80C196MH Datasheet, PDF (36/41 Pages) Intel Corporation – 8XC196MH INDUSTRIAL MOTOR CONTROL CHMOS MICROCONTROLLER

8XC196MH INDUSTRIAL MOTOR CONTROL CHMOS MICROCONTROLLER
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Table 17. 10-bit Mode A/D Characteristics Over Specified Operating Conditions (1) (Continued)
Parameter
Typical (3)
Min
Max
Units (2) Notes
Temperature Coefficients:
Offset
Full-scale
Differential Nonlinearity
0.009
0.009
0.009
LSB/C
LSB/C
LSB/C
Off-isolation
– 60
dB
4, 5
Feedthrough
– 60
dB
4
V_CC Power Supply Rejection
– 60
dB
6
Input Series Resistance
750
1.2K
Ω
4
Voltage on Analog Input Pin
Sampling Capacitor
ANGND – 0.5
V_REF + 0.5
V
7, 8
3
pF
DC Input Leakage
± 1.0
0
±3
µA
NOTES:
1. Testing is performed with V_REF = 5.12 V and F_OSC = 16 MHz.
2. An LSB, as used here, has a value of approximately 5 mV.
3. Typical values are based on a limited number of samples and are not guaranteed. Operating conditions
for typical values are room temperature and V_REF = V_CC = 5.5 V.
4. DC to 100 KHz.
5. Multiplexer break-before-make guaranteed.
6. Resistance from device pin, through internal multiplexer, to sample capacitor.
7. These values may be exceeded if the pin current is limited to ± 2mA.
8. Applying voltage beyond these specifications will degrade the accuracy of other channels being con-
verted.
9. All conversions were performed with processor in idle mode.
Table 18. 8-bit A/D Operating Conditions (1)
Symbol
Description
Min
Max
Units
Notes
T_A
Ambient Temperature
– 40
+ 85
°C
v_CC
Digital Supply Voltage
4.50
5.50
V
v_REF
Analog Supply Voltage
4.50
5.50
V
2
T_SAM
Sample Time
1.0
µs
3
T_CONV
Conversion Time
7.0
20.0
µs
3
F_OSC
Oscillator Frequency
8
16
MHz
NOTES:
1. ANGND and V_SS should nominally be at the same potential.
2. V_REF must not exceed V_CC by more than + 0.5 V because V_REF supplies both the resistor ladder and the
analog portion of the converter and input port pins.
3. Program the AD_TIME register to meet the T_SAM and T_CONV specifications.
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