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Texas Instruments OPA316IDBVR
- Part No.:
- OPA316IDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA316IDBVR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,692
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Product details
Overview
OPA316IDBVR from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-voltage, low-power applications. It delivers 10-MHz unity-gain bandwidth, 400 µA/ch quiescent current, 11 nV/√Hz input voltage noise at 1 kHz, ±0.5 mV offset voltage, and operates from 1.8 V to 5.5 V supply. It is used in battery-powered sensor signal conditioning circuits where precision, low power, and rail-to-rail swing are critical.
For engineers reviewing the OPA316IDBVR datasheet, OPA316IDBVR pinout, OPA316IDBVR application, or OPA316IDBVR equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions for SOT-23-5 (DBV) package, application-specific implementation insights, and two confirmed alternative op-amps with documented functional and packaging differences.
Technical Context
The OPA316IDBVR employs a CMOS input stage with ±5 pA typical input bias current, enabling high-impedance source interfacing. Its internal RFI-EMI filter suppresses high-frequency interference without external components, and it remains stable at unity gain with no phase reversal under overdrive.
It supports true rail-to-rail input common-mode range (down to V– – 0.2 V and up to V+ + 0.2 V at 5.5 V) and output swing within 15 mV of rails (at 1.8 V, RL = 10 kΩ), making it suitable for single-supply systems with tight headroom constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 10 MHz - enables stable amplification of signals up to ~1 MHz in G = +1 configuration with ≤45° phase margin. |
| Quiescent Current | 400 µA per channel - allows continuous operation for >1 year on a single CR2032 coin cell in always-on sensor front-ends. |
| Input Voltage Noise | 11 nV/√Hz at 1 kHz - preserves SNR in µV-level sensor outputs (e.g., thermopiles, strain gauges) without requiring additional filtering. |
| Input Offset Voltage | ±0.5 mV (typ) - contributes ≤0.1% error in 0.5 V full-scale 12-bit ADC interfaces without trimming. |
| Supply Range | 1.8 V to 5.5 V - interoperates directly with Li-ion, Li-po, and 3.3 V/5 V logic domains without level-shifting. |
| CMRR | 86 dB (min) at 1.8 V - rejects >200× common-mode interference in noisy industrial sensor nodes. |
| Output Swing | Within 15 mV of rails (1.8 V, RL = 10 kΩ) - maximizes dynamic range in single-supply data acquisition stages. |
Pinout & Package
OPA316IDBVR is packaged in a 5-pin SOT-23 (DBV) case measuring 1.60 mm × 2.90 mm, with exposed pad not connected internally and no thermal requirement beyond standard PCB copper pour.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Amplifier output node; drives loads up to 10 kΩ while maintaining rail-to-rail swing and <1 µs 0.1% settling. |
| 2 | V– | Negative supply or ground reference; serves as return path for input bias current and output load current. |
| 3 | +IN | Noninverting input; accepts common-mode voltages from V– – 0.2 V to V+ + 0.2 V (at 5.5 V), enabling direct connection to resistive dividers. |
| 4 | –IN | Inverting input; matched to +IN for <2 pA input offset current; requires symmetrical layout to preserve CMRR. |
| 5 | V+ | Positive supply input; decoupling capacitor (100 nF ceramic) must be placed ≤2 mm from this pin to ensure stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full utilization of 1.8 V supply in single-ended configurations-no level-shifting circuitry required for MCU ADC inputs. |
| Integrated RFI-EMI Filter | Rejects >40 dB of 100 MHz–2 GHz RF interference without external RC networks, reducing board area and debug time. |
| No Phase Reversal | Prevents latch-up or uncontrolled output slewing during input overdrive-critical for protection in open-sensor fault conditions. |
| 4-kV HBM ESD Rating | Survives handling and board assembly without special ESD controls, lowering manufacturing yield risk in high-volume consumer production. |
| Low Input Bias Current | ±5 pA (typ) supports MΩ-range sensor bridges and pH electrode interfaces without significant offset drift or loading error. |
Applications
| Battery-Powered Medical Sensor | Automotive Cabin Air Quality Monitor |
|---|---|
Use Scenario: Amplifying microvolt-level output from NDIR CO₂ sensor in portable spirometer. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with 100× fixed gain before 12-bit SAR ADC. Use Value: 11 nV/√Hz noise and ±0.5 mV offset ensure <0.5% total measurement error across 0–10,000 ppm range at 1.8 V supply. |
Use Scenario: Signal conditioning for MEMS-based VOC sensor in HVAC control module. IC Role / Device Role / Timing Role: Low-drift buffer and anti-aliasing filter driver for 100 ksps delta-sigma ADC. Use Value: 400 µA quiescent current extends module sleep-mode battery life to >5 years; rail-to-rail output matches ADC input range exactly. |
| Barcode Scanner Front-End | Industrial Thermopile Interface |
Use Scenario: Transimpedance amplification of photodiode current in handheld laser scanner. IC Role / Device Role / Timing Role: High-speed TIA with 10-MHz GBW supporting 500-kHz modulation envelope detection. Use Value: Unity-gain stability and 6 V/µs slew rate enable clean pulse response with <1 µs 0.1% settling-no external compensation needed. |
