lt6600cs8-5-trpbf Linear Technology Corporation, lt6600cs8-5-trpbf Datasheet - Page 7

• Manufacturer Part Number: lt6600cs8-5-trpbf
• Description: Very Low Noise, Differential Amplifier And 10mhz Lowpass Filter
• Manufacturer: Linear Technology Corporation

PI FU CTIO S
IN
be applied to either or both input pins through identical
external resistors, R
inputs to the differential outputs is 1580Ω/R
NC (Pin 2, 5, 11/NA): No Connection.
V
Voltage for the 2nd Filter Stage. Its value programs the
common mode voltage of the differential output of the
filter. This is a high impedance input, which can be driven
from an external voltage reference, or can be tied to V
on the PC board. V
ceramic capacitor unless it is connected to a ground
plane.
V
a single 3.3V or 5V supply (V
OCM
+
–
U
and V
and IN
(Pin 3/Pin 2): Is the DC Common Mode Reference
–
U
(Pins 4, 8, 9/Pins 3, 6): Power Supply Pins. For
+
(Pins 1, 12/Pins 1, 8): Input Pins. Signals can
OCM
U
IN
should be bypassed with a 0.01μF
. The DC gain from differential
(DFN/S8)
–
grounded) a quality 0.1μF
IN
.
MID
ceramic bypass capacitor is required from the positive
supply pin (V
bypass should be as close as possible to the IC. For dual
supply applications, bypass V
ground with a quality 0.1μF ceramic capacitor.
OUT
are the filter differential outputs. Each pin can drive a 100Ω
and/or 50pF load to AC ground.
V
mid-supply, see block diagram. For single supply opera-
tion the V
ceramic capacitor to V
can be bypassed or connected to a high quality DC ground.
A ground plane should be used. A poor ground will
increase noise and distortion. V
mon mode voltage of the 1st stage of the filter. It has a
5.5kΩ impedance, and it can be overridden with an exter-
nal low impedance voltage source.
MID
+
(Pin 10/Pin 7): The V
and OUT
MID
pin should be bypassed with a quality 0.01μF
+
–
) to the negative supply pin (V
(Pins 6, 7/Pins 4, 5): Output Pins. These
–
. For dual supply operation, V
MID
pin is internally biased at
MID
+
to ground and V
sets the output com-
LT6600-10
–
). The
6600fa
–
7
MID
to