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GMA103A Schematic ( PDF Datasheet ) - Gamma Microelectronics

Teilenummer GMA103A
Beschreibung DUAL OPERATIONAL AMPLIFIER AND VOLTAGE REFERENCE
Hersteller Gamma Microelectronics
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Gesamt 9 Seiten
GMA103A Datasheet, Funktion
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Description
GMA103A is a monolithic IC that includes one independent
op-amp and another op-amp, for which the non inverting in-
put is wired to a 2.5V fixed Voltage Reference.
This device is offering space and cost saving in many
applications like power supply management or data
acquisition systems.
Application
Battery Charger
Switch Mode Power Supply
Linear Regulator
Features
Low Input Offset Voltage : 0.5mV typ.
Low Supply Current : 350µA/op.
(@ VCC = 5V)
Medium Bandwidth (unity gain) : 0.9MHz
Large Output Voltage Swing : 0V to (VCC - 1.5V)
Input Common Mode Voltage Range Includes
Ground
Wide Power Supply Range : 3 to 32V ±1.5 to
±16V
Fixed Output Voltage Reference 2.5V
0.4% and 1% Voltage Precision
Sink Current Capability : 1 to 100mA
Typical Output Impedance : 0.2W
TYPICAL APPLICATIONS
1
OP1
2 -+
3
+-
OP2
4
VRef
8
7
6
5
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GMA103A Datasheet, Funktion
VOLTAGE REFERENCE
Parameter
Cathode Current
Symbol
IK
Value
1 to 100
Unit
mA
Parameter
Symbol
Reference Input Voltage
Tamb= 25°C
Tmin. Tamb Tmax.
Vref
Reference Input Voltage Deviation Over Temperature Range
VKA= Vref, IK= 10mA
Tmin. Tamb Tmax.
Minimum Cathode Current for Regulation
VKA= Vref
Dynamic Impedance (Note 1)
VKA= Vref, DIK= 1 to 100mA, f < 1kHz
DVref
Imin
|ZKA|
Note 1: The dynamic impedance is defined as |ZKA| = DVKA/ DIK
Min.
2.49
2.48
Typ .
2.5
5
0.5
0.2
Max. Unit
2.51
2.52
V
mV
24
1 mA
0.5 W
6

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