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MM1089 Schematic ( PDF Datasheet ) - Mitsumi Electric

Teilenummer MM1089
Beschreibung Sensor Amplifier
Hersteller Mitsumi Electric
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Gesamt 9 Seiten
MM1089 Datasheet, Funktion
MITSUMI
Sensor Amplifier
Monolithic IC MM1089
Sensor Amplifier 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 10M
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






MM1089 Datasheet, Funktion
MITSUMI
Sensor Amplifier MM1089
Application Circuits
1. Charger for NiCad batteries (charging current, discharge current detection circuit)
Note : For the Rg and Rs resistances, see "Gain Settings"
2. Charger for NiCad batteries (charging current, discharge current detection circuit)
Note : For the Rg and Rs resistances, see "Gain Settings"
3. Sensor signal amplification
Note : For the Rg and Rs resistances, see "Gain Settings"

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