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Operational amplifier IC

MM1837

Outline

This IC comes with dual operational amplifiers and shunt regulator (2.5V) function.
It can be used for controlling the secondary side of AC adaptor.
It can also be used in a part of application circuit of our IC MM3460 for LED light.

Applications

1. Li-ion battery charger
2. AC adaptor
3. Reference voltage source

Features

Op-amp unit
1. Input offset voltage Typ.0.2mV, Max0.9mV
2. Input bias current 30nA
3. Power supply current 0.6mA
4. Voltage gain 100dB
5. Common-mode signal rejection ratio 85dB
6. Power supply voltage rejection ratio 100dB
7. Output outflow current 35mA
8. Output inflow current 20mA
Shunt regulator unit
1. Reference voltage 2.5V
2. Minimum cathode current 0.4mA
3. Dynamic inpedance 0.4Ω

仕様

Power supply voltage
lower limit
[V]
Power supply voltage
upper limit
[V]
Input voltage range
lower limit
[V]
Input voltage range
upper limit
[V]
Input offset voltage
Typ.
[mV]
Gain
Typ.
[dB]
2.0 20.0 0.0 VCC-1.0 ±0.2 100
Power supply voltage
lower limit
[V]
Power supply voltage
upper limit
[V]
Input voltage range
lower limit
[V]
Input voltage range
upper limit
[V]
Input offset voltage
Typ.
[mV]
Gain
Typ.
[dB]
2.0 20.0 0.0 VCC-1.0 ±0.2 100

Block Diagram

Package Image

Package

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