LT1193
Video Difference
Amplifier
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Differential or Single-Ended Gain Block (Adjustable)
–3dB Bandwidth, A
V
=
±2:
80MHz
Slew Rate: 500V/µs
Low Cost
Output Current:
±50mA
Settling Time: 180ns to 0.1%
CMRR at 10MHz: > 40dB
Differential Gain Error: 0.2%
Differential Phase Error: 0.08°
Single 5V Operation
Drives Cables Directly
Output Shutdown
The LT
®
1193 is a video difference amplifier optimized for
operation on
±5V
and a single 5V supply. This versatile
amplifier features uncommitted high input impedance (+)
and (–) inputs, and can be used in differential or single-
ended configurations. Additionally, a second set of inputs
give gain adjustment and DC control to the differential
amplifier.
The LT1193’s high slew rate, 500V/µs, wide bandwidth,
80MHz, and
±50mA
output current make it ideal for
driving cables directly. The shutdown feature reduces the
power dissipation to a mere 15mW and allows multiple
amplifiers to drive the same cable.
The LT1193 is available in 8-pin PDIP and SO packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Line Receivers
Video Signal Processing
Cable Drivers
Oscillators
Tape and Disc Drive Systems
TYPICAL APPLICATIO
Cable Sense Amplifier for Loop Through Connections with DC Adjust
V
IN
5V
3
CABLE
V
DC
2
1
8
+
–
+
–
7
LT1193
4
–5V
300Ω
LT1193 • TA01
6
75Ω
V
OUT
75Ω
300Ω
U
1193fb
U
U
1
LT1193
ABSOLUTE
(Note 1)
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW
+/REF 1
–IN 2
+IN 3
V
–
4
N8 PACKAGE
8-LEAD PDIP
8
7
6
5
–/FB
V
+
OUT
SHDN
Total Supply Voltage (V
+
to V
–
) .............................. 18V
Differential Input Voltage ........................................
±
6V
Input Voltage ..........................................................
±
V
S
Output Short-Circuit Duration (Note 2) ......... Continuous
Operating Temperature Range
LT1193M
(OBSOLETE) ................
– 55°C to 125°C
LT1193C .................................................. 0°C to 70°C
LT1193I ...............................................–40°C to 85°C
Maximum Temperature ........................................ 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
LT1193CN8
LT1193CS8
LT1193IS8
S8 PART MARKING
1193
1193I
LT1193MJ8
LT1193CJ8
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W (N8)
T
JMAX
= 150°C,
θ
JA
= 150°C/W (S8)
J8 PACKAGE 8-LEAD CERDIP
T
JMAX
= 150°C,
θ
JA
= 100°C/W
OBSOLETE PACKAGE
Consider the N8 or S8 Packages for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
V
S
=
±5V,
V
REF
= 0V, R
FB1
= 900Ω from Pins 6 to 8, R
FB2
= 100Ω from Pin 8
to ground, R
L
= R
FB1
+ R
FB2
= 1k (Note 3), T
A
= 25°C, C
L
≤
10pF, Pin 5 open circuit, unless otherwise noted.
