Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail, Low Power Op Amp

The ISL55191 and ISL55291 are single and dual high speed operational amplifiers featuring low noise, low distortion, and rail-to-rail output drive capability. They are designed to operate with single and dual supplies from +5VDC (±2.5VDC) down to +3VDC (±1.5VDC). These amplifiers draw 6.1mA of quiescent supply current per amplifier. For power conservation, this family offers a low-power shutdown mode that reduces supply current to 21µA and places the amplifiers output into a high impedance state.

Features

• 1.3nV/√Hz input voltage noise, fO = 1kHz

• Harmonic Distortion -94dBc, -104dBc, fO = 1MHz

• Stable at gains as low as 10

• 800MHz gain bandwidth product (AV = 10)

• 260V/µs slew rate

• 6.1mA supply current (21µA in disable mode)

• 800µV maximum offset voltage

• 12µA input bias current

• 3V to 5.5V single supply voltage range

• Rail-to-rail output

• Pb-free plus anneal available (RoHS compliant)

Applications

• High speed pulse applications

• Low noise signal processing

• ADC buffers

• DAC output amplifiers

• Radio systems

• Portable equipment