2024年5月8日发(作者：仲睿才)
19-3375; Rev 0; 7/04
双路
SPDT
模拟开关，
可处理超摆幅信号
________________________________
概述
________________________________
特性
MAX4850/MAX4850H/MAX4852/MAX4852H
系列是双路
♦
符合
SPDT
(单刀
/
双掷)开关，工作在
+2V
至
+5.5V
单电源，可
USB 2.0
全速(
12MB
)和
USB 1.1
信号开关要求
以处理大于电源摆幅的信号。这些开关具有
3.5Ω
或
♦
可切换大于
V
CC
的信号
3.5Ω/7Ω
的低导通电阻与低导通电容，可理想用于音频与
♦
0.1ns
偏差
数据信号的切换。
♦
3.5Ω/7Ω
导通电阻
MAX4850/MAX4850H
配置为两个
SPDT
开关，具有两个
♦
-3dB
带宽：
135MHz
比较器，用于耳机检测或静音
/
传送按键功能。
MAX4852
♦
配置为两个
+2V
至
+5.5V
电源范围
SPDT
开关，不具备比较器，电源电流低至
1µA
。
♦
与
1.8V
逻辑兼容
对于超摆幅应用，这些器件提供信号导通或高阻两种选
♦
低电源电流
择。对于
MAX4850/MAX4852
，即使在超出正电源摆幅
1µA (MAX4852)
的情况下，信号(高达
5.5V
)也可以不失真地通过开关。
5µA (MAX4850)
对于
MAX4850H/MAX4852H
，当输入信号超出电源摆幅
10µA (MAX4850H/MAX4852H)
时，开关输入变为高阻状态。
♦
提供节省空间(
3mm x 3mm
)的
16
引脚
TQFN
封装
MAX4850/MAX4850H/MAX4852/MAX4852H
提供节省空
间的(
3mm x 3mm
)、
16
引脚
TQFN
封装，工作在
-40°C
至
+85°C
扩展级温度范围。
_______________________________________
定购信息
____________________________________________
应用
USB
开关
PARTTEMP RANGEPIN-PACKAGE
TOP
MARK
音频信号切换
MAX4850ETE-40°C to +85°C16 TQFN-EP*ABU
蜂窝电话
MAX4850HETE-40°C to +85°C16 TQFN-EP*ABV
MAX4852ETE-40°C to +85°C16 TQFN-EP*ABZ
笔记本电脑
MAX4852HETE-40°C to +85°C16 TQFN-EP*ACA
PDA
及其它手持式设备
*EP =
裸露焊盘。
引脚配置和选择指南在数据资料的最后部分给出。
_______________________________________________________________________________________
方框图
/
真值表
MAX4850_
MAX4850MAX4852
MAX4852_
NC1
MAX4850HMAX4852H
NC1
3.5Ω
IN_NO_NC_
3.5Ω
COM1
COM1
0OFFON
NO1
IN1
NO1
1ONOFF
7Ω
IN1
SWITCHES SHOWN FOR
NC2
IN2
NC2
3.5Ω
IN2
LOGIC 0 INPUT
3.5Ω
COM2
COM2
NO2
V
CC
3
NO2
7Ω
COUT1
CIN1
V
CC
3
COUT2
CIN2
________________________________________________________________Maxim Integrated Products1
本文是
翻译错误，如需确认任何词语的准确性，请参考
Maxim
正式英文资料的译文，
Maxim
不对翻译中存在的差异或由此产生的错误负责。请注意译文中可能存在文字组织或
Maxim
提供的英文版资料。
索取免费样品和最新版的数据资料，请访问
Maxim
的主页：
。
MAX4850/MAX4850H/MAX4852/MAX4852H
双路
SPDT
模拟开关，
可处理超摆幅信号
M
A
X
4
8
5
0
/
M
A
X
4
8
5
0
H
/
M
A
X
4
8
5
2
/
M
A
X
4
8
5
2
H
ABSOLUTE MAXIMUM RATINGS
V
CC
, IN_, CIN_, COM_, NO_,
NC_ to GND (Note 1).........................................-0.3V to +6.0V
COUT_........................................................-0.3V to (V
CC
+ 0.3V)
COUT_ ±20mA
Closed Switch Continuous Current COM_, NO_, NC_
3.5Ω±100mA
7Ω±50mA
Peak Current COM_, NO_, NC_ (pulsed at 1ms, 50% duty cycle)
3.5Ω±200mA
7Ω±100mA
Peak Current COM_, NO_, NC_ (pulsed at 1ms, 10% duty cycle)
3.5Ω±240mA
7Ω±120mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN (derate 20.8mW/°C above +70°C)...........1667mW
Operating -40°C to +85°C
+150°C
Storage -65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Note 1: Signals on IN, NO, NC, or COM below GND are clamped by internal diodes. Limit forward-diode current to maximum
