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| 型号： | LTC1562CN#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 23/28页 |
| 文件大小： | 0K |
| 描述： | IC FILTER UNIV RC QUAD LN 16DIP |
| 标准包装： | 25 |
| 滤波器类型： | 通用连续计时 |
| 频率 - 截止或中心： | 150kHz |
| 滤波器数： | 4 |
| 滤波器阶数： | 8th |
| 电源电压： | 4.75 V ~ 10.5 V，±4.75 V ~ 5.25 V |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
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4
LTC1562
1562fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Peak BP Gain vs Nominal fO
(VS = ±5V) (Figure 3, V1 Output)
Q Error vs Nominal fO (VS = ±2.5V)
NOMINAL fO (kHz)
50
Q
ERROR
(%)
35
30
25
20
15
10
5
0
–5
130
1562 G04
70
90
110
150
120
60
80
100
140
Q = 10
Q = 5
Q = 2.5
Q = 1
TA = 70°C
TA = 25°C
RIN = RQ
NOMINAL fO (kHz)
50
– 0.5
PEAK
BP
GAIN
(dB)
0
0.5
1.0
3.0
2.0
70
90 100
140
2.5
1.5
60
80
110 120 130
150
1562 G5
Q = 10
Q = 5
Q = 2.5
Q = 1
TA = 70°C
TA = 25°C
RIN = RQ
NOMINAL fO (kHz)
50
– 0.5
PEAK
BP
GAIN
(dB)
0
0.5
1.0
3.0
2.0
70
90 100
140
2.5
1.5
60
80
110 120 130
150
1562 G6
Q = 10
Q = 5
Q = 2.5
Q = 1
TA = 70°C
TA = 25°C
RIN = RQ
Peak BP Gain vs Nominal fO
(VS = ±2.5V) (Figure 3, V1 Output)
Distortion vs External Load
Resistance (VS = ±5V, 25°C)
(Figure 8)
EXTERNAL LOAD RESISTANCE (
)
10k
–100
THD
(AMPLITUDE
BELOW
FUNDAMENTAL)
(dB)
–80
–70
–60
–50
–40
–30
5k
2k
1562 G09
–20
–10
0
–90
1k
fIN = 50kHz
fIN = 20kHz
2nd ORDER LOWPASS
fO = 100kHz
Q = 0.7
OUTPUT LEVEL 1VRMS (2.83VP-P)
±5V SUPPLIES
LP Noise vs Nominal fO
(VS = ±5V, 25°C) (Figure 3,
V2 Output) (RIN = R2)
NOMINAL fO (kHz)
60
10
BP
NOISE
(
V
RMS
)
15
25
30
35
60
45
80
100
110
1562 G08
20
50
55
40
70
90
120 130
140
Q = 5
Q = 2.5
Q = 1
Power Supply Pins: The V+ and V – pins should be
bypassed with 0.1
F capacitors to an adequate analog
ground or ground plane. These capacitors should be
connected as closely as possible to the supply pins. In the
20-lead SSOP package, the additional pins 4, 7, 14 and 17
are internally connected to V – (Pin 16) and should also be
tied to the same point as Pin 16 for best shielding. Low
noise linear supplies are recommended. Switching sup-
plies are not recommended as they will lower the filter
dynamic range.
Analog Ground (AGND): The AGND pin is the midpoint of
an internal resistive voltage divider, developing a potential
halfway between the V + and V – pins, with an equivalent
series resistance nominally 7k
. This serves as an inter-
nal ground reference. Filter performance will reflect the
quality of the analog signal ground and an analog ground
plane surrounding the package is recommended. The
analog ground plane should be connected to any digital
ground at a single point. For dual supply operation, the
AGND pin should be connected to the ground plane
BP Noise vs Nominal fO
(VS = ±5V, 25°C) (Figure 3,
V1 Output) (RIN = RQ)
NOMINAL fO (kHz)
60
10
NOISE
(
V
RMS
)
15
25
30
35
60
45
80
100
110
1562 G07
20
50
55
40
70
90
120 130
140
Q = 5
Q = 2.5
Q = 1
UU
U
PI FU CTIO S
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