MAX3490：3.3V供电、10Mbps、限摆率、真RS-485/RS-422收发器

The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit. The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication.

关键特性

Operate from a Single 3.3V Supply-No Charge Pump!
Interoperable with +5V Logic
8ns Max Skew (MAX3485/MAX3490/MAX3491)
Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)
2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)
-7V to +12V Common-Mode Input Voltage Range
Allows up to 32 Transceivers on the Bus
Full-Duplex and Half-Duplex Versions Available
Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)
Current-Limiting and Thermal Shutdown for Driver Overload Protection

MAX3483、MAX3485、MAX3486：典型应用电路

应用

工业控制局域网
集成服务数字网络
低功耗RS-485/RS-422收发器
分组交换技术
电信
用于EMI敏感应用的收发器

数据手册DataSheet

语言	下载文件	备注
英文	MAX3483-MAX3491.pdf	Rev 0; 12/1994

关键参数

Part Number	Tx/Rx	Duplex	V_SUPPLY (V)	I_CC (mA)	Data Rate (kbps)	Tx EN	Rx EN	I_CC (Shutdn.) (µA)	Rx/Tx on Bus	Rx Failsafe w/ Inputs	Slew Rate Limiting	Oper. Temp. (°C)	Package/Pins	Budgetary Price
Part Number	Tx/Rx	Duplex	V_SUPPLY (V)	typ	min	Tx EN	Rx EN	typ	Rx/Tx on Bus	Rx Failsafe w/ Inputs	Slew Rate Limiting	Oper. Temp. (°C)	Package/Pins	See Notes
MAX3483	1Tx + 1Rx	Half	3.3	1	250	Yes	Yes	0.002	32	Open	No	-40 to +85 0 to +70	PDIP(N)/8 SOIC(N)/8	$1.97 @1k
MAX3485		Half			10000	Yes	Yes	0.002					PDIP(N)/8 SOIC(N)/8
MAX3486		Half			2500	Yes	Yes	0.002					PDIP(N)/8 SOIC(N)/8
MAX3488		Full			250	No	No	-					PDIP(N)/8 SOIC(N)/8
MAX3490		Full			10000	No	No	-					PDIP(N)/8 SOIC(N)/8
MAX3491		Full			10000	Yes	Yes	0.002					PDIP(N)/14 SOIC(N)/14

技术资料

质量和环境数据

MAX3490.pdf

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX3490C/D	生产中		DICE SALES,；NA引脚；DICE S；	0°C至+70°C	参考数据资料
MAX3490CPA	停止供货	MAX3490CPA+	PDIP(N),；8引脚；81.9mm²	0°C至+70°C	RoHS/无铅：否
MAX3490CPA+	生产中		PDIP(N),；8引脚；81.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX3490CSA	停止供货	MAX3490CSA+	SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：否
MAX3490CSA+	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX3490CSA+T	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX3490CSA-T	停止供货	MAX3490CSA+T	N.SO；8引脚	0°C至+70°C	参考数据资料
MAX3490EPA	停止供货	MAX3490EPA+	PDIP(N),；8引脚；81.9mm²	-40°C至+85°C	RoHS/无铅：否
MAX3490EPA+	生产中		PDIP(N),；8引脚；81.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX3490ESA	停止供货	MAX3490ESA+	SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：否
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？
MAX3490ESA+	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX3490ESA+T	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX3490ESA-T	停止供货	MAX3490ESA+T	SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：否