LT1194_01 [Linear]
Video Difference Amplifier; 视频差分放大器器
| 型号： | LT1194_01 |
| 厂家： | 
Linear |
| 描述： | Video Difference Amplifier |
| 文件： | 总12页 (文件大小：246K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1194
Video Difference
Amplifier
U
FEATURES
DESCRIPTIO
The LT®1194 is a video difference amplifier optimized for
operationon±5Vandasingle5Vsupply. Theamplifierhas
a fixed gain of 20dB and features adjustable input limiting
to control tough overdrive applications. It has uncommit-
ted high input impedance (+) and (–) inputs, and can be
used in differential or single-ended configurations.
■
Differential or Single-Ended Gain Block:± 10 (20dB)
■
–3dB Bandwidth: 35MHz
■
Slew Rate: 500V/µs
■
Low Cost
■
Output Current: ±50mA
■
Settling Time: 200ns to 0.1%
■
CMRR at 10MHz: 45dB
The LT1194’s high slew rate 500V/µs, wide bandwidth
35MHz, and ±50mA output current make it ideal for
driving cables directly. This versatile amplifier is easy to
use for video or applications requiring speed, accuracy
and low cost.
■
Differential Gain Error: 0.2%
■
Differential Phase Error: 0.08°
■
Input Amplitude Limiting
Single 5V Operation
■
■
Drives Cables Directly
The LT1194 is available in 8-pin PDIP and SO packages.
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
■
Line Receivers
■
Video Signal Processing
■
Gain Limiting
Oscillators
■
■
Tape and Disc Drive Systems
U
TYPICAL APPLICATIO
Wideband Differential Amplifier
with Limiting
Sine Wave Reduced by Limiting
250Ω
7pF TO 45pF
4
5V
5V
11
1µF
1
3
2
5
8
7
VOUT
+
–
+
NE592
INPUT
1V/DIV
6
LT1194
OUTPUT
14
7
4
1µF
8
–5V
–5V
1
1k
1k
V
CONTROL
LT1194 • TA01
A
= 1000, –3dB BW = 35MHz
V
LT1193 • TA02
200kHz SINE WAVE WITH VCONTROL = –5V, –4V, –3V, –2V
1
LT1194
W W U W
ABSOLUTE AXI U RATI GS
(Note 1)
Total Supply Voltage (V+ to V–) .............................. 18V
Differential Input Voltage ........................................ ±6V
Input Voltage .......................................................... ±VS
Output Short Circuit Duration (Note 2) ........ Continuous
Operating Temperature Range
TOP VIEW
ORDER PART
NUMBER
BAL/V
1
2
3
4
8
7
6
5
BAL/V
C
C
+
–IN
+IN
V
LT1194CN8
LT1194CS8
OUT
REF
–
V
LT1194M (OBSOLETE) ............... – 55°C to 125°C
LT1194C................................................. 0°C to 70°C
Maximum Junction Temperature ......................... 150°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
S8 PART MARKING
1194
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 100°C/W (N8)
T
JMAX = 150°C, θJA = 150°C/W (S8)
LT1194MJ8
LT1194CJ8
J8 PACKAGE 8-LEAD CERDIP
TJMAX = 150°C, θJA = 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.
ELECTRICAL CHARACTERISTICS
VS = ±5V, VREF = 0V, Null Pins 1 and 8 open circuit, TA = 25°C, CL ≤ 10pF, unless otherwise noted.
