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Texas Instruments OPA2310SIRUGR
- Part No.:
- OPA2310SIRUGR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-XFQFN
- Datasheet:
-
OPA2310SIRUGR.pdf
- Description:
- DUAL-CHANNEL, 5.5-V, 3-MHZ HIGH-
- Quantity:
- Payment:
- Shipping:
Inventory:2,178
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Product details
Overview
OPA2310SIRUGR from Texas Instruments is a dual-channel, rail-to-rail input/output operational amplifier with fast shutdown (0.9 µs enable time), ±150 mA output current at 5.5 V, 3 MHz gain-bandwidth product, and operation from 1.5 V to 5.5 V supply. It serves as a high-current buffer and driver in optical module biasing and LED/TEC control circuits.
For engineers reviewing the OPA2310SIRUGR datasheet, OPA2310SIRUGR pinout, OPA2310SIRUGR application, or OPA2310SIRUGR equivalent, key selection factors include its dual-channel shutdown capability, low 165 µA/ch quiescent current, fail-safe inputs (no diodes to V+), RFI/EMI-filtered pins, and robust 250 pF capacitive load drive without oscillation.
Technical Context
The OPA2310SIRUGR integrates two independent amplifiers in a single 10-pin X2QFN package with separate shutdown controls (SHDN1 and SHDN2), enabling per-channel power gating for duty-cycled signal chains. Its internal EMI filtering and no-phase-reversal input overdrive behavior support reliable operation in noisy environments like optical transceivers.
It features unity-gain stability, a thermal shutdown protection circuit, and internal current limiting-critical for driving LEDs, laser diodes, and 4–20 mA loops where transient overload and thermal stress are common. The device maintains rail-to-rail swing across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.5 V to 5.5 V - supports single-supply battery-powered systems down to Li-ion minimum voltage and logic-compatible 3.3 V/5 V rails. |
| Gain Bandwidth Product | 3 MHz typical at 5.5 V - enables stable closed-loop operation up to ~300 kHz in G = +10 configuration with margin. |
| Output Current | ±150 mA typical at 5.5 V - drives high-current loads such as laser diodes, TECs, or multiple parallel LEDs without external boost stages. |
| Shutdown Enable Time | 0.9 µs typical - allows rapid power cycling in burst-mode optical drivers to reduce average system power by >90%. |
| Input Offset Voltage | ±250 µV typical - ensures <1 mV error in precision reference buffering and low-side current sensing at room temperature. |
| Quiescent Current | 165 µA per channel - enables always-on monitoring functions while maintaining ultra-low standby power in portable instrumentation. |
| Capacitive Load Drive | 250 pF - eliminates need for isolation resistors when driving LCD column lines, DAC output filters, or long PCB traces. |
Pinout & Package
RUG package: 10-pin, 1.5 mm × 2.0 mm X2QFN with exposed thermal pad connected to V–. Compact footprint suits space-constrained optical modules and portable sensor nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V– | Negative supply / ground reference | Common return for both amplifiers and thermal pad anchor; must be low-impedance for stability and thermal performance. |
| V+ | Positive supply | Single positive rail input (1.5–5.5 V); powers both channels and shutdown logic. |
| IN1+, IN1– | Noninverting/inverting inputs, channel 1 | Differential pair with fail-safe structure: no diode to V+, enabling overvoltage tolerance beyond supply rails. |
| IN2+, IN2– | Noninverting/inverting inputs, channel 2 | Independent input stage; identical ESD and RFI filtering as channel 1. |
| OUT1, OUT2 | Amplifier outputs | Rail-to-rail swing capable of sourcing/sinking ±150 mA; short-circuit protected with thermal foldback. |
| SHDN1, SHDN2 | Channel-specific shutdown control | CMOS-compatible logic inputs: high = enabled, low = disabled; output goes high-impedance (43 GΩ || 11.5 pF) during shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Failsafe input structure | No diode from inputs to V+: prevents latch-up and enables safe overvoltage handling up to 6 V beyond V–. |
| Integrated RFI/EMI filtering | On-chip RC filters on all inputs suppress RF ingress from switching supplies or wireless interfaces without external components. |
| Per-channel shutdown | Independent SHDN1/SHDN2 pins allow asymmetric power management-e.g., keep one channel active for monitoring while disabling the other for laser biasing. |
| Thermal and current protection | Internal thermal shutdown and current limiting prevent damage during sustained overload, critical for LED/laser driver reliability. |
| Low-noise operation | 16 nV/√Hz input voltage noise at 1 kHz enables clean amplification in microphone preamps and sensor front-ends without added filtering. |
Applications
| Optical Module Biasing | Reference Buffering |
|---|---|
Use Scenario: Precision DC bias control for edge-emitting lasers (EML) and photodiodes in SFP+/QSFP transceivers. IC Role / Device Role / Timing Role: Dual-channel current source/sink driver with fast shutdown for burst-mode laser pulsing. Use Value: 0.9 µs enable time minimizes dead time between pulses; ±150 mA output sustains modulation current for 10+ Gbps data rates. | Use Scenario: High-impedance buffering of precision voltage references (e.g., REF5025) in ADC/DAC signal chains. IC Role / Device Role / Timing Role: Rail-to-rail unity-gain follower isolating reference from load variations. Use Value: ±250 µV offset and 165 µA quiescent current preserve reference accuracy while minimizing power in battery-operated DAQ systems. |
| LED/Laser Driver | Low-Side Current Sensing |
Use Scenario: Constant-current driver for high-brightness LEDs and thermoelectric coolers (TECs) in medical and industrial lighting. IC Role / Device Role / Timing Role: Transconductance amplifier converting DAC voltage to regulated LED current via external sense resistor. Use Value: 250 pF capacitive load drive stabilizes feedback loop with large-area LED junction capacitance; thermal shutdown prevents overheating during fault conditions. | Use Scenario: Amplification of shunt voltage in 4–20 mA loop transmitters and motor phase current monitors. IC Role / Device Role / Timing Role: Low-offset, high-PSRR difference amplifier measuring mV-level signals across low-value sense resistors. Use Value: 85 dB CMRR at 5.5 V and rail-to-rail input ensure accurate measurement even with ground bounce or supply ripple in industrial PLC I/O modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2322AIDGKR | Lower output current (±65 mA), no shutdown, 20 MHz GBW, higher IQ (1.8 mA/ch) | Better for high-speed signal conditioning; unsuitable for high-current LED/laser driving or power-gated designs | Select when bandwidth >3 MHz is required and shutdown is unnecessary |
| TLV9062IDGKR | Higher output current (±100 mA), shutdown available, 10 MHz GBW, higher IQ (560 µA/ch), no fail-safe inputs | Stronger AC performance but lacks input overvoltage robustness; not recommended for optical modules with ESD-prone connectors | Select for cost-sensitive, high-speed general-purpose use where input protection is handled externally |
Compared with OPA2322AIDGKR and TLV9062IDGKR, the OPA2310SIRUGR uniquely combines high output current, per-channel shutdown, fail-safe inputs, and ultra-low quiescent current-making it optimal for space-constrained, power-aware optical and industrial current-source applications where reliability under overvoltage and thermal stress is mandatory.
