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ML2288 Просмотр технического описания (PDF) - Micro Linear Corporation

Номер в каталогеML2288 Micro-Linear
Micro Linear Corporation Micro-Linear
Компоненты ОписаниеSerial I/O 8-Bit A/D Converters with Multiplexer Options
ML2288 Datasheet PDF : 26 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
APPLICATIONS (Continued)
ML2281, ML2282, ML2284, ML2288
VCC
(5VDC)
+
VIN
VIN (+)
VCC
ML2281
+
10µF
10k
FS
ADJ.
1.2k
VIN (–)
VREF
SETS ZERO
CODE VOLTAGE
330
2.7k
1k
2VDC
ZERO ADJ.
1k
3V
+
1µF
SET
VOLTAGE SPAN
10V
STRAIN GAUGE
LOAD CELL
300/30mV FS
330
6.8k
5.1V
1k
GAIN
2.7k
10k
+
VCC
VREF
CLK
DUAL
1M
ML2281 CS
+
–IN
DUAL
+IN
DO
1M20k
10V
10k
OFFSET
20k
• USES ONE MORE WIRE THAN LOAD CELL ITSELF
• TWO MINI-DIPs COULD BE MOUNTED INSIDE LOAD CELL
FOR DIGITAL OUTPUT TRANSDUCER
• ELECTRONIC OFFSET AND GAIN TRIMS RELAX MECHANICAL
SPECS FOR GAUGE FACTOR AND OFFSET
• LOW LEVEL CELL OUTPUT IS CONVERTED IMMEDIATELY FOR
HIGH NOISE IMMUNITY
Zero-Shift and Span Adjust: 2V - VIN - 5V
Digital Load Cell
tREF
+ TYPE J
T1
+
1k
88.2k
CH0
VCC
VCC
2k
22k
1k910
TL064
+
ML2288
CH7
COM
VREF
SERIAL I/O
tREF
+ TYPE J
T8
+
1k
88.2k
LM335
tREF
TL064
TL064
820
20k
1k3kVCC
LM385
USES THE PSEUDO-DIFFERENTIAL MODE TO KEEP THE
DIFFERENTIAL INPUTS CONSTANT WITH CHANGES IN REFERENCE TEMPERATURE (TREF)
Convert 8 Thermocouples with only One Cold-Junction Compensator
19
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