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Texas Instruments OPA310SIDBVR
- Part No.:
- OPA310SIDBVR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
OPA310SIDBVR.pdf
- Description:
- SINGLE, 5.5-V, 3-MHZ HIGH-OUTPUT
- Quantity:
- Payment:
- Shipping:
Inventory:2,089
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Product details
Overview
OPA310SIDBVR from Texas Instruments is a single-channel, rail-to-rail input/output operational amplifier optimized for low-voltage (1.5V–5.5V), high-output-current (±150mA typical at 5.5V), fast-shutdown (0.9µs enable time) applications. It delivers 3MHz gain bandwidth, 16nV/√Hz input voltage noise, and operates across –40°C to +125°C - enabling use in LED drivers, optical module biasing, and low-side current sensing circuits.
For engineers reviewing the OPA310SIDBVR datasheet, OPA310SIDBVR pinout, OPA310SIDBVR application, or OPA310SIDBVR equivalent, key selection criteria include its shutdown response time, rail-to-rail swing capability at 1.5V supply, ±250µV input offset voltage, short-circuit robustness (±110mA min at 5.5V), and EMI-filtered inputs for noisy environments.
Technical Context
The OPA310SIDBVR implements a fully differential input stage with fail-safe ESD structure-no diodes to V+-enabling overvoltage-tolerant inputs up to 6.0V beyond V–. Its internal RFI/EMI filtering suppresses RF interference without phase reversal during input overdrive.
It features unity-gain stability while driving up to 250pF capacitive loads, supported by 3MHz GBW and 3V/µs slew rate at 5.5V. The amplifier maintains rail-to-rail output swing within 9mV of rails (at 10kΩ load, 5.5V supply) and includes thermal shutdown and internal current limiting for robust operation under sustained overload.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5V to 5.5V - supports direct integration into Li-ion, USB, and low-power industrial rails without level shifting. |
| Gain Bandwidth Product | 3MHz typical at 5.5V - enables stable closed-loop operation up to ~300kHz in G=10 configuration with margin. |
| Output Current | ±150mA typical at 5.5V - drives LEDs, laser diodes, or TECs directly without external boost stages. |
| Input Offset Voltage | ±250µV typical - ensures <1mV error in precision reference buffers and guard amplifiers at room temperature. |
| Shutdown Enable Time | 0.9µs typical - allows microsecond-scale power cycling in duty-cycled optical transceivers or sensor front-ends. |
| Input Voltage Noise | 16nV/√Hz at 1kHz - preserves SNR in microphone pre-amplifiers and low-level signal conditioning paths. |
| Operating Temperature | –40°C to +125°C - qualified for automotive cabin modules, industrial motor controls, and outdoor telecom equipment. |
Pinout & Package
OPA310SIDBVR is packaged in a 5-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm with exposed pad for thermal enhancement. Pin 1 = OUT, Pin 2 = V–, Pin 3 = IN+, Pin 4 = IN–, Pin 5 = V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Delivers rail-to-rail swing; capable of sourcing/sinking ±150mA; connects directly to LED anode/cathode or current-sense shunt. |
| 2 (V–) | Negative Supply / Ground | Serves as return path for output current and reference for input common-mode range; must be connected to PCB ground plane or negative rail. |
| 3 (IN+) | Noninverting Input | High-impedance node (100GΩ || 0.5pF); accepts signals from sensors, DACs, or reference voltages with minimal loading. |
| 4 (IN–) | Inverting Input | High-impedance node (80GΩ || 1.4pF); used for feedback in transimpedance or current-sensing configurations. |
| 5 (V+) | Positive Supply | Accepts 1.5V–5.5V; supplies internal bias and output stage; requires local 100nF ceramic decoupling to minimize PSRR degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Swings within 9mV of rails at 10kΩ load and 5.5V supply - eliminates headroom loss in single-supply 3.3V systems. |
| Fail-safe Inputs | No diode to V+ - permits input signals up to 6.0V above V– without latch-up or damage, critical for hot-swap or fault-tolerant designs. |
| EMI/RFI Filtering | Integrated input filters reject >1.8GHz interference with 75dB EMIRR - reduces need for external ferrite beads in RF-dense enclosures. |
| Capacitive Load Drive | Stable with up to 250pF without oscillation - enables direct connection to LCD segments, long traces, or piezo actuators. |
| Low Quiescent Current | 165µA/ch typical - extends battery life in portable optical modules and IoT sensor nodes operating from coin cells. |
Applications
| Optical Module Biasing | Reference Buffering |
|---|---|
Use Scenario: Precision bias control of laser diodes and EMLs in SFP+/QSFP transceivers with real-time current monitoring. IC Role / Device Role / Timing Role: Acts as a fast-settling, high-current buffer between DAC output and laser cathode/anode, with shutdown synchronized to link activity. Use Value: Enables 0.9µs on/off transitions to meet IEEE 802.3ae power management requirements while maintaining <±250µV offset accuracy. | Use Scenario: Stabilizing voltage references for 16-bit SAR ADCs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Provides low-noise, rail-to-rail buffering with 16nV/√Hz noise floor and 3MHz bandwidth to preserve reference integrity. Use Value: Reduces effective reference noise contribution to <0.5 LSB at 16-bit resolution, eliminating need for external RC filtering. |
| Microphone Pre-amplifier | 4–20mA Loop Driver |
