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LT1205CS#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
1
LT1203/LT1205
150MHz Video Multiplexers
■
–3dB Bandwidth: 150MHz
■
0.1dB Gain Flatness: 30MHz
■
Channel-to-Channel Switching Time: 25ns
■
Turn-On/Turn-Off Time: 25ns
■
High Slew Rate: 300V/µs
■
Disabled Output Impedance: 10MΩ
■
50mV Switching Transient
■
Channel Separation at 10MHz: >90dB
■
Differential Gain: 0.02%
■
Differential Phase: 0.02°
■
Wide Supply Range: ±5V to ±15V
■
Output Short-Circuit Protected
■
Push-Pull Output
S
F
EA
T
U
RE
D
U
ESCRIPTIO
The LT1203 is a wideband 2-input video multiplexer
designed for pixel switching and broadcast quality rout-
ing. The LT1205 is a dual version that is configured as a
4-input, 2-output multiplexer.
These multiplexers act as SPDT video switches with 10ns
transition times at toggle rates up to 30MHz. The –3dB
bandwidth is 150MHz and 0.1dB gain flatness is 30MHz.
Many parts can be tied together at their outputs by using
the enable feature which reduces the power dissipation
and raises the output impedance to 10MΩ. Output capaci-
tance when disabled is only 3pF and the LT1203 peaks less
than 3dB into a 50pF load. Channel crosstalk and disable
isolation are greater than 90dB up to 10MHz. An on-chip
buffer interfaces to fast TTL or CMOS logic. Switching
transients are only 50mV with a 25ns duration. The
LT1203 and LT1205 outputs are protected against shorts
to ground.
The LT1203/LT1205 are manufactured using Linear
Technology’s proprietary complementary bipolar process.
The LT1203 is available in both the 8-lead PDIP and SO
package while the LT1205 is available in the 16-lead
narrow body SO package.
U
A
O
PP
L
IC
AT
ITY
P
I
CA
L
+1
+1
+1
+1
LT1205
LOGIC
V
+
LOGIC
V
OUT
RED
V
OUT
GREEN
V
OUT
BLUE
LT1203 • TA01
EN
RED 1
CHANNEL SELECT
RED 2
GREEN 1
GREEN 2
BLUE 1
BLUE 2
V
–
V
–
V
–
EN
V
+
+1
+1
LT1203
LOGIC
EN
V
+
High Speed RGB MUX
Large-Signal Response
U
S
A
O
PP
L
IC
AT
I
■
Broadcast Quality Video Multiplexing
■
Picture-in-Picture Switching
■
HDTV
■
Computer Graphics
■
Title Generation
■
Video Crosspoint Matrices
■
Video Routers
2
LT1203/LT1205
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Supply Voltage ...................................................... ±18V
Signal Input Current (Note 1) ............................ ±20mA
Logic Input Current (Note 2).............................. ±50mA
Output Short-Circuit Duration (Note 3)........ Continuous
Specified Temperature Range (Note 4)....... 0°C to 70°C
Operating Temperature Range ............... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Junction Temperature (Note 5)............................ 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
ORDER PART
NUMBER
LT1203CN8*
LT1203CS8*
S8 PART MARKING
1203
*See Note 4
Consult factory for Industrial and Military grade parts.
ORDER PART
NUMBER
LT1205CS*
T
JMAX
= 150°C, θ
JA
= 100°C/W
TOP VIEW
S PACKAGE
16-LEAD PLASTIC SOIC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
INO
GND
V
IN1
V
–
V
IN2
GND
V
IN3
V
–
V
+
V
OUT1
EN1
LOGIC 1
V
+
V
OUT2
EN2
LOGIC 2
1
2
3
4
8
7
6
5
TOP VIEW
V
IN0
GND
V
IN1
V
–
V
+
V
OUT
EN
LOGIC
N8 PACKAGE
8-LEAD PLASTIC DIP
S8 PACKAGE
8-LEAD PLASTIC SOIC
T
JMAX
= 150°C, θ
JA
= 100°C/W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/W (S)
WU
U
PACKAGE
/
O
RDER I FOR ATIO
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Output Offset Voltage Any Input Selected ● 10 30 mV
Output Offset Matching Between Outputs ● 0.3 5 mV
∆V
OS
/∆T Output Offset Drift ● 40 µV/°C
I
IN
Input Current ● 0.6 5 µA
R
IN
Input Resistance V
S
= ±5V, V
IN
= ±2V ● 15 MΩ
V
S
= ±15V, V
IN
= ±2V ● 25 MΩ
C
IN
Input Capacitance Input Selected 2.6 pF
Input Deselected 2.6 pF
C
OUT
Disabled Output Capacitance EN Pin Voltage ≤ 0.8V 2.8 pF
V
IN
Input Voltage (Note 1) V
S
= ±5V ● ±2 ±2.8 V
V
S
= ±15V ● ±2 ±3.0 V
PSRR Power Supply Rejection Ratio V
S
= ±4.5 to ±15V ● 60 70 dB
Gain Error V
S
= ±15V, V
IN
= ±2V, R
L
= 1k ● 24 %
V
S
= ±15V, V
IN
= ±2V, R
L
= 400Ω ● 610 %
V
S
= ±5V, V
IN
= ±2V, R
L
= 1k ● 36 %
E
LECTR
IC
AL C CHARA TERIST
ICS
0°C ≤ T
A
≤ 70°C, ±5V ≤ V
S
≤ ±15V, R
L
= 1k, pulse tested, EN pin open or high, unless otherwise noted.
