MAX1367ECM Maxim Integrated, MAX1367ECM Datasheet - Page 18

• Manufacturer Part Number: MAX1367ECM
• Description: LED Display Drivers
• Manufacturer: Maxim Integrated

Specifications of MAX1367ECM

• Operating Supply Voltage: 2.7 V to 5.25 V

The transfer function for the MAX1367 with AIN+ - AIN-
< 0 and RANGE = GND is:
The transfer function for the MAX1365 with AIN+ - AIN-
≥ 0 and RANGE = DV
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
18
Figure 11. DAC Output Voltage vs. ADC Output Code
Figure 12. Output Current (4-20OUT) vs. ADC Output Code
(Current Offset Enabled)
( )
______________________________________________________________________________________
1. 25
4
0
FS = FULL SCALE
20
16
12
4
0
COUNT
FS = FULL SCALE
- FS
- FS
CURRENT
(EN_I = 1)
ENABLED
OFFSET
=
1 024
ADC OUTPUT CODE
.
DD
ADC OUTPUT CODE
is:



0
V
V
0
REF
AIN
+ −
+ −
UNIPOLAR :
BIPLOLAR :
UNIPOLAR :
BIPLOLAR :
V
V
AIN
REF
+ FS
+ FS
−
−
x
2000

 +

1
The transfer function for the MAX1365 with AIN+ - AIN-
< 0 and RANGE = DV
Figure 13. Output Current (4-20OUT) vs. ADC Output Code
(Current Offset Disabled)
Figure 14. 4-20OUT Output Current vs. V/I Converter Input
Voltage
( )
( )
6
5
COUNT
COUNT
16
8
0
FS = FULL SCALE
20
16
4
0
=
0
=
1 024
- FS
DISABLED
1 024
CURRENT
(EN_I = 0)
.
OFFSET
.



DD



V
ADC OUTPUT CODE
V
V
V/I CONVERTER INPUT ( V )
V
REF
AIN
REF
AIN
is:
OFFSET ENABLED :
OFFSET DISABLED :
+ −
+ −
+ −
+ −
0
V
V
V
V
AIN
REF
AIN
REF
−
UNIPOLAR :
BIPLOLAR :
−
−
−
x
1. 25
x
+ FS
20 000
20 000
,
,






x
x
10 1
10
+