MM1089

MITSUMI Sensor Amplifier MM1089 Sensor Amplifier Monolithic IC MM1089 Outline This IC is an amplifier with a high-impedance differential input, which can be used in high-CMR instrumentation. Particularly when amplifying signals from a high-impedance or high-bias signal source, often signals are buried in noise, making amplification difficult. This IC amplifies only the signal, and the noise is suppressed rather than amplified, making it effective for use where noise is prominent or with high-impedance signal sources. Features 1. Battery charge/discharge current detection (for laptops, word processors, etc) 2. Signal amplifiers for magnetic sensors, pressure sensors, strain gauges 3. Instrumentation amps 4. Broad input range 5. Two internal channels 80dB min., 100dB typ. Except 10MΩ 3~ 100 -0.3V~VCC+0.3V Package SOP-18A (MM1089XF) Applications 1 Detection of battery charge/discharge current (for notebook computers, word processors etc) 2 Amplification of magnetic sensor, pressure sensor, strain gauge, other signals 3 Instrumentation amp MITSUMI Sensor Amplifier MM1089 Pin Assignment Input range switching 1 +IN1 + Rg1 -IN1 Rs1 OUT1 O.COM1 GND 1 2 3 4 A1 5 6 7 8 9 A2 14 13 12 11 10 18 17 16 15 VCC Input range switching 2 +IN2 + Rg2 -IN2 Rs2 OUT2 O.COM2 O.COM2 Pin no. Pin name Input range switching 1 Function AMP1 Input voltage range switching Hi : 1.8V~VCC+0.3V LO : -0.3V~VCC-1.8V AMP1 +Input AMP1 Resistance to set the Rg gain AMP1 Resistance to set the Rg gain AMP1...