The ISL28130, ISL28230 and ISL28430 are single, dual and
quad micropower, low offset drift operational amplifiers that
are optimized for single and dual supply operation from 1.8V
to 5.5V and ±0.9V to ±2.75V. Their low supply current of 20µA
and rail-to-rail input/output enable the ISL28130, ISL28230,
and ISL28430 to be an excellent general-purpose op amp for a
range of applications. The ISL28130, ISL28230 and ISL28430
are ideal for handheld devices that operate off 2AA or single
Li-ion batteries.
The ISL28130 is available in industry standard pinouts for 5 Ld
SOT-23, 5 Ld SC70 and 8 Ld SOIC packages. The ISL28230 is
available in industry standard pinouts for 8 Ld MSOP, 8 Ld
SOIC and 8 Ld DFN packages. The ISL28430 is available in
14 Ld TSSOP and 14 Ld SOIC packages. Commercial devices
operate over the temperature range of 0°C to 70°C. Full
temperature range devices operate over the temperature
range of -40°C to 125°C.

Features
• Low input offset voltage . . . . . . . . . . . . . . . . . . . . . 40µV, Max.
• Low offset drift . . . . . . . . . . . . . . . . . . . . . . . . .150nV/°C, Max.
• Input bias current. . . . . . . . . . . . . . . . . . . . . . . . . .250pA, Max.
• Quiescent current (per amplifier). . . . . . . . . . . . . . .20µA, Typ.
• Single supply range . . . . . . . . . . . . . . . . . . . . . .+1.8V to +5.5V
• Dual supply range . . . . . . . . . . . . . . . . . . . . . .±0.9V to ±2.75V
• Low noise (0.01Hz to 10Hz) . . . . . . . . . . . . . . . . 1.1µVP-P, Typ.
• Rail-to-rail inputs and output

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