ISL28291: Dual Supply Ultra-Low Noise, Low Distortion Rail-to-Rail Output, Op Amp
The ISL28191 and ISL28291 are tiny single and dual ultra-low noise, ultra-low distortion operational amplifiers. They are fully specified to operate down to +3V single supply. These amplifiers have outputs that swing rail-to-rail and an input common mode voltage that extends to ground(ground sensing).
The ISL28191 and ISL28291 are unity gain stable with an input referred voltage noise of 1.7nV/√Hz. Both parts feature 0.00018% THD+N at 1kHz.
The ISL28191 is available in the space-saving 6 Ld UTDFN (1.6mmx1.6mm) and 6 Ld SOT-23 packages. The ISL28291 is available in the 8 Ld SOIC, 10 Ld 1.8mmx1.4mm UTQFN and 10 Ld MSOP packages. All devices are guaranteed over -40°C to +125°C.
Key Features
- 1.7nV/√Hz input voltage noise at 1kHz
- 1kHz THD+N typical 0.00018% at 2VP-P VOUT
- Harmonic Distortion -76dBc, -70dBc, fo = 1MHz
- 61MHz -3dB bandwidth
- 630µV maximum offset voltage
- 3µA input bias current
- 100dB typical CMRR
- 3V to 5.5V single supply voltage range
- Rail-to-rail output
- Ground Sensing
- Enable pin (not available in the 8 Ld SOIC package option)
- Pb-free (RoHS compliant)
Applications
- 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
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| AN1652: iSim:PE Users Guide | 13 Nov 2014 | 1.45 MB | ||
| AN1613: From SPICE Netlist to Allegro Design Sub-circuit | 13 Nov 2014 | 925 KB | ||
| AN1560: Making Accurate Voltage Noise and Current Noise Measurements on Operational Amplifiers Down to 0.1Hz | 13 Nov 2014 | 1.8 MB | ||
| AN1561: Radiated Interference in Audio Circuits | 13 Nov 2014 | 370 KB | ||
| AN1556: Building an Accurate SPICE Model for Low Noise, Low Power Precision Amplifiers | 13 Nov 2014 | 866 KB | ||
| AN1548: Manual for the iSim Active Filter Designer | 13 Nov 2014 | 6.5 MB | ||
| AN1299: Measuring RF Interference in Audio Circuits | 13 Nov 2014 | 366 KB |
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| ISL28191, ISL28291 Datasheet | 17 Nov 2014 | 1.58 MB |
| Title | Type | Updated | Size | Other Languages |
|---|---|---|---|---|
| ISL2829xEVAL1Z, ISL5529xEVAL1Z User Guide | 13 Nov 2014 | 346 KB |
| Part Number | Package Type | Weight(g) | Pins | MSL Rating | Peak Temp (°C) | RoHS Status |
|---|---|---|---|---|---|---|
| ISL28291FBZ | 8 Ld SOIC | 0.072 | 8 | 3 | 260 | RoHS |
| ISL28291FBZ-T7 | 8 Ld SOIC T+R | 0.072 | 8 | 3 | 260 | RoHS |
| ISL28291FRUZ-T7 | 10 Ld uTQFN T+R | 0.0035 | 10 | 3 | 260 | RoHS |
| ISL28291FUZ | 10 Ld MSOP | 0.026 | 10 | 2 | 260 | RoHS |
| ISL28291FUZ-T7 | 10 Ld MSOP T+R | 0.026 | 10 | 2 | 260 | RoHS |
| ISL28291EVAL1Z | N/A | RoHS | ||||
- ISL28191, ISL28291 Datasheet 17 Nov 2014
- 8 Ld SOIC T+R ISL1208
- 10 Ld uTQFN T+R ISL54060
- 10 Ld MSOP T+R EL7515
- ISL28191, ISL28291 Macromodel 31 Oct 2014
- ISL28191
- AN1652: iSim:PE Users Guide 13 Nov 2014
- AN1613: From SPICE Netlist to Allegro Design Sub-circuit 13 Nov 2014
- AN1560: Making Accurate Voltage Noise and Current Noise Measurements on Operational Amplifiers Down to 0.1Hz 13 Nov 2014
- AN1561: Radiated Interference in Audio Circuits 13 Nov 2014
- AN1556: Building an Accurate SPICE Model for Low Noise, Low Power Precision Amplifiers 13 Nov 2014
- AN1548: Manual for the iSim Active Filter Designer 13 Nov 2014
- AN1299: Measuring RF Interference in Audio Circuits 13 Nov 2014
- ISL2829xEVAL1Z, ISL5529xEVAL1Z User Guide 13 Nov 2014
