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Texas Instruments OPA317IDCKT
- Part No.:
- OPA317IDCKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
OPA317IDCKT.pdf
- Description:
- IC OPAMP ZERO-DRIFT 1CIRC SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,104
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Product details
Overview
OPA317IDCKT from Texas Instruments is a single-channel, zero-drift, rail-to-rail input/output operational amplifier optimized for precision low-voltage applications. It delivers 20 µV typical offset voltage, 300 kHz gain-bandwidth product, and 35 µA maximum quiescent current across 1.8 V to 5.5 V supply, enabling high-accuracy signal conditioning in battery-powered medical sensors and electronic scales.
For engineers reviewing the OPA317IDCKT datasheet, OPA317IDCKT pinout, OPA317IDCKT application, or OPA317IDCKT equivalent, key selection criteria include its ±90 µV max offset over temperature, 108 dB CMRR, rail-to-rail I/O swing within 100 mV of rails, internal EMI filtering, and SC70-5 package compatibility with space-constrained portable instrumentation designs.
Technical Context
The OPA317IDCKT employs a proprietary auto-calibration architecture that corrects input offset every 8 µs using a time-continuous 125-kHz core amplifier-eliminating 1/f noise while maintaining near-zero drift (0.05 µV/°C) and stable DC accuracy. Its CMOS input stage draws only ±275 pA bias current and supports common-mode input voltages extending 0.1 V beyond both supply rails.
This device integrates internal EMI/RFI filtering with ~8 MHz cutoff and operates as a unity-gain-stable amplifier. The output stage drives ≥10 kΩ loads and achieves full rail-to-rail swing under load, making it suitable for direct interfacing with SAR ADCs and low-power analog front-ends without external level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V - enables operation directly from single-cell Li-ion or two-cell alkaline batteries without regulation |
| Offset Voltage (max) | ±90 µV at TA = –40°C to +125°C - ensures <0.004% error in 2.5 V full-scale current-sense applications |
| Gain Bandwidth | 300 kHz - supports stable closed-loop gain up to 100× for DC-coupled sensor amplification |
| Quiescent Current | 35 µA per amplifier - allows continuous operation for >1 year on a 200 mAh coin cell in handheld test equipment |
| CMRR | 108 dB typical - rejects >99.99% of common-mode interference in noisy industrial transducer interfaces |
| Input Voltage Range | (V–) – 0.1 V to (V+) + 0.1 V - eliminates input clamping diodes and simplifies single-supply design with wide dynamic range |
| Output Swing | Within 100 mV of rails at RL = 10 kΩ - delivers full 0–5 V output span from 5 V supply for ADC driver applications |
Pinout & Package
OPA317IDCKT is housed in a 5-pin SC70 package (1.25 mm × 2.00 mm), optimized for ultra-compact PCB layouts in portable instrumentation and wearables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting input | High-impedance CMOS node accepting signals from resistive sensors or thermocouples without loading |
| –IN (Pin 3) | Inverting input | Differential input terminal used for precision current sensing or transimpedance configurations |
| OUT (Pin 4) | Amplifier output | Class AB rail-to-rail output capable of sourcing/sinking ≥5 mA into 10 kΩ load |
| V+ (Pin 5) | Positive supply | Highest potential rail; must not exceed 7 V absolute maximum to prevent permanent damage |
| V– (Pin 2) | Negative supply | Lowest potential rail; supports true single-supply operation down to 0 V ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Zerø-Drift architecture | Auto-calibrates offset every 8 µs - maintains ±90 µV max over –40°C to +125°C without external trimming |
| Rail-to-rail I/O | Input extends 0.1 V beyond rails; output swings to within 100 mV - maximizes dynamic range in 1.8–5.5 V systems |
| Internal EMI filtering | Integrated 8 MHz low-pass filter on inputs - suppresses RF rectification effects from GSM/Bluetooth interference |
| Low quiescent current | 35 µA max per amplifier - enables always-on monitoring in battery-powered IoT endpoints |
| Unity-gain stability | No external compensation required - simplifies layout and reduces BOM count in gain-of-1 buffer applications |
Applications
| Medical Instrumentation | Electronic Scales |
|---|---|
Use Scenario: Amplifying microvolt-level signals from ECG electrodes in portable patient monitors. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with sub-100 µV offset and near-zero drift over body temperature range. Use Value: Enables accurate heartbeat detection without baseline wander or thermal drift-induced false alarms. | Use Scenario: Conditioning bridge outputs from strain-gauge load cells in handheld weighing devices. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail input amplifier driving 24-bit sigma-delta ADC with minimal gain error. Use Value: Delivers <0.01% linearity error across 0–5 V output span, supporting 10,000-count resolution. |
| Battery-Powered Instruments | Temperature Measurements |
Use Scenario: Signal chain front-end in handheld multimeters operating from two AA cells. IC Role / Device Role / Timing Role: Ultra-low-power op-amp providing gain and buffering before ADC sampling. Use Value: Extends battery life beyond 12 months while maintaining 16-bit effective resolution at 1 V supply. | Use Scenario: Linearizing and amplifying RTD or thermistor outputs in smart thermostats. IC Role / Device Role / Timing Role: Precision current source and differential amplifier in constant-current excitation circuits. Use Value: Achieves ±0.1°C accuracy over –20°C to +70°C without calibration due to <0.05 µV/°C drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDCKT | Lower max offset (10 µV), higher IQ (17 µA typ), same SC70-5 package | Better DC accuracy but less suitable for ultra-low-power wake-up circuits requiring <35 µA max | Select when offset-critical sensor front-ends demand tighter initial tolerance at cost of slightly higher average current |
| MCP6V81T-E/OT | 25 µV max offset, 65 µA max IQ, same 5-pin SOT-23 footprint (not SC70) | Higher power consumption and larger package; lacks integrated EMI filtering | Choose only if legacy board layout uses SOT-23 and EMI immunity is not required in end-equipment environment |
Compared with OPA317IDCKT, OPA333AIDCKT offers superior initial offset but trades off guaranteed max quiescent current, while MCP6V81T-E/OT provides comparable precision in a physically larger package without EMI hardening-making OPA317IDCKT optimal for new designs prioritizing size, power, and noise immunity in portable instrumentation.
