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LTC1562CG PDF预览

LTC1562CG

更新时间: 2024-01-13 10:56:20
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 493K
描述
Very Low Noise, Low Distortion Active RC Quad Universal Filter

LTC1562CG 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:SSOP包装说明:SSOP,
针数:20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.02Is Samacsys:N
有源滤波器类型:CONTINUOUS TIME FILTER中心频率或截止频率最大范围:150 kHz
中心频率或截止频率最小范围:10 kHzJESD-30 代码:R-PDSO-G20
JESD-609代码:e3长度:7.2 mm
湿度敏感等级:1负电源电压最大值(Vsup):-5 V
负电源电压最小值(Vsup):-2.5 V标称负供电电压 (Vsup):-5 V
功能数量:4端子数量:20
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):250极和零点:4 AND 0
认证状态:Not Qualified响应:UNIVERSAL
座面最大高度:2 mm最大供电电压 (Vsup):5 V
最小供电电压 (Vsup):2.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
传递特性:RESISTOR PROGRAMMABLE宽度:5.3 mm
Base Number Matches:1

LTC1562CG 数据手册

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LTC1562  
Very Low Noise, Low Distortion  
Active RC Quad Universal Filter  
U
FEATURES  
DESCRIPTION  
TheLTC®1562isalownoise, lowdistortioncontinuous-time  
filter with rail-to-rail inputs and outputs, optimized for a  
center frequency (fO) of 10kHz to 150kHz. Unlike most  
monolithic filters, no clock is needed. Four independent 2nd  
order filter blocks can be cascaded in any combination, such  
as one 8th order or two 4th order filters. Each block’s  
response is programmed with three external resistors for  
center frequency, Q and gain, using simple design formulas.  
Each 2nd order block provides lowpass and bandpass out-  
puts. Highpass response is available if an external capacitor  
replaces one of the resistors. Allpass, notch and elliptic  
responses can also be realized.  
Continuous Time—No Clock  
Four 2nd Order Filter Sections, 10kHz to 150kHz  
Center Frequency  
±0.5% Typical Center Frequency Accuracy  
±0.3% Typical Center Frequency Accuracy (A Grade)  
Wide Variety of Response Shapes  
Lowpass, Bandpass and Highpass Responses  
103dB Typical S/N, ±5V Supply (Q = 1)  
97dB Typical S/N, Single 5V Supply (Q = 1)  
96dB Typical S/(N +THD) at ±5V Supply, 20kHz Input  
Rail-to-Rail Input and Output Voltages  
DC Accurate to 3mV (Typ)  
“Zero-Power” Shutdown Mode  
The LTC1562 is designed for applications where dynamic  
range is important. For example, by cascading 2nd order  
sections in pairs, the user can configure the IC as a dual 4th  
order Butterworth lowpass filter with 94dB signal-to-noise  
ratio from a single 5V power supply. Low level signals can  
exploitthebuilt-ingaincapabilityoftheLTC1562.Varyingthe  
gain of a section can achieve a dynamic range as high as  
118dB with a ±5V supply.  
Single or Dual Supply, 5V to 10V Total  
Resistor-Programmable fO, Q, Gain  
U
APPLICATIONS  
High Resolution Systems (14 Bits to 18 Bits)  
Antialiasing/Reconstruction Filters  
Data Communications, Equalizers  
Dual or I-and-Q Channels (Two Matched 4th Order  
Othercutofffrequencyrangescanbeprovideduponrequest.  
Please contact LTC Marketing.  
Filters in One Package)  
Linear Phase Filtering  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Replacing LC Filter Modules  
U
TYPICAL APPLICATION  
Amplitude Response  
Dual 4th Order 100kHz Butterworth Lowpass Filter  
10  
0
–10  
–20  
R
, 10k  
IN2  
R
IN1  
10k  
20  
19  
18  
16  
15  
13  
12  
11  
1
2
INV C  
V
INV B  
V1 B  
IN2  
5V  
R
, 13k  
R
, 5.62k  
Q2  
Q1  
V1 C  
V2 C  
–30  
R22, 10k  
SCHEMATIC INCLUDES PIN  
R21, 10k  
3
V2 B  
+
NUMBERS FOR 20-PIN PACKAGE.  
V
–40  
OUT2  
5
PINS 4, 7, 14, 17 (NOT SHOWN)  
LTC1562  
–5V  
V
V
ALSO CONNECT TO V  
–50  
0.1µF  
0.1µF  
6
AGND  
V2 D  
SHDN  
V2 A  
V1 A  
INV A  
SEE TYPICAL APPLICATIONS  
FOR OTHER CUTOFF FREQUENCIES  
V
R23, 10k  
–60  
OUT1  
8
R24, 10k  
DC ACCURATE, NONINVERTING,  
UNITY-GAIN, RAIL-TO-RAIL  
INPUT AND OUTPUTS. PEAK  
SNR 100dB WITH ±5V SUPPLIES  
–70  
9
R
V1 D  
IN3  
10k  
R
, 13k  
Q4  
R
, 5.62k  
–80  
10  
Q3  
INV D  
V
10k  
100k  
1M  
IN1  
1562 TA01  
FREQUENCY (Hz)  
R
IN4  
, 10k  
1562 TA03b  
1

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