参数资料
型号: MAX4524EUB+T
厂商: Maxim Integrated Products
文件页数: 12/14页
文件大小: 0K
描述: IC MULTIPLEXER 4X1 10UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 多路复用器/多路分解器
电路: 1 x 4:1
导通状态电阻: 80 欧姆
电压电源: 单电源
电压 - 电源,单路/双路(±): 2 V ~ 12 V
电流 - 电源: 1µA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-µMAX
包装: 带卷 (TR)
__________Applications Information
Power-Supply Considerations
The MAX4524/MAX4525’s construction is typical of
most CMOS analog switches. They have two supply
pins: V+ and GND. V+ and GND are used to drive the
internal CMOS switches and set the limits of the analog
voltage on any switch. Reverse ESD-protection diodes
are internally connected between each analog signal
pin and both V+ and GND. If any analog signal
exceeds V+ or GND, one of these diodes will conduct.
During normal operation, these (and other) reverse-
biased ESD diodes leak, forming the only current drawn
from V+ or GND.
Virtually all the analog leakage current comes from the
ESD diodes. Although the ESD diodes on a given sig-
nal pin are identical, and therefore fairly well balanced,
they are reverse-biased differently. Each is biased by
either V+ or GND and the analog signal. This means
that leakage will vary as the signal varies. The differ-
ence in the two diode leakages to the V+ and GND
pins constitutes the analog signal-path leakage current.
All analog leakage current flows between each pin and
one of the supply terminals, not to the other switch ter-
minal. This is why both sides of a given switch can
show leakage currents of either the same or opposite
polarity.
MAX4524/MAX4525
Low-Voltage, Single-Supply
Multiplexer and Switch
_______________________________________________________________________________________
7
______________________________________________Test Circuits/Timing Diagrams
50%
tTRANS
V+
0V
VNO0
VOUT
VADD
0V
90%
tTRANS
50%
tTRANS
V+
0V
VNC
VOUT
VADD
0V
90%
tTRANS
VADD
V+
VOUT
GND
V+
ADDB
ADDA
INH
NO0
NO1–NO2
NO3
COM
V+
MAX4524
300
50
35pF
V+
VOUT
GND
V+
ADD
VADD
INH
NO
NC
COM
V+
MAX4525
300
50
35pF
REPEAT TEST FOR EACH SECTION.
Figure 1. Address Transition Time
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