Datasheet

4
LTC1264
1264fb
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
CLOCK FREQUENCY (MHz)
2.0
TYPICAL BANDPASS GAIN ERROR (dB)
5
4
3
2
1
0
3.6
1264 G04
2.4
2.8
3.2
4.0
MODE 1
Q = 2
T
A
= 25°C
V
S
= ±5V
V
S
= ±7.5V
Typical Bandpass Gain Error
vs Clock Frequency
Typical Bandpass Gain Error
vs Clock Frequency
Typical Bandpass Gain Error
vs Clock Frequency
Noise vs R2/R4 Ratio
CLOCK FREQUENCY (MHz)
1.3
TYPICAL BNADPASS GAIN ERROR (dB)
5
4
3
2
1
0
1.7
1264 G06
1.4
1,5
1.6
1.8
MODE 1
V
S
= SINGLE 5V
TA = 25°C
1.9 2.0
Q = 4
Q = 2
Ratio (f
CLK
/f
O
) vs
Clock Frequency
CLOCK FREQUENCY (MHz)
1
20.5
20.4
20.3
20.2
20.1
20.0
19.9
19.8
19.7
19.6
19.5
4
1264 G11
23
f
CLK
/f
O
Q = 2
Q = 10
BANDPASS OUT
MODE 1
V
S
= ±7.5V
Q = 4
RESISTOR RATIO (R2/R4)
0
NOISE (µV
RMS
)
600
500
400
300
200
100
0
0.2 0.4 0.6 0.8
1264 G12
1.0
MODE 3
V
S
= ±7.5V
Q = 2
f
fR
R
O
CLK
=
20
2
4
Power Supply Current
vs Supply Voltage
POWER SUPPLY VOLTAGE (V
+
– V
–
)
0
POWER SUPPLY CURRENT (mA)
48
44
40
36
32
28
24
20
16
12
8
4
0
2 6 12 16
1264 G14
204 8 10 14 18 22 24
–55°C
25°C
125°C
CLOCK FREQUENCY (MHz)
2.0
TYPICAL BANDPASS GAIN ERROR (dB)
5
4
3
2
1
0
3.6
1264 G05
2.4
2.8
3.2
4.0
MODE 1
Q = 4
T
A
= 25°C
V
S
= ±5V
V
S
= ±7.5V
CLOCK FREQUENCY (MHz)
1
5
4
3
2
1
0
4
1264 G15
23
TYPICAL BANDPASS GAIN ERROR (dB)
MODE 3
Q = 4
T
A
= 25°C
V
S
= SINGLE 5V
V
S
= ±5V
V
S
= ±7.5V
Typical Bandpass Gain Error
vs Clock Frequency