The ISL28233 and ISL28433 are dual and quad micropower,
chopper stabilized operational amplifiers that are optimized for
single and dual supply operation from 1.8V to 6.0V and ±0.825V
to ±3.0V. Their low supply current of 18µA and wide input range
enable the ISL28233, ISL28433 to be excellent general purpose
op amps for a wide range of applications. The ISL28233 and
ISL28433 are ideal for handheld devices that operate off 2 AA or
single Li-ion batteries.
The ISL28233 is available in 8 Ld MSOP, 8 Ld SOIC and 8 Ld DFN
packages. The ISL28433 is available in 14 Ld TSSOP, 14 Ld SOIC
and 14 Ld 3mmx4mm TDFN packages. All devices operate over
the temperature range of -40°C to +125°C.

Features
• Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . . 6µV, Max.
• Low Offset Drift . . . . . . . . . . . . . . . . . . . . . . . 0.05µV/°C, Max.
• Quiescent Current (Per Amplifier) . . . . . . . . . . . . . .18µA, Typ.
• Single Supply Range . . . . . . . . . . . . . . . . . . . . .+1.8V to +6.0V
• Dual Supply Range. . . . . . . . . . . . . . . . . . . . ±0.825V to ±3.0V
• Low Noise (0.01Hz to 10Hz) . . . . . . . . . . . . . . . . . 1.0µVP-P, Typ.
• Rail-to-Rail Inputs and Output
• Input Bias Current . . . . . . . . . . . . . . . . . . . . . . . . .180pA, Max.
• Operating Temperature Range . . . . . . . . . . . .-40°C to +125°C

Applications
• Bi-Directional Current Sense
• Temperature Measurement
• Medical Equipment
• Electronic Weigh Scales
• Precision/Strain Gauge Sensor
• Precision Regulation
• Low Ohmic Current Sense
• High Gain Analog Front Ends