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参数资料
| 型号： | MAX4602CWE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 多路复用及模拟开关 |
| 英文描述： | 2.5з, Quad, SPST, CMOS Analog Switches |
| 中文描述： | QUAD 1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO16 |
| 封装： | 0.300 INCH, MS-013AA, SOIC-16 |
| 文件页数： | 11/12页 |
| 文件大小： | 194K |
| 代理商： | MAX4602CWE |
MAX4601/MAX4602/MAX4603
2.5
, Quad, SPST,
CMOS Analog Switches
8
_______________________________________________________________________________________
Applications Information
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings, because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by the
logic inputs, NO, or COM. If power-supply sequencing
is not possible, add two small signal diodes (D1, D2)
in series with the supply pins for overvoltage protection
(Figure 1). Adding diodes reduces the analog signal
range to one diode drop below V+ and one diode drop
above V-, but does not affect the devices’ low switch
resistance and low leakage characteristics. Device
operation is unchanged, and the difference between
V+ and V- should not exceed 44V. These protection
diodes are not recommended when using a single supply.
Off-Isolation at High Frequencies
In 50
systems, the high-frequency on-response of
these parts extends from DC to above 100MHz with a
typical loss of -2dB. When the switch is turned off, how-
ever, it behaves like a capacitor, and off-isolation
decreases with increasing frequency. (Above 300MHz,
the switch actually passes more signal turned off than
turned on.) This effect is more pronounced with higher
source and load impedances.
Above 5MHz, circuit board layout becomes critical, and
it becomes difficult to characterize the response of the
switch independent of the circuit. The graphs shown in
the
Typical Operating Characteristics were taken using
a 50
source and load connected with BNC connec-
tors to a circuit board deemed “average;” that is,
designed with isolation in mind, but not using strip-line
or other special RF circuit techniques. For critical appli-
cations above 5MHz, use the MAX440, MAX441, and
MAX442, which are fully characterized up to 160MHz.
COM_
V-
V+
NO_
* INTERNAL PROTECTION DIODES
D2
D1
-15V
+15V
MAX4601
MAX4602
MAX4603
*
tr < 20ns
tf < 20ns
50%
0
LOGIC
INPUT
V-
-15V
RL
100
NO_
OR NC_
GND
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
VO = VCOM
(
RL
)
RL + RON
SWITCH
INPUT
IN_
+3V
tOFF
0
COM_
SWITCH
OUTPUT
0.9V0
tON
VO
SWITCH
OUTPUT
LOGIC
INPUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
VL
V+
CL
35pF
+5V
+15V
VO
VCOM_
0
REPEAT TEST FOR EACH SWITCH. FOR LOAD
CONDITIONS, SEE
Electrical Characteristics.
MAX4601
MAX4602
MAX4603
Figure 1. Overvoltage Protection Using External Blocking
Diodes
Figure 2. Switching-Time Test Circuit
Timing Diagrams/Test Circuits
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4602CWE+ | 功能描述:模拟开关 IC 2.5Ohm Quad SPST Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4602CWE+T | 功能描述:模拟开关 IC 2.5Ohm Quad SPST Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4602CWE-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4602EAE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4602EAE+ | 功能描述:模拟开关 IC 2.5Ohm Quad SPST Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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