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Texas Instruments OPA316IDBVT
- Part No.:
- OPA316IDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA316IDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:571
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Product details
Overview
OPA316IDBVT from Texas Instruments is a single-channel, rail-to-rail input/output CMOS operational amplifier optimized for low-voltage, low-power precision signal conditioning. 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 (typ), and operates from 1.8 V to 5.5 V supply - enabling use in battery-powered medical sensors and portable audio front-ends.
For engineers reviewing the OPA316IDBVT datasheet, OPA316IDBVT pinout, OPA316IDBVT application, or OPA316IDBVT equivalent, this page provides verified electrical specifications, SC-70-5 package details, real-world application context for sensor interfaces and active filters, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The OPA316IDBVT implements a fully differential input stage with CMOS transistors, enabling rail-to-rail common-mode input range down to (V–) – 0.2 V and up to (V+) + 0.2 V (at VS ≥ 2.5 V). Its internal RFI-EMI filter suppresses high-frequency interference without external components, and it features no phase reversal during overdrive - critical for robust sensor front-end operation.
This device uses a unity-gain stable, internally compensated architecture with 60° phase margin at G = +1 and 10 MHz gain-bandwidth product. It achieves 6 V/µs slew rate and 1 µs settling time to 0.1% for a 2-V step, supporting accurate DC-coupled amplification and fast transient response in portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Unity-Gain Bandwidth | 10 MHz - supports stable closed-loop operation up to 10× gain at 1 MHz or unity gain at full 10 MHz, suitable for anti-aliasing and reconstruction filters. |
| Quiescent Current | 400 µA per channel - enables >100-hour operation on a 40-mAh coin cell in always-on sensor nodes. |
| Input Voltage Noise | 11 nV/√Hz at 1 kHz - preserves SNR in µV-level thermocouple or bridge sensor amplification without requiring external filtering. |
| Input Bias Current | ±5 pA (typ) - allows direct interface with >100 MΩ source impedances (e.g., pH electrodes, piezoresistive MEMS) without significant offset error. |
| Offset Voltage | ±0.5 mV (typ) - ensures ≤0.5% gain error in 100-mV full-scale medical sensor outputs without trimming. |
| Supply Range | 1.8 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), 2× alkaline (2.4–3.2 V), and 3.3-V logic rails without level-shifting. |
| Output Swing | Rail-to-rail - delivers full 0–1.8 V output at 10-kΩ load when powered from 1.8 V, maximizing dynamic range in low-voltage ADC drivers. |
Pinout & Package
OPA316IDBVT is housed in a 5-pin SC-70 (DCK) package measuring 1.25 mm × 2.00 mm, with exposed die pad connected to V– for thermal and EMI performance. The package is RoHS-compliant and rated for –40°C to +125°C operation.
| 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 settling. |
| 2 | V– | Negative supply or ground reference - connects to PCB ground plane and exposed thermal pad; must be low-impedance for stability. |
| 3 | +IN | Noninverting input - accepts common-mode voltages from (V–) – 0.2 V to (V+) + 0.2 V, enabling true single-supply sensor biasing. |
| 4 | –IN | Inverting input - forms feedback node with external resistors; high impedance (10¹⁶ Ω || pF) minimizes loading on precision dividers. |
| 5 | V+ | Positive supply - supplies internal bias circuitry; decoupling capacitor (0.1 µF) required within 2 mm for PSRR >86 dB. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full utilization of 1.8-V supply in single-ended configurations - eliminates need for dual supplies in portable ECG or pulse oximeter analog front-ends. |
| Integrated RFI-EMI Filter | Rejects >30 dB of 100-MHz cellular and Wi-Fi interference without external RC networks - reduces layout sensitivity in handheld devices. |
| No Phase Reversal | Prevents output latch-up during input overdrive (e.g., ESD transients or sensor disconnect), ensuring safe recovery in automotive body control modules. |
| 4-kV HBM ESD Rating | Meets IEC 61000-4-2 Level 2 requirements - allows direct handling and board assembly without special ESD controls in medical OEM lines. |
| Low Input Bias Current | Supports high-Z sensor interfacing (e.g., 10-MΩ thermistor networks) with <1-µV input offset contribution - avoids calibration drift over temperature. |
Applications
| Portable Medical Sensors | Barcode Scanner Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level signals from disposable ECG electrodes in handheld monitors. IC Role / Device Role / Timing Role: Primary DC-coupled instrumentation amplifier stage with gain = 100, driving 12-bit SAR ADC. Use Value: 11 nV/√Hz noise and ±5 pA bias current preserve signal integrity across 0.05–150 Hz bandwidth without AC coupling or guard traces. |
Use Scenario: Conditioning photodiode current from laser scanner optics into clean voltage for digitization. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with 1-MΩ feedback resistor and 10-MHz bandwidth. Use Value: 10-MHz GBP and 6 V/µs slew rate support 100-kHz modulation envelope detection with <1% distortion at 3.3-V supply. |
| Automotive Cabin Sensors | Audio Line Driver |