3
LT1203/LT1205
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SR Slew Rate (Note 6) 180 300 V/µs
FPBW Full Power Bandwidth (Note 7) V
OUT
= 2V
P-P
28.6 47.7 MHz
t
SEL
Channel-to-Channel Select Time (Note 8) R
L
= 10k 25 35 ns
Enable Time (Note 9) R
L
= 1k 25 35 ns
Disable Time (Note 9) R
L
= 1k 20 35 ns
t
r
, t
f
Small-Signal Rise and Fall Time V
OUT
= 250mV
P-P
, 10% to 90% 2.6 ns
Propagation Delay V
OUT
= 250mV
P-P
2.9 ns
Overshoot V
OUT
= 250mV
P-P
5%
Crosstalk (Note 10) R
S
= 10Ω 90 dB
Chip Disabled Crosstalk (Note 10) R
L
= 10Ω, EN Pin Voltage ≤ 0.8V 110 dB
Channel Select Output Transient All V
IN
= 0V 50 mV
P-P
t
S
Settling Time 1%, V
OUT
= 1V 30 ns
Differential Gain (Note 11) V
S
= ±15V, R
L
= 10k 0.02 %
Differential Phase (Note 11) V
S
= ±15V, R
L
= 10k 0.02 DEG
Insertion Loss R
L
= 100k, C
L
= 30pF, V
OUT
= 500mV
P-P
, f = 1MHz 0.02 dB
E
LECTR
IC
AL C CHARA TERIST
ICS
0°C ≤ T
A
≤ 70°C, ±5V ≤ V
S
≤ ±15V, R
L
= 1k, pulse tested, EN pin open or high, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OUT
Output Voltage V
S
= ±15V, V
IN
= ±2V, R
L
= 400Ω ● ±1.8 ±1.90 V
V
S
= ±5V, V
IN
= ±2V, R
L
= 1k ● ±1.8 ±1.94 V
Overload Swing (Note 1) V
S
= ±15V, V
IN
= ±5V ● ±0.9 ±1.5 V
V
S
= ±5V, V
IN
= ±5V ● ±0.9 ±1.5 V
I
OUT
Output Current V
S
= ±15V, V
IN
= ±2V, R
L
= 400Ω ● ±4.5 ±4.75 mA
V
S
= ±5V, V
IN
= ±2V, R
L
= 1k ● ±1.8 ±2.00 mA
R
OUT
Enabled Output Resistance EN Pin Voltage = 2V, V
OUT
= ±2V, V
S
= ±15V ● 20 42 Ω
Disabled Output Resistance EN Pin Voltage = 0.5V, V
OUT
= ±2V, V
S
= ±15V ● 110 MΩ
I
S
Supply Current (LT1203) EN Pin Voltage = 2V ● 10.0 14 mA
EN Pin Voltage = 0.5V
● 5.8 8 mA
Supply Current (LT1205) EN Pin Voltage = 2V ● 20.0 28 mA
EN Pin Voltage = 0.5V
● 11.6 16 mA
V
IL
Logic Low Logic Pin ● 0.8 V
V
IH
Logic High Logic Pin ● 2V
Enable Low EN Pin ● 0.5 V
Enable High EN Pin ● 2V
I
IL
Digital Input Current Low LT1203 Pin 5, LT1205 Pins 9, 13 = 0V ● 1.5 6.5 µA
I
IH
Digital Input Current High LT1203 Pin 5, LT1205 Pins 9, 13 = 5V ● 10 200 nA
I
EN
Enable Pin Current LT1203 Pin 6, LT1205 Pins 10, 14 ● 20 80 µA
CCHARA TERIST
ICS
AC
T
A
= 25°C, V
S
= ±15V, R
L
= 1k, EN pin open or high, unless otherwise noted.
The ● denotes specifications which apply over the specified
temperature range.
Note 1: The analog inputs (pins 1, 3 for the LT1203, pins 1, 3, 5, 7 for the
LT1205) are protected against ESD and overvoltage with internal SCRs.
For inputs ≤±2.8V the SCR will not fire. Voltages above 2.8V will fire the
SCR and the DC current should be limited to 20mA. To turn off the SCR
the pin voltage must be reduced to less than 1V or the current reduced to
less than 600µA.
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LT1205CS#TRPBF

Mfr. #:
Buy LT1205CS#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Video Switch ICs 150MHz Video Multxers
Lifecycle:
New from this manufacturer.
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