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OPA2310

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Dual-channel, 5.5-V, 3-MHz high-output-current (150-mA) fast-shutdown (1-μs) operational amplifier

Product details

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.5 Rail-to-rail In, Out GBW (typ) (MHz) 3 Slew rate (typ) (V/µs) 3 Vos (offset voltage at 25°C) (max) (mV) 1.3 Iq per channel (typ) (mA) 0.165 Vn at 1 kHz (typ) (nV√Hz) 16 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.5 Features Shutdown, Small Size Input bias current (max) (pA) 30 CMRR (typ) (dB) 95 Iout (typ) (A) 0.15 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.001 Output swing headroom (to positive supply) (typ) (V) -0.001
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 1.5 Rail-to-rail In, Out GBW (typ) (MHz) 3 Slew rate (typ) (V/µs) 3 Vos (offset voltage at 25°C) (max) (mV) 1.3 Iq per channel (typ) (mA) 0.165 Vn at 1 kHz (typ) (nV√Hz) 16 Rating Catalog Operating temperature range (°C) -40 to 125 Offset drift (typ) (µV/°C) 0.5 Features Shutdown, Small Size Input bias current (max) (pA) 30 CMRR (typ) (dB) 95 Iout (typ) (A) 0.15 Architecture CMOS Input common mode headroom (to negative supply) (typ) (V) -0.1 Input common mode headroom (to positive supply) (typ) (V) 0.1 Output swing headroom (to negative supply) (typ) (V) 0.001 Output swing headroom (to positive supply) (typ) (V) -0.001
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9 WSON (DSG) 8 4 mm² 2 x 2 X2QFN (RUG) 10 3 mm² 1.5 x 2
  • High output current: ±150-mA typical ISC at 5.5 V
  • Fast enable from shutdown: 0.9-µs typical
  • Wide operational supply voltage: 1.5 V to 5.5 V
  • Low input offset voltage: ±250-µV typical
  • Fail-safe inputs: No diode from inputs to V+
  • Optimized quiescent current: 165-µA/ch typical
  • Rail-to-rail input and output
  • Gain bandwidth product: 3-MHz typical at 5.5 V
  • Thermal noise floor: 16-nV/√Hz typical
  • Unity-gain stable
  • Drives up to 250-pF without sustained oscillations
  • Internal RFI and EMI filtered input pins
  • Operating temperature range: –40°C to 125°C
  • High output current: ±150-mA typical ISC at 5.5 V
  • Fast enable from shutdown: 0.9-µs typical
  • Wide operational supply voltage: 1.5 V to 5.5 V
  • Low input offset voltage: ±250-µV typical
  • Fail-safe inputs: No diode from inputs to V+
  • Optimized quiescent current: 165-µA/ch typical
  • Rail-to-rail input and output
  • Gain bandwidth product: 3-MHz typical at 5.5 V
  • Thermal noise floor: 16-nV/√Hz typical
  • Unity-gain stable
  • Drives up to 250-pF without sustained oscillations
  • Internal RFI and EMI filtered input pins
  • Operating temperature range: –40°C to 125°C

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.

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.

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Technical documentation

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* 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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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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