current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.0V, T
A
= +25°C, unless other-
wise noted.) (Note 2)
PARAMETER
Supply Voltage
SYMBOL
V
CC
MAX4850
Supply CurrentI
CC
V
CC
= 5.5V, V
IN_
= 0V or V
CC
MAX4850H/
MAX4852H
MAX4852
ANALOG SWITCH (3.5Ω Switch)
Analog Signal Range
V
NO_
, V
NC_
,
V
COM_
R
ON
V
CC
= 3V, I
COM_
= 10mA,
V
NC_
or V
NO_
= 0 to 5.5V
(MAX485_) or V
CC
(MAX485_H)
V
CC
= 3V, I
COM
= 10mA,
V
NC_
or V
NO_
= 1.5V
V
CC
= 3V, I
COM_
= 10mA,
V
NC_
or V
NO_
= 1V, 2V, 3V
V
CC
= 5.5V, V
NC_
or V
NO_
= 1V
or 4.5V, V
COM_
= 4.5V or 1V
V
CC
= 5.5V; V
NC_
or V
NO_
= 1V,
4.5V, or floating;
V
COM_
= 1V, 4.5V, or floating
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
-2
-10
-2
-12.5
100
20
1.2
0.1
0
3.5
5.5
4.5
5
0.2
0.25
1.8
2
+2
+10
+2
+12.5
nA
MHz
pF
nA
Ω
Ω
Ω
V
CONDITIONSMIN
2.0
5
10
TYPMAX
5.5
10
20
1
µA
UNITS
V
On-Resistance (Note 3)
On-Resistance Match
Between Channels
(Notes 3, 4)
On-Resistance Flatness
(Note 5)
NO_/NC_ Off-Leakage
Current
∆R
ON
R
FLAT
I
OFF
COM_ On-Leakage Current
-3dB Bandwidth
NO_/NC_ Off-Capacitance
I
ON
BW
C
OFF
Signal = 0dBm, R
L
= 50Ω, C
L
= 5pF (Figure 5)
f = 1MHz (Figure 6)
2_______________________________________________________________________________________
2024年5月8日发(作者：仲睿才)
19-3375; Rev 0; 7/04
双路
SPDT
模拟开关，
可处理超摆幅信号
________________________________
概述
________________________________
特性
MAX4850/MAX4850H/MAX4852/MAX4852H
系列是双路
♦
符合
SPDT
(单刀
/
双掷)开关，工作在
+2V
至
+5.5V
单电源，可
USB 2.0
全速(
12MB
)和
USB 1.1
信号开关要求
以处理大于电源摆幅的信号。这些开关具有
3.5Ω
或
♦
可切换大于
V
CC
的信号
3.5Ω/7Ω
的低导通电阻与低导通电容，可理想用于音频与
♦
0.1ns
偏差
数据信号的切换。
♦
3.5Ω/7Ω
导通电阻
MAX4850/MAX4850H
配置为两个
SPDT
开关，具有两个
♦
-3dB
带宽：
135MHz
比较器，用于耳机检测或静音
/
传送按键功能。
MAX4852
♦
配置为两个
+2V
至
+5.5V
电源范围
SPDT
开关，不具备比较器，电源电流低至
1µA
。
♦
与
1.8V
逻辑兼容
对于超摆幅应用，这些器件提供信号导通或高阻两种选
♦
低电源电流
择。对于
MAX4850/MAX4852
，即使在超出正电源摆幅
1µA (MAX4852)
的情况下，信号(高达
5.5V
)也可以不失真地通过开关。
5µA (MAX4850)
对于
MAX4850H/MAX4852H
，当输入信号超出电源摆幅
10µA (MAX4850H/MAX4852H)
时，开关输入变为高阻状态。
♦
提供节省空间(
3mm x 3mm
)的
16
引脚
TQFN
封装
MAX4850/MAX4850H/MAX4852/MAX4852H
提供节省空
间的(
3mm x 3mm
)、
16
引脚
TQFN
封装，工作在
-40°C
至
+85°C
扩展级温度范围。
_______________________________________
定购信息
____________________________________________
应用
USB
开关
PARTTEMP RANGEPIN-PACKAGE
TOP
MARK
音频信号切换
MAX4850ETE-40°C to +85°C16 TQFN-EP*ABU
蜂窝电话
MAX4850HETE-40°C to +85°C16 TQFN-EP*ABV
MAX4852ETE-40°C to +85°C16 TQFN-EP*ABZ
笔记本电脑
MAX4852HETE-40°C to +85°C16 TQFN-EP*ACA
PDA
及其它手持式设备
*EP =
裸露焊盘。
引脚配置和选择指南在数据资料的最后部分给出。
_______________________________________________________________________________________
方框图
/
真值表
MAX4850_
MAX4850MAX4852
MAX4852_
NC1
MAX4850HMAX4852H
