83C196KB Intel Corporation, 83C196KB Datasheet - Page 17

• Manufacturer Part Number: 83C196KB
• Description: COMMERCIAL/EXPRESS CHMOS MICROCONTROLLER
• Manufacturer: Intel Corporation

10-BIT A D CHARACTERISTICS
At a clock speed of 6 MHz or less the clock prescal-
er should be disabled This is accomplished by set-
ting IOC2 4
At higher frequencies (greater than 6 MHz) the clock
prescaler should be enabled (IOC2 4
the comparator to settle
The table below shows two different clock speeds
and their corresponding A D conversion and sample
times
A D CONVERTER SPECIFICATIONS
NOTES
1 Typical values are expected for most devices at 25 C
2 DC to 100 KHz
3 Multiplexer Break-Before-Make Guaranteed
4 Resistance from device pin through internal MUX to sample capacitor
An ‘‘LSB’’ as used here has a value of approximately 5 mV
IOC2 4
IOC2 4
Resolution
Absolute Error
Full Scale Error
Zero Offset Error
Non-Linearity Error
Differential Non-Linearity Error
Channel-to-Channel Matching
Repeatability
Temperature Coefficients
Off Isolation
Feedthrough
V
Input Series Resistance
DC Input Leakage
Sampling Capacitor
CC
Offset
Full Scale
Differential Non-Linearity
A D Clock
Prescaler
Power Supply Rejection
e
e
0
1
e
Parameter
1
ON
OFF
Clock Speed
(MHz)
16
6
Example Sample and Conversion Times
e
0 25
0 25
Typical(1)
1 5
g
0) to allow
0 009
0 009
0 009
g
b
b
0 25
g
g
g
3
Sample Time
0 1
60
60
0 50
0 50
2 5
(States)
15
8
Minimum
State times are calculated as follows
The converter is ratiometric so the absolute accura-
cy is directly dependent on the accuracy and stability
of V
both the resistor ladder and the digital section of the
converter
See the MCS-96 A D Converter Quick Reference
for definition of A D terms
l
1024
b
750
10
0
0
b
0
0
60
REF
Sample Time
1
at Clock
Speed
1 875
2 667
( s)
V
REF
Maximum
must be close to V
1024
g
1 2K
state time
g
g
a
g
10
3 0
3
3
2
1
Conversion
8XC196KB 8XC196KB16
(States)
156 5
Time
89 5
e
XTAL1
LSB C
LSB C
LSB C
Units
Levels
LSBs
LSBs
LSBs
LSBs
LSBs
LSBs
LSBs
2
Bits
dB
dB
dB
pF
CC
A
since it supplies
Clock Speed
Conversion
Time at
19 6
29 8
( s)
Notes
2 3
2
2
4
17