LT1192CS8#TRPBF [Linear]
LT1192 - Ultra High Speed Operational Amplifier; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C;
| 型号： | LT1192CS8#TRPBF |
| 厂家： | 
Linear |
| 描述： | LT1192 - Ultra High Speed Operational Amplifier; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C 放大器 光电二极管 |
| 文件： | 总12页 (文件大小：250K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LT1192
Ultrahigh Speed
Operational Amplifier
U
FEATURES
DESCRIPTIO
■
Gain Bandwidth Product, AV = 5: 350MHz
The LT1192 is a video operational amplifier optimized for
operation on ±5V and a single 5V supply. Unlike many
high speed amplifiers, this amplifier features high open-
loop gain, over 100dB, and the ability to drive heavy loads
to a full-power bandwidth of 20MHz at 7VP-P. In addition
to its very fast slew rate, the LT1192 has a high gain
bandwidth of 350MHz and is compensated for a closed-
loop gain of 5 or greater.
■
Slew Rate: 450V/µs
■
Low Cost
Output Current: ±50mA
Settling Time: 90ns to 0.1%
■
■
■
Differential Gain Error: 0.1% (RL = 1k)
■
Differential Phase Error: 0.01° (RL = 1k)
■
High Open-Loop Gain: 100V/mV Min
■
Single Supply 5V Operation
Output Shutdown
Because the LT1192 is a true operational amplifier, it is an
ideal choice for wideband signal conditioning, active fil-
ters, and applications requiring speed, accuracy and low
cost.
■
U
APPLICATIO S
■
Video Cable Drivers
The LT1192 is available in 8-pin PDIP and SO packages
with standard pinouts. The normally unused Pin 5 is used
for a shutdown feature that shuts off the output and
reduces power dissipation to a mere 15mW.
■
Video Signal Processing
■
Photo Diode Amplifier
Pulse Amplifiers
D/A Current to Voltage Conversion
■
■
, LTC and LT are registered trademarks of Linear Technology Corporation.
U
TYPICAL APPLICATIO
Double Terminated Cable Driver
Inverter Pulse Response
5V
3
7
+
CABLE
75Ω
6
LT1192
2
–
4
75Ω
–5V
100Ω
910Ω
LT1192 • TA01
–3dB BANDWIDTH = 55MHz
LT1192 • TA02
AV = – 5, CL = 10pF SCOPE PROBE
1
LT1192
W W
U W
U
ABSOLUTE AXI U RATI GS
(Note 1)
PACKAGE DESCRIPTIO
Total Supply Voltage (V + to V –) ............................. 18V
Differential Input Voltage ........................................ ±6V
Input Voltage .......................................................... ±VS
Output Short-Circuit Duration (Note 2)........ Continuous
Operating Temperature Range
LT1192M (OBSOLETE) ............... –55°C to 125°C
LT1192C................................................. 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
ORDER PART
NUMBER
TOP VIEW
BAL
–IN
+IN
1
2
3
4
8
7
6
5
BAL
+
V
LT1192CN8
LT1192CS8
OUT
–
V
SHDN
S8 PART MARKING
1192
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 100°C/W (N8)
JMAX = 150°C, θJA = 150°C/W (S8)
T
LT1192MJ8
LT1192CJ8
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, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted.