LT1194M/C
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
6
UNITS
mV
µA
V
Input Offset Voltage
Input Offset Current
Input Bias Current
All Packages
1
0.2
±0.5
15
4
OS
I
I
3
OS
±3.5
µA
B
e
Input Noise Voltage
Input Noise Current
Input Resistance
f = 10kHz
O
nV/√Hz
pA/√Hz
kΩ
pF
n
i
f = 10kHz
O
n
R
Either Input
Either Input
30
2
IN
IN
C
Input Capacitance
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Maximum Output Signal
Output Voltage Limit
Output Voltage Swing
–2.5
65
3.5
V
CMRR
PSRR
V
= –2.5V to 3.5V
80
80
dB
CM
V = ±2.375V to ±8V
65
dB
S
V
V
V
V = ±8V (Note 3)
±3
±4.3
±20
6.9
6.7
–7.4
–6.7
±4
V
OMAX
LIM
S
V = ±0.5V, V = 2V (Note 4)
±120
mV
V
i
C
V = ±8V, V = 4V
R = 1k
6.6
6.3
OUT
S
REF
L
R = 100Ω
L
V
V = ±8V, V = –4V
R = 1k
L
–6.7
–6.4
±3
V
S
REF
R = 100Ω
L
V
V = ±5V, V = 0V, R = 1k
V
S
REF
L
G
Gain Error
V = ±3V
R = 1k
0.5
0.5
500
26.5
35
3
3
%
E
O
L
R = 100Ω
L
%
SR
Slew Rate
V = ± 1V, R = 1k (Notes 5, 9)
O
350
V/µs
MHz
MHz
ns
L
FPBW
BW
Full-Power Bandwidth
Small-Signal Bandwidth
Rise Time, Fall Time
Propagation Delay
V
= 6V (Note 6)
18.5
O
P-P
t , t
r
R = 1k, V = ±500mV, 20% to 80% (Note 9)
L
4
6
8
f
O
t
R = 1k, V = ±125mV, 50% to 50%
L
6.5
ns
PD
O
2
LT1194
ELECTRICAL CHARACTERISTICS
VS = ±5V, VREF = 0V, Null Pins 1 and 8 open circuit, TA = 25°C, CL≤ 10pF, unless otherwise noted.
LT1194M/C
TYP
SYMBOL
PARAMETER
Overshoot
CONDITIONS
= ±125mV
MIN
MAX
UNITS
%
V
0
O
t
Settling Time
Differential Gain
Differential Phase
Supply Current
3V Step, 0.1% (Note 7)
R = 150Ω (Note 8)
200
0.2
0.08
35
ns
s
Diff A
%
V
L
Diff Ph
R = 150Ω (Note 8)
L
Deg
P-P
I
43
mA
S
+
VS = 5V, VS– = 0V, VREF = 2.5V, Null Pins 1 and 8 open circuit, TA = 25°C, CL ≤ 10pF, unless otherwise noted.
LT1194M/C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
2
MAX
8
UNITS
mV
µA
V
Input Offset Voltage
Input Offset Current
Input Bias Current
All Packages
OS
I
I
0.2
±0.5
3
OS
±3
3.5
µA
B
Input Voltage Range
Common Mode Rejection Ratio
Output Voltage Limit
Output Voltage Swing
2
V
CMRR
V
= 2V to 3.5V
55
70
±20
3.8
0.25
250
32
dB
CM
V
V
V = ±0.5V, V = 2V (Note 4)
I
±120
mV
V
LIM
C
R = 100Ω to Ground
L
V
V
High
Low
3.6
OUT
OUT
OUT
0.4
V
SR
Slew Rate
V
= 1V to 3V
V/µs
MHz
mA
O
BW
Small-Signal Bandwidth
Supply Current
I
32
40
S
The ● denotes specifications which apply over the full operating temperature range of –55°C ≤ TA ≤ 125°C.
VS = ±5V, VREF = 0V, Null Pins 1 and 8 open circuit, unless otherwise noted.
LT1194M
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
mV
mV/°C
µA
µA
V
V
Input Offset Voltage
N8 Package
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1
6
9
OS
∆V /∆T
OS
Input V Drift
OS
I
I
Input Offset Current
0.8
±1
5
OS
B
Input Bias Current
±5.5
3.5
Input Voltage Range
–2.5
58
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Limit
V
= – 2.5V to 3.5V
80
80
dB
dB
mV
V
CM
V = ±2.375V to ±5V
S
60
V
V
V = ±0.5V, V = 2V (Note 4)
I
±20
6.6
6.5
–6.7
–6.5
1
±150
LIM
C
Output Voltage Swing
V = ±8V,
R = 1k
6
OUT
S
L
VREF = 4V
R = 100Ω
L
5.9
–6.1
–6
V
V = ±8V,
R = 1k
L
V
S
VREF = –4V
R = 100Ω
L
V
G
E
Gain Error
V = ±3V, R = 1k
5
%
O
L
I
Supply Current
35
43
mA
S
3
LT1194
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range of 0°C ≤ TA ≤ 70°C. VS = ±5V, VREF = 0V, Null Pins 1 and 8 open circuit, unless otherwise noted.