SYMBOL
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
V
IN(LIM)
CMRR
PSRR
V
OUT
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance
Input Capacitance
Input Voltage Limit
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
CONDITIONS
Both Inputs (Note 4) All Packages
Either Input
Either Input
f
O
= 10kHz
f
O
= 10kHz
Either Input
Either Input
(Note 5)
V
CM
= – 2.5V to 3.5V
V
S
=
±2.375V
to
±8V
V
S
=
±5V,
R
L
= 1k
V
S
=
±8V,
R
L
= 1k
V
S
=
±8V,
R
L
= 100Ω
V
O
=
±3V,
R
L
= 1k
R
L
= 100Ω
V
O
=
±2V,
R
L
= 300Ω (Notes 6, 11)
V
O
= 6V
P-P
(Note 7)
A
V
= 50, V
O
=
±1.5V,
20% to 80% (Note 11)
R
L
= 1k, V
O
=
±125mV,
50% to 50%
V
O
=
±50mV
3V Step, 0.1% (Note 8)
R
L
= 150Ω, A
V
= 2 (Note 9)
R
L
= 150Ω, A
V
= 2 (Note 9)
MIN
LT1193M/C/I
TYP
MAX
2
12
0.2
3
±0.5
±3.5
50
4
100
2
1.3
3.5
75
75
±4
±7
6.6
0.1
1.0
0.1
1.2
500
26.5
9
160
210
15
0
180
0.2
0.08
UNITS
mV
µA
µA
nV/√Hz
pA/√Hz
kΩ
pF
V
V
dB
dB
V
V
V
%
%
V/µs
MHz
MHz
ns
ns
%
ns
%
Deg
P-P
1193fb
ELECTRICAL CHARACTERISTICS
– 2.5
60
60
±3.8
±6.8
6.4
G
E
SR
FPBW
BW
t
r
, t
f
t
PD
t
s
Diff A
V
Diff Ph
Gain Error
Slew Rate
Full-Power Bandwidth
Small-Signal Bandwidth
Rise Time, Fall Time
Propagation Delay
Overshoot
Settling Time
Differential Gain
Differential Phase
350
18.5
110
2
U
W
U
U
W W
W
LT1193
ELECTRICAL CHARACTERISTICS
SYMBOL
I
S
I
SHDN
t
ON
t
OFF
PARAMETER
Supply Current
Shutdown Supply Current
Shutdown Pin Current
Turn On Time
Turn Off Time
V
S
=
±5V,
V
REF
= 0V, R
FB1
= 900Ω from Pins 6 to 8, R
FB2
= 100Ω from Pin 8
to ground, R
L
= R
FB1
+ R
FB2
= 1k (Note 3), T
A
= 25°C, C
L
≤
10pF, Pin 5 open circuit, unless otherwise noted.
CONDITIONS
Pin 5 at V
–
Pin 5 at V
–
Pin 5 from V
–
to Ground, R
L
= 1k
Pin 5 from Ground to V
–
, R
L
= 1k
LT1193M/C/I
MIN
TYP
MAX
35
1.3
20
300
200
43
2
50
UNITS
mA
mA
µA
ns
ns
V
S+
= 5V, V
S –
= 0V, V
REF
= 2.5V, R
FB1
= 900Ω from Pins 6 to 8, R
FB2
= 100Ω from Pin 8 to V
REF
, R
L
= R
FB1
+ R
FB2
= 1k (Note 3),
T
A
= 25°C, C
L
≤
10pF, Pin 5 open circuit, unless otherwise noted.
SYMBOL
V
OS
I
OS
I
B
CMRR
V
OUT
SR
BW
I
S
I
SHDN
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Output Voltage Swing
Slew Rate
Small-Signal Bandwidth
Supply Current
Shutdown Supply Current
Shutdown Pin Current
Pin 5 at V
–
Pin 5 at V
–
V
CM
= 2V to 3.5V
R
L
= 100Ω to Ground
V
O
= 1V to 3V
V
OUT
High
V
OUT
Low
CONDITIONS
Both Inputs (Note 4) All Packages
Either Input
Either Input
2
55
3.6
70
3.8
0.25
250
8
32
1.3
20
40
2
50
0.4
MIN
LT1193M/C/I
TYP
MAX
3
0.2
±0.5
15
3
±3.5
3.5
UNITS
mV
µA
µA
V
dB
V
V
V/µs
MHz
mA
mA
µA
The
q
denotes the specificatons which apply over the full operating temperature range of – 55°C
≤
T
A
≤
125°C. V
S
=
±5V,
V
REF
= 0V, R
FB1
= 900Ω from Pins 6 to 8, R
FB2
= 100Ω from Pin 8 to ground, R
L
= R
FB2
= 1k (Note 3), C
L
≤
10pF, Pin 5 open circuit,
unless otherwise noted.
