MAX4245：超小型、满摆幅输入/输出、带有禁止功能、单/双电源供电、低功耗运算放大器

The MAX4245/MAX4246/MAX4247 family of low-cost op amps offer rail-to-rail inputs and outputs, draw only 320µA of quiescent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4245/MAX4247 offer a low-power shutdown mode that reduces supply current to 50nA, and puts the amplifiers' outputs in a high-impedance state. These devices are unity-gain stable with a 1MHz gain-bandwidth product driving capacitive loads up to 470pF. The MAX4245/MAX4246/MAX4247 family is specified from -40°C to +125°C, making them suitable for use in a variety of harsh environments. The MAX4245 single amplifier is available in ultra-small 6-pin SC70 and space-saving 6-pin SOT23 packages. The MAX4246 dual amplifier is available in 8-pin, SO, SOT23 and µMAX® packages. The MAX4247 dual amplifier comes in a tiny 10-pin µMAX package.

关键特性

Rail-to-Rail Input and Output Voltage Swing
50nA (max) Shutdown Mode (MAX4245/MAX4247)
320µA (typ) Quiescent Current Per Amplifier
Single +2.5V to +5.5V Supply Voltage Range
110dB Open-Loop Gain with 2kΩ Load
0.01% THD with 100kΩ Load
Unity-Gain Stable up to CLOAD = 470pF
No Phase Inversion for Overdriven Inputs
Available in Space-Saving Packages
- 6-Pin SC70 or 6-Pin SOT23 (MAX4245)
- 8-Pin SOT23/SO or 8-Pin µMAX (MAX4246)
- 10-Pin µMAX (MAX4247)

MAX4245、MAX4246、MAX4247：引脚配置

应用

汽车传感器
基站/无线基础架构
计算机：台式机、工作站和服务器
计算机：主板
计算机：笔记本电脑
电子点火模块
GPS方案
红外接收器
仪表与终端
MP3坞站：中级
便携式通信
可编程逻辑控制器(PLC)
传感器-信号检测
机顶盒
单电源供电过零检测器

数据手册DataSheet

语言	下载文件	备注
英文	MAX4245-MAX4247.pdf	Rev 3; 07/2014

关键参数

Part Number	Amps.	Rail to Rail	V_SUPPLY (Total) (V)	V_SUPPLY (Total) (V)	I_CC per Amp. (µA)	V_OS (µV)	CMRR @DC (dB)	PSRR @DC (dB)	Input I_BIAS (nA)	Unity Gain BW (MHz)	Slew Rate (V/µs)	e_n (nV/√Hz)	Package/Pins	Budgetary Price
Part Number	Amps.	Rail to Rail	min	max	typ	max	typ	typ	max	typ	typ	<	Package/Pins	See Notes
MAX4245	1	Input/Output	2.5	5.5	375	1500	60	70	50	1	0.4	52	SC-70/6 SOT/6	$0.72 @1k
MAX4246	2												µMAX/8 SOIC(N)/8 SOT/8	$1.01 @1k
MAX4247	2												µMAX/10	$1.01 @1k

技术资料

质量和环境数据

MAX4245.pdf

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX4245AUT+	生产中		SOT,；6引脚；9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4245AUT+T	生产中		SOT,；6引脚；9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4245AUT-T	停止供货	MAX4245AUT+T	SOT,；6引脚；9mm²	-40°C至+85°C	RoHS/无铅：否
MAX4245AXT+	生产中		SC-70,；6引脚；5.3mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4245AXT+T	生产中		SC-70,；6引脚；5.3mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4245AXT-T	停止供货	MAX4245AXT+T	SC-70,；6引脚；5.3mm²	-40°C至+85°C	RoHS/无铅：否