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Texas Instruments OPA317IDBVR
- Part No.:
- OPA317IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA317IDBVR.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIRC SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,921
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Product details
Overview
OPA317IDBVR from Texas Instruments is a single-channel, rail-to-rail input/output, zero-drift operational amplifier optimized for precision low-voltage operation (1.8 V to 5.5 V). It delivers 20 μV typical offset voltage, 300 kHz gain-bandwidth, 35 μA maximum quiescent current, and 108 dB typical CMRR - enabling high-accuracy signal conditioning in battery-powered sensor interfaces and medical instrumentation.
For engineers reviewing the OPA317IDBVR datasheet, OPA317IDBVR pinout, OPA317IDBVR application, or OPA317IDBVR equivalent, this page provides verified technical context, package-specific pin functions, real-world use cases, and validated alternative options - all grounded in TI's SBOS682B production data sheet and official packaging documentation.
Technical Context
The OPA317IDBVR 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) over –40°C to +125°C. Its input stage includes internal EMI/RFI filtering with ~8 MHz cutoff and rail-to-rail common-mode range extending 0.1 V beyond both supply rails.
This device uses a class AB output stage capable of driving ≥10 kΩ loads and achieves rail-to-rail output swing within 30 mV of either supply under full temperature range. It is unity-gain stable and features internal protection against input overvoltage (±0.3 V beyond rails, current-limited to 10 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.8 V to 5.5 V - supports direct battery operation (e.g., single Li-ion or two alkaline cells) without regulation. |
| Offset Voltage (max) | ±90 μV at 25°C - ensures ≤0.0036% error in 2.5 V full-scale 16-bit ADC front-end. |
| Gain-Bandwidth | 300 kHz - sufficient for anti-aliasing and sensor signal conditioning up to ~30 kHz closed-loop bandwidth. |
| Quiescent Current | 35 μA max per amplifier - enables multi-year operation in coin-cell–powered IoT nodes. |
| CMRR | 108 dB typical - rejects >99.99% of common-mode interference in noisy industrial environments. |
| Input Voltage Range | (V−) − 0.1 V to (V+) + 0.1 V - eliminates input clamping artifacts in rail-sensing applications. |
| Output Swing | Within 30 mV of rails at full temperature range - preserves dynamic range in low-voltage 1.8 V systems. |
Pinout & Package
SOT-23-5 (DBV) package: 1.60 mm × 2.90 mm body, 0.95 mm height, surface-mount, tape-and-reel compatible. Thermal resistance RθJA = 220.8°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Class AB buffered output capable of sourcing/sinking ≥5 mA; swings rail-to-rail into ≥10 kΩ load. |
| 2 - V− | Negative Supply | Lowest potential supply terminal; must be connected to ground or negative rail; no internal connection to substrate. |
| 3 - +IN | Noninverting Input | High-impedance CMOS input (±275 pA bias); accepts signals from (V−) − 0.1 V to (V+) + 0.1 V. |
| 4 - −IN | Inverting Input | Matches +IN in voltage range and bias current; differential input voltage limited to ±0.3 V during linear operation. |
| 5 - V+ | Positive Supply | Highest potential supply terminal; supports 1.8–5.5 V; absolute max 7 V - exceeding damages device permanently. |
Key Features
| Feature | Design Value |
|---|---|
| Zerø-Drift Architecture | Auto-calibrates offset every 8 μs - delivers <0.05 μV/°C drift and eliminates 1/f noise without aliasing. |
| Rail-to-Rail I/O | Input extends 0.1 V beyond supplies; output swings to within 30 mV of rails - maximizes usable dynamic range at 1.8 V. |
| Internal EMI Filtering | Integrated low-pass filter (−3 dB at ~8 MHz) on both inputs - suppresses RF rectification-induced DC offset shifts. |
| Ultra-Low Power | 35 μA max quiescent current - enables always-on sensing in energy-harvesting and wearable devices. |
| High PSRR/CMRR | 108 dB CMRR and >100 dB PSRR - maintains accuracy when powered directly from noisy battery or SMPS rails. |
Applications
| Battery-Powered Instruments | Temperature Measurements |
|---|---|
Use Scenario: Portable multimeter front-end amplifying mV-level thermocouple or RTD bridge outputs. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with sub-100 μV offset and near-zero drift over operating temperature. Use Value: Enables 0.1°C resolution in handheld thermal scanners without calibration drift over hours of field use. |
Use Scenario: Cold-junction compensation circuit in industrial temperature transmitters using thermistors. IC Role / Device Role / Timing Role: Low-power, rail-to-rail buffer and reference amplifier driving 16-bit SAR ADC inputs. Use Value: Maintains <±0.05°C measurement stability across −40°C to +85°C ambient without active oven control. |
| Electronic Scales | Medical Instrumentation |
Use Scenario: Strain-gauge Wheatstone bridge amplifier in digital kitchen or industrial weighing platforms. IC Role / Device Role / Timing Role: Zero-drift instrumentation amplifier front-end rejecting common-mode noise from AC mains coupling. Use Value: Achieves <100,000-count resolution with <0.005% linearity error and no warm-up drift before first reading. |
Use Scenario: ECG electrode signal conditioning stage amplifying microvolt-level biopotentials. IC Role / Device Role / Timing Role: Ultra-low-noise, low-input-bias-current buffer isolating high-impedance dry electrodes from ADC input. Use Value: Supports 0.5 μVPP input-referred noise floor and >10 GΩ effective input impedance for artifact-free waveform capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Same Zerø-Drift architecture but higher 350 kHz GBW; 17 μV max offset; 17 μA typical IQ. | Better for higher-speed sensor interfaces (e.g., fast-response pressure sensors); slightly lower power. | Select OPA333AIDBVR if closed-loop bandwidth >250 kHz is required and 17 μA IQ is critical. |
| MCP6V81T-E/OT | Microchip zero-drift op-amp; 25 μV max offset; 300 kHz GBW; 35 μA max IQ; same SOT-23-5 footprint. | Qualified for extended temperature (−40°C to +150°C); identical pinout and supply range; different ESD rating (2 kV HBM). | Choose MCP6V81T-E/OT for automotive under-hood or industrial high-temp environments where TI part is unqualified. |
Compared with OPA317IDBVR, OPA333AIDBVR offers marginally better speed and lower quiescent current but shares identical zero-drift benefits and layout compatibility; MCP6V81T-E/OT matches key specs and package while extending temperature qualification - making it suitable for harsh-environment drop-in evaluation where TI's 125°C limit is insufficient.
