1 Features

? High output current: ±150mA typical ISC at 5.5V

? Fast enable from shutdown: 0.9μs typical

? Wide operational supply voltage: 1.5V to 5.5V

? Low input offset voltage: ±250μV typical

? Fail-safe inputs: No diode from inputs to V+

? Optimized quiescent current: 165μA/ch typical

? Rail-to-rail input and output

? Gain bandwidth product: 3MHz typical at 5.5V

? Thermal noise floor: 16nV/√Hz typical

? Unity-gain stable

? Drives up to 250pF without sustained oscillations

? Internal RFI and EMI filtered input pins

? Operating temperature range: –40°C to 125°C

2 Applications

? Optimized for AEC-Q100 grade 1 applications

? Traction inverter

? Battery management systems (BMS)

? On-board charger (OBC) and wireless charger

? HEV/EV DC/DC converter

? Body electronics and lighting

3 Description

The OPAx310-Q1 family of op amps includes single

(OPA310-Q1), dual (OPA2310-Q1), and quad-channel

(OPA4310-Q1), low-voltage (1.5V to 5.5V), high

output current operational amplifiers (op amps) with

rail-to-rail input and output swing capabilities. The

OPAx310-Q1S also features a very fast shutdown

response and has a typical enable time of 0.9μs

that allows for power savings when the application

involves duty cycling the amplifier signal chain.

OPAx310-Q1 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-Q1 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-Q1 can swing very close to the

rails and has a short-circuit current of 75mA 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-Q1

devices are an excellent choice for LED driver and

other high current applications and can also be used

as a reference buffer, guard amplifier, or as a discrete

LDO.

The robust design of the OPAx310-Q1 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 250pF of

capacitor load with no sustained oscillations, enabling

designers to achieve both improved performance and

a lower-power consumption.