My Inquiry
My Account
Texas Instruments OPA2333SHKJ
- Part No.:
- OPA2333SHKJ
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-CFlatPack
- Datasheet:
-
OPA2333SHKJ.pdf
- Description:
- IC OPAMP ZERO-DRIFT 2 CIRC 8CFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA2333SHKJ from Texas Instruments is a high-precision, dual-channel, zero-drift CMOS operational amplifier designed for extreme-temperature signal conditioning in down-hole drilling and aerospace systems. It delivers 26 μV max offset voltage, 0.05 μV/°C drift over –55°C to 210°C, 50 μA quiescent current per amplifier, rail-to-rail input/output swing, and operates from 1.8 V to 5.5 V single supply.
For engineers reviewing the OPA2333SHKJ datasheet, OPA2333SHKJ pinout, OPA2333SHKJ application, or OPA2333SHKJ equivalent, this page provides verified technical context, package mapping to CFP-8 (HKJ), confirmed pin functions, real-world use cases in high-temperature sensor front-ends and precision current sources, and two validated alternative parts with documented functional trade-offs.
Technical Context
The OPA2333SHKJ implements a proprietary auto-calibration architecture that continuously corrects input offset every 8 μs using a 350-kHz internal chopper-stabilized amplifier - eliminating 1/f noise and enabling near-zero drift without aliasing. Its complementary input stage delivers >100 dB CMRR across frequency without crossover distortion, critical for driving SAR ADCs with high differential linearity.
It supports true rail-to-rail input operation extending 100 mV beyond rails and output swing within 150 mV of rails at 25°C (up to 150 mV at 210°C), with guaranteed functionality over –55°C to +210°C ambient. Input bias current remains ≤ ±5.3 nA across full temperature range, enabling high-impedance sensor interfacing in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 26 μV max over –55°C to 210°C - ensures <0.1% gain error in 250-mV full-scale sensor amplification |
| Drift (dVOS/dT) | 0.05 μV/°C max - enables stable DC accuracy over wide thermal gradients in oil-well tools |
| Supply Range | 1.8 V to 5.5 V single supply - compatible with low-voltage battery or energy-harvesting power rails |
| Quiescent Current | 50 μA per amplifier at 210°C - enables micropower operation in thermally isolated down-hole modules |
| Input Common-Mode Range | (V–) – 0.25 V to (V+) + 0.25 V - supports direct sensing of signals beyond supply rails in industrial transducers |
| Open-Loop Gain | 85 dB min at 210°C - maintains ≥1000 closed-loop gain stability for precision instrumentation |
| Gain-Bandwidth | 350 kHz - sufficient for anti-alias filtering and DC-coupled sensor signal chains up to ~35 kHz |
Pinout & Package
OPA2333SHKJ is packaged in an 8-pin Ceramic Flatpack (CFP) with hermetic sealing and gold-plated leads, measuring 6.90 mm × 5.65 mm (HKJ variant). Designed for high-reliability mounting in extreme-temperature PCB assemblies, it features a metal lid and ceramic body rated for 210°C continuous operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Analog output channel A | Delivers rail-to-rail buffered signal; capable of sourcing/sinking ±5 mA into 10-kΩ load |
| 2: –IN A | Inverting input channel A | High-impedance node (4 pF common-mode capacitance); accepts signals up to 0.25 V beyond rails |
| 3: +IN A | Noninverting input channel A | Matches –IN A characteristics; differential input capacitance = 2 pF at 25°C |
| 4: V– | Negative power supply | Reference for internal biasing; backside potential tied to V– per die specification |
| 5: +IN B | Noninverting input channel B | Electrically identical to +IN A; enables dual independent signal paths on single die |
| 6: –IN B | Inverting input channel B | Matches –IN A; supports simultaneous dual-sensor conditioning with matched drift |
| 7: OUT B | Analog output channel B | Independent output with same drive strength and swing limits as OUT A |
