SP8542/8544DS/01 SP8542/8544 Two and Four Channel 12-Bit Multiplexed Sampling ADC's
Copyright 2000 Sipex Corporation
2
SPECIFICATIONS
Unless otherwise noted the following specifications apply for V
DD
= 5V with limits applicable for T
A
= 25C.
PARAMETER
MIN.
DC Accuracy
Resolution
Integral Linearity
J, A
K ,B
TYP.
MAX.
UNIT
CONDITIONS
12
Bits
+0.6
+0.4
+1
.
0
+0
.
75
LSB
LSB
Differential Linearity Error
J, A
K ,B
+0.5
+0.5
+1
.
0
+1
.
0
LSB
LSB
No Missing Codes
No Missing Codes
Gain Error
J, A
K,B
+0.2
+0.1
+1.0
+0.5
%FSR
%FSR
Externally Trimmable to Zero
Externally Trimmable to Zero
Offset Error
J, A
K,B
+4
+3
+7
+5
LSB
LSB
Externally Trimmable to Zero
Externally Trimmable to Zero
Analog Input
Input Impedance
On Channel
Off Channel (2)
Input Bias Current
Channel to Channel
Crosstalk
Off to On Channel
0 to 2
.
5
Volts
8
pF
G
nA
In series with 1.4K
note 2
1.0
1.0
-90
-80
dB
@ 10KHz Full Scale sine wave
Conversion Speed
Sample Time (1)
Conversion Time (1)
Complete Cycle (1)
Convert Rate (1)
Clock Speed
Date Rate (1)
Convert Rate (1)
400
3.75
4.25
ns
μ
s
μ
s
117.6
4
235
58.8
KHz
MHz
KHz
KHz
2 Channels
Total Conversion Rate
4 Channels
ABSOLUTE MAXIMUM RATINGS
(TA=+25C unless otherwise noted) ..............................................
VDD to DGND .............................................................-0.3V to +7V
VDA to AGND ..............................................................-0.3V to +7V
Vin to AGND .................................................... -0.3V to VDA +0.3V
Digital Input to VSS ........................................... -0.3V to VDD+0.3V
Digital Output to VSS ........................................ -0.3V to VDD+0.3V
Operating Temp. Range
Commercial (J,K Version) ............................... 0C to 70C
Industrial (A,B Version) ............................. -40C to +85C
Storage Temperature ............................................... -65C to 150C
Lead Temperature(Solder 10sec) ...................................... +300C
Power Dissipation to +70C ............................................... 500mW
Derate Power Dissipation Above 70C ......................... 10mW/ C