Datasheet

LT6557
7
6557fa
Overdriven Output Recovery Enable/Disable Response
Large-Signal Transient Response
EN (Pin 1): Enable Control Pin. The part is enabled when
this pin is pulled low. An internal pull-up resistor of 40k
will turn the part off if this pin is unconnected.
GND (Pin 2): Ground Reference for Enable Pin (Pin 1)
and Bias Control Voltage Pin (Pin 16). This pin must be
connected externally to ground.
IN R (Pin 3): Red Channel Input. This pin has a nominal
impedance of 200kΩ with input bias circuit inactive,
Pin 16 open.
GND R (Pin 4): Ground of Red Channel Amplifi er. This pin
is not internally connected to other ground pins and must
be connected externally to ground.
IN G (Pin 5): Green Channel Input. This pin has a nomi-
nal impedance of 200kΩ with input bias circuit inactive,
Pin 16 open.
GND G (Pin 6): Ground of Green Channel Amplifi er. This
pin is not internally connected to other ground pins and
must be connected externally to ground.
IN B (Pin 7): Blue Channel Input. This pin has a nominal
impedance of 200kΩ with input bias circuit inactive,
Pin 16 open.
GND B (Pin 8): Ground of Blue Channel Amplifi er. This
pin is not internally connected to other ground pins and
must be connected externally to ground.
TYPICAL PERFORMANCE CHARACTERISTICS
TIME (ns)
0
V
IN
= 0.5V/DIV, V
OUT
= 1V/DIV
3
4
5
200
6557 G28
2
1
0
25 50 75
100 125
150 175 225
250
V
IN
V
OUT
V
S
= 5V
V
IN
= 2.4V
P-P
R
L
= 150
TIME ( s)
0
0
–1
VOLTAGE (V)
1
3
4
5
0.2 1.0 1.4
6557 G29
2
6
0.8 1.8 2.22.0
0.4 0.6 1.2 1.6
V
EN(DISABLE)
V
EN(ENABLE)
V
OUT
V
S
= 5V
V
OUT
= 2V
P-P
AC COUPLED
R
L
= 150
Small-Signal Transient Response
TIME (ns)
0
OUTPUT (V)
2.60
24
6557 G31
2.45
48
12
16 20
2
610
14
18 22
2.65
V
S
= 5V
V
IN
= 50mV
P-P
R
L
= 150
2.55
2.50
PIN FUNCTIONS