LTC6605-7
8
66057f
PIN FUNCTIONS
+IN4 A, –IN4 A, +IN4 B, –IN4 B (Pins 1, 5, 7, 11): Inputs
to Trimmed 400Ω Resistors. Can accept an input signal,
be fl oated, tied to an output pin, or connected to external
components.
+IN1 A, –IN1 A, +IN1 B, –IN1 B (Pins 2, 4, 8, 10): Inputs
to Trimmed 100Ω Resistors. Can accept an input signal,
be fl oated, tied to an output pin, or connected to external
components.
BIAS A, BIAS B (Pins 3, 9): Three-State Input to Select
Amplifi er Power Consumption. Drive low for shutdown,
drive high for full power, leave fl oating for medium power.
BIAS presents an input resistance of approximately 150k
to a voltage 1.15V above V
–
.
V
–
(Pins 6, 14, 17, 20): Negative Supply. All V
–
pins
should be connected to the same voltage, either a ground
plane or a negative supply rail.
V
OCMA
, V
OCMB
(Pins 19, 13): The voltage applied to these
pins sets the output common mode voltage of each fi lter
channel. If left fl oating, V
OCM
self-biases to a voltage
midway between V
+
and V
–
.
V
+
A, V
+
B (Pins 21, 15): Positive Supply for Filter Channel
A and B, Respectively. These are not connected to each
other internally.
–OUT A, +OUT A, –OUT B, +OUT B (Pins 22, 18, 16, 12):
Differential Output Pins.
Exposed Pad (Pin 23): Always tie the underlying Exposed
Pad to V
–
. If split supplies are used, do not tie the pad
to ground.