SYMBOL
V
OS
∆V
OS
/∆T
I
OS
I
B
CMRR
PSRR
V
OUT
G
E
I
S
I
SHDN
PARAMETER
Input Offset Voltage
Input V
OS
Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Gain Error
Supply Current
Shutdown Supply Current
Shutdown Pin Current
Pin 5 at V
–
(Note 10)
Pin 5 at V
–
V
CM
= – 2.5V to 3.5V
V
S
=
±
2.375V to
±
5V
R
L
= 1k
V
S
=
±8V,
R
L
= 100Ω
V
O
=
±
3V, R
L
= 1k
CONDITIONS
q
q
q
q
q
q
q
q
q
q
q
q
q
MIN
LT1193M
TYP
2
20
0.8
±1
MAX
16
5
±5.5
3.5
UNITS
mV
µV/°C
µA
µA
V
dB
dB
V
–2.5
53
53
3.6
6
70
70
4
6.5
0.2
35
1.3
20
1.2
43
2.2
%
mA
mA
µA
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3
LT1193
ELECTRICAL CHARACTERISTICS
The
q
denotes the specificatons which apply over the full operating temperature range of – 40°C
≤
T
A
≤
85°C. V
S
=
±5V,
V
REF
= 0V, R
FB1
= 900Ω from Pins 6 to 8, R
FB2
= 100Ω from Pin 8 to ground, R
L
= R
FB2
= 1k (Note 3), C
L
≤
10pF, Pin 5 open circuit,
unless otherwise noted.
SYMBOL
V
OS
∆V
OS
/∆T
I
OS
I
B
CMRR
PSRR
V
OUT
G
E
I
S
I
SHDN
PARAMETER
Input Offset Voltage
Input V
OS
Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Gain Error
Supply Current
Shutdown Supply Current
Shutdown Pin Current
CONDITIONS
SO-8 Package
MIN
q
q
q
q
q
LT1193I
TYP
2
20
0.8
±1
70
70
4
6.5
0.2
35
1.3
20
MAX
20
5
±5.5
3.5
V
CM
= – 2.5V to 3.5V
V
S
=
±
2.375V to
±
5V
R
L
= 1k
V
S
=
±8V,
R
L
= 100Ω
V
O
=
±
3V, R
L
= 1k
Pin 5 at
Pin 5 at V
–
V
–
(Note 10)
q
q
q
q
q
q
q
q
–2.5
53
53
3.6
6
UNITS
mV
µV/°C
µA
µA
V
dB
dB
V
%
mA
mA
µA
1.2
43
2.2
The
q
denotes the specificatons which apply over the full operating temperature range of 0°C
≤
T
A
≤
70°C. V
S
=
±5V,
V
REF
= 0V,
R
FB1
= 900Ω from Pins 6 to 8, R
FB2
= 100Ω from Pin 8 to ground, R
L
= R
FB1
+ R
FB2
= 1k (Note 3), C
L
≤
10pF, Pin 5 open circuit,
unless otherwise noted.
SYMBOL
V
OS
∆V
OS
/∆T
I
OS
I
B
CMRR
PSRR
V
OUT
G
E
I
S
I
SHDN
PARAMETER
Input Offset Voltage
Input V
OS
Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Swing
Gain Error
Supply Current
Shutdown Supply Current
Shutdown Pin Current
CONDITIONS
N8 Package
SO-8 Package
MIN
q
q
q
q
q
q
LT1193C
TYP
2
20
0.2
±0.5
MAX
14
20
3.5
±4
3.5
V
CM
= – 2.5V to 3.5V
V
S
=
±
2.375V to
±
5V
R
L
= 1k
R
L
= 100Ω
V
O
=
±
3V, R
L
= 1k
Pin 5 at V
–
(Note 10)
Pin 5 at V
–
q
q
q
q
q
q
q
q
–2.5
55
55
3.7
6.2
70
70
4
6.6
0.2
35
1.3
20
1.2
43
2.1
UNITS
mV
mV
µV/°C
µA
µA
V
dB
dB
V
V
%
mA
mA
µA
Note 1:
Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2:
A heat sink is required to keep the junction temperature below
absolute maximum when the output is shorted.
Note 3:
When R
L
= 1k is specified, the load resistor is R
FB1
+ R
FB2
, but
when R
L
= 100Ω is specified, then an additional 100Ω is added to the
output.
