LTC1565-31 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1565-31 Datasheet PDF : 12 Pages
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LTC1565-31
TYPICAL PERFORMANCE CHARACTERISTICS
Passband Gain vs Frequency
Over Temperature
0.5
VS = 5V
0.4
0.3
0.2
–40°C
0.1
0
85°C
25°C
–0.1
–0.2
–0.3
–0.4
–0.5
25k
100k
400k
FREQUENCY (Hz)
1565 G03
Common Mode Rejection Ratio
110
VIN = 1VP-P
VS = 5V
100 TA = 25°C
90
80
70
60
50
103
104
105
106
FREQUENCY (Hz)
107
1565 G06
Stopband Gain vs Frequency
–40
–50
–60
–70
VS = 5V
–80
VS = ±5V
–90
1.5
1.8 2.1 2.4 2.7 3.0
FREQUENCY (MHz)
1565 G04
Power Supply Rejection Ratio
80
VIN = 200mVP-P
VS = 5V
70 TA = 25°C
60
50
40
30
103
104
105
106
FREQUENCY (Hz)
107
1565 G07
Stopband Gain vs Frequency
Over Temperature
–40
VS = 5V
–50
–40°C
–60
25°C
85°C
–70
–80
–90
1.5
1.8 2.1 2.4 2.7 3.0
FREQUENCY (MHz)
1565 G05
Supply Current vs Temperature
26
VS = ±5V
25
VS = 5V
24
23
–50 –30
–10 10 30 50
TEMPERATURE (°C)
70 90
1565 G08
PIN FUNCTIONS
+IN, –IN (Pins 1, 2): Input Pins. Signals can be applied
to either or both input pins. The typical DC gain from dif-
ferential inputs (Pin 1 to Pin 2) to the differential outputs
(Pin 8 to Pin 7) is 1.0V/V. The input range is described in
the Applications Information section.
GND (Pin 3): Ground. The ground pin is the reference
voltage for the filter and is internally biased to one-half
the total power supply voltage of the filter, maximizing the
dynamic range of the filter. For single supply operation,
the ground pin should be bypassed with a quality 0.1μF
ceramic capacitor to Pin 4. For dual supply operation,
connect Pin 3 to a high quality DC ground. A ground
plane should be used. A poor ground will increase noise
and distortion.
The impedance seen at Pin 3 is 2.5kΩ in normal mode. In
shutdown, the pin is internally biased to the same levels
as normal mode. The impedance in shutdown mode
is typically 500kΩ but varies with supply voltage and
temperature.
156531fa
4
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