Use Scenario: Low-noise amplification of MEMS microphone outputs in voice-controlled edge devices operating from 1.8V supplies. IC Role / Device Role / Timing Role: Configured as noninverting amplifier with G=100, leveraging rail-to-rail swing and 1.5V minimum supply compatibility. Use Value: Achieves >65dB SNR at 1kHz with 16nV/√Hz input noise, meeting IEC 61672 Class 1 microphone preamp specifications. | Use Scenario: Driving 4–20mA current loops in hazardous-area process transmitters powered from 24V loop supplies. IC Role / Device Role / Timing Role: Functions as programmable current source using precision shunt feedback, with output referenced to loop ground. Use Value: Delivers ±150mA output drive to sustain full 20mA into 1kΩ loads while maintaining <0.01% linearity over temperature. |
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 output current (±25mA), no shutdown, 1MHz GBW, 1.8V–5.5V supply | Not suitable for LED/laser driver or high-current sensing; better for ultra-low-power sensor interfaces | Select when quiescent current (<50µA) outweighs output drive and speed requirements |
| TLV9061IDBVR | Higher GBW (10MHz), lower noise (7nV/√Hz), ±50mA output, 1.8V–5.5V supply, no shutdown | Lacks fast shutdown and failsafe inputs; unsuitable for hot-swap or duty-cycled optical biasing | Prefer for high-speed, low-noise signal chains where shutdown is managed externally |
Compared with OPA310SIDBVR, OPA313IDBVR trades output drive and shutdown for lower IQ, while TLV9061IDBVR offers higher speed and lower noise but omits critical protection and power-management features needed in optical and industrial current-source designs.
Availability
OPA310SIDBVR is available at Aetrix Electronics and suitable for optical transceiver design, precision reference buffering, and 4–20mA loop driver applications requiring stable component supply, extended temperature operation, and production-ready lead times.
Supply support for OPA310SIDBVR 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 communications markets.
The OPAx310 family was designed specifically for high-output-current, low-voltage signal conditioning in optical modules, LED drivers, and precision current sources - emphasizing robustness, EMI immunity, and microsecond-scale power control.
FAQ
What is the maximum capacitive load the OPA310SIDBVR can drive without oscillation?
The OPA310SIDBVR is specified to drive up to 250pF without sustained oscillations under unity-gain conditions with RL = 10kΩ to VS/2. This capability eliminates the need for isolation resistors in LCD segment drivers, piezo actuator interfaces, and long-trace sensor signal routing - provided layout follows TI-recommended grounding and decoupling practices.
Does the OPA310SIDBVR have built-in EMI filtering, and how effective is it?
Yes, the OPA310SIDBVR integrates RFI and EMI filtered input pins, achieving 75dB electromagnetic interference rejection ratio (EMIRR) at 1.8GHz. This on-die filtering significantly attenuates cellular, Wi-Fi, and Bluetooth band interference - reducing or eliminating external ferrite beads and RC filters in compact, high-density layouts such as optical module PCBs.
Can the OPA310SIDBVR operate from a 1.5V single supply, and what performance is guaranteed?
Yes, the OPA310SIDBVR is fully specified from 1.5V to 5.5V supply. At 1.5V, it maintains rail-to-rail input/output swing, 2.5MHz gain bandwidth, 2.8V/µs slew rate, and 165µA quiescent current. Input offset voltage remains ±1.3mV max, supporting precision functions like low-side current sensing in energy-harvesting and battery-powered systems.
What is the shutdown behavior of the OPA310SIDBVR, and how does it affect system power?
The OPA310SIDBVR has no shutdown pin - the part number OPA310SIDBVR denotes the standard single-channel variant without shutdown functionality. For shutdown capability, engineers must select OPA310S variants (e.g., OPA310SIDBVT). Confusion arises because "S" in the family name refers to shutdown-capable versions; OPA310SIDBVR is the non-shutdown version.
How does the fail-safe input architecture of the OPA310SIDBVR improve system reliability?
The OPA310SIDBVR uses a fail-safe input structure with no diodes connected from inputs to V+, allowing input signals to exceed V+ by up to 6.0V without forward-biasing junctions. This prevents latch-up and damage during hot-plug events, transient overvoltages, or mismatched supply sequencing - making it ideal for industrial I/O modules and optical transceivers where signal integrity must survive field faults.
OPA310SIDBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 165µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 1.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
OPA310SIDBVR FAQ
1.How can I place an order for OPA310SIDBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA310SIDBVR 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 OPA310SIDBVR reliable?
The price and inventory of OPA310SIDBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA310SIDBVR is usually 5 days.
3.What payment methods are accepted for OPA310SIDBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA310SIDBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA310SIDBVR?
OPA310SIDBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA310SIDBVR 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 OPA310SIDBVR?
For technical support, including OPA310SIDBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA310SIDBVR requirements.
6.How does Aetrix verify that OPA310SIDBVR is sourced from the original manufacturer or authorized distributors?
All OPA310SIDBVR 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 OPA310SIDBVR meets industry standards.
7.What is the process for return or replacement of OPA310SIDBVR?
All OPA310SIDBVR units undergo pre-shipment inspection (PSI). If there is an issue with OPA310SIDBVR, 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 OPA310SIDBVR part is unused and in its original packaging.
Return procedure for OPA310SIDBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA310SIDBVR Tags
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