P87LPC768 NXP Semiconductors, P87LPC768 Datasheet - Page 57

• Manufacturer Part Number: P87LPC768
• Description: The P87LPC768 is a 20-pin single-chip microcontroller designed forlow pin count applications demanding high-integration, low costsolutions over a wide range of performance requirements
• Manufacturer: NXP Semiconductors

1. This parameter is guaranteed by characterization, but not tested in production.
1. Conditions: V
2. The A/D is monotonic, there are no missing codes
3. The differential non-linearity (DL
4. The integral non-linearity (IL
5. The offset error (OS
6. The gain error (G
7. The absolute voltage error (A
8. This should be considered when both analog and digital signals are input simultaneously to A/D pins.
9. Changing the input voltage faster than this may cause erroneous readings.
10. A source impedance higher than this driving an A/D input may result in loss of precision and erroneous readings.
Philips Semiconductors
NOTE:
A/D CONVERTER DC ELECTRICAL CHARACTERISTICS
Vdd = 3.0V to 6.0V unless otherwise specified;
Tamb = 0 to +70 C for commercial, -40 C to +85 C for industrial, unless otherwise specified.
NOTES:
2002 Mar 12
SYMBOL
SYMBOL
Low power, low price, low pin count (20 pin) microcontroller
with 4 kB OTP 8-bit A/D, Pulse Width Modulator
CMRR
appropriate adjustment of gain and offset errors. See Figure 41.
the straight line which fits the ideal transfer curve. See Figure 41.
and the straight line which fits the ideal transfer curve. Gain error is constant at every point on the transfer curve. See Figure 41.
ADC and the ideal transfer curve.
SYMBOL
SYMBOL
V
V
I
CR
IL
M
R
IO
AV
OS
DL
C
IL
G
A
REF
CTC
C
-
-
IA
e
e
e
IN
t
e
e
Offset voltage comparator inputs
Common mode range comparator inputs
Common mode rejection ratio
Response time
Comparator enable to output valid
Input leakage current, comparator
SS
Analog input voltage
Resistance between V
Analog input capacitance
Differential non-linearity
Integral non-linearity
Offset error
Gain error
Absolute voltage error
Channel-to-channel matching
Crosstalk between inputs of port
Input slew rate
Input source impedance
= 0V; V
e
) is the relative difference in percent between the straight line fitting the actual transfer curve (after removing offset error),
e
) is the absolute difference between the straight line which fits the actual transfer curve (after removing gain error), and
DD
1,6
PARAMETER
PARAMETER
1,5
= 5.12V.
e
) is the peak difference between the center of the steps of the actual and the ideal transfer curve after
e
) is the maximum difference between the center of the steps of the actual transfer curve of the non-calibrated
e
) is the difference between the actual step width and the ideal step width. See Figure 41.
PARAMETER
PARAMETER
1,4
1,7
DD
1,2,3
1
and V
1
SS
8
0 < V
TEST CONDITIONS
TEST CONDITIONS
IN
< V
55
DD
TEST CONDITIONS
TEST CONDITIONS
A/D enabled
0 - 100kHz
MIN
0
V
SS
LIMITS
MIN
tbd
TYP
250
- 0.2
LIMITS
V
P87LPC768
V
DD
DD
MAX
MAX
–50
500
100
tbd
-60
10
15
10
10
10
–0.3
+ 0.2
1
1
2
1
1
1
Preliminary data
UNIT
UNIT
V/ms
UNIT
UNIT
LSB
LSB
LSB
LSB
LSB
mV
k
k
pF
dB
dB
ns
%
V
V
A
s