Note 4:
V
OS
measured at the output (Pin 6) is the contribution from both
input pair, and is input referred.
Note 5:
V
IN LIM
is the maximum voltage between –V
IN
and +V
IN
(Pin 2 and
Pin 3) for which the output can respond.
Note 6:
Slew rate is measured between
±
2V on the output, with a
±
1V
input step, A
V
= 3.
Note 7:
Full-power bandwidth is calculated from the slew rate
measurement:
FPBW = SR/2πV
P
.
Note 8:
Settling time measurement techniques are shown in “Take the
Guesswork Out of Settling Time Measurements,” EDN, September 19,
1985.
Note 9:
NTSC (3.58MHz).
Note 10:
See Applications section for shutdown at elevated temperatures.
Do not operate the shutdown above T
J
> 125°C.
Note 11:
AC parameters are 100% tested on the ceramic and plastic DIP
packaged parts (J and N suffix) and are sample tested on every lot of the
SO packaged parts (S suffix).
1193fb
4
LT1193
TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current
vs Common Mode Voltage
4
3
V
S
=
±5V
INPUT BIAS CURRENT (µA)
–0.3
COMMON MODE VOLTAGE (V)
INPUT BIAS CURRENT (µA)
2
1
25°C
0
–1
–2
–4
–3
1
3
–2 –1
0
2
COMMON MODE VOLTAGE (V)
4
–55°C
125°C
Equivalent Input Noise Voltage
vs Frequency
EQUIVALENT INPUT NOISE CURRENT (pA/√Hz)
EQUIVALENT INPUT NOISE VOLTAGE (nV/√Hz)
400
350
300
250
200
150
100
50
0
10
100
SUPPLY CURRENT (mA)
1k
10k
FREQUENCY (Hz)
Shutdown Supply Current
vs Temperature
5.0
SHUTDOWN SUPPLY CURRENT (mA)
4.5
V
S
=
±5V
3
3.5
3.0
V
SHDN
= –V
EE
+ 0.2V
2.5
2.0
V
SHDN
= –V
EE
1.5
1.0
–50
–25
0
25
75
50
TEMPERATURE (°C)
100
125
1
R
L
= 100Ω
OPEN-LOOP GAIN (V/V)
4.0
V
SHDN
= –V
EE
+ 0.4V
GAIN ERROR (%)
U W
LT1193 • TPC01
Input Bias Current
vs Temperature
V
S
=
±5V
10
8
6
4
2
0
–2
–4
–6
–8
–0.8
–50
–10
–25
50
0
25
75
TEMPERATURE (°C)
100
125
Common Mode Voltage
vs Supply Voltage
–55°C
25°C
+V COMMON MODE
125°C
–0.4
+I
B
–0.5
I
OS
–0.6
–I
B
–0.7
–V COMMON MODE
–55°C
25°C
125°C
0
2
6
4
8
±V
SUPPLY VOLTAGE (V)
10
LT1193 • TPC02
LT1193 • TPC03
Equivalent Input Noise Current
vs Frequency
80
V
S
=
±5V
T
A
= 25°C
R
S
= 100k
50
Supply Current vs Supply Voltage
V
S
=
±5V
T
A
= 25°C
R
S
= 0Ω
60
40
–55°C
30
25°C
125°C
20
40
20
10
0
10
100
1k
10k
FREQUENCY (Hz)
100k
0
0
2
4
6
8
±SUPPLY
VOLTAGE (V)
10
100k
LT1193 • TPC04
LT1193 • TPC05
LT1193 • TPC06
Gain Error vs Temperature
V
S
=
±5V
Open-Loop Gain vs Temperature
20k
V
S
=
±5V
V
O
=
±3V
R
L
= 1k
2
15k
0
R
L
= 1k
10k
5k
R
L
= 100Ω
–1
–2
–50 –25
25
0
50
75
TEMPERATURE (°C)
100
125
0
–50 –25
25
75
0
50
TEMPERATURE (°C)
100
125
LT1193 • TPC07
LT1193 • TPC08
LT1193 • TPC09
1193fb
5
嵌入式系统
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