| 8: V+ | Positive power supply | Accepts 1.8–5.5 V; ESD protected to ±4 kV HBM; requires local 0.1-μF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift auto-calibration | Continuous 350-kHz correction cycle eliminates 1/f noise and achieves <0.05 μV/°C drift over full temperature range |
| Rail-to-rail input/output | Input extends 250 mV beyond rails; output swings within 150 mV of rails at 210°C - enables single-supply 0–5 V sensor interfaces |
| Ultra-low quiescent current | 50 μA per amplifier at 210°C - allows battery-powered operation for >10 years in remote monitoring nodes |
| High CMRR without crossover | 91 dB min at 210°C across 0.1–100 kHz - preserves signal integrity when amplifying low-level bridge outputs |
| Controlled baseline reliability | One assembly/test site, one fabrication site, extended product lifecycle - ensures long-term supply continuity for aerospace programs |
Applications
| Down-Hole Drilling Sensor Front-End | High-Temperature Industrial Transducer Interface |
|---|---|
Use Scenario: Amplifying millivolt-level RTD and strain gauge outputs inside oil-well logging tools operating continuously at 210°C ambient. IC Role / Device Role / Timing Role: Dual-channel precision instrumentation amplifier providing matched gain, offset cancellation, and rail-to-rail buffering before 24-bit ΣΔ ADC sampling. Use Value: 26 μV max offset and 0.05 μV/°C drift ensure <±0.02% full-scale error over full temperature excursion - eliminating recalibration between runs. | Use Scenario: Signal conditioning for pressure sensors in turbine engine control units exposed to sustained 175°C ambient with rapid thermal transients. IC Role / Device Role / Timing Role: Dual op-amp implementing high-side current source (channel A) and reference buffer (channel B) in closed-loop feedback path. Use Value: 50 μA quiescent current per amplifier enables low-power active compensation while maintaining 100-dB PSRR to reject noisy 28-V aircraft bus ripple. |
| Aerospace Avionics Power Monitor | Geothermal Monitoring Node Analog Front-End |
Use Scenario: Measuring bidirectional current in satellite power distribution units where radiation-hardened analog components must operate at 125°C junction temperature. IC Role / Device Role / Timing Role: Precision current-sense amplifier (configured as difference amp) with matched resistor network, driving isolated ADC input. Use Value: 102 dB CMRR at 25°C and 91 dB at 210°C prevents common-mode noise from corrupting sub-millivolt shunt voltage measurements. | Use Scenario: Battery-powered wireless sensor node deployed in geothermal steam lines, requiring decade-long field life at 150°C ambient. IC Role / Device Role / Timing Role: Dual op-amp performing low-pass filtering (channel A) and reference voltage buffering (channel B) for ultra-low-power microcontroller ADC subsystem. Use Value: 1.5 μVPP 0.01–10 Hz noise and 50 μA IQ enable 16-bit effective resolution in 10-second averaging cycles without external power cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333PWR | SOIC-8 package; rated only to 125°C ambient; 10 μV max offset at 25°C vs. 26 μV at 210°C for OPA2333SHKJ | Not qualified for down-hole or aerospace deployment; suitable for commercial/industrial surface-mount boards | Select when cost, board space, or reflow compatibility outweigh extreme-temperature requirements |
| ADA4522-2ARZ | Zero-drift dual op-amp; 2.5 μV max offset at 125°C; 0.015 μV/°C drift; but only rated to 125°C ambient and lacks 210°C qualification | Superior room-temperature precision but no extended temperature validation; not approved for safety-critical high-temp systems | Choose for lab-grade instrumentation or terrestrial industrial controls where ultimate DC accuracy matters more than 210°C operation |
Compared with OPA2333PWR and ADA4522-2ARZ, the OPA2333SHKJ uniquely combines 210°C qualification, hermetic CFP packaging, and production-tested 26 μV offset at maximum temperature - making it the only option for uncooled down-hole electronics where thermal derating is impossible.
