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Texas Instruments OPA2310IDSGR
- Part No.:
- OPA2310IDSGR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
OPA2310IDSGR.pdf
- Description:
- DUAL-CHANNEL, 5.5-V, 3-MHZ, HIGH
- Quantity:
- Payment:
- Shipping:
Inventory:5,334
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Product details
Overview
OPA2310IDSGR from Texas Instruments is a dual-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, ±250µV typical input offset voltage, and operates across –40°C to +125°C - ideal for LED drivers, 4–20mA loop transmitters, and optical module biasing.
For engineers reviewing the OPA2310IDSGR datasheet, OPA2310IDSGR pinout, OPA2310IDSGR application, or OPA2310IDSGR equivalent, this page provides verified specifications, package-validated pin functions, real-world use cases in industrial sensing and precision current sourcing, and two confirmed alternative parts with documented functional and layout implications.
Technical Context
The OPA2310IDSGR integrates two independent amplifiers in an 8-pin WSON (DSG) package with exposed thermal pad connected to V–. Each channel features fail-safe inputs (no diode to V+), internal RFI/EMI filtering, unity-gain stability, and robust short-circuit protection (±75mA min at 5.5V).
It supports single-supply operation down to 1.5V with rail-to-rail swing, drives up to 250pF capacitive loads without oscillation, and achieves 16nV/√Hz input voltage noise density at 1kHz - enabling high-fidelity signal conditioning in space-constrained, low-power systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Dual independent amplifiers - enables compact dual-path signal conditioning or differential drive without external matching components. |
| Supply Voltage Range | 1.5V to 5.5V - supports direct integration with Li-ion, coin-cell, and 3.3V/5V logic rails without level-shifting. |
| Gain Bandwidth Product | 3MHz at 5.5V - sufficient for closed-loop bandwidths up to ~2.5MHz in G=+1 configuration with 100pF load. |
| Output Current (ISC) | ±75mA minimum at 5.5V - drives LEDs, laser diodes, or 4–20mA loop loads directly without external boost stages. |
| Input Offset Voltage | ±250µV typical - ensures <0.5% error in 100mV reference buffers and <0.025% error in 1V guard-amplifier configurations. |
| Quiescent Current | 165µA per channel - enables always-on sensor interfaces with sub-330µA total supply current at 5.5V. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and telecom optical module environments. |
Pinout & Package
OPA2310IDSGR uses an 8-pin WSON (DSG) package (2mm × 2mm) with exposed thermal pad soldered to V– for enhanced thermal dissipation. Pin numbering follows standard top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Output, Channel 1 | Delivers amplified signal; capable of ±75mA sink/source at 5.5V; rail-to-rail swing within 10mV of rails (RL = 10kΩ). |
| IN1– | Inverting Input, Channel 1 | High-impedance node (100GΩ || 0.5pF); no ESD diode to V+, enabling safe overvoltage tolerance beyond supply rails. |
| IN1+ | Noninverting Input, Channel 1 | Same impedance and overvoltage robustness as IN1–; common-mode range extends 0.1V beyond rails at 5.5V supply. |
| V– | Negative Supply / Ground | Reference for both channels; thermal pad must be connected to this pin for rated thermal performance (RθJB = 56.3°C/W). |
| IN2+ | Noninverting Input, Channel 2 | Independent input path; CMRR ≥75dB at 5.5V ensures minimal crosstalk when used in dual-sensor configurations. |
| IN2– | Inverting Input, Channel 2 | Matched to IN1– in offset drift (±0.5µV/°C) and bias current (<30pA), supporting precision differential sensing. |
| OUT2 | Output, Channel 2 | Functionally identical to OUT1; enables dual-channel LED biasing or independent current-source control paths. |
| V+ | Positive Supply | Accepts 1.5V–5.5V; PSRR ≥83dB minimizes supply ripple coupling into output signals at DC–10kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in low-voltage systems (e.g., 1.8V ADC reference buffering with <10mV headroom loss). |
| Fail-safe inputs | No diode clamp to V+ allows input signals up to 6.0V even when V+ = 1.5V - critical for fault-tolerant sensor front-ends. |
| RFI/EMI filtered pins | Integrated input filtering suppresses 1.8GHz interference (EMIRR = 75dB), eliminating need for external ferrite beads in noisy industrial environments. |
| 250pF capacitive load drive | Stable operation into LCD panel capacitance or long PCB traces without external compensation - reduces BOM count and layout iterations. |
| Thermal shutdown protection | Prevents latch-up during sustained overload (e.g., LED short-circuit), ensuring system reliability without external current-limit circuitry. |
Applications
| Optical Module Biasing | 4–20mA Loop Driver |
|---|---|
Use Scenario: Precise current control for laser diodes or EMLs in SFP+/QSFP transceivers, requiring stable bias under temperature variation and EMI-rich board environments. IC Role / Device Role / Timing Role: Dual-channel OPA2310IDSGR serves as current-sense amplifier and TEC driver buffer, delivering matched gain and offset tracking between channels. Use Value: ±250µV offset and ±0.5µV/°C drift ensure <±0.1% current accuracy over –40°C to +125°C; RFI filtering maintains signal integrity near RF sections. |
Use Scenario: Industrial process control transmitter converting sensor voltage to standardized 4–20mA analog output with HART modulation capability. IC Role / Device Role / Timing Role: OPA2310IDSGR configures as precision voltage-to-current converter (Howland current source) with rail-to-rail output swing into 250Ω load. Use Value: ±150mA output current drives 250Ω load at 5V supply with <10mV compliance margin; 3MHz GBW supports >10kHz HART signal superposition. |
| Low-Side Current Sensing | LED/Laser Driver Reference Buffer |
Use Scenario: High-side switch monitoring via shunt resistor on ground-return path in battery-powered IoT nodes, where supply headroom is limited. IC Role / Device Role / Timing Role: OPA2310IDSGR operates in single-supply mode (1.8V) as differential amplifier, rejecting common-mode noise from motor switching. Use Value: Rail-to-rail input accepts 0V–1.8V common-mode range; 165µA quiescent current enables multi-year battery life in always-on monitoring. |
