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LT1204CSW#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
1
LT1204
4-Input Video Multiplexer
with 75MHz Current
Feedback Amplifier
S
F
EA
T
U
RE
D
U
ESCRIPTIO
The LT
®
1204 is a 4-input video multiplexer designed to
drive 75Ω cables and easily expand into larger routing
systems. Wide bandwidth, high slew rate, and low differ-
ential gain and phase make the LT1204 ideal for broadcast
quality signal routing. Channel separation and disable
isolation are greater than 90dB up to 10MHz. The channel-
to-channel output switching transient is only 40mV
P-P
,
with a 50ns duration, making the transition imperceptible
on high quality monitors.
A unique feature of the LT1204 is its ability to expand into
larger routing matrices. This is accomplished by a patent
pending circuit that bootstraps the feedback resistors in
the disable condition, raising the true output impedance of
the circuit. The effect of this feature is to eliminate cable
misterminations in large systems.
The large input and output signal levels supported by the
LT1204 when operated on ±15V supplies make it ideal for
general purpose analog signal selection and multiplexing.
A shutdown feature reduces the supply current to 1.5mA.
All Hostile Crosstalk
Surface Mount PCB Measurements
FREQUENCY (MHz)
1
–120
ALL HOSTILE CROSSTALK (dB)
–100
–80
–60
–40
10 100
1204 TA02
–20
V
S
= ±15V
V
IN 0
= GND
V
IN 1,2,3
= 0dBm
R
L
= 100Ω
■
0.1dB Gain Flatness > 30MHz
■
Channel Separation at 10MHz: 90dB
■
40mV Switching Transient, Input Referred
■
–3dB Bandwidth, A
V
= 2, R
L
= 150Ω: 75MHz
■
Channel-to-Channel Switching Time: 120ns
■
Easy to Expand for More Inputs
■
Large Input Range: ±6V
■
0.04% Differential Gain, R
L
= 150Ω
■
0.06° Differential Phase, R
L
= 150Ω
■
High Slew Rate: 1000V/µs
■
Output Swing, R
L
= 400Ω: ±13V
■
Wide Supply Range: ±5V to ±15V
U
S
A
O
PP
L
IC
AT
I
■
Broadcast Quality Video Multiplexing
■
Large Matrix Routing
■
Medical Imaging
■
Large Amplitude Signal Multiplexing
■
Programmable Gain Amplifiers
, LTC and LT are registered trademarks of Linear Technology Corporation.
U
A
O
PP
L
IC
AT
ITY
P
I
CA
L
–
+
CFA
V
IN0
V
IN0
75Ω
1
2
V
IN1
V
IN1
75Ω
3
4
V
IN2
V
IN2
75Ω
5
6
V
IN3
V
IN3
75Ω
7
8
+1
+1
+1
+1
V
O
16
14
13
12
11
10
15
9
LOGIC
V
+
V
–
FB
S/D
ENABLE
A1
A0
15V
–15V
R
F
1k
75Ω
R
G
1k
V
OUT
8.2k
–15V
LT1204
6.8k
GND
GND
GND
REF
1204 TA01
2
LT1204
A
U
G
W
A
W
U
W
ARB
S
O
LU
T
EXI T
I
S
Supply Voltage ..................................................... ±18V
– Input Current (Pin 13) .................................... ±15mA
+Input and Control/Logic Current (Note 1)........ ±50mA
Output Short-Circuit Duration (Note 2).........Continuous
Specified Temperature Range (Note 3)....... 0°C to 70°C
Operating Temperature Range............... –40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
Junction Temperature (Note 4)............................ 150°C
Lead Temperature (Soldering, 10 sec)..................300°C
T
JMAX
= 150°C, θ
JA
= 70°C/W
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1204CN*
1
2
3
4
5
6
7
8
TOP VIEW
N PACKAGE
16-LEAD PDIP
16
15
14
13
12
11
10
9
V
IN0
GND
V
IN1
GND
V
IN2
GND
V
IN3
REF
V
+
V
O
V
–
FB
SHDN
ENABLE
A1
A0
WU
U
PACKAGE
/
O
RDER I FOR ATIO
*See Note 3 *See Note 3
TOP VIEW
SW PACKAGE
16-LEAD PLASTIC SO
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
IN0
GND
V
IN1
GND
V
IN2
GND
V
IN3
REF
V
+
V
O
V
–
FB
SHDN
ENABLE
A1
A0
T
JMAX
= 150°C, θ
JA
= 90°C/W
Consult factory for Industrial and Military grade parts.
