SP8538 Просмотр технического описания (PDF) - Signal Processing Technologies
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SP8538 Datasheet PDF : 12 Pages
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ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation
sections of the specifications below is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect
reliability.
(TA=+25˚C unless otherwise noted) .....................................................
VCC to GND ................................................................................. 7.0V
Vin to GND .............................................................. -0.3 to VCC +0.3V
Digital input to GND ................................................ -0.3 to VCC +0.3V
Digital output to GND .............................................. -0.3 to VCC +0.3V
Operating Temperature Range
Commercial (J, K Version) ........................................... 0˚C to 70˚C
Industrial (A, B Version) .......................................... -40˚C to +85˚C
Lead Temperature (Solder 10Sec) ............................................ +300˚C
Storage Temperature .................................................. -65˚C to +150˚C
Power Dissipation to 70˚C ........................................................ 500mW
SPECIFICATIONS
Unless otherwise noted the following specifications apply for VCC=5V or 3.3V with limits applicable for Tmin to Tmax. Typical applies for Ta=25˚C.
VCC=5.0V
VCC=3.3V
PARAMETERS
MIN. TYP. MAX. MIN. TYP. MAX. UNITS CONDITIONS
DC ACCURACY
Resolution
Integral Linearity
J,A
K,B
12
+0.6 +2.0
+0.6 +1.0
12
Bits
+0.6 +2.0 LSB
+0.6 +1.0 LSB
Differential Linearity Error
J,A
K,B
+0.75 +2.0
+0.75 +1.0
+0.75 +2.0 LSB
+0.75 +1.0 LSB
No Missing Codes
Gain Error
J,A
K,B
+2.0 +10
+2.0 +8
+2.0 +10 LSB
+2.0 +8 LSB
Offset Error
J,A
K,B
+1.5 +5
+1.5 +3
+3.0 +8 LSB
+3.0 +5 LSB
ANALOG INPUT
Input Signal FS Range
Input Impedance
On Channel
Off Channel
Input Bias Current
Analog Input Range
MULTIPLEXER
Crosstalk (fD = Nyquist)
Feedthrough (fD = Nyquist)
CONVERSION SPEED
Sample Time
Conversion Time
Complete Cycle
Clock Period
Clock High Time
Clock Low Time
0
VCC 0
VCC
20
20
pF
100
100
MΩ
3
3
pF
100
100
MΩ
.001 1
.001 1 µA
-.05
VCC+.05 -.05
VCC+.05 Volts
In Parallel with 100mΩ
In Parallel with 100mΩ
-90
-90
dB
Off to On Channel
-90
-90
dB
Off to On Channel
fD= Disturbance
1.5
1.5
12
12
25
5.85
2.25
10.0
1.0
4.5
1.0
4.5
clock
cycles
clock
cycles
kHz
µS
µS
µS
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
See Timing Diagrams
SP8538DS/01
SP8538 Micropower Sampling 12-Bit A/D Converter
2
© Copyright 1999 Sipex Corporation
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