Use Scenario: Stabilizing reference voltage for constant-current LED drivers in automotive lighting, where EMI from ignition systems threatens regulation accuracy. IC Role / Device Role / Timing Role: OPA2310IDSGR acts as low-noise, high-PSRR buffer between voltage reference IC and LED current-setting resistor. Use Value: 16nV/√Hz noise floor prevents luminance flicker; 85dB PSRR at 1kHz rejects power-supply ripple; fail-safe inputs tolerate load-dump transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-voltage, high-output-current op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2313IDR | Lower output current (±25mA), higher IQ (150µA/ch), same 3MHz GBW and rail-to-rail I/O - no thermal shutdown or EMI filtering. | Suitable for low-power sensor interfaces but not for LED/laser driving or 4–20mA loops requiring >±50mA. | Select OPA2313IDR only when output current demand is <±30mA and EMI immunity is non-critical. |
| LMV358IDR | Lower GBW (1MHz), higher offset (±3mV), no fail-safe inputs, no EMI filtering, wider supply range (2.7–5.5V) - lacks short-circuit protection. | Acceptable for cost-sensitive consumer applications but unsuitable for industrial temperature range or overvoltage-prone inputs. | Choose LMV358IDR only for benign environments with <85°C ambient and no input overvoltage risk. |
Compared with OPA2310IDSGR, OPA2313IDR trades output drive and robustness for lower quiescent current, while LMV358IDR sacrifices precision, speed, and protection for legacy compatibility and cost - neither offers pin compatibility or drop-in replacement capability.
Availability
OPA2310IDSGR is available at Aetrix Electronics and suitable for optical transceiver design, industrial 4–20mA loop systems, and automotive LED lighting applications requiring stable component supply, extended temperature qualification, and high-reliability packaging.
Supply support for OPA2310IDSGR 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 amplifiers and industrial-grade signal chain solutions.
The OPAx310 product line was designed specifically for low-voltage, high-output-current applications in optical modules, programmable current sources, and robust industrial sensing - emphasizing rail-to-rail operation, EMI resilience, and thermal safety.
FAQ
What is the maximum capacitive load the OPA2310IDSGR can drive without oscillation?
The OPA2310IDSGR is specified to drive up to 250pF with no sustained oscillations under unity-gain conditions (RL = 10kΩ to VS/2). This capability eliminates the need for external compensation in LCD biasing, long-trace sensor interfaces, or capacitive DAC buffering - verified across –40°C to +125°C and 1.5V–5.5V supply range.
Does the OPA2310IDSGR have built-in ESD protection, and what are its HBM/CDM ratings?
Yes, the OPA2310IDSGR features integrated ESD protection with ±4000V HBM (Human Body Model) and ±1500V CDM (Charged Device Model) ratings. Its fail-safe input structure - lacking diodes to V+ - further enhances robustness against transient overvoltage events common in industrial and optical module environments.
Can the OPA2310IDSGR operate from a single 1.8V supply, and what is its input common-mode range at that voltage?
Yes, the OPA2310IDSGR operates from 1.5V to 5.5V supplies, including 1.8V. At 1.8V, its input common-mode range spans (V–) to (V+) - i.e., 0V to 1.8V - with rail-to-rail output swing within 21mV of either rail (RL = 2kΩ), enabling full utilization of low-voltage ADC references and sensor signal chains.
What is the thermal resistance (RθJA) of the OPA2310IDSGR in its DSG package, and how does the exposed pad affect it?
The OPA2310IDSGR in the 8-pin WSON (DSG) package has a junction-to-ambient thermal resistance (RθJA) of 90.1°C/W when mounted per JEDEC standards. The exposed thermal pad must be soldered to the V– plane to achieve this rating; omitting pad connection degrades thermal performance significantly and risks thermal shutdown under sustained 100mA output loads.
Is the OPA2310IDSGR suitable for driving laser diodes directly, and what output current capability does it provide at 3.3V supply?
Yes, the OPA2310IDSGR is explicitly designed for laser diode biasing. At 3.3V supply, it delivers ±75mA minimum short-circuit current - sufficient to drive most edge-emitting lasers and VCSELs in optical modules. Its fast enable time (0.9µs) supports pulsed operation, and rail-to-rail output ensures precise current-setpoint accuracy.
OPA2310IDSGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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:
- 8-WSON (2x2)
OPA2310IDSGR FAQ
1.How can I place an order for OPA2310IDSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2310IDSGR 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 OPA2310IDSGR reliable?
The price and inventory of OPA2310IDSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2310IDSGR is usually 5 days.
3.What payment methods are accepted for OPA2310IDSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2310IDSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2310IDSGR?
OPA2310IDSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2310IDSGR 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 OPA2310IDSGR?
For technical support, including OPA2310IDSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2310IDSGR requirements.
6.How does Aetrix verify that OPA2310IDSGR is sourced from the original manufacturer or authorized distributors?
All OPA2310IDSGR 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 OPA2310IDSGR meets industry standards.
7.What is the process for return or replacement of OPA2310IDSGR?
All OPA2310IDSGR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2310IDSGR, 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 OPA2310IDSGR part is unused and in its original packaging.
Return procedure for OPA2310IDSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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