LT1192M/C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
Input Offset Voltage
N8 Package
SO-8 Package
0.2
2.5
3
mV
mV
OS
I
I
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance
0.2
±0.5
9
1.7
µA
µA
OS
±2.5
B
e
f = 10kHz
nV/√Hz
pA/√Hz
kΩ
n
O
i
f = 10kHz
O
4
n
R
Differential Mode
Common Mode
16
5
IN
MΩ
pF
C
Input Capacitance
A = 10
V
1.8
IN
Input Voltage Range
(Note 3)
–2.5
70
3.5
V
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
= –2.5V to 3.5V
85
85
dB
CM
V = ±2.375V to ±8V
S
70
dB
A
R = 1k, V = ±3V
100
16
20
180
35
60
V/mV
V/mV
V/mV
VOL
L
O
R = 100Ω, V = ±3V
L
O
V = ±8V, R = 100Ω, V = ±5V
S
L
O
V
Output Voltage Swing
V = ±5V, R = 1k
±3.7
±6.7
±4
±7
V
V
OUT
S
L
V = ±8V, R = 1k
S
L
SR
Slew Rate
A = –10, R = 1k (Notes 4, 9)
325
450
23.9
350
35
V/µs
MHz
MHz
ns
V
O
L
FPBW
GBW
Full-Power Bandwidth
Gain Bandwidth Product
Rise Time, Fall Time
Rise Time, Fall Time
Propagation Delay
Overshoot
V
= 6V (Note 5)
17.2
P-P
t , t
r1 f1
A = 50, V = ±1.5V, 20% to 80% (Note 9)
23
50
V
O
t , t
r2 f2
A = 5, V = ±125mV, 10% to 90%
2.7
3.5
50
ns
V
O
t
A = 5, V = ±125mV, 50% to 50%
ns
PD
V
O
A = 5, V = ±125mV
%
V
O
t
Settling Time
3V Step, 0.1% (Note 6)
90
ns
s
2
LT1192
ELECTRICAL CHARACTERISTICS
VS = ±5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted.
LT1192M/C
SYMBOL
Diff A
PARAMETER
CONDITIONS
R = 150Ω, A = 10 (Note 7)
MIN
TYP
0.23
0.15
32
MAX
UNITS
Differential Gain
Differential Phase
Supply Current
%
V
L
V
Diff Ph
R = 150Ω, A = 10 (Note 7)
Deg
P-P
L
V
I
38
2
mA
mA
µA
ns
S
–
–
Shutdown Supply Current
Shutdown Pin Current
Turn On Time
Pin 5 at V
Pin 5 at V
1.3
I
t
t
20
50
SHDN
ON
–
Pin 5 from V to Ground, R = 1k
100
400
L
–
Turn Off Time
Pin 5 from Ground to V , R = 1k
ns
OFF
L
VS+ = 5V, VS– = 0V, VCM = 2.5V, TA = 25°C, CL ≤ 10pF, Pin 5 open circuit unless otherwise noted.
LT1192M/C
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
4
UNITS
mV
µA
V
Input Offset Voltage
Input Offset Current
Input Bias Current
All Packages
0.4
0.2
OS
I
I
1.2
±1.5
3.5
OS
±0.5
µA
B
Input Voltage Range
Common Mode Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
(Note 3)
2
V
CMRR
V
= 2V to 3.5V
60
30
3.6
80
50
dB
CM
A
V
R = 100Ωto Ground, V = 1V to 3V
L
V/mV
V
VOL
OUT
O
R = 100Ωto Ground
L
V
High
Low
3.8
0.25
250
350
29
OUT
V
0.4
OUT
SR
Slew Rate
A = –5, V = 1V to 3V
V/µs
MHz
mA
mA
µA
V
O
GBW
Gain Bandwidth Product
Supply Current
I
I
36
2
S
–
Shutdown Supply Current
Shutdown Pin Current
Pin 5 at V
Pin 5 at V
1.2
20
–
50
SHDN
The ● denotes the specifications which apply over the full operating temperature range of –55°C ≤ TA ≤ 125°C.
VS = ±5V, Pin 5 open circuit unless otherwise noted.
