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| 型号： | MAX4855ETE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/10页 |
| 文件大小： | 0K |
| 描述： | IC MULTIPLEXER DUAL SPDT 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program Low Voltage Analog Switches Overview |
| 标准包装： | 100 |
| 功能： | 多路复用器 |
| 电路： | 2 x SPDT |
| 导通状态电阻： | 7.5 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 2 V ~ 5.5 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： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（3x3） |
| 包装： | 管件 |
MAX4855
Detailed Description
The MAX4855 dual SPDT, low on-resistance, low-voltage,
analog switch operates from a +2V to +5.5V supply and
can handle signals up to the power rails. In addition, the
MAX4855 integrates two internal comparators that can
be used for headphone or mute detection. The compara-
tor threshold is internally generated to be approximately
1/3 of VCC.
Applications Information
Digital Control Inputs
The logic inputs (IN_) accept up to +5.5V even if the
supply voltages are below this level. For example, with
a +3.3V VCC supply, IN_ can be driven low to GND and
high to +5.5V allowing for mixing of logic levels in a
system. Driving IN_ rail-to-rail minimizes power con-
sumption. For a +2V supply voltage, the logic thresholds
are 0.5V (low) and 1.4V (high); for a +5V supply voltage,
the logic thresholds are 0.8V (low) and 1.8V (high).
Analog Signal Levels
The on-resistance of these switches changes very little
for analog input signals across the entire supply voltage
range (see the Typical Operating Characteristics). The
switches are bidirectional, so the NO_, NC_, and COM_
pins can be either inputs or outputs.
Comparator
The positive terminal of the comparator is internally set to
VCC/3. When the negative terminal (CIN_) is below the
threshold (VCC/3), the comparator output (COUT_) is
high. When CIN_ rises above VCC/3, COUT_ is low.
The comparator threshold allows for detection of head-
phones since headphone audio signals are typically
biased to VCC/2.
Power-Supply Sequencing
Caution: Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to the device.
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply VCC before applying
analog signals, especially if the analog signal is not
current-limited.
0.75
, Dual SPDT Audio Switch with
Integrated Comparators
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1, 8
N.C.
No Connection. Not internally connected.
2
CIN1
Inverting Input for Comparator 1
3
CIN2
Inverting Input for Comparator 2
4
COM1
Common Terminal for Analog Switch 1
5
NO1
Normally Open Terminal for Analog Switch 1
6
GND
Ground
7
NC2
Normally Closed Terminal for Analog Switch 2
9
IN2
Digital Control Input for Analog Switch 2. A logic LOW on IN2 connects COM2 to NC2 and a logic
HIGH connects COM2 to NO2.
10
COM2
Common Terminal for Analog Switch 2
11
COUT1
Output for Comparator 1
12
NO2
Normally Open Terminal for Analog Switch 2
13
COUT2
Output for Comparator 2
14
VCC
Supply Voltage. Bypass to GND with a 0.01F capacitor as close to the pin as possible.
15
IN1
Digital Control Input for Analog Switch 1. A logic LOW on IN1 connects COM1 to NC1 and a logic
HIGH connects COM1 to NO1.
16
NC1
Normally Closed Terminal for Analog Switch 1
EP
—
Exposed Paddle. Connect to PC board ground plane.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4855ETE+ | 功能描述:模拟开关 IC .75Ohm Dual SPDT Audio 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 |
| MAX4855ETE+T | 功能描述:模拟开关 IC .75Ohm Dual SPDT Audio 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 |
| MAX4855ETE-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 |
| MAX485C/D | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX485CPA | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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