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 : 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
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 = 25°C (unless otherwise specified)
Parameter
Input Offset Voltage Tamb= 25°C 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= 25°C, 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 µV/ °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/ µs
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. B ut 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) Parameter
Input Offset Voltage Tamb= 25°C 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= 25°C, 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 µV/ °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/ µs
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= 25°C 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 | = D V KA / D I 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
P ad 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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