MAX349:串行控制、低电压、8通道和双4通道多路复用器

The MAX349/MAX350 are 8-channel and dual 4-channel serially controlled multiplexers (muxes). These muxes conduct equally well in either direction. On-resistance (100Ω max) is matched between switches to 16Ω max and is flat (10Ω max) over the specified signal range. These CMOS devices can operate continuously with dual power supplies ranging from ±2.7V to ±8V or a single supply between +2.7V and +16V. Each mux can handle rail-to-rail analog signals. The off-leakage current is only 0.1nA at +25°C or 5nA at +85°C. Upon power-up, all switches are off and the internal shift registers are reset to zero. The serial interface is compatible with SPI™/QSPI™ and Microwire™. Functioning as a shift register, it allows data (at DIN) to be clocked in synchronously with the rising edge of clock (SCLK). The shift register's output (DOUT) enables several MAX349s or MAX350s to be daisy chained. All digital inputs have 0.8V or 2.4V logic thresholds, ensuring both TTL and CMOS-logic compatibility when using ±5V supplies or a single +5V supply.

关键特性
  • SPI/QSPI, Microwire-Compatible Serial Interface
  • 8 Separately Controlled SPST Switches
  • Single 8-to-1 Mux (MAX349)
  • Dual 4-to-1 Mux (MAX350)
  • 100Ω Signal Paths with ±5V Supplies
  • Rail-to-Rail Signal Handling
  • Asynchronous RESET Input
  • ±2.7V to ±8V Dual Supplies
  • +2.7V to +16V Single Supply
  • > 2kV ESD Protection per Method 3015.7
  • TTL/CMOS-Compatible Inputs (with +5V or ±5V Supplies)
MAX349、MAX350:引脚配置
MAX349、MAX350:引脚配置
应用
  • 音频信号切换
  • 自动测试设备(ATE)
  • 航空电子
  • 工业与过程控制系统
  • 网络
  • 串行数据采集系统
数据手册DataSheet
语言下载文件备注
英文MAX349-MAX350.pdfRev 1; 10/1998
关键参数
Part NumberFunctionsConfig.ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxminmaxSee Notes
MAX349Mux8-to-112.7162.781000.12751501082
  • CDIP(N)/18
  • PDIP(N)/18
  • SOIC(W)/18
  • SSOP/20
$4.31 @1k
MAX3504-to-12
  • CDIP(N)/18
  • PDIP(N)/18
  • SOIC(W)/18
  • SSOP/20
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX349C/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX349CAP停止供货MAX349CAP+SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:否
MAX349CAP+生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX349CAP+T生产中SSOP,;20引脚;57.9mm²0°C至+70°CRoHS/无铅:无铅
MAX349CAP-T停止供货MAX349CAP+TSSOP;20引脚0°C至+70°C参考数据资料
MAX349CPN停止供货MAX349CPN+PDIP(N),;18引脚;192mm²0°C至+70°CRoHS/无铅:否
MAX349CPN+生产中PDIP(N),;18引脚;192mm²0°C至+70°CRoHS/无铅:无铅
MAX349CWN停止供货MAX349CWN+SOIC(W),;18引脚;125.1mm²0°C至+70°CRoHS/无铅:否
MAX349CWN+生产中SOIC(W),;18引脚;125.1mm²0°C至+70°CRoHS/无铅:无铅
MAX349CWN+T生产中SOIC(W),;18引脚;125.1mm²0°C至+70°CRoHS/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?
MAX349CWN-T停止供货MAX349CWN+TW.SO;18引脚0°C至+70°C参考数据资料
MAX349EAP停止供货MAX349EAP+SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:否
MAX349EAP+生产中SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX349EAP+T生产中SSOP,;20引脚;57.9mm²-40°C至+85°CRoHS/无铅:无铅
MAX349EAP-T停止供货MAX349EAP+TSSOP;20引脚-40°C至+85°C参考数据资料
MAX349EPN停止供货MAX349EPN+PDIP(N),;18引脚;192mm²-40°C至+85°CRoHS/无铅:否
MAX349EPN+生产中PDIP(N),;18引脚;192mm²-40°C至+85°CRoHS/无铅:无铅
MAX349EWN停止供货MAX349EWN+SOIC(W),;18引脚;125.1mm²-40°C至+85°CRoHS/无铅:否
MAX349EWN+生产中SOIC(W),;18引脚;125.1mm²-40°C至+85°CRoHS/无铅:无铅
MAX349EWN+T生产中SOIC(W),;18引脚;125.1mm²-40°C至+85°CRoHS/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?
MAX349EWN-T停止供货MAX349EWN+TW.SO;18引脚-40°C至+85°C参考数据资料
MAX349MJN停止供货CDIP(N),;18引脚;198.2mm²-55°C至+125°CRoHS/无铅:否
MAX349-MAX350.pdf MAX350
MAX349-MAX350.pdf MAX350