MP7543
ELECTRICAL CHARACTERISTICS (CONT’D)
25°C
Typ
Tmin to Tmax
Min Max
Parameter
Symbol
Min
Max
Units
Test Conditions/Comments
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
t
50
0
0
100
0
0
40
60
160
160
120
160
160
200
200
160
300
0
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
DS1
t
t
t
t
t
t
t
DS4
DS3
DS2
DH1
DH4
DH3
DH2
20
30
80
80
60
80
80
100
100
80
150
0
t
SRI
t
t
t
t
STB1
STB4
STB3
STB2
Load Pulse Width
t
LD1, 2
Minimum time between strobing
Reg. A and loading Reg. B
CLR pulse width
t
ASB
t
200
400
ns
CLR
NOTES:
1
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.
2
3
4
Specificationsare subject to change without notice
ABSOLUTE MAXIMUM RATINGS (TA = +25°C unless otherwise noted)1, 2, 3
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
Digital Input Voltage to GND (2) . GND –0.5 to VDD +0.5 V
IOUT1, IOUT2 to GND . . . . . . . . . . . GND –0.5 to VDD +0.5 V
Storage Temperature . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 seconds) . . . . . . +300°C
V
V
REF to GND (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +25 V
RFB to GND (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +25 V
Package Power Dissipation Rating to 75°C
CDIP, PDIP, SOIC, PLCC . . . . . . . . . . . . . . . . . . 700mW
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 V
(Functionality Guaranteed +0.5 V)
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
3
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 100µs.
GND refers to AGND and DGND.
Rev. 2.00
5
EXAR [ EXAR CORPORATION ]
