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參數(shù)資料
| 型號： | ADA4941-1YCP-EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 15/25頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADA4941-1YCP |
| 標準包裝： | 1 |
| 每 IC 通道數(shù)： | 1 - 單 |
| 放大器類型： | 差分 |
| 板類型： | 裸（未填充） |
| 已供物品： | 板 |
| 已用 IC / 零件： | 8-LFCSP 封裝 |
ADA4941-1
Rev. C | Page 21 of 24
ADDING A 3-POLE, SALLEN-KEY FILTER
The noninverting amplifier in the ADA4941-1 can be used as
the buffer amplifier of a Sallen-Key filter. A 3-pole, low-pass
filter can be designed to limit the signal bandwidth in front of
an ADC. The input signal first passes through the noninverting
stage where it is filtered. The filtered signal is then passed through
the inverting stage to obtain the complementary output.
Figure 54 illustrates a 3-pole, Sallen-Key, low-pass filter with a
3 dB cutoff frequency of 100 kHz. The 1.69 k resistor is
included to minimize dc errors due to the input offset current
in A1. The passive RC filters on the outputs are generally
required by the ADC converter that is being driven. The
frequency response of the filter is shown in Figure 55.
1k
1k
500
A2
A1
REF
IN
2
8
4
2.7nF
5
FB
+5V
–5V
560pF
VS+
VS–
OUT+
+
–
VO, dm
1
3
OUT–
VIN
562
562
562
1.69k
33
33
6
05704-
058
0.1F
2.7nF
3.9nF
10nF
Figure 54. Sallen-Key, Low-Pass Filter with 100 kHz Cutoff Frequency
0
–100
10
100M
FREQUENCY (Hz)
V
O,
d
m
/V
IN
(
dB
)
05704-
059
–10
–20
–30
–40
–50
–60
–70
–80
–90
100
1k
10k
100k
1M
10M
VO, dm = 3V p-p
Figure 55. Frequency Response of the Circuit Shown in Figure 54
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| ADA4941-1YCPZ-R2 | 制造商:Analog Devices 功能描述:SP Amp DIFF Line Driver Amp Single R-R O/P 12V 8-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:SP Amp DIFF Line Driver Amp Single R-R O/P 12V 8-Pin LFCSP EP Tape & Reel |
| ADA4941-1YCPZ-R7 | 功能描述:IC AMP DIFF ADC DVR 18BIT 8LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| ADA4941-1YCPZ-RL | 功能描述:IC DIFF ADC DRIVER 18BIT 8-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| ADA4941-1YR-EBZ | 功能描述:BOARD EVAL FOR ADA4941-1YR RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 運算放大器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- |
| ADA4941-1YRZ | 功能描述:IC DIFF ADC DVR 18BIT 8-SOIC RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:60 系列:- 類型:可變增益放大器 應用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
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