MP8831 查看數據表（PDF） - Exar Corporation
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MP8831 Datasheet PDF : 16 Pages
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MP8831
DC ELECTRICAL CHARACTERISTICS (CONT’D)
Symbol Parameter
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pass-Through Mode AD=>DA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t10
DAbus Release to CNTL-A
Falling Edge
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t11
CNTL-A Falling Edge to ADbus
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Release
Min.
0
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t12
Pass-Through Mode Propagation
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Delay From ADbus to DAbus
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t13
ADbus Release to CNTL-A
0
Rising Edge
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t14
CNTL-A Rising Edge to ADbus
Enable
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t15
CNTL-A Rising Edge to DAbus
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Release
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pass-Through Mode DA=>AD
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t16
CNTL-B Falling Edge to ADbus
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pass-through Data Valid
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t17
Pass-Through Mode Propagation
Delay From DAbus to ADbus
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ t18
CNTL-B Rising Edge to ADbus
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ADC Data Valid
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Supply
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ VDD
Operating Voltage
4.5
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ IDD
Operating Current
30
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Down IDD
Typ. Max.
20
40
17
30
30
50
20
40
30
50
19
35
30
50
5
5.5
35
40
0.2
0.5
Unit
Conditions
ns External ckts must stop driving DA-
bus by the time CNTL-A falls.
ns Delay from falling edge CNTL-A un-
til chip stops driving ADC data on
ADbus. External ckts may not drive
data onto ADbus before this time.
ns CNTL-A=low, CNTL-B=high; 30 pF
load.
ns External ckts must stop driving AD-
bus by the time CNTL-A rises.
ns After this time ADbus will output
previous ADC data again.
ns Delay from rising edge CNTL-A un-
til chip stops driving data on DAbus.
External ckts may not drive data
onto DAbus before this time.
ns Time required for ADbus change
from ADC data to DAbus pass-
through data.
ns CNTL-A=high, CNTL-B=low; 30 pF
load.
ns Time required for ADbus change
from DAbus pass-through data to
ADC data.
V
mA
mA
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6 V
All Inputs . . . . . . . . . . . . . . . . . . . VDD +0.5 to GND -0.5
All Inputs . . . . . . . . . . . . . . . . . . . VDD +0.5 to GND -0.5
Storage Temperature . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (soldering, 10 sec) . . . . . . +300°C
ESD Rating/Latch-up . . . . . . . . . . . . . . 2000V/100mA
Package Power Dissipation . . . . . . . . . . . . . . . 850mW
Derate above 75°C . . . . . . . . . . . . . . . . . . 12mW/°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 100µs.
Rev. 1.00
6
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