LMP2232BMAE/NOPB

The LMP2232 is a dual micropower precision amplifier designed for battery powered applications. The 1.6V to 5.5V operating supply voltage range and quiescent power consumption of only 26 μW extend the battery life in portable systems. The high impedance CMOS input makes it ideal for instrumentation and other sensor interface applications. The LMP2232 has a maximum offset voltage of 150 μV and maximum offset voltage drift of only 0.5 μV/°C along with low bias current of only ±20 fA. These precise specifications make the LMP2232 a great choice for maintaining system accuracy and long term stability. The LMP2232 has a rail-to-rail output that swings 15 mV from the supply voltage, which increases system dynamic range. The common mode input voltage range extends 200 mV below the negative supply, thus the LMP2232 is ideal for ground sensing in single supply applications. The LMP2232 is offered in 8-pin SOIC and VSSOP packages.

Applications

• Precision Instrumentation Amplifiers
• Battery Powered Medical Instrumentation
• High Impedance Sensors
• Strain Gauge Bridge Amplifier
• Thermocouple Amplifiers

Key features

• Supply Current at 1.8V: 16 μA
• Operating Voltage Range: 1.6V to 5.5V
• Low TC Vos: ±0.5 μV/°C (max)
• Vos: ±150 μV (max)
• Input Bias Current: 20 fA
• PSRR: 120 dB
• CMRR: 97 dB
• Open Loop Gain: 120 dB
• Gain Bandwidth Product: 130 kHz
• Slew Rate: 58 V/ms
• Input Voltage Noise, f = 1 kHz: 60 nV/√Hz
• Temperature Range: -40°C to 125°C