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參數(shù)資料
| 型號： | MAX7490 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual Universal Switched-Capacitor Filters |
| 中文描述： | 雙路、通用開關(guān)電容濾波器 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 343K |
| 代理商： | MAX7490 |
General Description
The MAX7490/MAX7491 consist of two identical low-
power, low-voltage, wide dynamic range, Rail-to-Rail
,
2nd-order switched-capacitor building blocks. Each of
the two filter sections, together with two to four external
resistors, can generate all standard 2nd-order func-
tions: bandpass, lowpass, highpass, and notch (band
reject). Three of these functions are simultaneously
available. Fourth-order filters can be obtained by cas-
cading the two 2nd-order filter sections. Similarly, high-
er order filters can easily be created by cascading
multiple MAX7490/MAX7491s.
Two clocking options are available: self-clocking
(through the use of an external capacitor) or external
clocking for tighter cutoff frequency control. The clock-
to-center frequency ratio is 100:1. Sampling is done at
twice the clock frequency, further separating the cutoff
frequency and Nyquist frequency.
The MAX7490/MAX7491 have an internal rail splitter
that establishes a precise common voltage needed for
single-supply operation. The MAX7490 operates from a
single +5V supply and the MAX7491 operates from a
single +3V supply. Both devices feature a low-power
shutdown mode and come in a 16-pin QSOP package.
________________________Applications
Tunable Active Filters
Multipole Filters
ADC Anti-Aliasing
Post-DAC Filtering
Adaptive Filtering
Phase-Locked Loops (PLLs)
Set-Top Boxes
Features
o
Dual 2nd-Order Filter in a 16-Pin QSOP Package
o
High Accuracy
Q Accuracy: ±0.2%
Clock-to-Center Frequency Error: ±0.2%
o
Rail-to-Rail Input and Output Operation
o
Single-Supply Operation: +5V (MAX7490)
or +3V (MAX7491)
o
Internal or External Clock
o
Highpass, Lowpass, Bandpass, and Notch Filters
o
Clock-to-Center Frequency Ratio of 100:1
o
Internal Sampling-to-Center Frequency Ratio
of 200:1
o
Center Frequency up to 40kHz
o
Easily Cascaded for Multipole Filters
o
Low-Power Shutdown: <1μA Supply Current
M
Dual Universal Switched-Capacitor Filters
________________________________________________________________
Maxim Integrated Products
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
LPA
LPB
BPB
NB/HPB
INVB
SB
COM
EXTCLK
CLK
TOP VIEW
MAX7490
MAX7491
QSOP
BPA
NA/HPA
SHDN
INVA
SA
GND
V
DD
Pin Configuration
19-1768; Rev 0; 7/00
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
PART
TEMP. RANGE
PIN-
PACKAGE
SUPPLY
VOLTAGE
(+V)
MAX7490
CEE
MAX7490EEE
MAX7491
CEE
MAX7491EEE
0
°
C to +70
°
C
-40
°
C to +85
°
C
0
°
C to +70
°
C
-40
°
C to +85
°
C
16 QSOP
16 QSOP
16 QSOP
16 QSOP
5
5
3
3
Typical Application Circuit appears at end of data sheet.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX7491 | Dual Universal Switched-Capacitor Filters |
| MAX7490-MAX7491 | Dual Universal Switched-Capacitor Filters |
| MAX7491CEE | SILICON CONTROLLED RECTIFIER,400V V(DRM),70A I(T),TO-209AA RoHS Compliant: Yes |
| MAX7490CEE | Dual Universal Switched-Capacitor Filters |
| MAX7490EEE | Dual Universal Switched-Capacitor Filters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7490CEE | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7490CEE+ | 功能描述:有源濾波器 Dual Universal Switched-Cap RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7490CEE+T | 功能描述:有源濾波器 Dual Universal Switched-Cap RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7490CEE-T | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7490EEE | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
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