Description：

The OPA171-Q1 family of devices are 36‑V, single‑supply, low‑noise operational amplifiers that operate over a supply voltage range of 2.7 V (±1.35 V) to 36 V (±18 V). These devices are available in a variety of packages and feature low offset, low drift, and low quiescent current. Single‑, dual‑, and quad‑channel versions have identical specifications to maximize design flexibility. Unlike most op amps, which are specified at only one supply voltage, the OPAx171‑Q1 family is fully rated over the 2.7 V to 36 V range. Input signals that exceed the supply rails do not cause phase reversal. The OPAx171‑Q1 devices are stable with capacitive loads up to 300 pF. The input range operates normally from 100 mV below the negative rail to 2 V above the positive rail. These devices maintain rail‑to‑rail input operation up to 100 mV above the positive rail, but with degraded performance when within 2 V of the positive rail. The OPAx171‑Q1 op‑amp family is specified for operation from –40 °C to +125 °C.

Features：

• Qualified for automotive applications

• AEC‑Q100 qualified with the following results:

– Temperature Grade 1: –40 °C to +125 °C ambient operating temperature range

– Device HBM ESD classification level:

• OPA171‑Q1: Class 3A

• OPA4171‑Q1: Class 2

– Device CDM ESD classification level:

• OPA171‑Q1 and TLV171‑Q1: Class C4A

• OPA2171‑Q1: Class C6

• OPA4171‑Q1: Class C6

• Supply voltage range:

– Single supply: 2.7 V to 36 V

– Dual supply: ±1.35 V to ±18 V

• Low noise: 14 nV/√Hz at 1 kHz

• Low drift: ±0.3 µV/°C (typical)

• Input range includes negative supply rail

• Input range operates up to the positive supply rail, with degraded performance

• Rail‑to‑rail output

• Gain bandwidth: 3 MHz

• Low quiescent current: 475 µA per amplifier

• High common‑mode rejection: 120 dB (typical)

• Low input bias current: 10 pA

• Industry‑standard packages: – 5‑pin SOT‑23 (DBV) package

Applications：

• Tracking amplifiers in power supply modules

• Commercial power supplies

• Sensor amplifiers

• Bridge amplifiers

• Temperature measurement

• Strain gauge amplifiers

• Precision integrators

• Battery‑powered instruments

• Test equipment