The OPAx310 family of op amps includes single (OPA310), dual (OPA2310), and quad-channel (OPA4310), low-voltage (1.5 V to 5.5 V), high output current operational amplifiers (op amps) with rail-to-rail input and output swing capabilities. The OPAx310S also features a very fast shutdown response and has a typical enable time of 0.9-µs that allows for power savings when the application involves duty cycling the amplifier signal chain. OPAx310 family has a robust ESD performance with fail safe input ESD structure where there are no diodes connected from inputs to the positive power supply rail.
OPAx310 is offered in power pad, standard, small size package variants and has an internal current limit protection, thermal shutdown protection that enables additional robustness when operating with high output current. OPAx310 can swing very close to the rails and has a short-circuit current of 75-mA minimum across temperature at 5.5-V power supply. Additional output current capability can be achieved by carefully connecting multiple op amps in parallel. OPAx310 devices are an excellent choice for LED driver, LCD driver, laser driver, TEC driver applications and can also be used as a reference buffer, guard amplifier, or as a discrete LDO.
The robust design of the OPAx310 family simplifies circuit design. These op amps feature an integrated RFI and EMI rejection filter with no-phase reversal in input overdrive conditions. These devices also deliver excellent AC performance with a gain bandwidth of 3 MHz and can drive up to 250 pF of cap load with no sustained oscillations, enabling designers to achieve both improved performance and a lower-power consumption.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | OPAx310 High Output Current, Fast Shutdown, Low Voltage (1.5 V to 5.5 V), RRIO, 3-MHz Operational Amplifier datasheet (Rev. E) | PDF | HTML | 15 Dec 2022 |
| Application note | Fast Enable Amplifier With Fail-Safe Input ESD | PDF | HTML | 11 May 2023 | |
| Application note | Benefits of Op-Amps with High Output Current | PDF | HTML | 03 Apr 2023 | |
| Application note | Op Amp ESD Protection Structures (Rev. A) | PDF | HTML | 24 Jan 2023 | |
| Technical article | What is an op amp? | 21 Jan 2020 | ||
| Technical article | How to lay out a PCB for high-performance, low-side current-sensing designs | 06 Feb 2018 | ||
| Technical article | Low-side current sensing for high-performance cost-sensitive applications | 22 Jan 2018 | ||
| Technical article | Voltage and current sensing in HEV/EV applications | 22 Nov 2017 |
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Speed up your op amp prototyping and testing with the DIP adapter evaluation module (DIP-ADAPTER-EVM), which provides a fast, easy and inexpensive way to interface with small surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them (...)
The DIYAMP-EVM is an evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT-23 and SOIC) (...)
| Package | Pins | Download |
|---|---|---|
| SOIC (D) | 8 | View options |
| VSSOP (DGK) | 8 | View options |
| WSON (DSG) | 8 | View options |
| X2QFN (RUG) | 10 | View options |
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