81C51SL-AH View Datasheet(PDF) - Intel
Part Name
Description
Manufacturer
81C51SL-AH Datasheet PDF : 23 Pages
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8XC51SL LOW VOLTAGE 8XC51SL
A D CHARACTERISTICS
The 51SL includes a four-channel 8-bit A D con-
verter This A D with eight bits of accuracy uses
successive approximation with a switch capacitor
comparator It is designed to be used for sampling
static analog signals (i e ideally suited for power
management tasks such as battery voltage monitor-
ing etc ) The nominal conversion rate is 20 ms at
16 MHz The analog high and low voltage refer-
ences are connected to AVREF and AVGND re-
spectively The four input channels AIN0– 3 are
connected from the package pins unbuffered to an
analog multiplexer (on-chip) The absolute conver-
sion accuracy is dependent upon the accuracy of
AVREF The specifications given assume adherence
to the operating conditions section of this data sheet
Testing is done at AVREF e 5 12V and VCC e 5 0V
for the 8XC51SL and at AVREF e 3 2V and VCC e
3 3V for the Low Voltage 8XC51SL
OPERATING CONDITIONS
VCC
8XC51SL
Low Voltage 8XC51SL
AVREF
8XC51SL
Low Voltage 8XC51SL
VSS AVSS
AIN0 – 3
TA
FOSC
4 5V to 5 5V
3 0V to 3 6V
4 5V to 5 5V
3 0V to 3 6V
0V
AVSS to AVREF
0 C to a70 C Ambient
2 MHz to 16 MHz
A D CONVERTER SPECIFICATIONS (Over Operating Conditions)
Parameter
Min
Typ
Resolution
255
8
Absolute Error
0
Full Scale Error
g1
Zero Offset Error
g1
Non-Linearity Error
0
Differential Non-Linearity Error
0
Channel to Channel Matching
0
Repeatability
g0 25
Temperature Coefficients
Offset
Full Scale
Differential Non-Linearity
0 003
0 003
0 003
Off Isolation
b60
Feedthrough
b60
VCC Power Supply Rejection
Input Resistance
b60
750
Input Capacitance
3
DC Input Leakage
0
Max
256
8
g1
g1
g1
g1
1 2K
30
Units
Levels
Bits
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB C
LSB C
LSB C
dB
dB
dB
X
pF
mA
21
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