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參數(shù)資料
| 型號： | LTC1562I-2 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Very Low Noise, Low Distortion Active RC Quad Universal Filter |
| 中文描述： | 非常低噪聲，低失真有源RC四通用濾波器 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大小： | 179K |
| 代理商： | LTC1562I-2 |
3
LTC1562-2
SYMBOL
THD
PARAMETER
Total Harmonic Distortion, V2 Output
CONDITIONS
f
IN
= 20kHz, 2.8V
P-P
, V1 and V2 Outputs Have
R
L
= 5k, C
L
= 30pF
f
IN
= 20kHz, 9V
P-P
, V1 and V2 Outputs Have
R
L
= 5k, C
L
= 30pF
SHDN Pin to V
+
SHDN Pin to V
+
, V
S
=
±
2.375V
MIN
TYP
–100
MAX
UNITS
dB
–82
dB
Shutdown Supply Current
1.5
1.0
2.5
–10
20
100
5
15
μ
A
μ
A
V
μ
A
μ
s
μ
s
pA
Shutdown-Input Logic Threshold
Shutdown-Input Bias Current
Shutdown Delay
Shutdown Recovery Delay
Inverting Input Bias Current, Each Biquad
SHDN Pin to 0V
SHDN Pin Steps from 0V
to V
+
SHDN Pin Steps from V
+
to 0V
–20
ELECTRICAL CHARACTERISTICS
range, otherwise specifications are at T
A
= 25
°
C. V
S
=
±
5V, outputs unloaded, SHDN pin to logic “l(fā)ow”, unless otherwise noted. AC
specs are for a single 2nd order section, R
IN
= R2 = 10.4k
±
0.1%, R
Q
= 9.09k
±
0.1%, f
O
= 175kHz.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
f
O
change from
±
5V to
±
2.375 supplies is –0.2% typical,
f
O
temperature coefficient magnitude, 25
°
C to 85
°
C, is
50ppm/
°
C typical.
As with the LTC1562, f
O
decreases with increasing temperature.
Note 3:
Tighter frequency tolerance is available, consult factory.
The
G
denotes specifications that apply over the full operating temperature
TYPICAL PERFOR U
f
O
Error vs Nominal f
O
(V
S
=
±
5V)
f
O
Error vs Nominal f
O
(V
S
=
±
2.5V)
NOMINAL f
O
(kHz)
100
Q
35
40
45
30
25
20
15
10
5
0
–5
260
1562-2 G03
140
180
220
300
240
120
160
200
280
T
A
= 70
°
C
T
A
= 25
°
C
R
IN
= R
Q
Q = 5
Q = 2.5
Q = 1
Q Error vs Nominal f
O
(V
S
=
±
5V)
NOMINAL f
O
(kHz)
120
f
O
0
1.0
0.5
2.0
1.5
3.0
2.5
1562-2 G01
–1.0
–1.5
–2.0
–2.5
–3.0
–0.5
160
200
240
280
260
140
180
220
Q = 5
Q = 2.5
Q = 1
T
A
= 25
°
C
R
IN
= R
Q
NOMINAL f
O
(kHz)
120
f
O
0
1.0
0.5
2.0
1.5
3.0
2.5
1562-2 G02
–1.0
–1.5
–2.0
–2.5
–3.0
–0.5
160
200
240
280
260
140
180
220
Q = 5
Q = 2.5
Q = 1
T
A
= 25
°
C
R
IN
= R
Q
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