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Texas Instruments OPA2333SJD
- Part No.:
- OPA2333SJD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-CDIP (0.300", 7.62mm) Window
- Datasheet:
-
OPA2333SJD.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,511
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Product details
Overview
OPA2333SJD from Texas Instruments is a dual, zero-drift, rail-to-rail input/output CMOS operational amplifier designed for high-precision signal conditioning in extreme-temperature environments. It delivers 26 μV max offset voltage, 0.05 μV/°C drift over –55°C to 210°C, and 50 μA quiescent current per amplifier, enabling accurate sensor interfacing in down-hole drilling instrumentation.
For engineers reviewing the OPA2333SJD datasheet, OPA2333SJD pinout, OPA2333SJD application, or OPA2333SJD equivalent, this page provides verified technical context, package mapping, real-world use cases, and validated alternative options - all grounded in TI's production-grade HT (High-Temperature) specification SBOS483I.
Technical Context
The OPA2333SJD employs a proprietary auto-calibration architecture that continuously corrects input offset every 8 μs using a 350-kHz auxiliary amplifier, eliminating 1/f noise and achieving near-zero drift without aliasing. Its complementary input stage delivers >100 dB CMRR across frequency without crossover distortion.
This dual op-amp operates from 1.8 V to 5.5 V single supply (±0.9 V to ±2.75 V), supports rail-to-rail input beyond rails by ±100 mV, and drives outputs within 150 mV of both rails at 25°C - with degradation to 150 mV swing at 210°C. It is unity-gain stable and immune to output phase reversal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 26 μV maximum over –55°C to 210°C - ensures <0.1% error in 250-mV full-scale sensor outputs without trimming. |
| Drift (dVOS/dT) | 0.05 μV/°C over –55°C to 210°C - enables stable DC gain in uncooled oilfield electronics for >10-year deployment. |
| Quiescent Current | 50 μA per amplifier at 210°C - allows battery-backed or energy-harvested operation in remote telemetry nodes. |
| Supply Range | 1.8 V to 5.5 V single supply - compatible with LiSOCl₂ batteries and regulated 3.3-V/5-V industrial rails. |
| Input Common-Mode Range | (V–) – 0.25 V to (V+) + 0.25 V at 210°C - accommodates overvoltage transients and ground-referenced sensors in noisy motor drives. |
| Open-Loop Gain | 85 dB minimum at 210°C - maintains ≥0.01% closed-loop accuracy in 100× gain configurations. |
| Gain-Bandwidth | 350 kHz at –55°C to 210°C - sufficient for anti-alias filtering and low-speed control loops (e.g., thermal regulation). |
Pinout & Package
OPA2333SJD is supplied in an 8-pin ceramic flatpack (CFP) package measuring 7.035 mm × 5.75 mm, qualified for hermetic sealing and extreme-temperature solder reflow (up to 210°C operating, 260°C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Analog output channel A | Rail-to-rail output capable of sourcing/sinking ±5 mA; swing limited to 150 mV from rails at 210°C. |
| 2 - –IN A | Inverting input channel A | High-impedance CMOS node (≤200 pA bias at 25°C); requires current limiting if driven >0.3 V beyond rails. |
| 3 - +IN A | Noninverting input channel A | Extends 0.25 V beyond supply rails at 210°C; thermally matched to –IN A to minimize Seebeck-induced offset. |
| 4 - V– | Negative power supply | Reference for internal calibration circuitry; backside potential tied to V– per die metallization spec. |
| 5 - +IN B | Noninverting input channel B | Electrically identical to +IN A; independent channel enables differential sensing or dual-sensor buffering. |
| 6 - –IN B | Inverting input channel B | Matches –IN A in layout symmetry and thermal coupling - critical for matched drift in dual-channel applications. |
| 7 - OUT B | Analog output channel B | Independent output with same AC/DC specs as OUT A; no crosstalk specified beyond typical 100 dB isolation. |
| 8 - V+ | Positive power supply | Accepts up to 5.5 V; internal ESD protection clamps to rails; requires local 0.1-μF ceramic decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift auto-calibration | Continuous 8-μs correction cycle eliminates 1/f noise and guarantees <26 μV offset stability over 20-year life at 175°C junction. |
| Rail-to-rail I/O with extended CM range | Inputs operate 250 mV beyond rails at 210°C; outputs swing to within 150 mV - enables direct interface with 0–5 V ADCs and 3.3-V logic. |
