OPA388QDBVRQ1

1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA • Functional-Safety Capable

– Documentation available to aid functional safety 

system design (OPA388-Q1)

– Documentation available to aid functional safety 

system design (OPA2388-Q1: VSSOP)

• Zero drift: ±0.005 µV/°C

• Zero crossover: 140-dB CMRR true RRIO

• Low noise: 7.0 nV√Hz at 1 kHz

• No 1/f noise: 140 nVPP (0.1 Hz to 10 Hz)

• Fast settling: 2 µs (1 V to 0.01%)

• Gain bandwidth: 10 MHz

• Single supply: 2.5 V to 5.5 V

• Dual supply: ±1.25 V to ±2.75 V

• True rail-to-rail input

• EMI and RFI filtered inputs

• Industry-standard packages: VSSOP-8, SOT-23-5

2 Applications

• HEV/EV inverter and motor control

• Battery management system (BMS)

• DC/DC converter

• Onboard (OBC) and wireless charger

3 Description

The OPA388-Q1 and OPA2388-Q1 (OPAx388-Q1)  are automotive, low-noise, fast-settling, zero-drift,  precision operational amplifiers that provide rail-to-rail  input and output operation. Excellent ac performance,  combined with only 0.25 µV of offset and 0.005 µV/°C  of drift over temperature, make the OPAx388-Q1  a great choice for driving high-resolution, analog-todigital converters (ADCs) with high accuracy. Zerocrossover technology minimizes any offset change  over the common-mode range. The combination of  low drift and very low 1/f noise allow the OPAx388- Q1 to monitor and detect faulty conditions without  compromising signal integrity. These devices are specified over the industrial  temperature range of –40°C to +125°C.

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