ISL28290

Features:

• 1nV/Hz input voltage noise
• Harmonic Distortion -87dBc, -90dBc, fo = 1MHz
• 170MHz -3dB bandwidth
• 50V/s slew rate
• 700V maximum offset voltage
• 10A typical input bias current
• 103dB typical CMRR
• 3V to 5.5V single supply voltage range
• Rail-to-rail output
• Ground sensing
• Enable pin
• Pb-free plus anneal available (RoHS compliant)




Application

• Low noise signal processing
• Low noise microphones/preamplifiers
• ADC buffers
• DAC output amplifiers
• Digital scales
• Strain gauges/sensor amplifiers
• Radio systems
• Portable equipment
• Infrared detectors




Pinout






Specifications

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Supply Turn On Voltage Slew Rate . . . . . . . . . . . . . . . . . . . 1V/s
Differential Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . .V- - 0.5V to V+ + 0.5V
ESD Tolerance
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3kV
Machine Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .300V




Description

The ISL28190 and ISL28290 are tiny single and dual ultra-low noise, ultra-low distortion operational amplifiers. Fully specified to operated down to +3V single supply. These amplifiers have outputs that swing rail-to-rail, and an input common mode voltage that extends below ground (ground sensing). The ISL28190 and ISL28290 are unity gain stable with an input referred voltage noise of 1nV/Hz. Both parts feature 0.00017% THD+N @ 1kHz. The ISL28190 is available in the space-saving 6 Ld TDFN (1.6mmx1.6mm) and 6 Ld SOT-23 packages. The ISL28290 is available in the 10 Ld TQFN (1.8mmx1.4mm) and 10 Ld MSOP packages. All devices are guaranteed over -40C to +125C.