Datasheet

LT6557
3
6557fa
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
S
= 5V, R
L
= 150Ω to V
S
/2, V
EN
= 0.4V, R
BCV
= open, unless
otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
A
V
ERR Gain Error V
IN
= 0.75V to 1.75V
●
±0.5
±0.5
±2.5
±3.0
%
%
A
V
MATCH Gain Match Between Channels V
IN
= 0.75V to 1.75V
●
±0.4
±0.4
±2.75
±3.25
%
%
V
IN(DC)
Input Voltage Bias R
BCV
= 348Ω
●
1.0
0.8
1.25
1.10
1.5
1.7
V
V
PSRR Power Supply Rejection Ratio V
S
= 4V to 6V, V
IN
= 1.25V
●
42
38
50
47
dB
dB
V
OL
Output Voltage Swing Low
●
0.8
0.9
0.9
1.0
V
V
V
OH
Output Voltage Swing High
●
4.1
4.0
4.2
4.1
V
V
I
S
Supply Current per Amplifi er V
EN
= 0.4V, R
L
= ∞, Includes I
S
of V
+
(Pin 15)
●
22.5
25.0
25
29
mA
mA
Total Supply Current (Disabled) V
EN
= Open, R
L
= ∞
●
10
10
450
1000
µA
µA
I
EN
Enable Pin Current V
EN
= 0.4V
●
–250
–300
–125
–150
µA
µA
I
SC
Short-Circuit Current
●
±70
±40
±100
±90
mA
mA
SR Slew Rate V
OUT
= 1.25V to 3.75V (Note 5) 1400 2200 V/µs
–3dB BW –3dB Bandwidth V
OUT
= 2V
P-P
400 MHz
V
OUT
= 0.2V
P-P
500 MHz
0.1dB BW Gain Flatness ±0.1dB Bandwidth V
OUT
= 2V
P-P
120 MHz
FPBW Full Power Bandwidth V
OUT
= 2V
P-P
(Note 6) 220 350 MHz
XTalk All Hostile Crosstalk f = 10MHz, V
OUT
= 2V
P-P
f = 100MHz, V
OUT
= 2V
P-P
–80
–55
dB
dB
t
S
Settling Time To 1%, V
OUT
= 1.5V to 3.5V
To 0.1%
4
7
ns
ns
t
r
, t
f
Rise Time, Fall Time 10% to 90%, V
OUT
= 1.5V to 3.5V 875 ps
ΔG Differential Gain NTSC Signal 0.02 %
ΔΦ
Differential Phase NTSC Signal 0.05 Deg
HD2 2nd Harmonic Distortion f = 10MHz, V
OUT
= 2V
P-P
–68 dBc
HD3 3rd Harmonic Distortion f = 10MHz, V
OUT
= 2V
P-P
–75 dBc
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: A heat sink may be required to keep the junction temperature
below the Absolute Maximum Rating.
Note 3: The LT6557C is guaranteed functional over the temperature range
of –40°C and 85°C.
Note 4: The LT6557C is guaranteed to meet specifi ed performance from
0°C to 70°C. The LT6557C is designed, characterized and expected to
meet specifi ed performance from –40°C to 85°C but is not tested or
QA sampled at these temperatures.The LT6557I is guaranteed to meet
specifi ed performance from –40°C to 85°C.
Note 5: Slew rate is 100% production tested on the R channel and
measured on the rising edge of the output signal. The slew rate of the
falling edge and of the G and B channels is guaranteed through design and
characterization.
Note 6: Large-signal bandwidth is calculated from slew rate:
FPBW = SR/(π • V
P-P
)
ELECTRICAL CHARACTERISTICS