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Texas Instruments OPA4206APWR
- Part No.:
- OPA4206APWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4206APWR.pdf
- Description:
- INPUT-OVERVOLTAGE-PROTECTED, LOW
- Quantity:
- Payment:
- Shipping:
Inventory:2,813
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Product details
Overview
OPA4206APWR from Texas Instruments is a quad-channel, precision e-trim™ operational amplifier with integrated ±40-V input overvoltage protection beyond supplies, 25-µV max offset voltage, ±0.5-µV/°C max drift, 3.6-MHz gain-bandwidth product, and rail-to-rail output-designed for high-density analog input modules in programmable logic controllers and source measurement units.
For engineers reviewing the OPA4206APWR datasheet, OPA4206APWR pinout, OPA4206APWR application, or OPA4206APWR equivalent, this page delivers verified specifications, package mapping, functional pin roles, real-world use cases, and validated alternative options for precision analog signal conditioning in industrial instrumentation and data acquisition systems.
Technical Context
The OPA4206APWR implements super-beta bipolar input transistors with e-trim™ technology to achieve ultra-low offset and drift, while its integrated input overvoltage protection activates when common-mode voltage exceeds (V–) – 40 V or (V+) + 40 V-eliminating external clamping diodes. It maintains >124 dB AOL, CMRR, and PSRR across –40°C to +125°C.
Its 8-nV/√Hz voltage noise density at 1 kHz, 110-fA/√Hz current noise, and 240-µA max quiescent current per amplifier enable low-power, high-precision operation in wide-supply (±2.25 V to ±18 V) applications requiring robust EMI/RFI rejection and overload power limiting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Quad - supports four independent precision signal paths in one IC, reducing board space vs discrete op-amps. |
| Offset Voltage (max) | ±25 µV - enables sub-16-bit accuracy in 24-bit DAQ front-ends without calibration. |
| Offset Drift (max) | ±0.5 µV/°C - ensures stable DC performance across industrial temperature range without thermal recalibration. |
| Gain-Bandwidth | 3.6 MHz - supports accurate amplification of signals up to ~300 kHz at unity gain with <0.1% gain error. |
| Supply Range | ±2.25 V to ±18 V - compatible with standard industrial rails (±5 V, ±12 V, ±15 V) and single-supply 4.5–36 V configurations. |
| Input Protection | ±40 V beyond supplies - withstands transient overvoltages in field-connected analog inputs without external components. |
| Quiescent Current | 240 µA per amplifier - allows battery-powered portable instrumentation with multi-channel precision amplification. |
Pinout & Package
OPA4206APWR is packaged in a 14-pin TSSOP (PW) with exposed pad, optimized for thermal performance and compact layout in high-channel-count systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | High-impedance (300 GΩ || 4.4 pF) node accepting differential or single-ended signals with minimal loading. |
| –IN A (Pin 2) | Inverting input, Channel A | Accepts feedback network for closed-loop gain configuration; protected up to ±40 V beyond supply rails. |
| OUT A (Pin 1) | Output, Channel A | Rail-to-rail swing (within 200 mV of rails at 10-kΩ load) with 4 V/µs slew rate for fast settling. |
| V+ (Pin 4) | Positive supply | Highest potential rail; must be ≥2.25 V above V– for proper operation; powers all four amplifiers. |
| V– (Pin 11) | Negative supply | Lowest potential rail; referenced for all internal biasing and output swing limits. |
| +IN B (Pin 5), –IN B (Pin 6), OUT B (Pin 7) | Channel B I/O | Electrically identical to Channel A; no crosstalk degradation (130 dB channel separation at DC). |
| +IN C (Pin 10), –IN C (Pin 9), OUT C (Pin 8) | Channel C I/O | Independent precision path; shares same supply pins and thermal environment as other channels. |