Use Scenario: Amplifying 10–100 µV thermopile output in predictive maintenance temperature node. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end (G = 1000) with integrated EMI filtering. Use Value: ±5 pA input bias current prevents voltage drop across 100 kΩ thermopile series resistance; 125°C rating ensures reliability in motor-adjacent enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA313IDBVR | Lower bandwidth (350 kHz), lower IQ (50 µA), higher offset (±1.5 mV), same DBV package. | Better suited for ultra-low-power (<10 µA avg), sub-100 kHz sensor monitoring-not for audio or fast transient capture. | Select when battery life outweighs speed/noise requirements; verify loop stability with higher closed-loop gains. |
| MCP6001T-E/OT | Same 1.8–5.5 V supply, but lower GBW (1 MHz), higher noise (22 nV/√Hz), no integrated RFI filter, SOT-23-5 package. | Cost-optimized for non-critical consumer applications where EMI immunity is managed externally. | Choose for BOM cost reduction where RF environment is controlled and 10-MHz bandwidth is unnecessary. |
Compared with OPA316IDBVR, OPA313IDBVR trades bandwidth and precision for extreme low power, while MCP6001T-E/OT reduces cost and EMI robustness-neither offers identical noise-bandwidth-efficiency balance, so system-level trade-offs in SNR, response time, and layout complexity must be re-evaluated.
Availability
OPA316IDBVR is available at Aetrix Electronics and suitable for battery-powered medical sensors, automotive cabin air quality monitors, barcode scanner front-ends, and industrial thermopile interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA316IDBVR 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 decades of op-amp design heritage and broad industrial qualification.
The OPAx316 family targets low-voltage, low-power precision signal conditioning-designed specifically for space-constrained, energy-sensitive applications like portable diagnostics, smart sensors, and automotive interior electronics.
FAQ
What is the maximum operating temperature range for the OPA316IDBVR?
The OPA316IDBVR is specified for continuous operation from –40°C to +125°C ambient temperature, with absolute maximum junction temperature rated at 150°C. This extended range supports deployment in under-hood automotive modules, industrial PLC I/O cards, and outdoor environmental sensors without derating.
Does the OPA316IDBVR require external compensation for unity-gain stability?
No, the OPA316IDBVR is unity-gain stable by design and does not require external compensation components. Its internal compensation ensures ≥60° phase margin at G = +1 across all supply voltages (1.8 V to 5.5 V) and load conditions up to 100 pF, simplifying layout and reducing bill-of-materials.
Can the OPA316IDBVR drive capacitive loads directly?
The OPA316IDBVR can safely drive up to 100 pF capacitive loads in unity-gain configuration without oscillation, as verified in the datasheet's typical characteristics. For loads >100 pF, an isolation resistor (10–50 Ω) between output and capacitance is recommended to maintain stability.
How does the internal RFI-EMI filter in the OPA316IDBVR improve system robustness?
The integrated RFI-EMI filter attenuates high-frequency interference (100 MHz–2 GHz) before it reaches the input stage, preventing rectification-induced DC offset shifts and false triggering in sensitive analog front-ends-eliminating need for discrete LC filters in designs like portable gas analyzers or wireless sensor nodes.
Is the OPA316IDBVR pin-compatible with other op-amps in the same SOT-23-5 package?
The OPA316IDBVR uses standard SOT-23-5 pinout (V+, OUT, +IN, –IN, V–), matching industry conventions. However, functional compatibility depends on specifications: e.g., while MCP6001T-E/OT shares the footprint, its lower bandwidth and noise profile may not meet timing or accuracy requirements originally designed for OPA316IDBVR.
OPA316IDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 400µA
- 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
OPA316IDBVR FAQ
1.How can I place an order for OPA316IDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA316IDBVR 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 OPA316IDBVR reliable?
The price and inventory of OPA316IDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA316IDBVR is usually 5 days.
3.What payment methods are accepted for OPA316IDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA316IDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA316IDBVR?
OPA316IDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA316IDBVR 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 OPA316IDBVR?
For technical support, including OPA316IDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA316IDBVR requirements.
6.How does Aetrix verify that OPA316IDBVR is sourced from the original manufacturer or authorized distributors?
All OPA316IDBVR 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 OPA316IDBVR meets industry standards.
7.What is the process for return or replacement of OPA316IDBVR?
All OPA316IDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA316IDBVR, 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 OPA316IDBVR part is unused and in its original packaging.
Return procedure for OPA316IDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA316IDBVR Tags
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