AS1543/44
Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Table 3. Electrical Characteristics (Continued)
Symbol
Conversion Rate
t
CONV
Conversion Time
Track-and-Hold Acquisition
Time
Throughput Rate
Aperture Delay
Aperture Jitter
Analog Input
Bit RANGE = 1
V
INx
Input Voltage Ranges
Bit SE/FDN = 1
Bit RANGE = 0
Bit RANGE = 1
Bit RANGE = 0
Bit RANGE = 1
Bit SE/FDN = 0
Bit RANGE = 0
DC Leakage Current
Input Capacitance
Reference Input
REFIN Input Voltage
1
Parameter
Condition
16 SCLK Cycles, SCLK = 20MHz
Min
Typ
Max
800
300
1
Unit
ns
ns
Msps
ns
ps
4
50
0
0
-V
REFIN
/
2
-V
REFIN
V
REFIN
/2
V
REFIN
-1
20
V
REFIN
2x
V
REFIN
V
REFIN
/
2
V
REFIN
V
DD
-
V
REFIN
/
2
V
DD
-
V
REFIN
+1
V
V
INx
- V
INy
Differential Input Voltage
Ranges
Bit SE/FDN = 0
V
V
CMIN
Input Common Mode
Voltage
V
µA
pF
2.5V ±1% for Specified Performance
1
V
DD
±1
V
µA
kΩ
DC Leakage Current
REFIN Input Impedance
Digital Inputs:
CSN, SCLK, DIN
V
IH
V
IL
I
IN
C
IN
Input High Voltage
Input Low Voltage
Input Current,
Input Capacitance
V
DRIVE
- 0.2
V
IN
= 0V or V
DRIVE
-1
5
0.7 x
V
DRIVE
f
SAMPLE
= 1Msps
44
V
0.3 x
V
DRIVE
+1
V
µA
pF
Digital Output:
DOUT
V
OH
V
OL
Output High Voltage
Output Low Voltage
Floating-State
Leakage Current
Floating-State
Output Capacitance
Output Coding
I
SOURCE
= 200µA; V
DD
= 2.7 to 5.25V
I
SINK
= 200µA
Bit
set to 0
Bit WEAK/TRIN set to 0
Bit
set to 1
Bit CODING set to 0
-1
10
Straight (natural) binary
Two’s complement
V
0.4
+1
V
µA
pF
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