Availability
OPA317IDBVR is available at Aetrix Electronics and suitable for battery-powered instruments, temperature measurements, electronic scales, and medical instrumentation requiring stable component supply across long-life production cycles.
Supply support for OPA317IDBVR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The OPA317IDBVR belongs to TI's Precision Amplifiers product line, engineered specifically for cost-sensitive, ultra-low-power, high-accuracy signal conditioning in single-supply systems operating down to 1.8 V.
FAQ
What is the maximum supply voltage for OPA317IDBVR?
The absolute maximum supply voltage for OPA317IDBVR is 7 V, as specified in the Absolute Maximum Ratings table. Operation above this level causes permanent damage. For reliable long-term function, the recommended operating range is 1.8 V to 5.5 V. The OPA317IDBVR must never be subjected to sustained voltages exceeding 7 V across V+ and V− terminals - doing so voids warranty and risks immediate failure.
Does OPA317IDBVR support rail-to-rail input and output simultaneously?
Yes, OPA317IDBVR supports true rail-to-rail input and output operation. Its input common-mode range extends from (V−) − 0.1 V to (V+) + 0.1 V, and its output swings to within 30 mV of either rail under full temperature and load conditions. This capability is confirmed in Section 6.7 of the SBOS682B datasheet and enables full dynamic range utilization in 1.8 V and 3.3 V systems - a key advantage of the OPA317IDBVR over conventional precision op-amps.
What is the typical input bias current of OPA317IDBVR?
The typical input bias current of OPA317IDBVR is ±275 pA at 25°C, with a maximum of ±300 pA over the full −40°C to +125°C temperature range. This ultra-low bias current minimizes voltage errors in high-impedance sensor interfaces such as photodiode transimpedance amplifiers or pH electrode buffers. The OPA317IDBVR maintains this specification only within its linear operating region - bias current increases significantly if inputs are overdriven beyond the common-mode range.
Can OPA317IDBVR drive capacitive loads?
OPA317IDBVR is not explicitly characterized for direct capacitive load drive in the datasheet, but its unity-gain stability and class AB output stage allow safe operation with ≤100 pF capacitive loads when properly compensated. For larger loads (>100 pF), external isolation resistance (e.g., 10–100 Ω in series with output) is recommended to prevent peaking or oscillation. The OPA317IDBVR's 300 kHz GBW and 0.15 V/μs slew rate constrain large-signal settling with heavy capacitance - verify stability in final PCB layout using simulation and bench testing.
Is OPA317IDBVR pin-compatible with other members of the OPA317 family?
No - OPA317IDBVR (SOT-23-5) is not pin-compatible with OPA317 variants in SOIC-8 or SC70-5 packages, despite sharing identical electrical functionality. Pin 1 (OUT) and pin 5 (V+) positions differ across DBV (SOT-23), DCK (SC70), and D (SOIC) packages. The OPA317IDBVR uses the standard SOT-23-5 pinout: OUT–V−–+IN–−IN–V+. Substituting another package requires PCB redesign. Always confirm mechanical dimensions and land patterns using TI's official DBV package drawing SLMS120.
OPA317IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- SOT-23-5
OPA317IDBVR FAQ
1.How can I place an order for OPA317IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA317IDBVR 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 OPA317IDBVR reliable?
The price and inventory of OPA317IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA317IDBVR is usually 5 days.
3.What payment methods are accepted for OPA317IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA317IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA317IDBVR?
OPA317IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA317IDBVR 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 OPA317IDBVR?
For technical support, including OPA317IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA317IDBVR requirements.
6.How does Aetrix verify that OPA317IDBVR is sourced from the original manufacturer or authorized distributors?
All OPA317IDBVR 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 OPA317IDBVR meets industry standards.
7.What is the process for return or replacement of OPA317IDBVR?
All OPA317IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA317IDBVR, 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 OPA317IDBVR part is unused and in its original packaging.
Return procedure for OPA317IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA317IDBVR Tags
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