LT1192M
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
0.4
2
MAX
UNITS
mV
V
Input Offset Voltage
N8 Package
●
●
●
●
●
●
3.5
OS
∆V /∆T
OS
Input V Drift
µV/°C
µA
OS
I
I
Input Offset Current
0.2
±0.5
85
2
OS
B
Input Bias Current
±2.5
µA
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
= –2.5V to 3.5V
65
70
dB
CM
V = ±2.375V to ±5V
S
90
dB
A
R = 1k, V = ±3V
●
●
55
5
90
14
V/mV
V/mV
VOL
L
O
R = 100Ω, V = ±3V
L
O
V
Output Voltage Swing
Supply Current
R = 1k
●
●
●
●
±3.7
±3.9
32
V
mA
mA
µA
OUT
L
I
I
38
S
–
Shutdown Supply Current
Shutdown Pin Current
Pin 5 at V (Note 8)
1.5
20
2.5
–
Pin 5 at V
SHDN
3
LT1192
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range of 0°C ≤ TA ≤ 70°C. VS = ±5V, Pin 5 open circuit unless otherwise noted.
LT1191C
TYP
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNITS
V
Input Offset Voltage
N8 Package
SO-8 Package
●
0.4
3
4
mV
mV
OS
∆V /∆T
Input V Drift
●
●
●
●
●
2
0.2
±0.5
85
µV/°C
µA
OS
OS
I
I
Input Offset Current
1.7
OS
B
Input Bias Current
±2.5
µA
CMRR
PSRR
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
= – 2.5V to 3.5V
68
70
dB
CM
V = ±2.375V to ±5V
90
dB
S
A
R = 1k, V = ±3V
R = 100Ω, V = ±3V
●
●
90
10
140
30
V/mV
V/mV
VOL
L
O
L
O
V
Output Voltage Swing
Supply Current
R = 1k
●
●
●
●
±3.7
±3.9
32
V
mA
mA
µA
OUT
L
I
I
38
S
–
Shutdown Supply Current
Shutdown Pin Current
Pin 5 at V (Note 8)
1.4
20
2.1
–
Pin 5 at V
SHDN
Note 6: Settling time measurement techniques are shown in “Take the
Guesswork Out of Settling Time Measurements,” EDN, September 19,
Note 1: Absolute Maximum Ratings are those values beyond which the
life of the 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: Exceeding the input common mode range may cause the output
to invert.
Note 4: Slew rate is measured between ±1V on the output, with a ±0.3V
1985. A = –5, R = 1k.
V
L
Note 7: NTSC (3.58MHz). For R = 1k, Diff A = 0.1%, Diff Ph = 0.01°.
L
V
Diff A and Diff Ph can be reduced for A < 10.
V
V
Note 8: See Applications section for shutdown at elevated temperatures.
Do not operate the shutdown above T > 125°C.
J
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 parts (S suffix).
input step.
Note 5: Full-power bandwidth is calculated from the slew rate
measurement:
FPBW = SR/2πV .
P
Optional Offset Nulling Circuit
5V
3
2
7
+
6
LT1192
4
–
8
–5V
1
INPUT OFFSET VOLTAGE CAN BE ADJUSTED OVER A ±20mV
RANGE WITH A 1k TO 10k POTENTIOMETER
Ω
Ω
LT1192 • TA03
4
LT1192
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Input Bias Current
Input Bias Current
vs Temperature
Common Mode Voltage
vs Common Mode Voltage
vs Supply Voltage
4
3
–0.3
–0.4
10
8
V
S
= ±5V
V
= ±5V
S
–55°C
25°C
6
+V COMMON MODE
125°C
4
+I
2
1
B
–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
125°C
–I
125°C
–V COMMON MODE
B
–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)
