MAX4256：UCSP封装、单电源、低噪声、低失真、满摆幅运算放大器

The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2.4V. They draw 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage-noise density (7.9nV/) and low input current-noise density (0.5fA/). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise. For additional power conservation, the MAX4249/MAX4251/MAX4253/MAX4256 offer a low-power shutdown mode that reduces supply current to 0.5µA and puts the amplifiers' outputs into a high-impedance state. The MAX4249–MAX4257's outputs swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4250–MAX4254 are unity-gain stable with a gain-bandwidth product of 3MHz. The MAX4249/MAX4255/MAX4256/MAX4257 are internally compensated for gains of 10V/V or greater with a gain-bandwidth product of 22MHz. The single MAX4250/MAX4255 are available in space-saving 5-pin SOT23 packages. The MAX4252 is available in an 8-bump chip-scale package (UCSP™) and the MAX4253 is available in a 10-bump UCSP. The MAX4250AAUK comes in a 5-pin SOT23 package and is specified for operation over the automotive (-40°C to +125°C) temperature range.

关键特性

Available in Space-Saving UCSP, SOT23, and µMAX® Packages
Low Distortion: 0.0002% THD (1kΩ load)
400µA Quiescent Supply Current per Amplifier
Single-Supply Operation from 2.4V to 5.5V
Input Common-Mode Voltage Range Includes Ground
Outputs Swing Within 8mV of Rails with a 10kΩ Load
3MHz GBW Product, Unity-Gain Stable (MAX4250-MAX4254)
22MHz GBW Product, Stable with AV ≥ 10V/V (MAX4249/MAX4255/MAX4256/MAX4257)
Excellent DC Characteristics
- VOS = 70µV
- IBIAS = 1pA
- Large-Signal Voltage Gain = 116dB
Low-Power Shutdown Mode
- Reduces Supply Current to 0.5µA
- Places Outputs in a High-Impedance State
400pF Capacitive-Load Handling Capability

MAX4249、MAX4250、MAX4251、MAX4252、MAX4253、MAX4254、MAX4255、MAX4256、MAX4257：典型工作电路

应用

ADC缓冲器
自动测试设备(ATE)
心电监护仪
数字测量/张力计量
显示器：工业、前面板和仪表
工业：过程测量与控制
医疗仪表
PA控制
面板表
便携式电池供电设备
电表
可编程逻辑控制器(PLC)
无线通信设备

数据手册DataSheet

语言	下载文件	备注
英文	MAX4249-MAX4257.pdf	Rev 9; 01/2013

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)	Low Input Bias CMOS Inputs	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	Low Input Bias CMOS Inputs	max	typ	typ	<	Package/Pins	See Notes
MAX4249	2	Output Only	2.4	5.5	420	750	115	100	Yes	0.1	22	2.1	8.9	µMAX/10 SOIC(N)/14	$1.27 @1k
MAX4250	1										3	0.3		SOT/5	$1.29 @1k
MAX4251	1										3	0.3		µMAX/8 SOIC(N)/8	$1.16 @1k
MAX4252	2										3	0.3		µMAX/8 SOIC(N)/8 UCSP/9	$0.95 @1k
MAX4253	2										3	0.3		µMAX/10 SOIC(N)/14 UCSP/12	$1.64 @1k
MAX4255	1										22	2.1		SOT/5	$0.87 @1k
MAX4256	1										22	2.1		µMAX/8 SOIC(N)/8	$0.83 @1k
MAX4257	2										22	2.1		µMAX/8 SOIC(N)/8	$1.15 @1k

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX4256ESA	停止供货	MAX4256ESA+	SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：否
MAX4256ESA+	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4256ESA+T	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4256ESA-T	停止供货	MAX4256ESA+T	SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：否
MAX4256EUA	停止供货	MAX4256EUA+	µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：否
MAX4256EUA+	生产中		µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4256EUA+T	生产中		µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX4256EUA-T	停止供货	MAX4256EUA+T	µMAX,；8引脚；15.6mm²	-40°C至+85°C	RoHS/无铅：否

MAX4249-MAX4257.pdf MAX4257