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參數(shù)資料
| 型號(hào)： | LT1228CS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | CAP 33000UF 50V ELECT TUP SERIES |
| 中文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大?。?/td> | 435K |
| 代理商： | LT1228CS8 |
17
LT1228
U
S
A
O
PPLICATI
TYPICAL
Filters
Single Pole Low/High/Allpass Filter
LT1228 TA16
–
+
–
+
g
m
CFA
V
OUT
8
3
2
R
F
1k
R2
120
5
1
6
R3
120
C
330pF
f
C
= 2
×
×
×
π
C
R3A
1k
I
SET
R
G
1k
R2A
1k
V
LOWPASS
INPUT
V
HIGHPASS
INPUT
f
C
= 10
9
I
SET
FOR THE VALUES SHOWN
10
I
SET
R
F
+ 1
R
G
R2
R2
+ R2A
Allpass Filter Phase Response
FREQUENCY (Hz)
10k
P
–90
–45
0
100k
1M
10M
LT1228 TA17
–135
–180
1mA SET CURRENT
100
μ
A SET CURRENT
Using the variable transconductance of the LT1228 to
make variable filters is easy and predictable. The most
straight forward way is to make an integrator by putting a
capacitor at the output of the transconductance amp and
buffering it with the current feedback amplifier. Because
the input bias current of the current feedback amplifier
must be supplied by the transconductance amplifier, the
set current should not be operated below 10
μ
A. This limits
the filters to about a 100:1 tuning range.
The Single Pole circuit realizes a single pole filter with a
corner frequency (f
C
) proportional to the set current. The
values shown give a 100kHz corner frequency for 100
μ
A
set current. The circuit has two inputs, a lowpass filter
input and a highpass filter input. To make a lowpass filter,
ground the highpass input and drive the lowpass input.
Conversely for a highpass filter, ground the lowpass input
and drive the highpass input. If both inputs are driven, the
result is an allpass filter or phase shifter. The allpass has
flat amplitude response and 0
°
phase shift at low frequen-
cies, going to –180
°
at high frequencies. The allpass filter
has –90
°
phase shift at the corner frequency.
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| LT1228CS8#PBF | 功能描述:IC CURRNT FEEDBK AMP 100MHZ8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT1228CS8#TR | 功能描述:IC AMP CURR FEEDBCK 100MHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1228CS8#TRPBF | 功能描述:IC CURRNT FEEDBK AMP 100MHZ8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LT1228CS8PBF | 制造商:Linear Technology 功能描述:LT1228CS8PBF |
| LT1228IN8 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:100MHz Current Feedback Amplifier with DC Gain Control |
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