LT1194C
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
mV
µV/°C
µA
µA
V
V
Input Offset Voltage
All Packages
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1
7
OS
∆V /∆T
OS
Input V Drift
6
OS
I
I
Input Offset Current
0.2
±0.5
3.5
±4
3.5
OS
B
Input Bias Current
Input Voltage Range
–2.5
60
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Output Voltage Limit
V
= – 2.5V to 3.5V
80
80
dB
dB
mV
V
CM
V = ±2.375V to ±5V
S
60
V
V
V = ±0.5V, V = 2V (Note 4)
±20
6.9
6.7
–7.2
–6.6
1
±130
LIM
I
C
Output Voltage Swing
V = ±8V,
R = 1k
6.2
6.1
OUT
S
L
VREF = 4V
R = 100Ω
L
V
V = ±8V,
R = 1k
L
–6.4
–6.2
V
S
VREF = –4V
R = 100Ω
L
V
G
E
Gain Error
V = ±3V, R = 1k
4
%
O
L
I
Supply Current
35
43
mA
S
Note 1: Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 5: Slew rate is measured between ±1V on the output, with a ±0.3V
input step.
Note 2: A heat sink is required to keep the junction temperature below
absolute maximum when the output is shorted.
Note 6: Full-power bandwidth is calculated from the slew rate
measurement:
Note 3: There are two limitations on signal swing. Output swing is limited
FPBW = SR/2πV .
P
by clipping or saturation in the output stage. Input swing is controlled by
Note 7: Settling time measurement techniques are shown in “Take the
Guesswork Out of Settling Time Measurements,” EDN, September 19,
1985.
an adjustable input limiting function. On V = ±5V, the overload
S
characteristic is output limiting, but on ±8V the overload characteristic is
input limiting. V
is measured with the null pins open circuit.
OMAX
Note 8: NTSC (3.58MHz).
Note 4: Output amplitude is reduced by the input limiting function. The
input limiting function occurs when the null pins, 1 and 8, are tied together
and raised to a potential 0.3V or more above the negative supply.
Note 9: 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 part (S suffix).
Optional Offset Nulling Circuit
Input Limiting Connection
Input Limiting with Offset Nulling
5V
5V
5V
3
2
3
2
3
7
7
7
+
+
+
6
6
6
LT1194
LT1194
LT1194
2
4
4
4
–
–
–
8
8
8
–5V
–5V
–5V
V
C
1
1
1
LT1194 • TA03
V
C
(NOTE 4)
(NOTE 4)
INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A ±250mV
RANGE WITH A 1kΩ TO 10kΩ POTENTIOMETER
4
LT1194
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current
vs Common Mode Voltage
Input Bias Current
vs Temperature
Common Mode Voltage
vs Supply Voltage
4
3
–0.3
–0.4
10
8
V
S
= ±5V
V
S
= ±5V
–55°C
25°C
6
+V COMMON MODE
125°C
4
+I
B
B
2
1
–0.5
–0.6
–0.7
–0.8
2
I
OS
0
25°C
–2
–4
–6
–8
–10
–55°C
0
–1
–2
–55°C
25°C
–I
125°C
–V COMMON MODE
125°C
–4 –3 –2 –1
0
1
2
3
4
–50 –25
0
25
50
75 100 125
0
2
4
6
8
10
COMMON MODE VOLTAGE (V)
TEMPERATURE (°C)
±V SUPPLY VOLTAGE (V)
LT1194 • TPC01
LT1194 • TPC02
LT1194 • TPC03
Equivalent Input Noise Voltage
vs Frequency
Equivalent Input Noise Current
vs Frequency
Supply Current vs Supply Voltage
150
80
60
40
50
40
30
V
T
= ±5V
V
T
= ±5V
= 25°C
= 0Ω
S
S
= 25°C
A
A
R
= 100k
R
S
S
–55°C
100
50
0
25°C
125°C
20
10
0
20
0
10
100
1k
10k
100k
10
100
1k
10k
100k
0
2
4
6
8
10
