Expand menu
Hello, Sign in
My Account
0
Cart
Home
Products
Sensors
Semiconductors
Passive Components
Connectors
Power
Electromechanical
Optoelectronics
Circuit Protection
Integrated Circuits - ICs
Main Products
Manufacturers
Blog
Services
About OMO
About Us
Contact Us
Check Stock
MAX1494CCJ+
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
P34-P34
MAX1492/MAX1494
3.5- and 4.5-Digit, Single-Chip ADCs
with LCD Drivers
______________________________________________________________________________________
31
0.1
µ
F
R
AIN-
AIN+
4–20mA
R = 100
Ω
for
±
2V RANGE
10
Ω
for
±
200mV RANGE
0.1
µ
F
MAX1492
MAX1494
±
1.8.8.8.8
Figure 23. 4–20mA Measurement
>4E1Fh
4E1Fh
0002h
0001h
0000h
FFFFh
FFFEh
FFFDh
B1E0h
<B1E0h
-2V
0
ANALOG INPUT VOLTAGE
+2V
ADC RESULT
LCD
1 - - - -
19,999
2
1
0
-0
-1
-2
-19,999
-1 - - - -
-100
µ
V
100
µ
V
Figure 24. MAX1494 Transfer Function, ±2V Range
>4E1Fh
4E1Fh
0002h
00001h
0000h
FFFFh
FFFEh
FFFDh
B1E0h
<B1E0h
-200mV
0
ANALOG INPUT VOLTAGE
+200mV
ADC RESULT
LCD
1 - - - -
19,999
2
1
0
-0
-1
-2
-19,999
-1 - - - -
-10
µ
V
10
µ
V
Figure 25. MAX1494 Transfer Function ±200mV Range
>7CFh
7CFh
002h
001h
000h
FFFh
FFEh
FFDh
830h
<830h
-200mV
0
ANALOG INPUT VOLTAGE
+200mV
ADC RESULT
LCD
1 - - -
1999
2
1
0
-0
-1
-2
-1999
-1 - - -
-100
µ
V
100
µ
V
Figure 26. MAX1492 Transfer Function ±200mV Range
MAX1494
(MAX1492)
0.1
µ
F
4.7
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
0.1
µ
F
4.7
µ
F
10
µ
F
L
ISO
R
HI
R
LOW
2.7V TO
5.25V
AIN+
AIN-
DVDD
A
VDD
LOWBA
TT
V
NEG
GND
REF-
REF+
V
DISP
(MAX1494 ONL
Y)
CLK
SCLK
DIN
DOUT
CS
EOC
BACKPLANE
CONNECTIONS
SEG1–SEG13
(SEG1–SEG10)
HOLD
PEAK
LOW BATTERY
V
IN
T
ypical Operating Circuit
MAX1492/MAX1494
3.5- and 4.5-Digit, Single-Chip ADCs
with LCD Drivers
32
______________________________________________________________________________________
>7CFh
7CFh
002h
001h
000h
FFFh
FFEh
FFDh
830h
<830h
-2V
0
ANALOG INPUT VOLTAGE
+2V
ADC RESULT
LCD
1 - - -
1999
2
1
0
-0
-1
-2
-1999
-1 - - -
-1mV
1mV
Figure 27. MAX1492 Transfer Function ±2V Range
MAX1492/MAX1494
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
V
NEG
BP1
BP2
BP3
SEG10
SEG9
SEG1
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
DOUT
SCLK
DIN
CS
EOC
LOWBATT
REF+
REF-
AIN-
AIN+
AVDD
GND
DVDD
CLK
PDIP/SSOP
TOP VIEW
MAX1492
MAX1494
LQFP
32
28
29
30
31
25
26
27
DVDD
CLK
V
NEG
V
DISP
GND
BP1
BP2
BP3
10
13
15
14
16
11
12
9
DIN
DOUT
SCLK
SEG2
SEG1
SEG4
SEG3
SEG5
17
18
19
20
21
22
23
SEG12
24
SEG13
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
2
3
4
5
6
7
8
CS
EOC
LOWBATT
REF+
REF-
AIN-
AIN+
1
AVDD
+
+
Pin Configurations
Chip Information
TRANSISTOR COUNT: 79,435
PROCESS: BiCMOS
3.5- and 4.5-Digit, Single-Chip ADCs
with LCD Drivers
______________________________________________________________________________________
33
Package
Infor
mation
For the latest package outline information and land patterns, go
to
www.maxim-ic.com/packages
. Note that a “+”, “#”, or “-” in
the package code indicates RoHS status only. Package draw-
ings may show a different suffix character, but the drawing per-
tains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
28 SSOP
A28+1
21-0056
90-0095
28 PDIP
N28+2
21-0043
—
32 LQFP
C32+2
21-0054
90-0111
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P33
P34-P34
MAX1494CCJ+
Mfr. #:
Buy MAX1494CCJ+
Manufacturer:
Maxim Integrated
Description:
LCD Drivers 4.5 Digit ADC w/LCD Drivers
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
T/T
Paypal
Visa
MoneyGram
Western
Union
Products related to this Datasheet
MAX1494CCJ+
MAX1492CNI+
MAX1492CAI+
MAX1492CAI+T