Availability
OPA2310SIRUGR is available at Aetrix Electronics and suitable for optical transceiver design, precision reference buffering, and industrial 4–20 mA loop drivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA2310SIRUGR 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 solutions, with leadership in precision amplifiers, data converters, and power management ICs.
The OPAx310 family was designed specifically for high-current, low-voltage, and power-gated applications in optical communications, industrial automation, and portable instrumentation-emphasizing robustness, efficiency, and integration.
FAQ
What is the maximum capacitive load the OPA2310SIRUGR can drive without oscillation?
The OPA2310SIRUGR can drive up to 250 pF of capacitive load while maintaining stability and avoiding sustained oscillations, as verified in the datasheet's Electrical Characteristics table under "CL Drive". This eliminates the need for external isolation resistors in applications like LCD column drivers or DAC output filtering, simplifying layout and reducing component count.
Does the OPA2310SIRUGR have fail-safe inputs, and what does that mean for system design?
Yes, the OPA2310SIRUGR has fail-safe inputs: there are no diodes from the input pins to the V+ rail. This means inputs can safely tolerate voltages up to 6.0 V above V– without causing latch-up or excessive current draw. In optical module designs with hot-pluggable connectors, this protects against ESD-induced damage and allows direct connection to unfiltered sensor or detector outputs without external clamping diodes.
How does the shutdown functionality work on the OPA2310SIRUGR?
The OPA2310SIRUGR provides independent shutdown control via SHDN1 and SHDN2 pins. When pulled low (≤0.2 V above V–), the corresponding amplifier disables, reducing its quiescent current to 0.2–0.375 µA and placing its output in high-impedance state (43 GΩ || 11.5 pF). Enable time is 0.9 µs typical, allowing precise burst-mode control in laser driver and optical transmitter applications using the OPA2310SIRUGR.
What is the operating temperature range of the OPA2310SIRUGR, and how does it affect performance?
The OPA2310SIRUGR operates from –40°C to +125°C ambient temperature. Over this range, key parameters shift predictably: input offset voltage remains within ±1.4 mV, open-loop gain stays ≥90 dB, and output swing degrades only modestly (e.g., VOL increases from 1.2 mV to 25 mV at 1.8 V supply). This makes the OPA2310SIRUGR suitable for under-hood automotive modules and industrial controllers where thermal resilience is critical.
Can the OPA2310SIRUGR be used in single-supply configurations, and what are the input/output voltage limits?
Yes, the OPA2310SIRUGR supports true single-supply operation from 1.5 V to 5.5 V. Its rail-to-rail input range extends from (V–) – 0.1 V to (V+) + 0.1 V at 5.5 V supply, and output swings within 0.75 mV of each rail under light load. This enables full dynamic range utilization in battery-powered sensors and portable instrumentation using the OPA2310SIRUGR without level-shifting circuitry.
OPA2310SIRUGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 165µA (x2 Channels)
- Current - Output / Channel:
- 150 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:
- 10-X2QFN (2x1.5)
OPA2310SIRUGR FAQ
1.How can I place an order for OPA2310SIRUGR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2310SIRUGR 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 OPA2310SIRUGR reliable?
The price and inventory of OPA2310SIRUGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2310SIRUGR is usually 5 days.
3.What payment methods are accepted for OPA2310SIRUGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2310SIRUGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2310SIRUGR?
OPA2310SIRUGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2310SIRUGR 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 OPA2310SIRUGR?
For technical support, including OPA2310SIRUGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2310SIRUGR requirements.
6.How does Aetrix verify that OPA2310SIRUGR is sourced from the original manufacturer or authorized distributors?
All OPA2310SIRUGR 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 OPA2310SIRUGR meets industry standards.
7.What is the process for return or replacement of OPA2310SIRUGR?
All OPA2310SIRUGR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2310SIRUGR, 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 OPA2310SIRUGR part is unused and in its original packaging.
Return procedure for OPA2310SIRUGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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