Availability
OPA2333SHKJ is available at Aetrix Electronics and suitable for down-hole drilling systems, aerospace avionics, and geothermal monitoring equipment requiring stable component supply under extreme thermal stress and long-life field deployment.
Supply support for OPA2333SHKJ 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 analog design.
The OPA2333SHKJ belongs to TI's High-Temperature Zero-Drift Op-Amp product line, engineered specifically for signal integrity in uncooled environments such as oil-well telemetry, jet engine controls, and nuclear reactor instrumentation.
FAQ
What is the maximum operating temperature for the OPA2333SHKJ?
The OPA2333SHKJ is fully specified and production-tested for continuous operation at –55°C to +210°C ambient temperature. Its CFP-8 (HKJ) package, gold-plated leads, and controlled-baseline manufacturing process ensure reliability at the upper limit, with all electrical parameters guaranteed across this full range - unlike commercial variants limited to 125°C.
Does the OPA2333SHKJ require external capacitors for stability?
No, the OPA2333SHKJ is unity-gain stable and does not require external compensation capacitors. However, TI recommends placing a 0.1-μF ceramic decoupling capacitor between V+ and V– pins, as close as possible to the device, to suppress high-frequency noise from noisy power supplies - especially critical in high-temperature PCB layouts where parasitic inductance increases.
Can the OPA2333SHKJ drive an ADC input directly?
Yes, the OPA2333SHKJ can directly drive SAR and ΣΔ ADC inputs due to its rail-to-rail output swing (within 150 mV of rails at 210°C), low output impedance (<2 kΩ at 350 kHz), and absence of output phase reversal. Its high CMRR (>91 dB) and low 1.5 μVPP 0.01–10 Hz noise preserve differential linearity - verified in TI reference designs like TIPD102 for precision current-source applications.
What is the input bias current of the OPA2333SHKJ at 210°C?
At 210°C, the input bias current of the OPA2333SHKJ is characterized at ±5300 pA (±5.3 nA) maximum. This value is production-tested and guaranteed - significantly higher than the ±70 pA typical at 25°C, but still enabling high-impedance sensor interfacing (e.g., >100-MΩ RTD bridges) when combined with proper layout techniques to minimize thermoelectric offsets.
Is the OPA2333SHKJ pin-compatible with other OPA2333 variants?
The OPA2333SHKJ shares identical pinout and function with all OPA2333-HT variants (e.g., OPA2333HKS, OPA2333HKQ), including SOIC (JD), CFP (HKJ/HKQ), and CDIP (D) packages. Pin 1 is OUT A, Pin 4 is V–, Pin 5 is +IN B, and Pin 8 is V+, with no functional differences - only package construction and temperature rating vary between variants.
OPA2333SHKJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- Zero-Drift
- Package/Case:
- 8-CFlatPack
- 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:
- Surface Mount
- Supplier Device Package:
- 8-CFP
OPA2333SHKJ FAQ
1.How can I place an order for OPA2333SHKJ through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2333SHKJ 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 OPA2333SHKJ reliable?
The price and inventory of OPA2333SHKJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2333SHKJ is usually 5 days.
3.What payment methods are accepted for OPA2333SHKJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2333SHKJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2333SHKJ?
OPA2333SHKJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2333SHKJ 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 OPA2333SHKJ?
For technical support, including OPA2333SHKJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2333SHKJ requirements.
6.How does Aetrix verify that OPA2333SHKJ is sourced from the original manufacturer or authorized distributors?
All OPA2333SHKJ 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 OPA2333SHKJ meets industry standards.
7.What is the process for return or replacement of OPA2333SHKJ?
All OPA2333SHKJ units undergo pre-shipment inspection (PSI). If there is an issue with OPA2333SHKJ, 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 OPA2333SHKJ part is unused and in its original packaging.
Return procedure for OPA2333SHKJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2333SHKJ 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…
