MAX4638：3.5Ω、单路8:1及双路4:1、低电压模拟多路复用器

低导通电阻8:1和双4:1复用器

The MAX4638/MAX4639 are single 8:1 and dual 4:1 CMOS analog multiplexers/demultiplexers (muxes/demuxes). Each mux operates from a single +1.8V to +5V supply or dual ±2.5V supplies. These devices feature 3.5Ω on-resistance (RON) when powered with a single +5V supply and have -75dB off-isolation and -85dB crosstalk from the output to each off channel. The switching times are 18ns tON and 7ns tOFF. They feature a -3dB 85MHz bandwidth and a guaranteed 0.25nA leakage current at +25°C. A +1.8V to +5.5V operating range makes the MAX4638/MAX4639 ideal for battery-powered, portable instruments. All channels guarantee break-before-make switching. These parts feature bidirectional operation and can handle rail-to-rail analog signals. All control inputs are TTL/CMOS-logic compatible. Decoding is in standard BCD format, and an enable input is provided to simplify cascading of devices. These devices are available in small 16-pin thin QFN, TSSOP, and SO packages, as well as a 20-pin TQFN package.

关键特性

Guaranteed RON
- 3.5Ω (+5V or ±2.5V Supplies)
- 6Ω (+3V Supply)
Guaranteed 0.4Ω RON Match Between Channels
Guaranteed 1Ω RON Flatness Over Signal Range
Guaranteed Low Leakage Currents Switching Times: tON = 18ns, tOFF = 7ns
- 0.25nA at +25°C
+1.8V to +5.5V Single-Supply Operation
±2.5V Dual-Supply Operation
Rail-to-Rail Signal Handling
TTL/CMOS-Logic Compatible
Crosstalk: -80dB (1MHz)
Off-Isolation: -60dB (10MHz)

MAX4638、MAX4639：引脚配置/功能框图

应用

音频/视频信号切换
自动测试设备(ATE)
电池供电设备
低电压数据采集系统
医疗装置
继电器替代品

数据手册DataSheet

语言	下载文件	备注
英文	MAX4638-MAX4639.pdf	Rev 3; 11/2012

关键参数

Part Number	Config.	Channels	V_SUPPLY (Single) (V)	V_SUPPLY (Single) (V)	V_SUPPLY (Dual) (±V)	V_SUPPLY (Dual) (±V)	V_SIGNAL (V)	V_SIGNAL (V)	Dynamic Range (max) (V)	R_ON (Ω)	R_FLAT(ON) (Ω)	R_FLAT(ON) (Ω)	Bandwidth (MHz)	I_L(OFF) (nA)	t_ON (ns)	t_OFF (ns)	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	Budgetary Price
Part Number	Config.	Channels	min	max	min	max	min	max	max	max	typ	max	Bandwidth (MHz)	max	min	max	Q_INJECTION (pC)	C_ON (pF)	C_OFF (pF)	Package/Pins	See Notes
MAX4638	8-to-1	1	1.8	5.5	2.5	2.5	-2.75	5.5	5.5	3.5	0.75	1	50	0.01	18	7	13	40	9	SOIC(N)/16 TQFN/16 TSSOP/16	$2.59 @1k
MAX4639	4-to-1	2	1.8	5.5	2.5	2.5	-2.75	5.5	5.5	3.5	0.75	1	85	0.01	18	7	13	20	9	SOIC(N)/16 TQFN/16 TSSOP/16	$2.59 @1k

质量和环境数据

MAX4638.pdf

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX4638ESE	停止供货	MAX4638ESE+	SOIC(N),；16引脚；62mm²	-40°C至+85°C	RoHS/无铅：否
MAX4638ESE+	生产中		SOIC(N),；16引脚；62mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4638ESE+T	生产中		SOIC(N),；16引脚；62mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4638ESE-T	停止供货	MAX4638ESE+T	N.SO；16引脚	-40°C至+85°C	参考数据资料
MAX4638ETE	停止供货	MAX4638ETE+	TQFN,；16引脚；16.8mm²	-40°C至+85°C	RoHS/无铅：否
MAX4638ETE+	生产中		TQFN,；16引脚；16.8mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4638ETE+T	生产中		TQFN,；16引脚；16.8mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4638ETE-T	停止供货	MAX4638ETE+T	QFN；	-40°C至+85°C	参考数据资料
MAX4638EUE	停止供货	MAX4638EUE+	TSSOP,；16引脚；33.4mm²	-40°C至+85°C	RoHS/无铅：否
MAX4638EUE+	生产中		TSSOP,；16引脚；33.4mm²	-40°C至+85°C	RoHS/无铅：无铅
型号	状况	推荐替代产品	封装：类型引脚占位面积封装图编码/变更 *	温度	RoHS/无铅？
MAX4638EUE+T	生产中		TSSOP,；16引脚；33.4mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4638EUE-T	停止供货	MAX4638EUE+T	TSSOP,；16引脚；33.4mm²	-40°C至+85°C	RoHS/无铅：否