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General Description
The MAX7408/MAX7411/MAX7412/MAX7415 5th-order,
lowpass, elliptic, switched-capacitor filters (SCFs) oper-
ate from a single +5V (MAX7408/MAX7411) or +3V
(MAX7412/MAX7415) supply. The devices draw only
1.2mA of supply current and allow corner frequencies
from 1Hz to 15kHz, making them ideal for low-power
post-DAC filtering and anti-aliasing applications. They
can be put into a low-power mode, reducing supply
current to 0.2A.
Two clocking options are available: self-clocking (through
the use of an external capacitor) or external clocking for
tighter cutoff-frequency control. An offset-adjust pin
allows for adjustment of the DC output level.
The MAX7408/MAX7412 deliver 53dB of stopband
rejection and a sharp rolloff with a transition ratio of 1.6.
The MAX7411/MAX7415 achieve a sharper rolloff with a
transition ratio of 1.25 while still providing 37dB of stop-
band rejection. Their fixed response limits the design
task to selecting a clock frequency.
Applications
ADC Anti-Aliasing
CT2 Base Stations
Post-DAC Filtering
Speech Processing
Features
o 5th-Order, Elliptic Lowpass Filters
o Low Noise and Distortion: -80dB THD + Noise
o Clock-Tunable Corner Frequency (1Hz to 15kHz)
o Single-Supply Operation
+5V (MAX7408/MAX7411)
+3V (MAX7412/MAX7415)
o Low Power
1.2mA (operating mode)
0.2A (shutdown mode)
o Available in 8-Pin MAX/DIP Packages
o Low Output Offset: ±4mV
MAX7408/MAX7411/MAX7412/MAX7415
5th-Order, Lowpass, Elliptic,
Switched-Capacitor Filters
________________________________________________________________
Maxim Integrated Products
1
OS
OUT
VDD
1
2
8
7
CLK
SHDN
IN
GND
COM
MAX/DIP
TOP VIEW
3
4
6
5
MAX7408
MAX7411
MAX7412
MAX7415
VDD
IN
CLK
OUT
GND
INPUT
0.1
F
0.1
F
CLOCK
SHDN
OUTPUT
COM
OS
MAX7408
MAX7411
MAX7412
MAX7415
VSUPPLY
Typical Operating Circuit
19-1378; Rev 1; 10/98
Pin Configuration
Ordering Information
PART
MAX7408CPA
MAX7408CUA
MAX7408EPA
-40°C to +85°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 Plastic DIP
8 MAX
8 Plastic DIP
MAX7408EUA
MAX7415CPA
MAX7415CUA
MAX7415EPA
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
8 MAX
8 Plastic DIP
8 MAX
8 Plastic DIP
MAX7415EUA
-40°C to +85°C
8 MAX
PART
TRANSITION RATIO
OPERATING
VOLTAGE (V)
MAX7408
r = 1.6
+5
MAX7411
r = 1.25
+5
Selector Guide
MAX7412
r = 1.6
+3
MAX7415
r = 1.25
+3
MAX7411CPA
MAX7411CUA
MAX7411EPA
-40°C to +85°C
0°C to +70°C
8 Plastic DIP
8 MAX
8 Plastic DIP
MAX7411EUA
-40°C to +85°C
8 MAX
MAX7412CPA
MAX7412CUA
MAX7412EPA
-40°C to +85°C
0°C to +70°C
8 Plastic DIP
8 MAX
8 Plastic DIP
MAX7412EUA
-40°C to +85°C
8 MAX
EVALUATION
KIT
AVAILABLE
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相关代理商/技术参数
MAX7412EUA 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube
MAX7412EUA+ 功能描述:有源滤波器 5th-Order Lowpass Elliptic Filter RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube
MAX7412EUA+T 功能描述:有源滤波器 5th-Order Lowpass Elliptic Filter RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube
MAX7412EUA-T 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube
MAX7413CPA 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube
MAX7413CPA+ 功能描述:有源滤波器 5th-Order Lowpass Elliptic Filter RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube
MAX7413CUA 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube
MAX7413CUA+ 功能描述:有源滤波器 5th-Order Lowpass Elliptic Filter RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube