Outline
The MM1377 incorporates an op-amp with a dual low-input offset voltage and a shunt regulator; the MM1378 combines a quad low-input offset voltage op-amp and shunt regulator. They are appropriate for use in battery
chargers, switching power supplies and other voltage and current control applications. Op-amps with low input
offset voltage are particularly well-suited for handling current detection signals and other low-amplitude signals.
FEATUREs
Op-amp unit
1. Input offset voltage 0.2mV typ.
2. Input offset current 5nA typ.
3. Input bias current 30nA typ.
4. Common-mode input voltage range 0~VCC-1V
5. Power supply current 0.6mA typ.
Shunt regulator unit
1. Reference voltage 2.5V typ.
2. Reference voltage fluctuation (-20~+80°C) 5mV typ.
3. Minimum cathode current 0.4mA typ.
APPLICATIONs
1. Charger
2. Switching power supply
3. AC adapter