MAX7404：八阶、低通、椭圆函数、开关电容滤波器 _ BDTIC 中国领先电子元器件代理商

MAX7404：八阶、低通、椭圆函数、开关电容滤波器

尺寸最小的低功耗、8阶椭圆滤波器

The MAX7400/MAX7403/MAX7404/MAX7407 8th-order, lowpass, elliptic, switched-capacitor filters (SCFs) operate from a single +5V (MAX7400/MAX7403) or +3V (MAX7404/MAX7407) supply. These devices draw 2mA of supply current and allow corner frequencies from 1Hz to 10kHz, making them ideal for low-power anti-aliasing and post-DAC filtering applications. They feature a shutdown mode that reduces the supply current to 0.2µA. Two clocking options are available: self-clocking (through the use of an external capacitor) or external clocking for tighter cutoff-frequency control. In addition, an offset adjustment pin (OS) allows for the adjustment of the DC output level. The MAX7400/MAX7404 provide 82dB of stopband rejection and a sharp rolloff with a transition ratio of 1.5. The MAX7403/MAX7407 provide a sharper rolloff with a transition ratio of 1.2, while still delivering 60dB of stopband rejection. The fixed response of these devices simplifies the design task to corner-frequency selection by setting a clock frequency. The MAX7400/MAX7403/MAX7404/MAX7407 are available in 8-pin SO and DIP packages.

关键特性

8th-Order Lowpass Elliptic Filter
Low Noise and Distortion -82dB THD + Noise (MAX7400)
Clock-Tunable Corner Frequency (1Hz to 10kHz)
100:1 Clock-to-Corner Ratio
Single-Supply Operation
- +5V (MAX7400/MAX7403)
- +3V (MAX7404/MAX7407)
Low Power
- 2mA (Operating Mode)
- 0.2µA (Shutdown Mode)
Available in 8-Pin SO and DIP Packages
Low Output Offset: ±5mV

MAX7400、MAX7403、MAX7404、MAX7407：典型工作电路

应用

ADC抗混叠
气囊电子装置
CT2基站
DAC后置滤波
语音处理

数据手册DataSheet

语言	下载文件	备注
英文	MAX7400-MAX7407.pdf	Rev 2; 06/1999

关键参数

Part Number	Filter Sections	Order Per Filter Section	Filter Class	Filter Type	Filter Characteristic	Program Method	Lowest Cutoff (Hz)	Highest Cutoff (kHz)	V_SUPPLY (V)	Design Tools	Oper. Temp. (°C)	Package/Pins	Budgetary Price
Part Number	Filter Sections	Order Per Filter Section	Filter Class	Filter Type	Filter Characteristic	Program Method	max	min	V_SUPPLY (V)	Design Tools	Oper. Temp. (°C)	Package/Pins	See Notes
MAX7400	1	8	Switched Cap	Lowpass	Elliptic	Clock	1	10	5	EE-Sim	-40 to +85 0 to +70	PDIP(N)/8 SOIC(N)/8	$3.15 @1k
MAX7403									5			PDIP(N)/8 SOIC(N)/8	$2.94 @1k
MAX7404									3			PDIP(N)/8 SOIC(N)/8	$2.76 @1k
MAX7407									3			PDIP(N)/8 SOIC(N)/8	$2.76 @1k

技术资料

质量和环境数据

MAX7404.pdf

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX7404CPA	停止供货	MAX7404CPA+	PDIP(N),；8引脚；79.7mm²	0°C至+70°C	RoHS/无铅：否
MAX7404CPA+	生产中		PDIP(N),；8引脚；79.7mm²	0°C至+70°C	RoHS/无铅：无铅
MAX7404CSA	停止供货	MAX7404CSA+	SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：否
MAX7404CSA+	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX7404CSA+T	生产中		SOIC(N),；8引脚；30.9mm²	0°C至+70°C	RoHS/无铅：无铅
MAX7404CSA-T	停止供货	MAX7404CSA+T	N.SO；8引脚	0°C至+70°C	参考数据资料
MAX7404EPA	停止供货	MAX7404EPA+	PDIP(N),；8引脚；79.7mm²	-40°C至+85°C	RoHS/无铅：否
MAX7404EPA+	生产中		PDIP(N),；8引脚；79.7mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX7404ESA	停止供货	MAX7404ESA+	SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：否
MAX7404ESA+	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/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？
MAX7404ESA+T	生产中		SOIC(N),；8引脚；30.9mm²	-40°C至+85°C	RoHS/无铅：无铅
MAX7404ESA-T	停止供货	MAX7404ESA+T	N.SO；8引脚	-40°C至+85°C	参考数据资料