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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 input 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.
Features
Low Input Offset Voltage : 0.5mV typ. Low Supply Current : 350A/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
Application
Battery Charger Switch Mode Power Supply Linear Regulator
TYPICAL APPLICATIONS
1 OP1 2 3
++
8 7 6 OP2
VRef
www.gammamicro.com
GMA103A V0.1
1
4
5
GM 431
MARKING INFORMATION & PIN CONFIGURATIONS (Top View)
SOP - 8
Output 2 Vcc+
8765
Inverting Input 2 Non-Inverting Input 2
DIP - 8
Output 2 Vcc+
8765
GMA103A AYWW Inverting Input 2 Non-Inverting Input 2
GMA103A AYWW
1234
Output 1 Inverting Input 1
1234
VccNon-Inverting Input 1
Output 1 Inverting Input 1
VccNon-Inverting Input 1
A = Assembly Location Y = Year W W = Weekly
ORDERING INFORMATION
Ordering Number
GMA103AS8T GMA103AS8R GMA103AD8T
Package
SOP-8 SOP-8 DIP-8
Shipping
100 Units / Tube 2,500 Units / Tape & Reel 60 Units / Tube
* For detail Ordering Number identification, please see last page.
GMA103A
2
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply Voltage Differential Input Voltage Input Voltage Operating Temperature Range Maximum Junction Temperature
Symbol
VCC Vid Vi Toper TJ
Value
36 36 -0.3 to +36 -40 to +105 150
Unit
V V V C C
ELECTRICAL CHARACTERISTICS
Parameter
Total Supply Current, Excluding Current in the Voltage Reference VCC+=5V, No load Tmin. < Tamb < Tmax. VCC+= 30V, No load Tmin. < Tamb < Tmax ICC 0.7 1.2 2 mA
Symbol
Min.
Typ.
Max.
Unit
GMA103A
3
GM 431
OPERATOR 1 (Independent op- amp)
VCC + = +5V, VCC = Ground, VO = 1.4V, T amb = 25C (unless otherwise specified)
Parameter
Input Offset Voltage Tamb= 25C Tmin. Tamb Tmax. Input Offset Current Input Offset Current Tmin. Tamb Tmax. Input Bias Current Tmin. Tamb Tmax. Large Signal Voltage Gain VCC= 15V, RL= 2K, VO= 1.4V to 11.4V Tmin. Tamb Tmax. Supply Voltage Rejection Ration VCC= 5V to 30V Input Common Mode Voltage Range VCC= +30V (Note 1) Tmin. Tamb Tmax. Common Mode Rejection Ratio Tmin. Tamb Tmax. Output Current Source VCC= +15V, VO= 2V, Vid= +1V Short Circuit Ground VCC= +15V Output Current Sink Vid= -1V VCC= +15V, VO= 2V High Level Output Voltage VCC+= 30V Tamb= 25C, RL= 10K Tmin. Tamb Tmax. Low Level Output Voltage RL= 10K Tmin. Tamb Tmax. Slew Rate at Unity Gain Vi= 0.5 to 3V, VCC= 15V RL= 2K, CL= 100pF, unity gain Gain Bandwidth Product VCC= 30V, RL= 2K, CL= 100pF, f= 100kHz, VIN= 10mV Total Harmonic Distortion f= 1kHz AV= 20dB, RL= 2K, VCC= 30V CL= 100pF, VO= 2Vpp
Symbol
VIO DVIO IIO IIB
Min.
Typ.
0.5
Max.
3 5 7
Unit
mV V/ C nA nA
2 20
30 50 150 200
Avd
50 25
100
V/ mV
SVR
65
100 (VCC+) -1.5 (VCC+) -2 85
dB
Vicm
0 0 70 60
V
CMR Isource Io
dB mA mA
20
40 40 60
Isink
10
20
mA
VOH
27 27
28
V
VOL
5
20 20
mV
SR
0.2
0.4
V/ s
GBP
0.5
0.9
Mhz
THD
0.02
%
GMA103A
4
Note 1: The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC + - 1.5V. But either of both inputs can go to +36V without damage.
OPERATOR 2 (op-amp with non-inverting input connected to the internal Vref)
VCC + = +5V, VCC = Ground, Tamb = 25C (unless otherwise specified) Parameter
Input Offset Voltage Tamb= 25C Tmin. Tamb Tmax. Input Offset Current Input Bias Current Negative Input Large Signal Voltage Gain Vicm= 0V VCC= 15V, RL= 2K Supply Voltage Rejection Ration Vicm= 0V VCC= 5V to 30V Output Current Source VO= 2V, VCC= +15V, Vid= +1V Short Circuit Ground VCC= +15V Output Current Sink Vid= -1V VCC= +15V, VO= 2V High Level Output Voltage VCC+= 30V Tamb= 25C, RL= 10K Tmin. Tamb Tmax. Low Level Output Voltage RL= 10K Tmin. Tamb Tmax. Slew Rate at Unity Gain Vi= 0.5 to 2V, VCC= 15V RL= 2K, CL= 100pF, unity gain Gain Bandwidth Product VCC= 30V, RL= 2K, CL= 100pF, f= 100kHz, VIN= 10mV Total Harmonic Distortion f= 1kHz AV= 20dB, RL= 2K, VCC= 30V CL= 100pF, VO= 2Vpp
Symbol
VIO DVIO IIB
Min.
Typ.
0.5
Max.
3 5 7
Unit
mV V/ C nA
20 100
Avd
V/ mV
SVR
65
100
dB
Isource Io
20
40 40 60
mA mA
Isink
10
20
mA
VOH
27 27
28
V
VOL
5
20 20
mV
SR
0.2
0.4
V/ s
GBP
0.5
0.9
Mhz
THD
0.02
%
GMA103A
5
GM 431
VOLTAGE REFERENCE
Parameter
Cathode Current
Symbol
IK
Value
1 to 100
Unit
mA
Parameter
Reference Input Voltage Tamb= 25C Tmin. Tamb Tmax. 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
Note 1: The dynamic impedance is defined as | Z KA | = DV KA / DI K
Symbol
Vref
Min.
2.49 2.48
Typ.
2.5
Max.
2.51 2.52
Unit
V
DVref 5 Imin
| Z KA |
mV 24 1 mA
0.5
0.2
0.5
W
GMA103A
6
SOP-8 PACKAGE OUTLINE DIMENSIONS
4.87
+0.08 -0.05
0~5 0.700 0.15
1.05 Ref
Pad Layout
0.060 1.52
0.375 X 45 0.16 0.06 5.99 0.15 1.61 0.11
+0.10 -0.05
0.275 7.0
0.155 4.0
3.86
PIN INDENT
0.024 0.6
0.050 1.270
1.27 BAIC
Inches ( mm )
1.61 0.11
Unit: mm
DIP-8 PACKAGE OUTLINE DIMENSIONS
0.252 0.005 6.401 0.127
0.300 0.010 7.62 0.254
0.010 NOM 0.254 NOM 0.362 0.005 9.195 0.127
0.130 0.005 3.302 0.127 0.170 MAX 0.015 MIN 4.318 MAX
0.381 MIN
0.130 0.010 3.302 0.254 0.018 TYP 0.457 TYP 0.060 TYP 1.524 TYP 0.100 TYP 2.540 TYP
Inches ( mm )
GMA103A
7
0.355 0.020 9.017 0.508
ORDERING NUMBER
GMA 103 A S8 R
Gamma Micro. Circuit Type Shipping T: Tube R: Tape & Reel Package S8: SOP-8 D8: DIP-8
A Version
GMA103A
8
9
GMA103A

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