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CYRUSTEK CO.
ES5108 3 1/2 Digit
ADC with serial output
continued from previous page
Pin No.
Symbol
Type
Description
38
BZINM
I
Buzzer control master pin.
39
EOC
O
End of conversion indicator.
40
V-
P
Negative supply voltage. Connecting to battery negative terminal.
41
VINT
-
Integrator output.
42
VBUFF
-
Integration register connection.
43
CAZ
-
Auto-zero capacitor connection.
44
VIN-
I
Analog low input signal.
45
VIN+
I
Analog high input signal.
46
ANA-COM
O
Set the common-mode voltage for the system.
47
CREF-
-
Negative capacitor connection for on-chip A/D converter.
48
CREF+
-
Positive capacitor connection for on-chip A/D converter.
Note:
1. -/MHz for ES5108S
Absolute Maximum Ratings
Characteristic
Rating
Supply Voltage (V+ to V-)
12V
Analog Input Voltage (either input)
V+ to V-
Reference Input Voltage (either input)
V+ to V-
Clock Input
DGND to V+
Power Dissipation(plastic package)
800mW
Operating Temperature
C to
C
Storage Temperature
C to
C
Lead Temperature (soldering, 10sec)
C
Electrical Characteristics
Parameter
Symbol
Test Condition
Min.
Typ.
Max.
Units
DC Characteristics Zero In-
put Reading
–
, full-
scale=200.0mV
-000.0
+000.0
Digital Reading
Ratiometric Reading
–
=
,
=100mV
999
999/1000
1000
Digital Reading
Linearity (Max.
deviation
from best straight line fit)
–
full-scale=200mV or
full-scale=2.000V
-1
1
Counts
Roll-over Error
–
=
200.0mV
-1
+1
Counts
Common Mode Rejection
Ratio
–
= 1V,
=0V
Full-Scale=200.0mV
–
50
–
V/V
Low battery flag
–
V+ to V-
6.6
6.9
7.2
V
Noise
–
, full-
scale=200.0mV
–
15
–
Vp-p
Input Leakage Current
–
–
1
10
pA
Zero Reading Drift
–
,
C
C
–
0.2
1
V/ C
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6
July 4, 2002