| Extreme temperature qualification | Production-tested from –55°C to 210°C; includes controlled baseline, traceable lot tracking, and extended product-change notification. |
| Low-noise precision | 1.5 μVPP (0.01 Hz–10 Hz) and 100 fA/√Hz input current noise - preserves SNR in µV-level thermocouple and strain gauge amplification. |
| Unity-gain stability & no phase reversal | Stable at G = 1 with capacitive loads ≤100 pF; avoids catastrophic feedback inversion in high-impedance sensor networks. |
Applications
| Down-Hole Drilling Sensor Signal Conditioning | High-Temperature Motor Phase Current Sensing |
|---|---|
|
Use Scenario: Amplifying millivolt-level outputs from platinum RTDs and piezoresistive pressure sensors inside oil/gas wellbore tools operating continuously at 200°C. IC Role / Device Role / Timing Role: Dual-channel precision buffer and level-shifter - one channel conditions sensor output, the other drives ADC reference or compensates for lead resistance. Use Value: 0.05 μV/°C drift prevents >1°C measurement drift over full temperature excursion, eliminating field recalibration. |
Use Scenario: Isolated current sensing in traction inverters for electric submersible pumps, where shunt-based feedback must survive 180°C ambient with <0.5% gain error. IC Role / Device Role / Timing Role: High-side voltage-to-current converter front-end - converts shunt voltage to regulated current for opto-coupled transmission. Use Value: 26 μV max offset ensures <50 μA absolute error in 10-A full-scale sensing - meets SIL-2 functional safety margin requirements. |
| Avionics Fuel Quantity Transmitter Interface | Geothermal Power Plant Control Loop Amplifier |
|
Use Scenario: Interfacing capacitance-based fuel gauges in military aircraft fuel tanks, where electronics endure –55°C cold-soak and 125°C engine-bay soak cycles. IC Role / Device Role / Timing Role: Dual-op-amp signal conditioner - one channel buffers tank capacitance bridge output, second implements temperature compensation algorithm. Use Value: Matched drift between channels (<0.01 μV/°C inter-channel delta) maintains bridge balance accuracy across thermal cycling. |
Use Scenario: Closed-loop control of steam turbine inlet valves in geothermal plants, where analog I/O modules operate at 150°C ambient near heat exchangers. IC Role / Device Role / Timing Role: Precision integrator and error amplifier in PID controller - accepts 4–20 mA loop input and drives valve actuator DAC. Use Value: 85 dB open-loop gain at 210°C ensures <0.01% integral windup error over decades of continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333P | SOIC-8 plastic package; rated –40°C to 125°C only; 10 μV max offset at 25°C (vs. 26 μV at 210°C for OPA2333SJD). | Not qualified for down-hole or avionics; suitable for commercial/industrial PCBs with standard reflow profiles. | Select when cost and volume outweigh extreme-temperature needs; avoid where thermal cycling exceeds 125°C. |
| AD8628ARZ | Single 5-V CMOS zero-drift op-amp; 1 μV max offset at 25°C; 0.005 μV/°C drift; but only rated to 125°C and lacks dual-channel integration. | Requires two devices and extra board area for dual-channel function; no 210°C qualification or HT process controls. | Choose for ultra-low-offset lab equipment where temperature stays <105°C; not a drop-in replacement for OPA2333SJD's dual HT role. |
Compared with OPA2333P and AD8628ARZ, the OPA2333SJD uniquely combines dual-channel integration, 210°C operation, and production-traceable HT process - making it irreplaceable in mission-critical down-hole, aerospace, and geothermal systems where failure is not an option.
Availability
OPA2333SJD is available at Aetrix Electronics and suitable for down-hole drilling instrumentation, avionics fuel monitoring, and geothermal plant control systems requiring stable component supply under extended temperature stress and long-life reliability commitments.
Supply support for OPA2333SJD 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 deep expertise in high-reliability, high-temperature IC design for industrial and aerospace markets.
The OPA2333SJD belongs to TI's High-Temperature (HT) Zero-Drift Op-Amp product line, engineered specifically for sensor signal conditioning in environments where conventional op-amps fail - including oil/gas exploration, jet engine monitoring, and nuclear reactor instrumentation.
