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PDF LT6554 Data sheet ( Hoja de datos )
| Número de pieza | LT6554 | |
| Descripción | 650MHZ GAIN OF 1 TRIPLE VIDEO MULTIPLEXER | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LT6554 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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LT6554www.DataSheet4U.com
650MHz Gain of 1
Triple Video Buffer
FEATURES
■ 650MHz –3dB Small Signal Bandwidth
■ 400MHz –3dB 2VP-P Large Signal Bandwidth
■ 100MHz ±0.1dB Bandwidth
■ High Slew Rate: 2500V/µs
■ Fixed Gain of 1 Requires No External Resistors
■ 90dB Channel Separation at 10MHz
■ 60dB Channel Separation at 100MHz
■ –82dBc 2nd Harmonic Distortion at 10MHz, 2VP-P
■ –96dBc 3rd Harmonic Distortion at 10MHz, 2VP-P
■ Low Supply Current: 8mA per Amplifier
■ 6ns 0.1% Settling Time for 2V Step
■ TTL Compatible Enable: ISS ≤ 100µA When Disabled
■ Differential Gain of 0.022%, Differential
Phase of 0.006°
■ Wide Supply Range: ±2.25V (4.5V) to ±6V (12V)
■ Available in 16-Lead SSOP Package
U
APPLICATIO S
■ RGB Buffers
■ A/D Drivers
■ LCD Projectors
DESCRIPTIO
The LT®6554 is a high-speed triple video buffer with an
internally fixed gain of 1. The individual buffers are opti-
mized for performance with a 1k load and feature a
2VP–P full signal bandwidth of 400MHz, making them ideal
for driving very high-resolution video signals. Separate
power supply pins for each amplifier boost channel sepa-
ration to 90dB, allowing the LT6554 to excel in many high-
speed applications.
While the performance of the LT6554 is optimized for dual
supply operation, it can also be used on a single supply as
low as 4.5V. Using dual 5V supplies, each amplifier draws
only 8mA. When disabled, the amplifiers draw less than
100µA and the outputs become high impedance. Further-
more, the amplifiers are capable of turning on in less than
50ns, making them suitable for multiplexing and portable
applications.
The LT6554 is manufactured on Linear Technology’s
proprietary low voltage complementary bipolar process
and is available in the 16-lead SSOP package that fits in the
same PCB area as an SO-8 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
Triple Video Buffer and A/D Driver
5V
1 16
2 LT6554 15
3
RIN
4
5
GIN
6
7
BIN
8
–5V
+
–
480Ω
480Ω
–
+
480Ω
–
+
14
13
–5V
1k
12
11
5V
1k
10
9 –5V
1k
6554 TA01a
Large Signal Transient Response
1.5 VOUT = 2VP–P
VS = ±5V
1.0 RL = 1k
TA = 25°C
0.5
0
–0.5
–1.0
–1.5
0 2 4 6 8 10 12 14 16 18 20
TIME (ns)
6554 TA01b
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1
1 page  
TYPICAL PERFOR A CE CHARACTERISTICS
LT6554www.DataSheet4U.com
Input Noise Spectral Density
1000
VS = ±5V
TA = 25°C
100 en
in
10
Input Impedance vs Frequency
1000
VS = ±5V
VIN = 0V
TA = 25°C
100
10
1
1
0.001
0.01 0.1
1
FREQUENCY (kHz)
10 100
6554 G10
0.1
0.01
0.1 1 10 100
FREQUENCY (MHz)
1000
6554 G11
PSRR vs Frequency
70
60 ±PSRR
50 +PSRR
–PSRR
40
VS = ±5V
TA = 25°C
30
20
10
0
0.001
0.01 0.1
1
FREQUENCY (MHz)
10 100
6554 G12
Frequency Response
3
VS = ±5V
2 RL = 1k
CL = 1.5pF
1 TA = 25°C
0
VOUT = 200mVP-P
–1 VOUT = 2VP-P
–2
VOUT = 4VP-P
–3
–4
–5
–6
0.1
1 10 100
FREQUENCY (MHz)
1000
6554 G13
Frequency Response with
Capacitive Loads
12
VS = ±5V
10 VOUT = 200mVP-P
RL = 1k
8 TA = 25°C
6
CL = 12pF
CL = 9pF
4 CL = 6.8pF
2 CL = 3.3pF
0
–2 CL = 1.5pF
–4
–6
0.1
1 10 100
FREQUENCY (MHz)
1000
6554 G16
Gain Flatness vs Frequency
0.5 VS = ±5V
0.4 VOUT = 200mVP-P
0.3
RL = 1k
CL = 1.5pF
0.2 TA = 25°C
TYPICAL PART
0.1
R-CHANNEL
0
– 0.1
– 0.2
G-CHANNEL
B-CHANNEL
– 0.3
– 0.4
– 0.5
0.1
1 10 100
FREQUENCY (MHz)
1000
6554 G14
Harmonic Distortion vs Frequency
0
–10
VS = ±5V
VOUT = 2VP-P
–20 RL = 1k
–30 TA = 25°C
–40
–50
–60
–70
–80 HD2
–90
–100
HD3
–110
–120
0.01
0.1 1
10
FREQUENCY (MHz)
100
6554 G17
Crosstalk vs Frequency
0
VS = ±5V
VOUT = 2VP-P
– 20 RL = 1k
TA = 25°C
– 40
ALL-
HOSTILE
– 60
– 80
– 100
WORST
ADJACENT
– 120
0.1
1 10 100
FREQUENCY (MHz)
1000
6554 G15
Output Impedance vs Frequency
100000
10000
VS = ±5V
RL = 1k
TA = 25°C
1000
100
DISABLED
VEN = 4V
10
ENABLED
VEN = 0.4V
1
0.1
0.01
0.1 1 10 100
FREQUENCY (MHz)
1000
6554 G18
6554fa
5
5 Page 
WW
SI PLIFIED SCHE ATIC
V+
BIAS
46k
1k
EN
TO OTHER
AMPLIFIERS
150Ω
IN
V+
V–
DGND
V–
LT6554w w w . D a t a S h e e t 4 U
V+
480Ω
OUT
V–
6554 SS
PACKAGE DESCRIPTIO
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.045 ±.005
.189 – .196*
(4.801 – 4.978)
16 15 14 13 12 11 10 9
.009
(0.229)
REF
.254 MIN
.150 – .165
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
.0165 ± .0015
.0250 TYP
RECOMMENDED SOLDER PAD LAYOUT
.007 – .0098
(0.178 – 0.249)
.015 ± .004
(0.38 ± 0.10)
×
45°
0° – 8° TYP
1 234 5678
.053 – .068
(1.351 – 1.727)
.004 – .0098
(0.102 – 0.249)
.016 – .050
(0.406 – 1.270)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2.
DIMENSIONS
ARE
IN
INCHES
(MILLIMETERS)
3. DRAWING NOT TO SCALE
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
.008 – .012
(0.203 – 0.305)
.0250
(0.635)
BSC
GN16 (SSOP) 0502
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LT6554.PDF ] | |
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