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參數(shù)資料
| 型號(hào)： | LT1568CGN |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Very Low Noise, High Frequency Active RC, Filter Building Block |
| 中文描述： | DUAL CONTINUOUS TIME FILTER, BUTTERWORTH/BESSEL/CHEBYSHEV, LOWPASS/BANDPASS, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 271K |
| 代理商： | LT1568CGN |
LT1568
1
1568f
The LT
1568 is an easy-to-use, active-RC filter building
block with rail-to-rail inputs and outputs. The internal ca-
pacitors of the IC and the GBW product of the internal low
noise op amps are trimmed such that consistent and repeat-
able filter responses can be achieved. With a single resis-
tor value, the LT1568 provides a pair of
matched
2-pole
Butterworth lowpass filters with unity gain suitable for I/Q
channels.
By using unequal-valued external resistors, the two 2-pole
sections can create different frequency responses or
gains. In addition, the two stages may be cascaded to
create a single 4-pole filter with a programmable re-
sponse. Capable of cutoff frequencies up to 10MHz, the
LT1568 is ideal for antialiasing or channel filtering in high
speed data communications systems. The LT1568 can
also be used as a bandpass filter.
The LT1568 features very low noise, supporting signal-to-
noise ratios of over 90dB. It also provides single-ended to
differential signal conversion for directly driving high
speed A/D converters. The LT1568 has a shutdown mode
that reduces supply current to approximately 0.5mA on a
5V supply.
The LT1568 is available in a narrow 16-lead SSOP
package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
Up to 10MHz Center Frequency on a Single 3V
Supply
I
Easy to Use—A Single Resistor Value Sets Lowpass
Cutoff Frequency (200kHz
≤
C
≤
5MHz
),
Unequal
Resistor Values Extend Cutoff Frequency Up to
10MHz
I
Extremely Flexible—Different Resistor Values
Allow Lowpass Transfer Functions with or Without
Gain (Butterworth, Chebyshev or Custom)
I
SNR = 92dB (
C
= 2MHz, 2V
P-P
)
I
THD = –84dB (
C
= 2MHz, 1V
P-P
)
I
Internal Capacitors Trimmed to
±
0.75%
I
Single 4-Pole Lowpass Filter or
Matched Pair
of
2-Pole Lowpass Filters
I
Can be Connected as a Bandpass Filter
I
Single-Ended or Differential Output
I
Operates from Single 3V (2.7V Min) to
±
5V Supply
I
Rail-to-Rail Input and Output Voltages
APPLICATIU
Very Low Noise,
High Frequency Active RC,
Filter Building Block
DESCRIPTIOU
I
Replaces Discrete RC Active Filters and LC Filter
Modules
I
Antialiasing/Reconstruction Filters
I
Dual or I-and-Q Channels (Two Matched 2nd Order
Filters in One Package)
I
Single-Ended to Differential Conversion
I
Video Signal Processing
V
+
INVA
SA
OUTA
OUTA
GNDA
NC
V
–
V
+
INVB
SB
OUTB
OUTB
GNDB
EN
V
–
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LT1568
511
0.1
μ
F
0.1
μ
F
511
511
511
511
1568 TA01
V
INA
3V
V
OUTA
V
OUTA
V
INB
THE PROPRIETARY ARCHITECTURE
ALLOWS FOR A SIMPLE RESISTOR
CALCULATION:
10MHz
C
V
OUTB
V
OUTB
511
R = 128
;
C
= CUTOFF FREQUENCY
Amplitude and Phase Matched Dual Butterworth 2.5MHz Lowpass
Filter with Differential Output. Single 3V Supply Operation
FREQUENCY (Hz)
100k
–27
G
–21
–15
–9
–3
1M
10M
1568 TA02
3
–24
–18
–12
–6
0
Amplitude Response
FEATURES
TYPICAL APPLICATIO
U
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| LT1568CGN#PBF | 功能描述:IC FILTER BUILDING BLOCK 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LT1568CGN#TR | 功能描述:IC BLOCK BUILD FLTR LONOS 16SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LT1568CGN#TRPBF | 功能描述:IC BLOCK BUILD FLTR LONOS 16SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| LT1568CGNPBF | 制造商:LINEAR_DIMENSIONS 制造商全稱:LINEAR_DIMENSIONS 功能描述:Very Low Noise, High Frequency Active RC, Filter Building Block |
| LT1568IGN | 功能描述:IC BLOCK BUILD FLTR LONOS 16SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
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