LT1192 • TPC01
LT1192 • TPC02
LT1192 • TPC03
Equivalent Input Noise Voltage
vs Frequency
Equivalent Input Noise Current
vs Frequency
Supply Current vs Supply Voltage
300
250
200
150
100
50
80
60
40
40
30
20
10
0
V
T
= ±5V
= 25°C
= 0Ω
V
T
= ±5V
S
S
= 25°C
A
A
R
R
= 100k
S
S
–55°C
25°C
125°C
20
0
0
10
100
1k
10k
100k
10
100
1k
10k
100k
0
2
4
6
8
10
FREQUENCY (Hz)
FREQUENCY (Hz)
±SUPPLY VOLTAGE (V)
LT1192 • TPC04
LT1192 • TPC05
LT1192 • TPC06
Shutdown Supply Current
vs Temperature
Open-Loop Voltage Gain
vs Temperature
Open-Loop Voltage Gain
vs Load Resistance
200k
150k
100k
50k
0
200k
150k
100k
50k
0
5.0
4.5
V
S
= ±5V
V
V
T
= ±5V
= ±3V
= 25°C
V
V
= ±5V
= ±3V
S
O
A
S
O
R = 1k
L
V
= –V + 0.4V
SHDN
EE
4.0
3.5
3.0
2.5
2.0
1.5
1.0
V
= –V + 0.2V
SHDN
EE
R
= 100Ω
L
V
= –V
50
SHDN
EE
10
100
1000
–50 –25
0
25
75 100 125
–50 –25
0
25
50
75 100 125
LOAD RESISTANCE (Ω)
TEMPERATURE (°C)
TEMPERATURE (°C)
LT1192 • TPC09
LT1192 • TPC07
LT1192 • TPC08
5
LT1192
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Gain Bandwidth Product
vs Supply Voltage
Output Impedance vs Frequency
Gain, Phase vs Frequency
100
80
60
40
20
0
100
80
60
40
20
0
380
360
340
320
300
280
260
240
100
10
V
= ±5V
= 25°C
= 1k
V
= ±5V
S
A
L
S
A
T
T
= 25°C
T
A
= –55°C, 25°C, 125°C
R
PHASE
A
V
= –100
V
1
0.1
GAIN
A
= – 10
1M
0.01
–20
100k
–20
0.001
1M
10M
100M
1G
0
2
4
6
8
10
1k
10k
100k
10M
100M
FREQUENCY (Hz)
±V SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
LT1192 • TPC10
LT1192 • TPC13
LT1192 • TPC11
Common Mode Rejection Ratio
vs Frequency
Gain and Phase Margin
vs Temperature
Power Supply Rejection Ratio
vs Frequency
100
80
60
40
20
0
70
68
50
48
70
60
V
= ±5V
= 1k
V
T
= ±5V
V
V
T
= ±5V
RIPPLE
= 25°C
S
L
S
S
R
= 25°C
= ±300mV
A
R
L
= 1k
A
66
64
62
60
58
56
54
52
46
44
42
40
38
36
34
32
50
40
30
20
10
GAIN = 5 FREQUENCY
+PSRR
PHASE MARGIN
–PSRR
50
30
–50 –25
0
25
50
75 100 125
1k
100k
10k
1M
10M
100M
1M
10M
100M
1G
FREQUENCY (Hz)
TEMPERATURE (°C)
FREQUENCY (Hz)
LT1192 • TPC15
LT1192 • TPC12
LT1192 • TPC14
Output Short-Circuit Current
vs Temperature
Output Voltage Swing
vs Load Resistance
Output Swing vs Supply Voltage
100
90
10
8
5
3
R
L
= 1k
V = ±5V
S
V
= ±5V
S
+V , 25°C,
OUT
T
= –55°C
A
125°C, –55°C
6
T
= 25°C
4
A
1
2
T
= 125°C
A
0
–1
–3
–5
–2
–4
80
– V , –55°C,
OUT
25°C, 125°C
T
= 125°C
A
–6
–8
T
= –55°C, 25°C
A
70
–10
–50 –25
0
25
50
75 100 125
0
2
4
6
8
10
10
100
LOAD RESISTANCE (Ω)
1000
TEMPERATURE (°C)
±V SUPPLY VOLTAGE (V)
LT1192 • TPC16
LT1192 • TPC17
LT1192 • TPC18
6
LT1192
U W
TYPICAL PERFOR A CE CHARACTERISTICS
Output Voltage Step
vs Settling Time, AV = –5
Output Voltage Step
vs Settling Time, AV = 5
Slew Rate vs Temperature
4
2
600
500
400
300
4
2
V
T
= ±5V
= 25°C
= 1k
V
T
= ±5V
= 25°C
= 1k
S
S
A
A
R
L
R
L
–SLEW RATE
V
= ±2V
O
1mV
1mV
10mV
10mV
0
0
+SLEW RATE
10mV
1mV
10mV
1mV
–2
–4
