MAX14538E

更新时间： 2024-02-23 12:52:57

品牌	Logo	应用领域
美信 - MAXIM		开关光电二极管
页数	文件大小	规格书
8页	78K
描述
Low-Resistance DPDT Switches with Negative Rail

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技术参数
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MAX14538E 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	QFN	包装说明：	VQCCN,
针数：	10	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.79
模拟集成电路 - 其他类型：	DPDT	JESD-30 代码：	R-XQCC-N10
长度：	1.8 mm	信道数量：	2
功能数量：	1	端子数量：	10
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	VQCCN
封装形状：	RECTANGULAR	封装形式：	CHIP CARRIER, VERY THIN PROFILE
认证状态：	Not Qualified	座面最大高度：	0.55 mm
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.4 V
标称供电电压 (Vsup)：	3 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.4 mm
端子位置：	QUAD	宽度：	1.4 mm
Base Number Matches：	1

MAX14538E 数据手册

Low-Resistance DPDT Switches

with Negative Rail

Digital Control Input

Detailed Description

The MAX14535E−MAX14539E provide a single-bit con-

trol logic input, CB. CB controls the switch position as

shown in the Functional Diagrams. Drive CB rail-to-rail

to minimize power consumption.

The MAX14535E–MAX14539E are low on-resistance

and high ESD-protected single DPDT switches that

operate from a +2.4V to +5.5V supply and are

designed to multiplex AC-coupled analog signals.

These switches combine the low on-capacitance (C

)

Enable Input

The MAX14535E−MAX14539E feature a shutdown

mode that reduces the supply current (less than 1µA

for MAX14537E/MAX14538E) and places the switches

in high impedance. Drive EN low to place the device in

shutdown mode. Drive EN high for normal operation.

and low on-resistance (R ) necessary for high-perfor-

mance switching applications. The negative signal

capability of the analog channel allows signals below

ground to pass through without distortion.

Analog Signal Levels

The MAX14535E−MAX14539E are bidirectional, allow-

ing NO_, NC_, and COM_ to be configured as either

inputs or outputs. Note that NC_ and NO_ are only pro-

tected against ESD up to 2kV (Human Body Model)

and may require additional ESD protection if used as

outputs. These devices feature a charge pump that

generates a negative supply to allow analog signals as

low as -1.5V to pass through NO_, NC_, or COM_. This

allows AC-coupled signals that drop below ground to

pass even when operating from a 3.0V to 5.5V supply.

For the MAX14537E/MAX14538E, the negative charge

pump is controlled by the enable input and is active

when EN is high. When EN is driven low, the negative

charge pump is disabled, which puts the devices in the

lowest possible current consumption, and the signal

Shunt Resistors

(MAX14535E/MAX14537E/MAX14539E)

When EN is high, the shunt resistors are controlled by

CB. When CB is low, NC_ is connected to COM_ and

NO_ is connected to shunt resistors. When CB is high,

NO_ is connected to COM_ and NC_ is connected to

shunt resistors (MAX14539E). When EN is low, all the

switches are open and all the shunt resistors are active.

Click-and-Pop Suppression

The 500Ω shunt resistors on the MAX14535E/

MAX14537E/MAX14539E automatically discharge any

capacitance at the NO_ terminals (or NC_ terminals,

MAX14539E) when they are unconnected from COM_.

This reduces audio click-and-pop sounds that may

occur when switching between capacitively coupled

audio sources.

–MAX14539E

range is 0 to V . The negative charge pump is always

active for the MAX14535E/MAX14536E/MAX14539E,

therefore, a negative signal (at most -1.5V) can be

applied through NC_, NO_, or COM_, even when EN is

driven low. A negative rail signal (signal voltage < 0)

must not be applied to the switch unless the negative

charge pump is active.

_______________________________________________________________________________________

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与MAX14538E相关器件

型号	品牌	描述	获取价格	数据表
MAX14538EEVB+	MAXIM	Low-Resistance DPDT Switches with Negative Rail	获取价格
MAX14539E	MAXIM	Low-Resistance DPDT Switches with Negative Rail	获取价格
MAX14539EEVB+	MAXIM	Low-Resistance DPDT Switches with Negative Rail	获取价格
MAX1454	MAXIM	Precision Sensor Signal Conditioner with Overvoltage Protection	获取价格
MAX1454	ADI	高精度信号调理器，带有过压保护	获取价格
MAX1454_11	MAXIM	Precision Sensor Signal Conditioner with Overvoltage Protection	获取价格

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