AN87C196KDF8 Datasheet, PDF (19/21 Pages) Intel Corporation – 16-BIT HIGH PERFORMANCE CHMOS MICROCONTROLLER

AUTOMOTIVE 87C196KD
10-BIT A D CHARACTERISTICS
The speed of the A D converter in the 10-bit mode
can be adjusted by setting a clock prescaler on or
off At high frequencies more time is needed for the
comparator to settle The maximum frequency with
the clock prescaler disabled is 6 MHz The conver-
sion times with the prescaler turned on or off is
shown in the table below The AD TIME register
has not been characterized for the 10-bit mode
The converter is ratiometric so the absolute accura-
cy is dependent on the accuracy and stability
Clock Prescaler On
IOC2 4 ^e 0
156 5 States
19 5 ms 16 MHz
of V_REF V_REF must be close to V_CC since it supplies
both the resistor ladder and the digital section of the
converter
A D CONVERTER SPECIFICATIONS
The specifications given below assume adherence
to the Operating Conditions section of this data-
sheet Testing is performed with V_REF ^e 5 12V
Clock Prescaler Off
IOC2 4 ^e 1
89 5 States
29 8 ms 6 MHz
Parameter
Resolution
Absolute Error
Full Scale Error
Zero Offset Error
Non-Linearity
Differential Non-Linearity Error
Channel-to-Channel Matching
Repeatability
Temperature Coefficients
Offset
Full Scale
Differential Non-Linearity
Off Isolation
Feedthrough
V_CC Power Supply Rejection
Input Resistance
DC Input Leakage
Sample Time Prescaler On
Prescaler Off
Input Capacitance
Typical ⁽³⁾
g3
g3
g0 25
0 009
0 009
0 009
b₆₀
b₆₀
16
8
3
Minimum
1024
10
0
0
lb₁
0
b₆₀
750
0
NOTES
An ‘‘LSB’’ as used here has a value of approximately 5 mV
1 DC to 100 KHz
2 Multiplexer Break-Before-Make Guaranteed
3 Typical values are expected for most devices at 25 C
Maximum
1024
10
g4
g4
a₂
g1
1 2K
30
Units
Levels
Bits
LSBs
LSBs
LSBs
LSBs
LSBs
LSBs
LSBs
LSB C
LSB C
LSB C
dB
dB
dB
X
mA
States
States
pF
Notes
12
1
1
19