參數(shù)資料
型號: MAX4579CPP+
廠商: Maxim Integrated Products
文件頁數(shù): 6/20頁
文件大小: 0K
描述: IC MULTIPLEXER 8X1 20DIP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 18
功能: 多路復(fù)用器
電路: 1 x 8:1
導(dǎo)通狀態(tài)電阻: 350 歐姆
電壓電源: 單/雙電源
電壓 - 電源,單路/雙路(±): 4.5 V ~ 36 V,±4.5 V ~ 20 V
工作溫度: 0°C ~ 70°C
安裝類型: 通孔
封裝/外殼: 20-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 20-PDIP
包裝: 管件
MAX4578/MAX4579
High-Voltage, Single 8-to-1/
Dual 4-to-1 Cal-Multiplexers
14
______________________________________________________________________________________
Single-supply operation also limits signal levels and
interferes with ground referenced signals. When V- = 0,
AC signals are limited to -0.3V. Voltages below -0.3V
can be clipped by the internal ESD-protection diodes,
and the parts can be damaged if excessive current
flows.
Power Up
During power up, on-chip latches will strobe whatever
addresses are present if EN goes high before LATCH
reaches a logic high. When this condition occurs, one
of the internal dividers connected between the supplies
may immediately turn on, causing higher supply current
(1.4mA) when the enable input is toggled. Avoid this
condition by ensuring that EN stays low until the
remaining logic inputs are valid. To accomplish this,
connect a resistor from EN to ground or apply a low
voltage to EN before the other logic inputs go high.
Power Off
When power to the MAX4578/MAX4579 is off (i.e., V+ =
V- = 0), the Absolute Maximum Ratings still apply. This
means that neither logic-level inputs on NO_ nor sig-
nals on COM_ can exceed ±0.3V. Voltages beyond
±0.3V cause the internal ESD-protection diodes to con-
duct, and the parts can be damaged if excessive cur-
rent flows.
______________________________________________Test Circuits/Timing Diagrams
50%
tR < 20ns
tF < 20ns
VCOM
-15V
0V
VNO1, VNO1B
0V
VNO8, VNO4B
LOGIC
INPUT
VEN
SWITCH
OUTPUT
+15V
-15V
GND
V+
A1
A2
V-
EN
LATCH
CAL
A0
NO1
NO2–NO7
NO8
COM
+5V
-5V
50
MAX4578
1k
10pF
A1
A0
+15V
VCOM
-15V
GND
V+
V-
EN
NO1B
NO2B–NO3B
NO1A–NO2A
NO4B
COMB
+5V
50
MAX4579
1k
10pF
90%
tTRANS
-5V
LATCH
CAL
Figure 1. Transition Time
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