ISL55190
Single and Dual Ultra-Low Noise, Ultra-Low Distortion, Low Power Op Amp
Key Features
- 1.2nV/√Hz input voltage noise, fO = 1kHz
- Harmonic Distortion -95dBc, -92dBc, fO = 4MHz
- Stable at gains as low as 5
- 800MHz gain bandwidth product (AV = 5)
- 268V/µs typical slew rate
- 16mA typical supply current (21µA in disable mode)
- 300µV typical offset voltage
- 25µA typical input bias current
- 3V to 5V single supply voltage range
- Rail-to-rail output
- Enable pin
- Pb-free plus anneal available (RoHS compliant)
Description
The ISL55190 and ISL55290 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 16mA 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. The ISL55190 ENABLE logic places the device in the shutdown mode with EN = 0 and the ISL55290 is placed in the shutdown mode with EN = 1.
These amplifiers have excellent input and output overload recovery times and outputs that swing rail-to-rail. Their input common mode voltage range includes ground. The ISL55190 and ISL55290 are stable at gains as low as 5 with an input referred noise voltage of 1.2nV/√Hz and harmonic distortion products -95dBc (2nd) and -92dBc (3rd) below a 4MHz 2VP-P signal.
The ISL55190 is available in space-saving 8 Ld DFN and 8 Ld SOIC packages. The ISL55290 is available in a 10 Ld MSOP package.
Applications
- High speed pulse applications
- Low noise signal processing
- ADC buffers
- DAC output amplifiers
- Radio systems
- Portable equipment
