Dual-Supply, High-Precision Operational Amplifier Designed for Front-End Amplifier Applications

The ADA4077-2 has a typical bandwidth of 3.9 MHz and 7-nV/√ Hz voltage noise at 1 kHz while consuming only 400 µA typical at 25°C with ±15-Vdc nominal power supplies. Available in two grades for offset and thermal drift, the device provides design engineers with the flexibility to meet budget and packaging requirements.



Compared to its closest competition, the ADA4077-2 offers higher speed with lower noise, offset and drift while consuming less power, making the ADA4077-2 an ideal, cost-effective op amp for use in front end sensor interfaces in applications such as process control input modules, where high accuracy, precision, and linearity are critical to accurate measurement of sensor output.



ADA4077-2 Precision Operational Amplifier Key Features:



• Low offset voltage: 25µV maximum (B-Grade)

• Low offset voltage drift: 0.25 µV/°C maximum (B-Grade)

• Low input bias current: <1.0 nA maximum

• Input voltage range: V- +1.2 V to V+ -2 V

• Low noise: 7 nV/√Hz typical

• Low supply current: 400 µA per amplifier typical

• Specified for dual voltage supply operation from ±5 V to ±15 V



Availability, Pricing and Complementary Products







The ADA4077-2 precision amplifier is well suited to operate with ADI’s 12-, 14- and 16-bit D/A converters and A/D converters up to 1 MSPS, including the AD5444, AD7265 and AD7266.