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TC818 Datasheet(PDF) 14 Page - Microchip Technology

Part # TC818
Description  Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display
PDF  24 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC818 Datasheet(HTML) 14 Page - Microchip Technology

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TC818A
DS21475B-page 14
© 2002 Microchip Technology Inc.
FIGURE 3-8:
AUTO-RANGE
OPERATION: VOLTAGE
MEASUREMENT
FIGURE 3-9:
AUTO-RANGE
OPERATION: RESISTANCE
MEASUREMENT
N = 0 If DC
N = 1 If AC
No
Yes
Kth
Conversion
VX = (1/10N) VIN
N = N –1
N = 0; 200mV Full Scale Range
N = 1; 2V Full Scale Range
N = NK
(Remain in Range
Selected during the Kth
Conversion)
N = N +1
K = K +1
VX < 180
?
Display
"1" 000
Flash MSD
Start: Power-on, Function or Measurement Option Change
Yes
N = 0 If DC
N = 1 If AC
?
Display
Voltage (V)X
Yes
No
?
Yes
Yes
?
No
N = 4
?
Display
"1" XXX
Flash MSD
Over Range
Activate
Buzzer
Extended
Resolution
No
VX > 2000
VX > 3000
N = 0 If
Ω
N = 1 If LO
Ω
No
Yes
Kth
Conversion
RX =
RIN
N = N –1
N = 0; 200
Ω Full Scale Range
N = 1; 2k
Ω Full Scale Range
N = N +1
K = K +1
RX < 19
?
Yes
N = 0 If
Ω
N = 1 If LO
Ω
Extended Resolution
No
?
?
N = 4
?
No
Yes
Yes
?
Yes
Activate
Buzzer
Continuous
4kHz Signal
Continuity
Indicator
No
Yes
Display
Resistance
No
?
RX < 180
RX > 2000
RX > 3000
(Remain in Range
Selected during the
Kth Conversion)
Over
Range
Display
"1" 000
Flash MSD
Display
"1" XXX
Flash MSD
Start: Power-on, Function or Measurement Option Change
1
10N



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