FREQUENCY (Hz)
FREQUENCY (Hz)
±SUPPLY VOLTAGE (V)
LT1194 • TPC04
LT1194 • TPC05
LT1194 • TPC06
Gain, Phase vs Frequency
Gain Error vs Temperature
–3dB Bandwidth vs Supply Voltage
22
20
18
16
20
1.0
0.8
0.6
0.4
0.2
0
36
35
V
= ±5V
S
GAIN
0
–20
–40
34
33
R
= 1k
L
PHASE
T
= –55°C, 25°C, 125°C
A
14
12
–60
–80
32
31
30
R
L
= 100Ω
V
= ±5V
= 25°C
= 1k
S
A
L
10
8
–100
–120
T
R
100k
1M
10M
100M
–50 –25
0
25
50
75 100 125
0
2
4
10
6
8
FREQUENCY (Hz)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
LT1194 • TPC08
LT1194 • TPC07
LT1194 • TPC09
5
LT1194
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Common Mode Rejection Ratio
vs Frequency (Output Referred)
Power Supply Rejection Ratio
vs Frequency (Output Referred)
Output Impedance vs Frequency
100
10
1
60
50
40
60
40
20
V
T
= ±5V
V
T
= ±5V
V
T
= ±5V
S
A
= ±300mV
RIPPLE
S
A
S
= 25°C
= 25°C
= 25°C
A
R
= 1k
V
L
30
20
10
0
0.1
–20
1k
1k
10k
100k
FREQUENCY (Hz)
100k
1M
10M
100M
1M
10M
100M
10k
100k
FREQUENCY (Hz)
1M
10M
100M
FREQUENCY (Hz)
LT1194 • TPC10
LT1194 • TPC11
LT1194 • TPC12
Output Short-Circuit Current
vs Temperature
Output Voltage Limiting
vs Supply Voltage
Output Voltage
vs Voltage On Control Pins
100
90
6
4
6
4
T
A
= 125°C
V
= ±5V
V
= –5V
= 25°C
= 1k
S
A
L
S
T
T
A
= 25°C
R
T
= –50°C
A
+LIMITING
2
0
2
0
+OUTPUT SWING
BAL/V PINS 1, 8
C
FLOATING
–OUTPUT SWING
= –50°C
80
–2
–4
–6
–2
–4
–6
–LIMITING
T
A
T
= 25°C
A
T
= 125°C
A
70
–50 –25
0
25
50
75 100 125
0
–6
–4
–3
–2
–1
2
4
10
–5
0
6
8
TEMPERATURE (°C)
±SUPPLY VOLTAGE (V)
VOLTAGE ON CONTROL PINS (V)
LT1194 • TPC13
LT1194 • TPC14
LT1194 • TPC15
Voltage Gain
vs Frequency with Control Voltage
Output Voltage Swing
vs Load Resistance
Slew Rate vs Temperature
5
3
30
10
900
800
700
600
500
400
300
V
= ±5V
V
= –5V
= –3V
V = ±5V
S
S
L
C
C
R
V
= 1k
–SLEW RATE
T
= –55°C
V
A
= ±2V
O
T
= 25°C
A
–10
–30
–50
–70
–90
1
T
= 125°C
A
V
C
= –1V
–1
–3
–5
+SLEW RATE
T
= 125°C
A
T
= –55°C
A
T
= 25°C
A
V
T
= ±5V
= 25°C
= 1k
S
V
= 1V
A
C
R
L
10
100
LOAD RESISTANCE (Ω)
1000
–50 –25
0
25
50
75 100 125
10M
100k
1M
1G
100M
TEMPERATURE (°C)
FREQUENCY (Hz)
LT1194 • TPC16
LT1194 • TPC17
LT1194 • TPC18
6
LT1194
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Output Voltage Step
vs Settling Time
Small-Signal Transient Response
Large-Signal Transient Response
4
2
V
= ±5V
= 25°C
= 1k
S
A
L
T
R
10mV
0
10mV
–2
–4
LT1194 • TPC20
LT1194 • TPC21
RISE TIME = 10.8ns, PROPAGATION DELAY = 6ns
RL = 150Ω, +SR = 430V/µs, –SR = 500V/µs
40
60
80 100 120 140 160 180
SETTLING TIME (ns)
LT1194 • TPC19
W U U
U
APPLICATIO S I FOR ATIO
Input Limiting
TheLT1194isavideodifferenceamplifierwithafixedgain
of 10 (20dB). The amplifier has two uncommitted high
input impedance (+) and (–) inputs that can be used either
differentially or single-ended. The LT1194 includes a
limiting feature that allows the amplifier to reduce its
output as a function of DC voltage on the BAL/VC pins. The
limiting feature uses input differential-pair limiting to
prevent overload in subsequent stages. This technique
allows extremely fast limiting action.
