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Texas Instruments OPA336NJ/250
- Part No.:
- OPA336NJ/250
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA336NJ/250.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:782
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Product details
Overview
OPA336NJ/250 from Texas Instruments is a single-channel, rail-to-rail output, microPower CMOS operational amplifier designed for ultra-low-power, single-supply battery-operated systems. It delivers 125 µV max input offset voltage, 20 µA quiescent current per amplifier, and rail-to-rail output swing within 3 mV of the rails under 100 kΩ load - enabling precision signal conditioning in portable medical instruments and photodiode pre-amplifiers.
For engineers reviewing the OPA336NJ/250 datasheet, OPA336NJ/250 pinout, OPA336NJ/250 application, or OPA336NJ/250 equivalent, key selection criteria include its SOT-23-5 package, –40°C to +85°C temperature rating, 2.3V–5.5V supply range, and verified performance in high-impedance sensor interfaces where input bias current ≤1 pA and common-mode range extending to V– is critical.
Technical Context
The OPA336NJ/250 implements a unity-gain-stable CMOS input stage with input common-mode range from (V–) –0.2 V to (V+) –1 V and rail-to-rail output capable of sourcing/sinking ±5 mA. Its 115 dB open-loop gain and 100 kHz gain-bandwidth product support stable DC-coupled integrators and low-frequency transimpedance amplification.
Designed on a 0.6 µm CMOS process, it features ESD protection rated at 1000 V CDM (for NJ/UJ variants), reverse-battery protection, and specified operation down to 2.1 V supply - making it suitable for coin-cell-powered devices where supply headroom is constrained and long-term stability under thermal cycling is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.3 V to 5.5 V - fully specified; operates down to 2.1 V for extended battery life in low-voltage systems |
| Quiescent Current | 20 µA per amplifier - enables multi-year operation on a single CR2032 cell in always-on sensing nodes |
| Input Offset Voltage | ±125 µV max - ensures <1 LSB error in 12-bit ADC front-ends with gain ≤10 |
| Input Bias Current | ±1 pA max - preserves signal integrity in photodiode and pH electrode interfaces with >1 GΩ source impedance |
| Output Swing | Within 3 mV of rails (100 kΩ load) - maximizes dynamic range in 3.3 V or lower single-supply data acquisition |
| Gain-Bandwidth Product | 100 kHz - supports stable closed-loop gain ≥10 up to ~10 kHz for anti-aliasing and sensor filtering |
| Operating Temperature | –40°C to +85°C - qualified for industrial and portable medical equipment environments |
Pinout & Package
OPA336NJ/250 is packaged in a 5-pin SOT-23-5 surface-mount package (DBV drawing, marking J36), optimized for space-constrained PCB layouts in handheld diagnostics and wearable sensors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V–) | Negative supply / ground reference | Connects to system ground or negative rail; common-mode input extends to this pin |
| 2 (+In) | Non-inverting input | High-impedance CMOS node; accepts signals down to V– –0.2 V without phase inversion |
| 3 (Out) | Amplifier output | Rail-to-rail capable; drives capacitive loads up to 300 pF in unity-gain configuration |
| 4 (V+) | Positive supply | Accepts 2.3–5.5 V; bypass with 0.01 µF ceramic capacitor for stability |
| 5 (–In) | Inverting input | Differential pair input; matched to +In for low offset and drift |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 3 mV of V+ and V– under 100 kΩ load - preserves full ADC input range in low-voltage systems |
| MicroPower operation | 20 µA quiescent current enables >10-year battery life in intermittent-sampling IoT edge nodes |
| Ultra-low input bias current | 1 pA max eliminates leakage-induced offset in high-Z photodiode and electrochemical sensor circuits |
| Single-supply optimized input stage | Common-mode range includes V– - eliminates need for level-shifting in ground-referenced sensor front-ends |
| Unity-gain stable | No external compensation required - simplifies layout and reduces BOM count in compact portable designs |
Applications
| Battery-Powered Medical Sensors | Photodiode Pre-Amplifiers |
|---|---|
Use Scenario: Continuous glucose monitoring patch with integrated amperometric biosensor operating from a 3.0 V coin cell. IC Role / Device Role / Timing Role: Transimpedance amplifier converting nanoamp-level photocurrent into measurable voltage with minimal power draw. Use Value: 1 pA input bias prevents sensor current corruption; 20 µA IQ extends battery life beyond 18 months at 1-sample/minute duty cycle. | Use Scenario: Handheld spectrophotometer using silicon photodiode array for absorbance measurement in field diagnostics. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance pre-amplifier stage before programmable-gain instrumentation amplifier. Use Value: Rail-to-rail output delivers full 0–3.3 V swing to ADC; 125 µV offset ensures <0.01% baseline drift over temperature. |
| Precision Integrators | Portable Test Equipment |
Use Scenario: Battery-operated charge integrator for Coulomb counting in smart battery packs. IC Role / Device Role / Timing Role: Ultra-low-drift integrator core with feedback capacitor, rejecting supply ripple via high PSRR (100 µV/V). Use Value: 1.5 µV/°C offset drift minimizes integration error accumulation over wide ambient ranges; CMOS input avoids dielectric absorption artifacts. | Use Scenario: Pocket-sized multimeter with auto-ranging analog front-end and 12-bit SAR ADC. IC Role / Device Role / Timing Role: Buffer and level-shifter for high-impedance voltage measurement path, supporting 10 MΩ input impedance. Use Value: Input common-mode range to V– allows direct connection to floating test leads; 115 dB open-loop gain ensures <0.005% linearity error at 10 V full scale. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA336N/250 | Same electrical specs; SOT-23-5 package with A36 marking; rated for same –40°C to +85°C range but lacks CDM-1000V ESD rating | Not qualified for high-ESD environments (e.g., handheld clinical devices with frequent handling) | Select OPA336N/250 only if CDM robustness is not required and cost optimization is primary |
| MCP6001T-I/OT | 25 µA IQ, 150 µV offset, 1 MHz GBW; SOT-23-5; 1.8–6.0 V supply; no CDM rating published | Better bandwidth but higher power; less precise offset and drift than OPA336NJ/250 | Choose MCP6001T-I/OT when >100 kHz signal bandwidth is needed and 5 µA extra IQ is acceptable |
Compared with OPA336N/250 and MCP6001T-I/OT, the OPA336NJ/250 uniquely combines CDM-1000V ESD robustness, 125 µV offset, and 20 µA IQ in a production-qualified SOT-23-5 package - making it optimal for safety-critical, battery-limited medical sensors where reliability and precision cannot be compromised.
