MAX4855 0.75Ω、双路SPDT音频开关，具有集成比较器

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MAX4855双路单刀/双掷(SPDT)开关采用+2V至+5.5V供电，可处理满摆幅信号。MAX4855采用+3V供电时具有较低的导通电阻(0.75Ω)，非常适合于移动设备的音频开关应用。本器件还集成了两个比较器，可以用于耳机检测或静音/发送键。

MAX4855采用节省空间的(3mm x 3mm) 16引脚薄型QFN封装，工作在-40°C至+85°C扩展级温度范围。

关键特性

应用/使用

	切换音频信号
	0.75Ω导通电阻
	0.18Ω导通电阻平坦度
	0.07Ω的通道间匹配
	可处理满摆幅信号
	2个集成比较器
	兼容于1.8V逻辑电平
	2V至5.5V的电源范围
	采用节省空间的(3mm x 3mm) 16引脚TQFN封装

	音频信号切换
	蜂窝电话
	笔记本电脑
	PDA及其它手持设备
	扬声器-耳机开关

Key Specifications: Switches and Multiplexers (Low Voltage)

Part Number

Configuration

Number of Channels

V_SUPPLY, Single (min) (V)

V_SUPPLY, Single (max) (V)

R_ON (max) (Ω)

Bandwidth (MHz)

I_{L (OFF)} (max) (nA)

t_ON (max) (nS)

t_OFF (max) (nS)

Q_INJECTION (pC)

C_ON (pF)

C_OFF (pF)

Features

V_ISO, Off-Isolation (dB)

V_CT, Crosstalk (dB)

ΔR_ON (max) (Ω)

R_FLAT(ON) (max) (Ω)

Redundancy Switch

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX4855

SPDT

5.5

150

•	1.8V Logic Compatible

0.12

0.275

Yes

THIN QFN/16

$1.10 @ 1k

See All Switches and Multiplexers (Low Voltage) (127)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.