MAX7651 데이터 시트보기 (PDF) - Maxim Integrated
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MAX7651 Datasheet PDF : 36 Pages
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Flash Programmable 12-Bit Integrated
Data-Acquisition Systems
ELECTRICAL CHARACTERISTICS (continued)
(MAX7651 AVDD = VPWMV = DVDD = VREF+ = +4.5V to +5.5V, VREF- = 0, fXTAL = 12MHz. MAX7652 AVDD = VPWMV = DVDD = +2.7V
to +3.6V, VREF+ = +2.5V, VREF- = 0, ACOM = AVDD/2, fXTAL = 12MHz. TA = TMIN to TMAX, unless otherwise noted. Typical values are
at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
CONVERSION RATE
Conversion Time
tCONV fXTAL = 12MHz
Conversion Rate
fXTAL = 12MHz
ANALOG INPUTS (AIN0–AIN7, ACOM)
18.7
µs
53.6 ksps
Input Voltage Range
Common-Mode Range
Input Current
0
AVDD
V
0
AVDD
V
1
µA
Input Capacitance
CIN
DIGITAL INPUTS
10
pF
Input Voltage Low
VIL
-0.5
0.2 x
(DVDD - 1)
V
Input Voltage High
Input high voltage, except XTAL and RST
VIH
Input high voltage, XTAL and RST
0.2 x
(DVDD
+ 0.9)
0.7 x
(DVDD
+ 0.1
DVDD
+ 0.5
V
DVDD
+ 0.5
Internal Reset Pulldown
Resistance
RRST
MAX7651
MAX7652
90
409
kΩ
170
490
Logical High-to-Low
Transition Current
ITL
Guaranteed by design
750
µA
Logical Zero Input Current,
Ports 1, 2, and 3 ALE,
PSEN
(Note 4)
75
µA
Input Leakage Current,
Port 0
Input Capacitance
DIGITAL OUTPUTS
Output Low Voltage
Output High Voltage
IIN
VIN = DVDD or DGND
VOL
VOH
ISINK = 4mA
MAX7651: ISOURCE = 4mA
MAX7652: ISOURCE = 2mA
±10
µA
10
pF
0.45
V
2.4
V
2.4
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