Use Scenario: Signal conditioning for humidity and CO₂ sensors in HVAC control units operating at 125°C ambient. IC Role / Device Role / Timing Role: Low-drift buffer between sensor IC and microcontroller ADC input. Use Value: ±3.5 mV max offset over –40°C to +125°C and 400 µA IQ enable reliable 12-bit measurements with minimal self-heating. |
Use Scenario: Driving 600-Ω professional audio line inputs from portable media players. IC Role / Device Role / Timing Role: Unity-gain voltage follower with rail-to-rail output swing. Use Value: Full 0–3.3 V output swing at 10-kΩ load preserves headroom and dynamic range without clipping on 3.3-V rail. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA313IDBVT | Lower bandwidth (1 MHz), higher IQ (50 µA), same 1.8-V min supply and RRIO. | Better suited for ultra-low-power (<10 µA avg) sensor wake-up circuits where speed is secondary. | Select OPA313IDBVT only if bandwidth <1 MHz suffices and lower IQ is prioritized over noise performance. |
| MCP6001T-E/OT | Lower bandwidth (1 MHz), higher input bias current (1 pA vs ±5 pA), no integrated RFI filter. | Cost-optimized for consumer-grade smoke detectors and basic voltage references where EMI immunity is less critical. | Choose MCP6001T-E/OT for cost-sensitive designs with relaxed noise, speed, and EMI requirements. |
Compared with OPA316IDBVT, OPA313IDBVT trades 90% bandwidth reduction for ~10× lower quiescent current, while MCP6001T-E/OT offers lower unit cost but lacks RFI filtering and has 200× higher input noise density - making OPA316IDBVT optimal for precision, high-speed, low-noise portable sensing.
Availability
OPA316IDBVT is available at Aetrix Electronics and suitable for battery-powered instruments, sensor signal conditioning, and automotive cabin electronics requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA316IDBVT 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 expertise in precision op-amps and low-power signal chains.
The OPAx316 family was designed specifically for cost-sensitive, battery-operated applications demanding high AC performance (10 MHz GBW), low noise (11 nV/√Hz), and robust rail-to-rail operation down to 1.8 V.
FAQ
What is the maximum operating temperature for OPA316IDBVT?
The OPA316IDBVT is specified for continuous operation from –40°C to +125°C ambient temperature, with absolute maximum junction temperature of 150°C. Its thermal resistance (RθJA) is 263.3°C/W in the SC-70 package, requiring careful PCB copper area design for sustained 125°C operation.
Does OPA316IDBVT support single-supply operation?
Yes, OPA316IDBVT supports true single-supply operation from 1.8 V to 5.5 V. Its rail-to-rail input range extends to (V–) – 0.2 V and (V+) + 0.2 V (at VS ≥ 2.5 V), and its output swings within 15 mV of each rail at 10-kΩ load - enabling direct interface with 1.8-V ADCs and microcontrollers.
What is the typical input offset voltage of OPA316IDBVT?
The typical input offset voltage of OPA316IDBVT is ±0.5 mV at 25°C and VS = 5 V, with a maximum of ±3.5 mV over the full –40°C to +125°C temperature range. This low drift (±2 µV/°C typ) makes it suitable for precision DC-coupled sensor amplifiers without trimming.
How does the integrated RFI-EMI filter in OPA316IDBVT improve system robustness?
The integrated RFI-EMI filter in OPA316IDBVT attenuates high-frequency interference (e.g., GSM bursts, Wi-Fi harmonics) before it reaches the input stage, reducing susceptibility by >30 dB at 100 MHz. This eliminates the need for external RC filters and prevents rectification-induced DC errors in sensitive measurement paths.
Is OPA316IDBVT unity-gain stable?
Yes, OPA316IDBVT is unity-gain stable with 60° phase margin at G = +1 and 10 MHz gain-bandwidth product. It requires no external compensation and maintains stability with capacitive loads up to 100 pF - simplifying design in ADC driver and active filter applications.
OPA316IDBVT 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:
- 50 mA
- 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
OPA316IDBVT FAQ
1.How can I place an order for OPA316IDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA316IDBVT 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 OPA316IDBVT reliable?
The price and inventory of OPA316IDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA316IDBVT is usually 5 days.
3.What payment methods are accepted for OPA316IDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA316IDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA316IDBVT?
OPA316IDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA316IDBVT 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 OPA316IDBVT?
For technical support, including OPA316IDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA316IDBVT requirements.
6.How does Aetrix verify that OPA316IDBVT is sourced from the original manufacturer or authorized distributors?
All OPA316IDBVT 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 OPA316IDBVT meets industry standards.
7.What is the process for return or replacement of OPA316IDBVT?
All OPA316IDBVT units undergo pre-shipment inspection (PSI). If there is an issue with OPA316IDBVT, 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 OPA316IDBVT part is unused and in its original packaging.
Return procedure for OPA316IDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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