Dual and Quad Micropower Chopper Stabilized, RRIO Operational Amplifiers

The ISL28233 and ISL28433 are dual and quad micropower, chopper stabilized operational amplifiers that are optimized for single and dual supply operation from 1.65V 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.

FEATUREs
• Low Input Offset Voltage . . . . . . . . . . . . . . . . . . . . . . 6µV, Max.
• Low Offset Drift . . . . . . . . . . . . . . . . . . . . . . . 0.05µV/°C, Max.
• Quiescent Current (Per Amplifier) . . . . . . . . . . . . . .18µA, Typ.
• Single Supply Range . . . . . . . . . . . . . . . . . . . +1.65V 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