–2
–4
V
= ±5V
= 25°C
= 1k
S
A
L
T
R
20 40
60
80 100 120 140 160
–50 –25
0
25
50
75 100 125
50
100
150
200
SETTLING TIME (ns)
TEMPERATURE (°C)
SETTLING TIME (ns)
LT1192 • TPC20
LT1192 • TPC19
LT1192 • TPC21
Large-Signal Transient Response
Small-Signal Transient Response
Output Overload
LT1192 • TPC22
LT1192 • TPC24
LT1192 • TPC23
AV = 5, CL = 10pF SCOPE PROBE
AV = 10, VIN = 1.2VP-P
AV = 5, SMALL-SIGNAL RISE TIME,
WITH FET PROBES
W U U
U
APPLICATIO S I FOR ATIO
No Supply Bypass Capacitors
Power Supply Bypassing
The LT1192 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. A
scope photo of the amplifier output with no supply by-
passing is used to demonstrate this bypassing tolerance,
RL = 1k.
In most 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
output waveform looks acceptable at 1V/DIV, when
LT1192 • TA04
AV = –5, IN DEMO BOARD, RL = 1k
7
LT1192
W U U
U
APPLICATIO S I FOR ATIO
Double Terminated Cable Driver
amplified to 1mV/DIV the settling time to 1mV is 4.132µs
forthe0.1µFbypass;thetimedropsto140nswithmultiple
bypass capacitors.
5V
3
2
7
+
CABLE
75Ω
6
LT1192
–
4
–5V
75Ω
R
FB
R
G
Settling Time Poor Bypass
Cable Driver Voltage Gain vs Frequency
24
T
= 25°C
A
A
= +10
= 910Ω
= 47Ω
V
R
FB
20
16
12
8
R
VOUT
1mV/DIV
G
VOUT
1V/DIV
A
FB
G
= +5
= 910Ω
= 100Ω
0V
0V
V
R
R
LT1192 • TA05
4
SETTLING TIME TO 1mV, AV = –1
SUPPLY BYPASS CAPACITORS = 0.1µF
0
100k
1M
10M
100M
Settling Time Good Bypass
FREQUENCY (Hz)
LT1192 • TA07
energy. The best performance can be obtained by double
termination (75Ω in series with the output of the ampli-
fier, and75Ωtogroundattheotherendofthecable). This
termination is preferred because reflected energy is
absorbed at each end of the cable. When using the double
termination technique it is important to note that the
signal is attenuated by a factor of 2, or 6dB. For a cable
driver with a gain of 5 (op amp gain of 10) the –3dB
bandwidth is 56MHz with only 0.25dB of peaking.
VOUT
1mV/DIV
VOUT
1V/DIV
0V
0V
LT1192 • TA06
SETTLING TIME TO 1mV, AV = –1
SUPPLY BYPASS CAPACITORS = 0.1µF + 4.7µF TANTALUM
Using the Shutdown Feature
The LT1192 has a unique feature that allows the amplifier
to be shut down for conserving power or for multiplexing
several amplifiers onto a common cable. The amplifier will
shutdownbytakingPin5toV–. Inshutdown, theamplifier
dissipates15mWwhilemaintainingatruehighimpedance
output state of 15kΩ in parallel with the feedback resis-
tors. The amplifiers must be used in a noninverting con-
figuration for MUX applications. In inverting configura-
tions the input signal is fed to the output through the
feedback components. When the output is loaded with as
little as 1kΩ from the amplifier’s feedback resistors, the
amplifier shuts off in 400ns. This shutoff can be under the
control of HC CMOS operating between 0V and –5V.
