GMS81C5108
JUNE 2001 Ver 1.0
13
7.4 LCD Characteristics
(TA=-20~70
°
C, V
DD
=AV
DD
=2~4V, V
SS
=AV
SS
=0V)
7.5 A/D Converter Characteristics
(TA=25
°
C, V
DD
=3V, AV
DD
=3.072V, V
SS
=AV
SS
=0V)
Parameter
Symbol
Condition
Specifications
Unit
Min.
Typ.
Max.
VLCDC Output Voltage
VLCDC
V
DD
=3V, TA=25
°
C,
R1=1M
Ω,
R2
=
300k
Ω
0.7
0.9
1.1
V
LCD Reference
Output Voltage
VCL0
External Variable Resistance
(0 to 1M
Ω)
0.9
-
2.0
Double Output Voltage
VCL1
C1~C4=0.47uF
1.9VCL0
2.0VCL0
-
V
Triple Output Voltage
VCL2
C1~C4=0.47uF
2.85VCL0
3.0VCL0
-
LCD Common
Output Current
I
COM
Output Voltage Deviation=0.2V
30
-
-
µ
A
LCD Segment
Output Current
I
SEG
Output Voltage Deviation=0.2V
5
-
−
Parameter
Symbol
Condition
Specifications
Unit
Min.
Typ.
Max.
Analog Power Supply Input Voltage Range
AV
DD
-
AV
SS
-
AV
DD
V
Analog Input Voltage Range
V
AN
-
AV
SS
-0.3
-
AV
DD
+0.3
Current Following Between AV
DD
and AV
SS
IAV
DD
-
-
-
200
µ
A
Overall Accuracy
CAIN
-
-
±
1.0
±
2.0
LSB
Non Linearity Error
NNLE
-
-
±
1.0
±
2.0
Differential Non Linearity Error
NDNLE
-
-
±
1.0
±
2.0
Zero Offset Error
NZOE
-
-
±
0.5
±
1.5
Full Scale Error
NFSE
-
-
±
0.25
±
0.5
Gain Error
NGE
-
-
±
1.0
±
1.5
Conversion Time
TCONV
f
MAIN
=4MHz
-
-
30
µ
S
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