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參數(shù)資料
| 型號： | 5962-9063301MCB |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運算放大器 |
| 英文描述： | QUAD OP-AMP, 2000 uV OFFSET-MAX, 4 MHz BAND WIDTH, CDIP14 |
| 封裝： | CERDIP-14 |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 459K |
| 代理商： | 5962-9063301MCB |
REV. C
AD713
–11–
FILTER APPLICATIONS
A Programmable State Variable Filter
For the state variable or universal filter configuration of Figure
18 to function properly, DACs A1 and B1 need to control the
gain and Q of the filter characteristic, while DACs A2 and B2
must accurately track for the simple expression of fC to be true.
This is readily accomplished using two AD7528 DACs and one
AD713 quad op amp. Capacitor C3 compensates for the effects
of op amp gain-bandwidth limitations.
This filter provides low pass, high pass and band pass outputs
and is ideally suited for applications where microprocessor
control of filter parameters is required. The programmable
range for component values shown is fC = 0 to 15 kHz and
Q = 0.3 to 4.5.
GIC and FDNR FILTER APPLICATIONS
The closely matched and uniform ac characteristics of the
AD713 make it ideal for use in GIC (gyrator) and FDNR (fre-
quency dependent negative resistor) filter applications. Figures
Figure 18. A Programmable State Variable Filter Circuit
19 and 21 show the AD713 used in two typical active filters.
The first shows a single AD713 simulating two coupled inductors
configured as a one-third octave bandpass filter. A single section
of this filter meets ANSI class II specifications and handles a
7.07 V rms signal with <0.002% THD (20 Hz–20 kHz).
Figure 21 shows a 7-pole antialiasing filter for a 2
oversam-
pling (88.2 kHz) digital audio application. This filter has <0.05
dB pass band ripple and 19.8
±0.3 s delay, dc-20 kHz and will
handle a 5 V rms signal (VS =
±15 V) with no overload at any
internal nodes.
The filter of Figure 19 can be scaled for any center frequency by
using the formula:
f
C =
1.11
2
πRC
where all resistors and capacitors scale equally. Resistors R3–R8
should not be greater than 2 k
in value, to prevent parasitic
oscillations caused by the amplifier’s input capacitance.
Figure 19. A 1/3 Octave Filter Circuit
相關PDF資料 |
PDF描述 |
|---|---|
| 5962-9063301MCB | QUAD OP-AMP, 2000 uV OFFSET-MAX, 4 MHz BAND WIDTH, CDIP14 |
| 5962-9080802Q2AX | DUAL OP-AMP, 6000 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, CQCC20 |
| 5962-9080802QPAX | DUAL OP-AMP, 6000 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, CDIP8 |
| 5962-9080901M2A | QUAD OP-AMP, 9000 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, CQCC20 |
| 5962-9080901MCA | QUAD OP-AMP, 9000 uV OFFSET-MAX, 1.3 MHz BAND WIDTH, CDIP14 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-9063302MCA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| 5962-9063501M2A | 制造商:Rochester Electronics LLC 功能描述:CMOS MULTIPLEXER - Bulk |
| 5962-9063501MVA | 制造商:Analog Devices 功能描述:Analog Multiplexer Single 8:1 18-Pin CDIP Tube 制造商:Analog Devices 功能描述:ANLG MUX SGL 8:1 16.5V/16.5V 18CDIP - Rail/Tube |
| 5962-9063502M2A | 制造商:Analog Devices 功能描述:ANLG MUX DUAL 4:1 16.5V/16.5V 20PIN LCC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:CMOS MULTIPLEXER - Bulk |
| 59629063502MVA | 制造商:AD 功能描述:ADG529ATQ/883B |
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