NC1
3.5Ω
IN_NO_NC_
3.5Ω
COM1
COM1
0OFFON
NO1
IN1
NO1
1ONOFF
7Ω
IN1
SWITCHES SHOWN FOR
NC2
IN2
NC2
3.5Ω
IN2
LOGIC 0 INPUT
3.5Ω
COM2
COM2
NO2
V
CC
3
NO2
7Ω
COUT1
CIN1
V
CC
3
COUT2
CIN2
________________________________________________________________Maxim Integrated Products1
本文是
翻译错误，如需确认任何词语的准确性，请参考
Maxim
正式英文资料的译文，
Maxim
不对翻译中存在的差异或由此产生的错误负责。请注意译文中可能存在文字组织或
Maxim
提供的英文版资料。
索取免费样品和最新版的数据资料，请访问
Maxim
的主页：
。
MAX4850/MAX4850H/MAX4852/MAX4852H
双路
SPDT
模拟开关，
可处理超摆幅信号
M
A
X
4
8
5
0
/
M
A
X
4
8
5
0
H
/
M
A
X
4
8
5
2
/
M
A
X
4
8
5
2
H
ABSOLUTE MAXIMUM RATINGS
V
CC
, IN_, CIN_, COM_, NO_,
NC_ to GND (Note 1).........................................-0.3V to +6.0V
COUT_........................................................-0.3V to (V
CC
+ 0.3V)
COUT_ ±20mA
Closed Switch Continuous Current COM_, NO_, NC_
3.5Ω±100mA
7Ω±50mA
Peak Current COM_, NO_, NC_ (pulsed at 1ms, 50% duty cycle)
3.5Ω±200mA
7Ω±100mA
Peak Current COM_, NO_, NC_ (pulsed at 1ms, 10% duty cycle)
3.5Ω±240mA
7Ω±120mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN (derate 20.8mW/°C above +70°C)...........1667mW
Operating -40°C to +85°C
+150°C
Storage -65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Note 1: Signals on IN, NO, NC, or COM below GND are clamped by internal diodes. Limit forward-diode current to maximum
current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.7V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.0V, T
A
= +25°C, unless other-
wise noted.) (Note 2)
PARAMETER
Supply Voltage
SYMBOL
V
CC
MAX4850
Supply CurrentI
CC
V
CC
= 5.5V, V
IN_
= 0V or V
CC
MAX4850H/
MAX4852H
MAX4852
ANALOG SWITCH (3.5Ω Switch)
Analog Signal Range
V
NO_
, V
NC_
,
V
COM_
R
ON
V
CC
= 3V, I
COM_
= 10mA,
V
NC_
or V
NO_
= 0 to 5.5V
(MAX485_) or V
CC
(MAX485_H)
V
CC
= 3V, I
COM
= 10mA,
V
NC_
or V
NO_
= 1.5V
V
CC
= 3V, I
COM_
= 10mA,
V
NC_
or V
NO_
= 1V, 2V, 3V
V
CC
= 5.5V, V
NC_
or V
NO_
= 1V
or 4.5V, V
COM_
= 4.5V or 1V
V
CC
= 5.5V; V
NC_
or V
NO_
= 1V,
4.5V, or floating;
V
COM_
= 1V, 4.5V, or floating
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
T
A
= +25°C
T
A
= -40°C
to +85°C
-2
-10
-2
-12.5
100
20
1.2
0.1
0
3.5
5.5
4.5
5
0.2
0.25
1.8
2
+2
+10
+2
+12.5
nA
MHz
pF
nA
Ω
Ω
Ω
V
CONDITIONSMIN
2.0
5
10
TYPMAX
5.5
10
20
1
µA
UNITS
V
On-Resistance (Note 3)
On-Resistance Match
Between Channels
(Notes 3, 4)
On-Resistance Flatness
(Note 5)
NO_/NC_ Off-Leakage
Current
∆R
ON
R
FLAT
I
OFF
COM_ On-Leakage Current
-3dB Bandwidth
NO_/NC_ Off-Capacitance
I
ON
BW
C
OFF
Signal = 0dBm, R
L
= 50Ω, C
L
= 5pF (Figure 5)
f = 1MHz (Figure 6)
2_______________________________________________________________________________________