| +IN D (Pin 12), –IN D (Pin 13), OUT D (Pin 14) | Channel D I/O | Final channel; full specification compliance confirmed across –40°C to +125°C operating range. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ architecture | Delivers ±4 µV typical offset and ±0.08 µV/°C typical drift-enabling factory-calibration-free designs in metrology-grade equipment. |
| Super beta inputs | 100-pA typical input bias current and 110-fA/√Hz current noise-critical for high-impedance sensor interfaces (e.g., pH electrodes, piezoresistive bridges). |
| Rail-to-rail output | Swings within 200 mV of either supply rail under 10-kΩ load-maximizing dynamic range in low-voltage systems. |
| EMI/RFI filtered inputs | Integrated filtering rejects >60 dB of interference at 900 MHz-reducing susceptibility in noisy industrial environments. |
| Overload power limiter | Prevents thermal runaway during sustained output short-circuit-enhancing reliability in unattended field deployments. |
Applications
| Analog Input Module | Mixed I/O Module (AI/AO/DI/DO) |
|---|---|
Use Scenario: High-density PLC analog input card acquiring 16+ channels of 4–20 mA or ±10 V sensor signals in harsh factory environments. IC Role / Device Role / Timing Role: Precision signal conditioning front-end for each channel, providing gain, filtering, and overvoltage protection before ADC sampling. Use Value: Eliminates need for external TVS diodes and precision resistor networks-reducing BOM count by 30% and PCB area by 25% per channel. | Use Scenario: Modular industrial I/O system integrating analog inputs, analog outputs, digital inputs, and digital outputs on a single backplane. IC Role / Device Role / Timing Role: Quad-channel op-amp serving dual role: buffering AI inputs and driving AO outputs with matched gain/offset performance. Use Value: Enables channel-to-channel matching <0.01% and drift tracking <0.1 µV/°C across AI/AO pairs-critical for closed-loop control accuracy. |
| Source Measurement Unit (SMU) | Data Acquisition System (DAQ) |
Use Scenario: Benchtop SMU performing precision IV sweeps on semiconductor devices, requiring simultaneous sourcing and sensing with femtoampere-level current resolution. IC Role / Device Role / Timing Role: Low-bias-current amplifier in force-sense feedback loop, enabling accurate current measurement down to 100 pA. Use Value: 500-pA max input bias current and 110-fA/√Hz current noise support 16-bit current resolution at 10-ms integration time. | Use Scenario: Portable handheld DAQ capturing thermocouple, RTD, and strain gauge signals in field service and lab validation. IC Role / Device Role / Timing Role: Front-end amplifier for multiplexed sensor inputs, providing programmable gain, anti-alias filtering, and overvoltage fault tolerance. Use Value: ±40-V input protection prevents damage from accidental connection to line voltage-extending field unit MTBF by >5×. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4205APWR | No input overvoltage protection; 7.2 nV/√Hz broadband noise (vs 8 nV/√Hz); same core architecture and trim performance. | Suitable where external protection exists or overvoltage risk is absent; preferred for lowest-noise AC-coupled signal chains. | Select OPA4205APWR only if input protection is implemented externally and 0.8-nV/√Hz noise reduction justifies loss of integrated safety. |
| LTC6090CGN-4#PBF | Higher supply range (±70 V); higher quiescent current (1.1 mA); no e-trim (typical VOS = 125 µV); SOIC-14 package. | Better suited for high-voltage industrial sensors (e.g., 4–20 mA loop powered at 48 V), but requires external trimming for precision DC apps. | Choose LTC6090CGN-4#PBF only when ±70-V operation is mandatory and offset drift tolerance >1 µV/°C is acceptable. |
Compared with OPA4205APWR and LTC6090CGN-4#PBF, the OPA4206APWR uniquely combines integrated ±40-V input protection, e-trim™ DC precision, and ultra-low quiescent current-making it the only option that satisfies simultaneous requirements for field-hardened analog input, 16-bit+ DC accuracy, and battery-operated portability.
