MAX385:高精度、低电压、SPST、CMOS模拟开关

The MAX381/MAX383/MAX385 are precision, low-voltage analog switches. The single-pole single-throw MAX381 and double-pole single-throw MAX385 dual switches are normally open. The single-pole double-throw MAX383 has two normally open and two normally closed poles. All three parts offer low on-resistance (less than 35Ω), guaranteed to match to within 2Ω between channels and to remain flat over the specified analog signal range (4Ω max). They also offer low leakage (less than 250pA at +25°C and less than 2.5nA at +85°C) and fast switching (turn-on time less than 175ns and turn-off time less than 100ns). The MAX381/MAX383/MAX385 are fabricated with Maxim's low-voltage silicon-gate process for high system accuracy. Design improvements guarantee extremely low charge injection (< 5pC) and low power consumption (< 10µW). These monolithic switches operate with a single positive supply (+3V to +15V) or with split supplies (±3V to ±8V) while retaining CMOS-logic input compatibility and fast switching. CMOS inputs provide reduced input loading.

关键特性
  • Single-Supply Operation (+3V to +15V)
  • Bipolar-Supply Operation (±3V to ±8V)
  • Pin-Compatible with DG401/DG403/DG405
  • Low On-Resistance, 20Ω Typical (35Ω Max)
  • Guaranteed Matched On-Resistance Between Channels, < 2Ω
  • Guaranteed Flat On-Resistance over Specified Analog Signal Range, < 4Ω
  • Guaranteed Charge Injection, < 5pC
  • Guaranteed Off-Channel Leakage, < 2.5nA at +85°C
  • TTL/CMOS-Logic Compatible with 3V, 5V, ±3V, and ±5V Supplies
  • Rail-to-Rail Analog Signal Handling Capability
MAX381、MAX383、MAX383B、MAX385:引脚配置/原理框图/真值表
MAX381、MAX383、MAX383B、MAX385:引脚配置/原理框图/真值表
应用
  • 音频信号切换
  • 电池供电应用
  • 通信系统
  • 引导与控制系统
  • 平面显示器
  • 军用无线装置
  • PBX、PABX
  • 采样保持电路
  • 测试设备
数据手册DataSheet
语言下载文件备注
英文MAX381-MAX385.pdfRev 0; 09/1994
关键参数
Part NumberConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
VSUPPLY (Dual)
(±V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
RFLAT(ON)
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxminmaxmaxmaxtypmaxmaxminmaxSee Notes
MAX381SPST2Open2.716-8-81616354100.217510053912
  • CDIP(N)/16
  • PDIP(N)/16
  • SOIC(N)/16
$12.02 @1k
MAX383
  • 2-to-1
  • SPDT
Open/Closed3-
  • CDIP(N)/16
  • PDIP(N)/16
  • SOIC(N)/16
$4.37 @1k
MAX385DPSTOpen3-
  • CDIP(N)/16
  • PDIP(N)/16
  • SOIC(N)/16
$9.24 @1k

Part NumberFunctionsConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSUPPLY (Dual)
(±V)
RON
(Ω)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxmaxmaxmaxminmaxSee Notes
MAX381SwitchSPST2Open2.7168350.217510053912
  • CDIP(N)/16
  • PDIP(N)/16
  • SOIC(N)/16
$12.02 @1k
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX385BCPE停止供货参考数据资料
MAX385BCSE停止供货参考数据资料
MAX385BEPE停止供货参考数据资料
MAX385BESE停止供货参考数据资料
MAX385C/D停止供货DICE SALES,;NA引脚;DICE;0°C至+70°C参考数据资料
MAX385CPE停止供货MAX385CPE+PDIP(N),;16引脚;158.4mm²0°C至+70°CRoHS/无铅:否
MAX385CPE+生产中PDIP(N),;16引脚;158.4mm²0°C至+70°CRoHS/无铅:无铅
MAX385CSE停止供货MAX385CSE+SOIC(N),;16引脚;62mm²0°C至+70°CRoHS/无铅:否
MAX385CSE+生产中SOIC(N),;16引脚;62mm²0°C至+70°CRoHS/无铅:无铅
MAX385CSE+T生产中SOIC(N),;16引脚;62mm²0°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?
MAX385CSE-T停止供货MAX385CSE+TN.SO;16引脚0°C至+70°C参考数据资料
MAX385EJE停止供货CDIP(N),;16引脚;173.5mm²-40°C至+85°CRoHS/无铅:否
MAX385EPE停止供货PDIP(N),;16引脚;158.4mm²-40°C至+85°CRoHS/无铅:否
MAX385EPE+最后一次购买MAX385ESE+PDIP(N),;16引脚;158.4mm²-40°C至+85°CRoHS/无铅:无铅
MAX385ESE停止供货MAX385ESE+SOIC(N),;16引脚;62mm²-40°C至+85°CRoHS/无铅:否
MAX385ESE+生产中SOIC(N),;16引脚;62mm²-40°C至+85°CRoHS/无铅:无铅
MAX385ESE+T生产中SOIC(N),;16引脚;62mm²-40°C至+85°CRoHS/无铅:无铅
MAX385ESE-T停止供货MAX385ESE+TN.SO;16引脚-40°C至+85°C参考数据资料
MAX385MJE停止供货CDIP(N),;16引脚;173.5mm²-55°C至+125°CRoHS/无铅:否
MAX381-MAX385.pdf MAX385
MAX381-MAX385.pdf MAX383B