OPA4991TQPWRQ1

The OPAx991-Q1 family (OPA991-Q1, OPA2991-Q1, and OPA4991-Q1) is a family of high voltage (40V) general purpose operational amplifiers for automotive application. These devices offer exceptional DC precision and AC performance, including rail-to-rail input or output, low offset (±125 μV, typical), low offset drift (±0.3 μV/°C, typical), low noise (10.8 nV/√Hz and 1.8 μVPP), and 4.5-MHz bandwidth. Unique features such as differential and commonmode input-voltage range to the supply rail, high output current (±75 mA), high slew rate (21 V/μs), and high capacitive load drive (1 nF) make the OPAx991-Q1 a robust, high-performance operational amplifier for high-voltage automotive applications. The OPAx991-Q1 family of op amps is available in standard packages (such as SOT-23, SC70, SOIC, VSSOP, and TSSOP) and is specified from -40°C to 125°C.

Applications

• Optimized for AEC-Q100 grade 1 applications
• Infotainment and cluster
• Passive safety
• Body electronics and lighting
• HEV/EV inverter and motor control
• On-board (OBC) and wireless charger
• Powertrain current sensor
• Advanced driver assistance systems (ADAS)
• High-side current sensing

Key features

• AEC-Q100 qualified for automotive applications
• Temperature grade 1: -40°C to +125°C, TA
• Device HBM ESD classification level 2A
• Device CDM ESD classification level C6
• Low offset voltage: ±125 μV
• Low offset voltage drift: ±0.3 μV/°C
• Low noise: 10.8 nV/√Hz at 1 kHz
• High common-mode rejection: 130 dB
• Low bias current: ±10 pA
• Rail-to-rail input and output
• Wide bandwidth: 4.5 MHz GBW
• High slew rate: 21 V/μs
• High capacitive load drive: 1 nF
• MUX-friendly/comparator inputs
• Amplifier operates with differential inputs up to supply rail
• Amplifier can be used in open-loop or as comparator
• Low quiescent current: 560 μA per amplifier
• Wide supply: ±1.35 V to ±20 V, 2.7 V to 40 V
• Robust EMIRR performance