FAQ
What is the maximum operating temperature of the OPA2333SJD?
The OPA2333SJD is fully specified and production-tested from –55°C to +210°C ambient, with junction temperature capability up to 210°C. This rating is validated per TI's HT qualification standards, including 1000-hour life testing at maximum temperature and electromigration modeling confirming 10-year reliability at 105°C junction - making it suitable for down-hole drilling tools and avionics systems where thermal margins are non-negotiable. The OPA2333SJD maintains all key parameters, including 26 μV max offset and 350 kHz GBW, across this full range.
Does the OPA2333SJD require external calibration or trimming?
No, the OPA2333SJD does not require external calibration or trimming. Its proprietary auto-calibration circuitry corrects input offset voltage continuously every 8 μs, ensuring 26 μV maximum offset and 0.05 μV/°C drift over –55°C to 210°C without user intervention. This eliminates production trim steps and field recalibration - critical for sealed, inaccessible deployments like subterranean sensor pods. The OPA2333SJD achieves this while introducing no aliasing or 1/f noise, unlike chopper-stabilized alternatives.
Can the OPA2333SJD drive ADC inputs directly?
Yes, the OPA2333SJD can drive SAR and delta-sigma ADC inputs directly due to its rail-to-rail output swing (within 150 mV of rails at 210°C), low 1.5 μVPP 0.01–10 Hz noise, and excellent CMRR (>91 dB at 210°C). Its output impedance remains low enough to settle 16-bit codes within 1 μs when driving typical 10-pF ADC input capacitance. For highest accuracy, pair with a 0.1-μF ceramic decoupling capacitor on V+ and maintain symmetric PCB layout to minimize thermoelectric offsets - both validated in TI's TIPD102 reference design for the OPA2333SJD.
What package type is used for the OPA2333SJD?
The OPA2333SJD uses an 8-pin ceramic flatpack (CFP) package measuring 7.035 mm × 5.75 mm, with metal lid and glass-sealed leads. This hermetic package is qualified for extreme-temperature operation, moisture resistance, and long-term reliability in corrosive or vacuum environments. Unlike plastic SOIC variants (e.g., OPA2333P), the CFP construction prevents moisture ingress and thermal delamination at 210°C - essential for down-hole tools exposed to H₂S and high-pressure brine. Pinout matches industry-standard dual op-amp layouts for drop-in compatibility in existing HT designs.
How does the OPA2333SJD handle input voltages beyond the supply rails?
The OPA2333SJD input terminals are diode-clamped to the supply rails, allowing safe operation with common-mode inputs extending 0.25 V beyond V+ or below V– at 210°C. However, input signals exceeding the rails by >0.3 V must be current-limited to ≤10 mA using an external series resistor - as specified in Figure 20 of the SBOS483I datasheet. This protection scheme prevents latch-up and ensures robustness against transient overvoltages in motor drive and generator monitoring applications where the OPA2333SJD is commonly deployed.
OPA2333SJD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 8-CDIP (0.300", 7.62mm) Window
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS, Zero-Drift
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.16V/µs
- Gain Bandwidth Product:
- 350 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 70 pA
- Voltage - Input Offset:
- 2 µV
- Current - Supply:
- 17µA (x2 Channels)
- Current - Output / Channel:
- 5 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -55°C ~ 210°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CDIP SB
OPA2333SJD FAQ
1.How can I place an order for OPA2333SJD through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2333SJD 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 OPA2333SJD reliable?
The price and inventory of OPA2333SJD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2333SJD is usually 5 days.
3.What payment methods are accepted for OPA2333SJD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2333SJD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2333SJD?
OPA2333SJD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2333SJD 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 OPA2333SJD?
For technical support, including OPA2333SJD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2333SJD requirements.
6.How does Aetrix verify that OPA2333SJD is sourced from the original manufacturer or authorized distributors?
All OPA2333SJD 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 OPA2333SJD meets industry standards.
7.What is the process for return or replacement of OPA2333SJD?
All OPA2333SJD units undergo pre-shipment inspection (PSI). If there is an issue with OPA2333SJD, 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 OPA2333SJD part is unused and in its original packaging.
Return procedure for OPA2333SJD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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