LT6554
3
6554fa
LSBW Large Signal Bandwidth V
OUT
= 2V
P-P
(Note 7) 270 400 MHz
V
OUT
= 4V
P-P
(Note 7) 200 MHz
All-Hostile Crosstalk f = 10MHz, V
OUT
= 2V
P-P
–90 dB
f = 100MHz, V
OUT
= 2V
P-P
–60 dB
t
S
Settling Time 0.1% of V
FINAL
, V
STEP
= 2V 6 ns
t
R
,
t
F
Small-Signal Rise and Fall Time 10% to 90%, V
OUT
= 200mV
P-P
550 ps
dG Differential Gain (Note 8) 0.022 %
dP Differential Phase (Note 8) 0.006 Deg
HD2 2nd Harmonic Distortion f = 10MHz, V
OUT
= 2V
P-P
–82 dBc
HD3 3rd Harmonic Distortion f = 10MHz, V
OUT
= 2V
P-P
–96 dBc
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= ±5V, R
L
= 1k, C
L
= 1.5pF, V
EN
= 0.4V, V
AGND
, V
DGND
= 0V.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: This parameter is guaranteed to meet specified performance
through design and characterization. It is not production tested.
Note 3: As long as output current and junction temperature are kept below
the Absolute Maximum Ratings, no damage to the part will occur.
Depending on the supply voltage, a heat sink may be required.
Note 4: The LT6554C is guaranteed functional over the operating
temperature range of –40°C to 85°C.
Note 5: The LT6554C is guaranteed to meet specified performance from
0°C to 70°C. The LT6554C is designed, characterized and expected to
meet specified performance from –40°C and 85°C but is not tested or QA
sampled at these temperatures. The LT6554I is guaranteed to meet
specified performance from –40°C to 85°C.
Note 6: The two supply voltage settings for power supply rejection are
shifted from the typical ±V
S
points for ease of testing. The first
measurement is taken at V
+
= 3V, V
–
= –1.5V to provide the required 3V
headroom for the enable circuitry to function with EN, DGND, AGND and
all inputs connected to 0V. The second measurement is taken at V
+
= 8V,
V
–
= –4V.
Note 7: Large signal bandwidth is calculated from the slew rate:
LSBW = SR/(π • V
P-P
)
Note 8: Differential gain and phase are measured using a Tektronix
TSG120YC/NTSC signal generator and a Tektronix 1780R video
measurement set. The resolution of this equipment is better than 0.05%
and 0.05°. Nine identical amplifier stages were cascaded giving an
effective resolution of better than 0.0056% and 0.0056°.
Note 9: Slew rate is 100% production tested on the G channel. Slew rate
of the R and B channels is guaranteed through design and
characterization.