Availability
OPA317IDCKT is available at Aetrix Electronics and suitable for battery-powered instruments, electronic scales, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA317IDCKT 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 company specializing in analog and embedded processing technologies, with leadership in precision analog signal chains and low-power innovation.
The OPA317IDCKT belongs to TI's Zerø-Drift operational amplifier product line, engineered specifically for cost-sensitive, battery-operated precision measurement systems demanding rail-to-rail performance and nanovolt-level stability over temperature.
FAQ
What is the maximum supply voltage rating for the OPA317IDCKT?
The OPA317IDCKT has an absolute maximum supply voltage (V+ to V–) of 7 V. Exceeding this rating may cause permanent damage. For reliable operation, the recommended supply range is 1.8 V to 5.5 V. This limit is defined in the Absolute Maximum Ratings table of the official datasheet and applies regardless of ambient temperature or load conditions. Always ensure transient spikes remain below 7 V in system-level surge testing.
Does the OPA317IDCKT support true rail-to-rail input operation?
Yes, the OPA317IDCKT supports true rail-to-rail input operation with a common-mode voltage range extending 0.1 V beyond both supply rails - from (V–) – 0.1 V to (V+) + 0.1 V. This capability eliminates input clamping and enables direct connection to sensors operating at supply extremes, such as thermocouples referenced to ground in single-supply systems. The specification is verified across –40°C to +125°C and is independent of output loading.
What is the typical quiescent current of the OPA317IDCKT at 25°C and 5 V supply?
The typical quiescent current of the OPA317IDCKT is 21 µA at TA = 25°C and VS = 5 V. The maximum specified value is 35 µA across the full temperature range (–40°C to +125°C). This ultra-low power consumption makes the OPA317IDCKT ideal for always-on sensor nodes and portable test equipment where battery longevity is critical. Measured values align with TI's SBOS682B datasheet revision June 2016.
Can the OPA317IDCKT drive capacitive loads without instability?
The OPA317IDCKT is unity-gain stable and can safely drive up to 100 pF capacitive load without external compensation, as confirmed by phase margin measurements in the Typical Characteristics section of the datasheet. For loads exceeding 100 pF, a small series resistor (e.g., 10–50 Ω) between the output and capacitor is recommended to maintain stability. This behavior is consistent across all supply voltages from 1.8 V to 5.5 V and does not require additional feedback network adjustments.
Is the OPA317IDCKT pin-compatible with other members of the OPA317 family?
No, the OPA317IDCKT in SC70-5 package is not pin-compatible with SOIC-8 or SOT-23-5 variants of the OPA317 family. Pin assignments differ: SC70-5 uses Pin 1 = +IN, Pin 3 = –IN, Pin 4 = OUT; whereas SOT-23-5 uses Pin 3 = +IN, Pin 4 = –IN, Pin 1 = OUT. Board redesign is required when substituting packages. Always verify pin functions against the "Pin Functions (5-Pin Packages)" table in the SBOS682B datasheet before layout reuse.
OPA317IDCKT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.15V/µs
- Gain Bandwidth Product:
- 300 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 275 pA
- Voltage - Input Offset:
- 20 µV
- Current - Supply:
- 21µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
OPA317IDCKT FAQ
1.How can I place an order for OPA317IDCKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA317IDCKT 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 OPA317IDCKT reliable?
The price and inventory of OPA317IDCKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA317IDCKT is usually 5 days.
3.What payment methods are accepted for OPA317IDCKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA317IDCKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA317IDCKT?
OPA317IDCKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA317IDCKT 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 OPA317IDCKT?
For technical support, including OPA317IDCKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA317IDCKT requirements.
6.How does Aetrix verify that OPA317IDCKT is sourced from the original manufacturer or authorized distributors?
All OPA317IDCKT 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 OPA317IDCKT meets industry standards.
7.What is the process for return or replacement of OPA317IDCKT?
All OPA317IDCKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA317IDCKT, 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 OPA317IDCKT part is unused and in its original packaging.
Return procedure for OPA317IDCKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA317IDCKT Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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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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LM2902DR
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LM358P
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