參數(shù)資料
型號(hào)： LTC1564
廠商： Linear Technology Corporation
英文描述： 10kHz to 150kHz Digitally Controlled Antialiasing Filter and 4-Bit P.G.A
中文描述： 10kHz至150kHz的數(shù)字控制抗混疊濾波器和4位美國(guó)PGA
文件頁數(shù)： 3/12頁
文件大?。?/td> 227K
代理商： LTC1564
3
LTC1564
PARAMETER
Mute State Output Noise
Shutdown Supply Current
CONDITIONS
F = 0000, BW = 200kHz
V
S
=
±
1.35V, EN to V
+
V
S
=
±
1.35V, EN to V
+
V
S
=
±
2.375V, EN to V
+
V
S
=
±
2.375V, EN to V
+
V
S
=
±
5V, EN to V
+
(Note 4)
V
S
=
±
1.35V
V
S
=
±
2.375V
V
S
=
±
5V
V
S
=
±
1.35V
V
S
=
±
2.375V
V
S
=
±
5V
V
S
=
±
1.35V
V
S
=
±
5V
V
S
=
±
1.35V
V
S
=
±
5V
MIN
TYP
5.4
45
MAX
UNITS
μ
V
RMS
75
150
150
180
μ
A
μ
A
μ
A
μ
A
μ
A
V
V
V
V
V
V
μ
A
μ
A
μ
A
μ
A
G
100
G
175
Digital Input “High” Voltage
1.08
1.90
4.50
Digital Input “Low” Voltage
–1.08
–1.90
0.50
6
20
2
20
Digital Input Pull-Up or Pull-Down Current (Note 5)
(Digital Inputs Other than EN)
Digital Input Pull-Up Current (EN Input)
G
G
3.5
13
1
10
G
G
The
G
denotes specifications that apply over the full operating temperature
range, otherwise specifications are at T
A
= 25
°
C. V
S
=
±
2.375V, f
C
= 10kHz, gain = 1, R
L
= 10k, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
Response is tested in production at discrete frequencies f
IN
of 0.1,
0.5, 0.8 and 0.9 times f
C
.
Note 3:
Relative to gain at 0.1f
C
.
Note 4:
All digital inputs driven rail-to-rail. When driving digital inputs with
0V and 5V levels, the shutdown current will increase to 3.5mA (typ).
Note 5
: Each digital input includes a small positive or negative current
source to float the CMOS input to V
+
or V
–
potential if it is unconnected.
The table shows the current due to this source when the input is driven at
the supply voltage opposite from the float potential. Pins CS/HOLD, F3, F2,
F0 and G3 to G0 float to the V
–
voltage, pins RST, EN and F1 to the V
+
voltage. See “Floatable Digital Inputs” in Applications Information section.
TYPICAL PERFOR U
Overall Frequency Response
(Frequency Scales Normalized to f
C
)
f
IN
/f
C
–130
–70
–80
–90
–100
–110
–120
10
0
–10
–20
–30
–40
–50
–60
1564 G01
G
0.1
10
1
f
C
= 10kHz
f
C
= 150kHz
f
C
= 50kHz
V
= SINGLE 5V
UNITY GAIN
(G CODE 0000)
FREQUENCY (kHz)
5
–10
G
–5
0
5
6.25
7.5
8.75
10
1564 G02
11.25
12.5
–40
°
C, 25
°
C, 85
°
C
f
= 10kHz
SINGLE 5V SUPPLY
FREQUENCY (kHz)
50
–10
G
–5
0
85
°
C
5
62.5
75
87.5
100
1564 G03
112.5
125
f
C
= 100kHz
SINGLE 5V SUPPLY
–40
°
C
25
°
C
Roll-Offs Over Temperature
(f
C
= 10kHz)
Roll-Offs Over Temperature
(f
C
= 100kHz)
相關(guān)PDF資料
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