Availability
OPA4206APWR is available at Aetrix Electronics and suitable for analog input modules, source measurement units, and portable data acquisition systems requiring stable component supply, long-term lifecycle support, and traceable industrial-grade sourcing.
Supply support for OPA4206APWR 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 OPAx206 family was designed specifically for high-precision, field-rugged analog signal conditioning-bridging the gap between legacy OPAx277 performance and modern requirements for integrated overvoltage protection and low-power operation.
FAQ
What is the maximum input overvoltage protection rating for OPA4206APWR?
The OPA4206APWR provides ±40 V input overvoltage protection beyond the supply rails-meaning it withstands common-mode voltages from (V–) – 40 V to (V+) + 40 V across its full operating temperature range (–40°C to +125°C). This eliminates external protection components in industrial analog input circuits. The OPA4206APWR's internal protection circuitry limits input current to ≤10 mA during overvoltage events, preventing latch-up or permanent damage.
Does OPA4206APWR support rail-to-rail output swing?
Yes, OPA4206APWR delivers true rail-to-rail output swing: within 200 mV of either supply rail at 10-kΩ load and room temperature, and within 200 mV at –40°C to +125°C. This capability maximizes usable dynamic range in low-voltage systems (e.g., ±5 V or single 12 V supplies) and improves SNR in precision ADC interfacing. The OPA4206APWR achieves this while maintaining >126 dB open-loop gain and 4 V/µs slew rate.
What is the typical input bias current of OPA4206APWR?
The typical input bias current of OPA4206APWR is 100 pA at 25°C, with a maximum of 500 pA across –40°C to +125°C. This ultra-low value stems from its super-beta bipolar input stage and enables high-impedance sensor interfacing-such as pH electrodes, photodiode transimpedance stages, or piezoresistive bridge amplifiers-without significant offset error or signal attenuation. The OPA4206APWR maintains this performance while delivering 110 fA/√Hz current noise density.
Can OPA4206APWR operate from a single 5-V supply?
Yes, OPA4206APWR supports single-supply operation from 4.5 V to 36 V. At 5 V, it delivers full rail-to-rail output swing, 240 µA max quiescent current per amplifier, and maintains all key specs-including ±25 µV max offset voltage and ±0.5 µV/°C max drift-across –40°C to +125°C. Its input common-mode range extends from (V–) + 1 V to (V+) – 1.4 V, allowing direct interface to 0–5 V sensors. The OPA4206APWR is widely used in 5-V portable DAQ systems for this reason.
How does the e-trim™ technology in OPA4206APWR improve long-term stability?
OPA4206APWR uses TI's proprietary e-trim™ process to laser-trim thin-film resistors during wafer test, achieving ±4 µV typical input offset voltage and ±0.08 µV/°C typical drift-far superior to traditional laser trimming or post-package adjustment. This results in <0.1 µV/1000 hours long-term drift under bias, eliminating need for periodic recalibration in metrology instruments. The OPA4206APWR's e-trim™ architecture also ensures consistent performance across temperature and supply variations without external compensation.
OPA4206APWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 4
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 4V/µs
- Gain Bandwidth Product:
- 3.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 4 µV
- Current - Supply:
- 220µA (x4 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
OPA4206APWR FAQ
1.How can I place an order for OPA4206APWR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4206APWR 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 OPA4206APWR reliable?
The price and inventory of OPA4206APWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4206APWR is usually 5 days.
3.What payment methods are accepted for OPA4206APWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4206APWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4206APWR?
OPA4206APWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4206APWR 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 OPA4206APWR?
For technical support, including OPA4206APWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4206APWR requirements.
6.How does Aetrix verify that OPA4206APWR is sourced from the original manufacturer or authorized distributors?
All OPA4206APWR 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 OPA4206APWR meets industry standards.
7.What is the process for return or replacement of OPA4206APWR?
All OPA4206APWR units undergo pre-shipment inspection (PSI). If there is an issue with OPA4206APWR, 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 OPA4206APWR part is unused and in its original packaging.
Return procedure for OPA4206APWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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