Features
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.
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
Application
Fixed Output Voltage Reference 2.5V
Battery Charger
0.4% and 1% Voltage Precision
Switch Mode Power Supply
Sink Current Capability : 1 to 100mA
Linear Regulator
Typical Output Impedance : 0.2W
TYPICAL APPLICATIONS
8
1
OP1
2
-
+
7
3
6
OP2
4
5
VRef
GM 431
www.gammamicro.com
GMA103A V0.1
+ -
1
MARKING INFORMATION & PIN CONFIGURATIONS (Top View)
SOP - 8
DIP - 8
Inverting Input 2
Non-Inverting Input 2
Output 2
Vcc+
8 7 6 5
8 7 6 5
GMA103A
AYWW
GMA103A
AYWW
1 2 3 4
Output 1
Inverting Input 1
Inverting Input 2
Non-Inverting Input 2
Output 2
Vcc+
1 2 3 4
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
Package
Shipping
GMA103AS8T
SOP-8
100 Units / Tube
GMA103AS8R
SOP-8
2,500 Units / Tape & Reel
GMA103AD8T
DIP-8
60 Units / Tube
GMA103A
* For detail Ordering Number identification, please see last page.
2
ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
Supply Voltage
VCC
36
V
Differential Input Voltage
Vid
36
V
Input Voltage
Vi
-0.3 to +36
V
Toper
-40 to +105
°C
TJ
150
°C
Parameter
Operating Temperature Range
Maximum Junction Temperature
ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Min.
Typ.
Max.
Unit
1.2
mA
Total Supply Current, Excluding Current in the Voltage Reference
ICC
0.7
2
GM 431
GMA103A
VCC+=5V, No load
Tmin. < Tamb < Tmax.
VCC+= 30V, No load
Tmin. < Tamb < Tmax
3
OPERATOR 1 (Independent op- amp)
VCC + = +5V, VCC = Ground, VO = 1.4V, Tamb = 25°C (unless otherwise specified)
Parameter
Symbol
Input Offset Voltage
Tamb= 25°C
Tmin. Tamb
Tmax.
Input Offset Current
Input Bias Current
Tmin. Tamb Tmax.
IIB
Large Signal Voltage Gain
VCC= 15V, RL= 2K, VO= 1.4V to 11.4V
Tmin. Tamb
Tmax.
Avd
GMA103A
Tmin.
Tamb
Typ.
Max.
Unit
0.5
3
5
mV
7
µV/ °C
2
30
50
nA
20
150
200
nA
DVIO
IIO
Input Common Mode Voltage Range
VCC= +30V (Note 1)
4
VIO
Input Offset Current
Tmin. Tamb Tmax.
Supply Voltage Rejection Ration
VCC= 5V to 30V
Min.
SVR
Vicm
Tmax.
Common Mode Rejection Ratio
Tmin. Tamb
Tmax.
CMR
Output Current Source
VCC= +15V, VO= 2V, Vid= +1V
Isource
50
25
100
65
100
V/ mV
dB
(VCC+) -1.5
(VCC+) -2
0
0
70
60
85
20
40
V
dB
mA
Short Circuit Ground
VCC= +15V
Io
Output Current Sink
Vid= -1V
VCC= +15V, VO= 2V
Isink
High Level Output Voltage
VCC+= 30V
Tamb= 25°C, RL= 10K
Tmin. Tamb
Tmax.
VOH
Low Level Output Voltage
RL= 10K
Tmin. Tamb
Tmax.
VOL
Slew Rate at Unity Gain
Vi= 0.5 to 3V, VCC= 15V
RL= 2K, CL= 100pF, unity gain
SR
0.2
0.4
V/ µs
Gain Bandwidth Product
VCC= 30V, RL= 2K,
CL= 100pF, f= 100kHz, VIN= 10mV
GBP
0.5
0.9
Mhz
Total Harmonic Distortion
f= 1kHz
AV= 20dB, RL= 2K, VCC= 30V
CL= 100pF, VO= 2Vpp
THD
0.02
%
40
10
20
27
27
28
5
60
mA
mA
V
20
20
mV
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 = 25°C (unless otherwise specified)
Input Offset Voltage
Tamb= 25°C
Tmin. Tamb
Tmax.
Input Offset Current
Symbol
Min.
VIO
Typ.
Max.
Unit
0.5
3
5
mV
7
µV/ °C
DVIO
Input Bias Current
Negative Input
IIB
Large Signal Voltage Gain
Vicm= 0V
VCC= 15V, RL= 2K
Avd
Supply Voltage Rejection Ration
Vicm= 0V
VCC= 5V to 30V
SVR
Output Current Source
VO= 2V, VCC= +15V, Vid= +1V
Isource
nA
20
100
V/ mV
65
100
dB
20
40
mA
Short Circuit Ground
VCC= +15V
Io
Output Current Sink
Vid= -1V
VCC= +15V, VO= 2V
Isink
High Level Output Voltage
VCC+= 30V
Tamb= 25°C, RL= 10K
Tmin. Tamb
Tmax.
VOH
Low Level Output Voltage
RL= 10K
Tmin. Tamb
Tmax.
VOL
Slew Rate at Unity Gain
Vi= 0.5 to 2V, VCC= 15V
RL= 2K, CL= 100pF, unity gain
SR
0.2
0.4
V/ µs
Gain Bandwidth Product
VCC= 30V, RL= 2K,
CL= 100pF, f= 100kHz, VIN= 10mV
GBP
0.5
0.9
Mhz
Total Harmonic Distortion
f= 1kHz
AV= 20dB, RL= 2K, VCC= 30V
CL= 100pF, VO= 2Vpp
THD
0.02
%
40
10
20
27
27
28
5
60
mA
mA
V
20
20
mV
GM 431
GMA103A
Parameter
5
VOLTAGE REFERENCE
Parameter
Cathode Current
Symbol
Value
Unit
IK
1 to 100
mA
Parameter
Reference Input Voltage
Tamb= 25°C
Tmin. Tamb
Tmax.
GMA103A
Min.
Typ.
Max.
Unit
Vref
2.49
2.48
2.5
2.51
2.52
V
5
24
Reference Input Voltage Deviation Over Temperature Range
VKA= Vref, IK= 10mA
Tmin. Tamb
Tmax.
DVref
Minimum Cathode Current for Regulation
VKA= Vref
Imin
0.5
1
mA
Dynamic Impedance (Note 1)
VKA= Vref, DIK= 1 to 100mA, f < 1kHz
| Z KA |
0.2
0.5
W
Note 1: The dynamic impedance is defined as | Z KA | = DV KA / DI K
6
Symbol
mV
SOP-8 PACKAGE OUTLINE DIMENSIONS
4.87
0°~5°
1.05 Ref
+0.08
-0.05
0.700 ± 0.15
Pad Layout
0.060
1.52
0.375 X 45°
0.16 ± 0.06
5.99 ± 0.15
1.61 ± 0.11
3.86
+0.10
-0.05
0.275
0.155
7.0
4.0
PIN INDENT
0.024
0.050
0.6
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
0.355 ± 0.020
9.017 ± 0.508
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
0.362 ± 0.005
9.195 ± 0.127
7
ORDERING NUMBER
GMA 103 A S8 R
Gamma Micro.
Shipping
T: Tube
R: Tape & Reel
Circuit Type
Package
S8: SOP-8
D8: DIP-8
GMA103A
A Version
8
9
GMA103A