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參數(shù)資料
| 型號(hào)： | LTC1063MJ8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | DC Accurate, Clock-Tunable 5th Order Butterworth Lowpass Filter |
| 中文描述： | SWITCHED CAPACITOR FILTER, BUTTERWORTH, LOWPASS, CDIP8 |
| 封裝： | 0.300 INCH, CERAMIC, DIP-8 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大小： | 317K |
| 代理商： | LTC1063MJ8 |
1
LTC1063
DC Accurate, Clock-Tunable
5th Order Butterworth
Lowpass Filter
D
U
ESCRIPTIO
S
FEATURE
s
Clock-Tunable Cutoff Frequency
s
1mV DC Offset (Typical)
s
80dB CMRR (Typical)
s
Internal or External Clock
s
50
VRMS Clock Feedthrough
s
100:1 Clock-to-Cutoff Frequency Ratio
s
95
VRMS Total Wideband Noise
s
0.01% THD at 2VRMS Output Level
s
50kHz Maximum Cutoff Frequency
s
Cascadable for Faster Roll-Off
s
Operates from
±2.375 to ±8V Power Supplies
s
Self-Clocking with 1 RC
The LTC1063 is the first monolithic filter providing both
clock-tunability, low DC output offset and over 12-bit DC
accuracy. The frequency response of the LTC1063 closely
approximates a 5th order Butterworth polynomial. With
appropriate PCB layout techniques the output DC offset is
typically 1mV and is constant over a wide range of clock
frequencies. With
±5V supplies and ±4V input voltage
range, the CMR of the device is 80dB.
The filter cutoff frequency is controlled either by an inter-
nal or external clock. The clock-to-cutoff frequency ratio is
100:1. The on-board clock is power supply independent,
and it is programmed via an external RC. The 50
VRMS
clock feedthrough is considerably reduced over existing
monolithic filters.
The LTC1063 wideband noise is 95
VRMS, and it can
process large AC input signals with low distortion. With
±7.5V supplies, for instance, the filter handles up to
4VRMS (92dB S/N ratio) while the standard 1kHz THD is
below 0.02%; 80dB dynamic ranges (S/N +THD) is ob-
tained with input levels between 1VRMS and 2.3VRMS.
The LTC1063 is available in 8-pin miniDIP and 16-pin SOL.
For a linear phase response, see LTC1065 data sheet.
U
S
A
O
PPLICATI
s
Audio
s
Strain Gauge Amplifiers
s
Anti-Aliasing Filters
s
Low Level Filtering
s
Digital Voltmeters
s
60Hz Lowpass Filters
s
Smoothing Filters
s
Reconstruction Filters
U
A
O
PPLICATI
TYPICAL
2.5kHz 5th Order Lowpass Filter
Frequency Response
FREQUENCY (kHz)
1
GAIN
(dB)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
100
1063 TA02
VIN**
–5V
*19.1k
5V
0.1
F
VOUT
1063 TA01
SELF-CLOCKING SCHEME
IF THE INPUT VOLTAGE CAN EXCEED V+,
CONNECT A SIGNAL DIODE BETWEEN PIN 1 AND V+.
*
**
0.1
F
200pF*
1
2
3
4
8
7
6
5
LTC1063
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| LM336Z2.5 | Programmable Shunt Regulator |
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