Availability
OPA336NJ/250 is available at Aetrix Electronics and suitable for battery-powered medical instruments, portable test equipment, photodiode pre-amplifiers, and precision integrators requiring stable component supply across extended production lifecycles.
Supply support for OPA336NJ/250 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The OPA336NJ/250 belongs to TI's microAmplifier™ series - engineered specifically for ultra-low-power, single-supply precision signal conditioning in portable and battery-constrained applications.
FAQ
What is the maximum capacitive load the OPA336NJ/250 can drive in unity-gain configuration?
The OPA336NJ/250 can reliably drive up to 300 pF in unity-gain configuration without external compensation. For larger loads (e.g., >500 pF), a 50–100 Ω series resistor inside the feedback loop is recommended to maintain phase margin and prevent ringing. This behavior is confirmed in TI's SBOS068C datasheet Figure 3 and Figure 5.
Does the OPA336NJ/250 support operation below 2.3 V supply?
Yes - the OPA336NJ/250 operates down to 2.1 V, though full specification (e.g., offset, gain, output swing) is guaranteed only from 2.3 V to 5.5 V. At 2.1 V, typical performance remains functional for low-power standby modes, but designers should verify parameters like GBW and slew rate under actual operating conditions.
What does the "J" in OPA336NJ/250 signify?
The "J" denotes the SOT-23-5 package variant with J36 marking and enhanced CDM ESD rating of 1000 V - distinct from the "N" (A36 marking, standard CDM) and "U" (SO-8) variants. This marking is documented in TI's SBOS068C package table and ordering addendum.
Is the OPA336NJ/250 pin-compatible with other OPA336 variants?
Yes - all OPA336 single-amplifier variants (N, NJ, U, UA) share identical 5-pin SOT-23-5 pinout: Pin 1 = V–, Pin 2 = +In, Pin 3 = Out, Pin 4 = V+, Pin 5 = –In. This allows direct substitution between NJ and N variants without PCB changes, provided ESD requirements align.
What is the thermal resistance (θJA) of the OPA336NJ/250 in its SOT-23-5 package?
The OPA336NJ/250 has a junction-to-ambient thermal resistance (θJA) of 200°C/W in the SOT-23-5 (DBV) package, as specified in the Electrical Characteristics table of SBOS068C. This value assumes standard JEDEC 2-layer board conditions and informs derating calculations for continuous operation at elevated ambient temperatures.
OPA336NJ/250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- MicroAmplifier™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 23µA
- Current - Output / Channel:
- 5 mA
- Voltage - Supply Span (Min):
- 2.3 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA336NJ/250 FAQ
1.How can I place an order for OPA336NJ/250 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA336NJ/250 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 OPA336NJ/250 reliable?
The price and inventory of OPA336NJ/250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA336NJ/250 is usually 5 days.
3.What payment methods are accepted for OPA336NJ/250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA336NJ/250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA336NJ/250?
OPA336NJ/250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA336NJ/250 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 OPA336NJ/250?
For technical support, including OPA336NJ/250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA336NJ/250 requirements.
6.How does Aetrix verify that OPA336NJ/250 is sourced from the original manufacturer or authorized distributors?
All OPA336NJ/250 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 OPA336NJ/250 meets industry standards.
7.What is the process for return or replacement of OPA336NJ/250?
All OPA336NJ/250 units undergo pre-shipment inspection (PSI). If there is an issue with OPA336NJ/250, 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 OPA336NJ/250 part is unused and in its original packaging.
Return procedure for OPA336NJ/250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA336NJ/250 Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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Texas Instruments
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM358P
Texas Instruments
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