OUTPUT
INPUT
Power Supply Bypassing
LT1194 • TA04
The LT1194 is quite tolerant of power supply bypassing.
In some applications a 0.1µF ceramic disc capacitor
placed 1/2 inch from the amplifier is all that is required.
20dB INPUT OVERDRIVE, VC = –4.2V
7
LT1194
W U U
U
APPLICATIO S I FOR ATIO
Settling Time Good Bypass
A scope photo of the amplifier output with no supply
bypassing is used to demonstrate this bypassing toler-
ance, RL = 1k.
In many applications, and those requiring good settling
time, it is important to use multiple bypass capacitors. A
0.1µF ceramic disc in parallel with a 4.7µF tantalum is
recommended. Two oscilloscope photos with different
bypass conditions are used to illustrate the settling time
characteristics of the amplifier. Note that although the
outputwaveformlooksacceptableat1V/DIV, whenampli-
fied to 10mV/DIV the settling time to 10mV is 200ns. The
time drops to 162ns with multiple bypass capacitors, and
does not exhibit the characteristic power supply ringing.
LT1194 • TA07
SETTLING TIME TO 10mV,
SUPPLY BYPASS CAPACITORS = 0.1µF + 4.7µF TANTALUM
No Supply Bypass
Cable Terminations
The LT1194 video difference amplifier has been optimized
as a low cost cable driver. The ±50mA guaranteed output
current enables the LT1194 to easily deliver 7.5VP-P into
100Ω, while operating on ±5V supplies, or 2.6VP-P on a
single 5V supply.
When driving a cable it is important to terminate the cable
to avoid unwanted reflections. This can be done in one of
two ways: single termination or double termination. With
single termination, the cable must be terminated at the
receiving end (75Ω to ground) to absorb unwanted en-
ergy. The best performance can be obtained by double
termination(75Ωinserieswiththeoutputoftheamplifier,
and 75Ω to ground at the other end of the cable). This
termination is preferred because reflected energy is ab-
sorbed at each end of the cable. When using the double
terminationtechniqueitisimportanttonotethatthesignal
isattenuatedbyafactorof2,or6dB.Foracabledriverwith
againof5(LT1194gainof10),the–3dBbandwidthisover
30MHz with no peaking.
LT1194 • TA05
IN DEMO BOARD, RL = 1k
Settling Time Poor Bypass
A Voltage Controlled Current Source
The LT1194 can be used to make a fast, precise, voltage
controlled current source. The LT1194 high speed differ-
ential amplifier senses the current delivered to the load.
TheinputsignalVIN, appliedtothe(+)inputoftheLT1191,
LT1194 • TA06
SETTLING TIME TO 10mV,
SUPPLY BYPASS CAPACITORS = 0.1µF
8
LT1194
W U U
APPLICATIO S I FOR ATIO
U
Voltage Controlled Current Source
Double Terminated Cable Driver
5V
5V
7
3
5
2
7
3
2
+
±V
IN
+
CABLE
75Ω
6
6
LT1194
LT1191
–
75Ω
4
–
C
C
8
4
1
–5V
–5V
5V
V
C
7
3
5
+
2k
6
R
LT1194
5.1Ω
Voltage Gain vs Frequency
–
2
4
I
= ±20mA
O
16
14
12
10
8
–5V
T
= 25°C
A
R
L
100Ω
LT1194 • TA09
Output Current Response
6
4
2
C
C = 1pF
100k
1M
10M
100M
FREQUENCY (Hz)
LT1194 • TA08
CC = 3pF
will appear at the (–) input if the feedback loop is properly
closed. In steady state the input signal appears at the
output of the LT1194, and 1/10 of this signal is applied
across the sense resistor. Thus the output current is
simply:
C
C = 20pF
LT1194 • TA10
±20mA CURRENT SOURCE WITH DIFFERENT
COMPENSATION CAPACITORS
V
IN
R • 10
I =
O
Differential Video Loop Thru Amplifier
for Power-Down Applications
The compensation capacitor CC forces the LT1191 to be
the dominate pole for the loop, while the LT1194 is fast
enough to be transparent in the feedback path. The ratio of
the load resistor to the sense resistor should be approxi-
mately 10:1 or greater for easy compensation. For the
example shown the load resistor is 100Ω, the sense
resistor is 5.1Ω, and various loop compensation capaci-
tors cause the output to exhibit an underdamped, critically
and overdamped response.
