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参数资料
| 型号： | MAX271CWG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 16/16页 |
| 文件大小： | 0K |
| 描述： | IC FILTER LOWPASS PROG 24-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 30 |
| 滤波器类型： | 连续时间低通 |
| 频率 - 截止或中心： | 25kHz |
| 滤波器数： | 2 |
| 滤波器阶数： | 2nd |
| 电源电压： | 4.74 V ~ 16 V，±2.37 V ~ 8 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 管件 |
9
Maxim Integrated
Digitally-Programmed, Dual
2nd-Order Continuous Lowpass Filter
MAX270/MAX271
Figure 1c. MAX271 Block Diagram—Pin-Strap Mode
Filter Programming
Cutoff Frequency
fC is the frequency of 3dB attenuation in the filter
response.
Table 1 shows how data pins D0–D6 allow programming
of 128 cutoff frequencies from 1kHz to 25kHz.
The equations for calculating fC from the programmed
code are as follows:
=
C
87.5
f
x1kHz
forcodes0 63
87.5 CODE
)
(f
1kHz to3.57kHz
262.5
f
x1kHz for codes 64 127
137.5 CODE
(f
kHz to kHz)
3.57
25
where CODE is the data on pins D0–D6 (0–127). D6 is
the most significant bit (MSB).
Actual cutoff frequencies are subject to some error for
each programmed code. Highest accuracy occurs at
CODE = 0 where filters are trimmed for a 1kHz cut-
off frequency. At higher codes, CODE vs. fC errors
increase; the frequency error at CODE = 127 {highest
code) remains typically within Q9.5%. This means that
the actual filter cutoff frequency, when programmed to
CODE = 127, falls between 22.63kHz and 27.38kHz.
DIRECT
CONTROL
D0-D6
17-23
5
INA
OUTA
T/H OUT
OUTB
2
15
16
A1*
6
V+
V-
10
GND
EN
3
1
9
7
INB
14
12
4
CS* WR*
SHDN*
11
T/H*
A/B
24
TO GND OR V-
T/H
A0*
*PIN HAS NO FUNCTION IN PIN-STRAP MODE.
EN
13
T/H*
EN
PIN-STRAP
MODE
8
MAX270
MODE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX271CWG+ | 功能描述:有源滤波器 Digitally Prog Dual 2-ORD Cont Lowpass 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 |
| MAX271CWG+T | 功能描述:有源滤波器 Digitally Prog Dual 2-ORD Cont Lowpass 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 |
| MAX271CWG-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 |
| MAX271ENG | 功能描述:有源滤波器 Integrated Circuits (ICs) 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 |
| MAX271ENG+ | 功能描述:有源滤波器 Digitally Prog Dual 2-ORD Cont Lowpass 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 |
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