld multimeters and calibrators. IC Role / Device Role / Timing Role: Dual op amp serving as reference follower (Channel A) and output driver (Channel B) with rail-to-rail swing. Use Value: 106dB PSRR rejects switching regulator noise; 10mV output swing from rail ensures full 0–3.3V DAC range utilization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC1540CMS8#TRPBF | Higher IQ (1.1µA), lower VOS (100µV), but only 1.2kHz GBW and no zero-crossover architecture. | Less suitable for low-frequency precision amplification where crossover distortion must be eliminated. | Prefer when lowest possible offset dominates over bandwidth and distortion requirements. |
| MCP6V81-E/SN | Lower IQ (600nA), higher GBW (150kHz), but VOS (150µV) specified only at 5V-not guaranteed at 1.8V. | Not validated for sub-2V operation; risk of degraded CMRR and increased crossover distortion at 1.8V. | Prefer for higher-speed applications above 2.5V supply; avoid for 1.8V battery-monitoring designs. |
Compared with LTC1540CMS8#TRPBF and MCP6V81-E/SN, the OPA2369AIDCNT uniquely guarantees zero-crossover performance and 250µV VOS across its full 1.8V–5.5V supply range-making it the only choice for precision, low-voltage, rail-to-rail amplification where input-stage linearity is non-negotiable.
Availability
OPA2369AIDCNT is available at Aetrix Electronics and suitable for battery-powered instruments, portable medical devices, and low-power sensor signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for OPA2369AIDCNT 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 amps and low-power signal chain solutions.
The OPA2369AIDCNT 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 OPA2369AIDCNT?
The OPA2369AIDCNT is specified for operation from –40°C to +85°C (industrial grade), with absolute maximum junction temperature of +150°C. Extended ambient operation up to +125°C is supported under derated conditions per thermal resistance data (θJA = 223°C/W for SOT-23).
Does the OPA2369AIDCNT require external compensation for unity-gain stability?
No, the OPA2369AIDCNT is internally compensated and stable at unity gain (G = +1). It drives capacitive loads up to 100pF without oscillation, as verified in Figure 20 of the SBOS414B datasheet. A 0.1µF supply bypass capacitor is mandatory for stability.
Can the OPA2369AIDCNT be used with a 1.8V single supply in rail-to-rail input configurations?
Yes-the OPA2369AIDCNT's input common-mode range extends from V– to V+, and its zero-crossover architecture ensures monotonic behavior across the full 0V–1.8V input range. CMRR remains ≥100dB over this range, enabling accurate DC-coupled amplification.
What is the recommended PCB layout practice for the OPA2369AIDCNT's power pins?
Place a 0.1µF ceramic bypass capacitor between V+ and V– pins, located ≤2mm from the device with short, wide traces. Use solid ground plane beneath the SOT-23-8 footprint, and avoid routing noisy digital signals near input traces to preserve 114dB CMRR performance.
How does the OPA2369AIDCNT's channel separation affect dual-channel applications?
The OPA2369AIDCNT achieves 140dB dc channel separation, meaning leakage from one amplifier's output to the other's input is <10⁻¹⁴ times the signal amplitude. This enables independent signal paths-for example, simultaneous ECG lead amplification and battery monitoring-without measurable crosstalk.
OPA2369AIDCNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
OPA2369AIDCNT FAQ
1.How can I place an order for OPA2369AIDCNT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2369AIDCNT 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 OPA2369AIDCNT reliable?
The price and inventory of OPA2369AIDCNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2369AIDCNT is usually 5 days.
3.What payment methods are accepted for OPA2369AIDCNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2369AIDCNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2369AIDCNT?
OPA2369AIDCNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2369AIDCNT 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 OPA2369AIDCNT?
For technical support, including OPA2369AIDCNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2369AIDCNT requirements.
6.How does Aetrix verify that OPA2369AIDCNT is sourced from the original manufacturer or authorized distributors?
All OPA2369AIDCNT 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 OPA2369AIDCNT meets industry standards.
7.What is the process for return or replacement of OPA2369AIDCNT?
All OPA2369AIDCNT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2369AIDCNT, 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 OPA2369AIDCNT part is unused and in its original packaging.
Return procedure for OPA2369AIDCNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2369AIDCNT 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…