V
IN
5V
1.5k
15k
15k
7
3
2
5
+
–
CABLE
6
OUTPUT
LT1194
1.5k
4
–5V
1% RESISTOR WORST-CASE CMRR = 22dB
TYPICALLY = 38dB
LT1194 • TA11
9
LT1194
W U U
U
APPLICATIO S I FOR ATIO
Murphy Circuits
Other precautions include:
There are several precautions the user should take when
using the LT1194 in order to realize its full capability.
Although the LT1194 can drive a 50pF capacitive load,
isolating the capacitance with 10Ω can be helpful. Precau-
tions primarily have to do with driving large capacitive
loads.
1. Use a ground plane (see Design Note 50, High Fre-
quency Amplifier Evaluation Board).
2. Do not use high source impedances. The input capaci-
tance of 2pF, and RS = 10k, for instance, will give an
8MHz – 3dB bandwidth.
3. PC board socket may reduce stability.
Driving Capacitive Load
Driving Capacitive Load
LT1194 • TA12
LT1194 • TA13
LT1194 IN DEMO BOARD, CL = 50pF
LT1194 IN DEMO BOARD, CL = 50pF
WITH 10Ω ISOLATING RESISTOR
5V
5V
3
3
7
7
+
+
COAX
5
2
5
2
6
6
LT1194
LT1194
–
–
4
8
–5V
4
8
–5V
1X SCOPE
PROBE
1
1
LT1194 • TA14
An Unterminated Cable is
a Large Capacitive Load
A 1X Scope Probe is a
Large Capacitive Load
10
LT1194
W
W
SI PLIFIED SCHE ATIC
+
7
V
V
V
BIAS
BIAS
C
M
+
3
C
FF
2
–
6
V
OUT
+V
+V
*
–
V
4
500Ω
4.5k
1
BAL
8
BAL
5
REF
LT1194 • TA15
* SUBSTRATE DIODE, DO NOT FORWARD BIAS
U
PACKAGE DESCRIPTIO
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
CORNER LEADS OPTION
(4 PLCS)
0.023 – 0.045
(0.584 – 1.143)
HALF LEAD
OPTION
0.405
(10.287)
MAX
0.005
(0.127)
MIN
0.200
(5.080)
MAX
0.045 – 0.068
0.300 BSC
(1.143 – 1.727)
(0.762 BSC)
FULL LEAD
6
5
4
8
7
OPTION
0.015 – 0.060
(0.381 – 1.524)
0.025
(0.635)
RAD TYP
0.220 – 0.310
(5.588 – 7.874)
0.008 – 0.018
0° – 15°
(0.203 – 0.457)
J8 1298
1
2
3
0.045 – 0.065
(1.143 – 1.651)
0.125
3.175
MIN
0.014 – 0.026
(0.360 – 0.660)
0.100
(2.54)
BSC
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE
OR TIN PLATE LEADS
OBSOLETE PACKAGE
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-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
11
LT1194
U
PACKAGE DESCRIPTIO
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
0.400*
(10.160)
MAX
0.130 ± 0.005
(3.302 ± 0.127)
0.300 – 0.325
(7.620 – 8.255)
0.045 – 0.065
(1.143 – 1.651)
8
1
7
6
5
4
0.065
(1.651)
TYP
0.255 ± 0.015*
(6.477 ± 0.381)
0.009 – 0.015
(0.229 – 0.381)
0.125
0.020
(0.508)
MIN
(3.175)
MIN
+0.035
–0.015
2
3
0.325
0.018 ± 0.003
0.100
(2.54)
BSC
N8 1098
+0.889
8.255
(0.457 ± 0.076)
(
)
–0.381
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
0.010 – 0.020
(0.254 – 0.508)
7
5
8
6
× 45°
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0.008 – 0.010
(0.203 – 0.254)
0°– 8° TYP
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
0.016 – 0.050
(0.406 – 1.270)
0.050
(1.270)
BSC
0.014 – 0.019
(0.355 – 0.483)
TYP
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
SO8 1298
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
1
3
4
2
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1193
A = 2 Video Difference Amp
V
80MHz BW, 500V/µs Slew Rate
1194fa LT/CP 0801 1.5K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1991
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
12
●
●
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
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