MP7543
ELECTRICAL CHARACTERISTICS (CONT’D)
Parameter
SWITCHING
CHARACTERISTICS
2, 4
Serial Input to Strobe Set-up Time
Serial Input to Strobe Set-up Time
Serial Input to Strobe Set-up Time
Serial Input to Strobe Set-up Time
Serial Input to Strobe Hold Time
Serial Input to Strobe Hold Time
Serial Input to Strobe Hold Time
Serial Input to Strobe Hold Time
SRI Data Pulse Width
STB1 Pulse Width
STB4 Pulse Width
STB3 Pulse Width
STB2 Pulse Width
Load Pulse Width
Minimum time between strobing
Reg. A and loading Reg. B
CLR pulse width
NOTES:
1
2
3
4
Symbol
Min
25
°
C
Typ
Max
Tmin to Tmax
Min
Max
Units
Test Conditions/Comments
t
DS1
t
DS4
t
DS3
t
DS2
t
DH1
t
DH4
t
DH3
t
DH2
t
SRI
t
STB1
t
STB4
t
STB3
t
STB2
t
LD1, 2
t
ASB
t
CLR
50
0
0
20
30
80
80
60
80
80
100
100
80
150
0
200
100
0
0
40
60
160
160
120
160
160
200
200
160
300
0
400
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
STB1 used as a strobe
STB4 used as a strobe
STB3 used as a strobe
STB2 used as a strobe
STB1 used as a strobe
STB4 used as a strobe
STB3 used as a strobe
STB2 used as a strobe
Full Scale Range (FSR) is 10V for unipolar mode.
Guaranteed but not production tested.
Digital input levels should not go below ground or exceed the positive supply voltage, otherwise damage may occur.
See timing diagram.
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS (T
A
= +25
°
C unless otherwise noted)
1, 2, 3
V
DD
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
Digital Input Voltage to GND (2) . GND –0.5 to V
DD
+0.5 V
I
OUT1
, I
OUT2
to GND . . . . . . . . . . . GND –0.5 to V
DD
+0.5 V
V
REF
to GND (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +25 V
V
RFB
to GND (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +25 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 V
(Functionality Guaranteed +0.5 V)
Storage Temperature . . . . . . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (Soldering, 10 seconds) . . . . . . +300
°
C
Package Power Dissipation Rating to 75
°
C
CDIP, PDIP, SOIC, PLCC . . . . . . . . . . . . . . . . . . 700mW
Derates above 75
°
C . . . . . . . . . . . . . . . . . . . . . 10mW/
°
C
NOTES:
1
Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a
stress rating only and functional operation at or above this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
2
Any input pin which can see a value outside the absolute maximum ratings should be protected by Schottky diode clamps
(HP5082-2835) from input pin to the supplies.
All inputs have protection diodes
which will protect the device from short
transients outside the supplies of less than 100mA for less than 100
µ
s.
3
GND refers to AGND and DGND.
Rev. 2.00
5
EXAR [ EXAR CORPORATION ]
