ISL28290

Dual Supply Ultra-Low Noise, Ultra-Low Distortion, Rail-to-Rail Output, Op Amp

Product Status: Mass Production

OVERVIEW

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 UTDFN (1.6mmx1.6mm) and 6 Ld SOT-23 packages. The ISL28290 is available in the 10 Ld UTQFN (1.8mmx1.4mm) , 10 Ld MSOP and 8 LD SOIC packages. All devices are guaranteed over -40°C to +125°C.

KEY FEATURES

  • 1nV/√Hz input voltage noise
  • 1kHz THD+N typical 0.00017% at 2VP-P VOUT
  • Harmonic Distortion -87dBc, -90dBc, fo = 1MHz
  • 170MHz -3dB bandwidth
  • 50V/µs slew rate
  • 700µV maximum offset voltage
  • 10µA typical input bias current
  • 103dB 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)

PARAMETRICS

Parameters
ISL28290
Basic Information
Production Status
Mass Production
iSim Model
YES
# of Devices/ Channels
2
Bandwidth (MHz)
170
Slew Rate (V/μs)
50
VS (min)
3 V
VS (max)
5.5 V
IS (per amp)
8.5 mA
Noise VN (nV/√Hz)
1
IBIAS
10 µA
IBIAS (max)
16 µA
Max Offset Voltage
0.7 mV
IOUT
135 mA
VOUT (V)
4.97
Rail-to-Rail Input
-Vs
Rail-to-Rail Output
Yes
PSRR (dB)
80
CMRR (dB)
103
Thermal Shutdown
No
THD (dB)
115
Gain Min
1
AVOL (dB)
102
Enable
Yes
Topology
VFA
Distortion Conditions
2Vpp, 1MHz
Output Headroom (V)
0.05
Qualification Level
Standard
Can Sample
YES
Temperature Range
-40 to +125

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