E
LECTR
IC
AL C CHARA TERIST
ICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage Any Positive Input, T
A
= 25°C514mV
● 16 mV
Offset Matching Between Any Positive Input, V
S
= ±15V ● 0.5 5 mV
Input Offset Voltage Drift Any Positive Input ● 40 µV/°C
I
IN
+
Positive Input Bias Current Any Positive Input, T
A
= 25°C38µA
● 10 µA
I
IN
–
Negative Input Bias Current T
A
= 25°C ±20 ±100 µA
● ±150 µA
e
n
Input Noise Voltage f = 1kHz, R
F
= 1k, R
G
= 10Ω, R
S
= 0Ω 7 nV/√Hz
+i
n
Noninverting Input Noise Current Density f = 1kHz 1.5 pA/√Hz
–i
n
Inverting Input Noise Current Density f = 1kHz 40 pA/√Hz
C
IN
Input Capacitance Input Selected 3.0 pF
Input Deselected 3.5 pF
C
OUT
Output Capacitance Disabled, Pin 11 Voltage = 0V 8 pF
R
IN
Positive Input Resistance, Any Positive Input V
S
= ±5V, V
IN
= –1.5V, 2V, T
A
= 25°C520 MΩ
V
S
= ±15V, V
IN
= ±5V ● 420 MΩ
0°C ≤ T
A
≤ 70°C, ±5V ≤ V
S
≤ ±15V, V
CM
= 0V, Pin 8 grounded and pulse tested unless otherwise noted.
LT1204CSW*
3
LT1204
E
LECTR
IC
AL C CHARA TERIST
ICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Voltage Range, Any Positive Input V
S
= ±5V, T
A
= 25°C 2.0 2.5 V
–1.5 –2.0 V
V
S
= ±15V ● ±5.0 ±6.0 V
V
S
= ±15V, Pin 8 Voltage = –5V ● 3.75 4.0 V
CMRR Common Mode Rejection Ratio V
S
= ±5V, V
CM
= –1.5V, 2V, T
A
= 25°C4855 dB
V
S
= ±15V, V
CM
= ±5V ● 48 58 dB
Negative Input Current V
S
= ±5V, V
CM
= –1.5V, 2V, T
A
= 25°C 0.05 1 µA/V
Common Mode Rejection V
S
= ±15V, V
CM
= ±5V ● 0.05 1 µA/V
PSRR Power Supply Rejection Ratio V
S
= ±4.5V to ±15V ● 60 76 dB
Negative Input Current Power Supply Rejection V
S
= ±4.5V to ±15V ● 0.5 5 µA/V
A
VOL
Large-Signal Voltage Gain V
S
= ±15V, V
OUT
= ±10V, R
L
= 1k ● 57 73 dB
V
S
= ±5V, V
OUT
= ±2V, R
L
= 150Ω ● 57 66 dB
R
OL
Transresistance V
S
= ±15V, V
OUT
= ±10V, R
L
= 1k ● 115 310 kΩ
∆V
O
/∆I
IN
–
V
S
= ±5V, V
OUT
= ±2V, R
L
= 150Ω ● 115 210 kΩ
V
OUT
Output Voltage Swing V
S
= ±15V, R
L
= 400Ω, T
A
= 25°C ±12 ±13.5 V
● ±10 V
V
S
= ±5V, R
L
= 150Ω, T
A
= 25°C ±3.0 ±3.7 V
● ±2.5 V
I
OUT
Output Current R
L
= 0Ω, T
A
= 25°C 35 55 125 mA
I
S
Supply Current (Note 5) Pin 11 = 5V ● 19 24 mA
Pin 11 = 0V
● 19 24 mA
Pin 12 = 0V
● 1.5 3.5 mA
Disabled Output Resistance V
S
= ±15V, Pin 11 = 0V, V
O
= ±5V,
R
F
= R
G
= 1k ● 14 25 kΩ
V
S
= ±15V, Pin 11 = 0V, V
O
= ±5V,
R
F
= 2k, R
G
= 222Ω ● 820 kΩ
0°C ≤ T
A
≤ 70°C, ±5V ≤ V
S
≤ ±15V, V
CM
= 0V, Pin 8 grounded and pulse tested unless otherwise noted.
0°C ≤ T
A
≤ 70°C, V
S
= ±15V, R
F
= 2k, R
G
= 220Ω, R
L
= 400Ω unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IL
Input Low Voltage Pins 9, 10, 11, 12 ● 0.8 V
V
IH
Input High Voltage Pins 9, 10, 11, 12 ● 2V
I
IL
Input Low Current Pins 9, 10 Voltage = 0V ● 1.5 6 µA
I
IH
Input High Current Pins 9, 10 Voltage = 5V ● 10 150 nA
Enable Low Input Current Pin 11 Voltage = 0V ● 4.5 15 µA
Enable High Input Current Pin 11 Voltage = 5V ● 200 300 µA
I
SHDN
Shutdown Input Current Pin 12 Voltage 0V ≤ V
SHDN
≤ 5V ● 20 80 µA
t
sel
Channel-to-Channel Select Time (Note 6) Pin 8 Voltage = –5V, T
A
= 25°C 120 240 ns
t
dis
Disable Time (Note 7) Pin 8 Voltage = –5V, T
A
= 25°C 40 100 ns
t
en
Enable Time (Note 8) Pin 8 Voltage = –5V, T
A
= 25°C 110 200 ns
t
SHDN
Shutdown Assert or Release Time (Note 9) Pin 8 Voltage = –5V, T
A
= 25°C 1.4 10 µs
DIGITAL I PUT CHARACTERISTICS
U
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LT1204CSW#PBF

Mfr. #:
Buy LT1204CSW#PBF
Manufacturer:
Analog Devices Inc.
Description:
Video Switch ICs 4-In Video Multxer w/ 75MHz C F Amp
Lifecycle:
New from this manufacturer.
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