Cable Terminations
The LT1192 operational amplifier has been optimized as a
lowcostvideocabledriver.The±50mAguaranteedoutput
current enables the LT1192 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
8
LT1192
W U U
U
APPLICATIO S I FOR ATIO
Small-Signal Transient Response
Output Shutdown
0V
VSHDN
–5V
VOUT
LT1192 • TA08
LT1192 • TA09
1MHz SINE WAVE GATED OFF WITH
SHUTDOWN PIN, AV = 10, RL = 1k
AV = 10, SMALL-SIGNAL RISE TIME, WITH FET PROBES
Closed-Loop Voltage Gain vs Frequency
The ability to maintain shutoff is shown on the curve
Shutdown Supply Current vs Temperature in the Typical
Performance Characteristics section. At very high
elevatedtemperaturesitisimportanttoholdtheSHDNpin
close to the negative supply to keep the supply current
from increasing.
24
22
A
= 10
V
20
18
16
14
12
10
Operating with Low Closed-Loop Gains
A
= 5
V
When using decompensated amplifiers it should be real-
ized that peaking in the frequency domain, and overshoot
and ringing in the time domain occur as closed-loop gain
is lowered. The LT1192 is stable to a closed-loop gain of
5, however, peaking and ringing can be minimized by
increasing the closed-loop gain. For instance, the LT1192
peaks 5dB when used in a gain of 5, but peaks by less than
0.5dBforaclosed-loopgainof10.Likewise,theovershoot
drops from 50% to 4% for gains of 10.
100k
1M
10M
FREQUENCY (Hz)
100M
1G
LT1192 • TA10
Other precautions include:
1. Use a ground plane (see Design Note 50, High Fre-
quency Amplifier Evaluation Board).
Murphy Circuits
2. Do not use high source impedances. The input capaci-
tance of 2pF, and RS = 10k for instance, will give an
8MHz –3dB bandwidth.
There are several precautions the user should take when
using the LT1192 in order to realize its full capability.
Although the LT1192 can drive a 50pF load, isolating the
capacitance with 20Ω can be helpful. Precautions prima-
rily have to do with driving large capacitive loads.
3. PC board socket may reduce stability.
4. A feedback resistor of 1k or lower reduces the effects of
stray capacitance at the inverting input.
9
LT1192
W U U
U
APPLICATIO S I FOR ATIO
Driving Capacitive Load
Driving Capacitive Load
LT1192 • TA11
LT1192 • TA12
AV = –5, IN DEMO BOARD, CL = 50pF
AV = –5, IN DEMO BOARD, CL = 50pF
WITH 20Ω ISOLATING RESISTOR
Murphy Circuits
5V
5V
3
3
7
+
7
+
LT1192
COAX
6
6
LT1192
2
2
–
4
–
4
1X SCOPE
PROBE
–5V
–5V
An Unterminated Cable Is
a Large Capacitive Load
A 1X Scope Probe Is a
Large Capacitive Load
5V
3
7
+
+
6
LT1192
LT1192
2
–
4
–
–5V
SCOPE
PROBE
LT1192 • TA13
A Scope Probe on the Inverting
Input Reduces Phase Margin
LT1192 Is Stable for Gains ≥ 5V/V
10
LT1192
W
W
SI PLIFIED SCHE ATIC
+
7
V
V
V
BIAS
BIAS
C
M
+
3
C
FF
2
–
V
6
+V
+V
OUT
*
–
4
V
LT1191 • TA14
5
1
8
SHDN
BAL
BAL
*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
LT1192
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
LT1221
High Speed Operational Amplifier
High Speed Operational Amplifier
High Speed Operational Amplifier
150MHz Gain Bandwidth, 200V/µs Slew Rate, e = 6nV/√Hz
n
LT1222
500MHz Gain Bandwidth, 200V/µs Slew Rate, e = 3nV/√Hz
n
LT1225
150MHz Gain Bandwidth, 400V/µs Slew Rate, I = 7mA
S
1192fa LT/CP 0801 1.5K REV A • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
12
●
●
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
LINEAR TECHNOLOGY CORPORATION 1991
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