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Электронный компонент: LT1812CS5

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1
LT1812
3mA, 100MHz, 750V/
s
Operational Amplifier
with Shutdown
s
Wideband Amplifiers
s
Buffers
s
Active Filters
s
Video and RF Amplification
s
Cable Drivers
s
Data Acquisition Systems
The LT
1812 is a low power, high speed, very high slew
rate operational amplifier with excellent DC performance.
The LT1812 features reduced supply current, lower input
offset voltage, lower input bias current and higher DC gain
than other devices with comparable bandwidth. A power
saving shutdown feature reduces supply current to 50
A.
The circuit topology is a voltage feedback amplifier with
the slewing characteristics of a current feedback amplifier.
The output drives a 100
load to
3.5V with
5V supplies.
On a single 5V supply, the output swings from 1.1V to 3.9V
with a 100
load connected to 2.5V. The amplifier is stable
with a 1000pF capacitive load which makes it useful in
buffer and cable driver applications.
The LT1812 is manufactured on Linear Technology's
advanced low voltage complementary bipolar process.
The dual version is the LT1813. For higher supply voltage
single, dual and quad operational amplifiers with up to
70MHz gain bandwidth, see the LT1351 through LT1365
data sheets.
4MHz, 4th Order Butterworth Filter
Filter Frequency Response
FREQUENCY (MHz)
0.1
50
VOLTAGE GAIN (dB)
40
30
20
10
1
10
100
1812 TA02
60
70
80
90
0
10
V
S
=
5V
V
IN
= 600mV
P-P
PEAKING < 0.12dB
+
LT1812
220pF
V
IN
665
232
47pF
232
+
LT1812
470pF
1812 TA01
V
OUT
562
274
22pF
274
, LTC and LT are registered trademarks of Linear Technology Corporation.
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
DESCRIPTIO
U
s
100MHz Gain Bandwidth
s
750V/
s Slew Rate
s
3.6mA Maximum Supply Current
s
Available in SOT-23 and S8 Packages
s
50
A Supply Current in Shutdown
s
8nV/
Hz Input Noise Voltage
s
Unity-Gain Stable
s
1.5mV Maximum Input Offset Voltage
s
4
A Maximum Input Bias Current
s
400nA Maximum Input Offset Current
s
40mA Minimum Output Current, V
OUT
=
3V
s
3.5V Minimum Input CMR, V
S
=
5V
s
30ns Settling Time to 0.1%, 5V Step
s
Specified at
5V, Single 5V Supplies
s
Operating Temperature Range: 40
C to 85
C
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2
LT1812
Total Supply Voltage (V
+
to V
) ............................. 12.6V
Differential Input Voltage (Transient Only, Note 2) ...
3V
Input Voltage, Shutdown Voltage .............................
V
S
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 8) ... 40
C to 85
C
Consult factory for Military grade parts.
T
JMAX
= 150
C,
JA
= 150
C/ W
(NOTE 9)
1
2
3
4
8
7
6
5
TOP VIEW
SHDN
V
+
V
OUT
NC
NC
IN
+IN
V
S8 PACKAGE
8-LEAD PLASTIC SO
+
ABSOLUTE AXI U RATI GS
W
W
W
U
PACKAGE/ORDER I FOR ATIO
U
U
W
Specified Temperature Range
(Note 8) .............................................. 40
C to 85
C
Maximum Junction Temperature ......................... 150
C
Storage Temperature Range .................. 65
C to 150
C
Lead Temperature (Soldering, 10 sec)................... 300
C
(Note 1)
ORDER PART
NUMBER
LT1812CS8
LT1812IS8
S8 PART
MARKING
1812
1812I
ORDER PART
NUMBER
LT1812CS6
LT1812IS6
S6 PART
MARKING
LTLK
LTLL
ORDER PART
NUMBER
LT1812CS5
LT1812IS5
S5 PART
MARKING
LTLH
LTLJ
T
JMAX
= 150
C,
JA
= 250
C/ W
(NOTE 9)
T
JMAX
= 150
C,
JA
= 230
C/ W
(NOTE 9)
V
2
5 V
+
4 IN
V
OUT
1
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC SOT-23
+IN 3
+
V
OUT
1
V
2
+IN 3
6 V
+
5 SHDN
4 IN
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC SOT-23
+
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
0.4
1.5
mV
I
OS
Input Offset Current
30
400
nA
I
B
Input Bias Current
0.9
4
A
e
n
Input Noise Voltage Density
f = 10kHz
8
nV/
Hz
i
n
Input Noise Current Density
f = 10kHz
1
pA/
Hz
R
IN
Input Resistance
V
CM
=
3.5V
3
10
M
Differential
1.5
M
C
IN
Input Capacitance
2
pF
V
CM
Input Voltage Range (Positive)
3.5
4.2
V
Input Voltage Range (Negative)
4.2
3.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
3.5V
75
85
dB
Minimum Supply Voltage
1.25
2
V
PSRR
Power Supply Rejection Ratio
V
S
=
2V to
5.5V
78
97
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
3V, R
L
= 500
1.5
3.0
V/mV
V
OUT
=
3V, R
L
= 100
1.0
2.5
V/mV
V
OUT
Maximum Output Swing
R
L
= 500
, 30mV Overdrive
3.80
4.0
V
R
L
= 100
, 30mV Overdrive
3.35
3.5
V
I
OUT
Maximum Output Current
V
OUT
=
3V, 30mV Overdrive
40
60
mA
I
SC
Output Short-Circuit Current
V
OUT
= 0V, 1V Overdrive (Note 3)
75
110
mA
SR
Slew Rate
A
V
= 1 (Note 5)
500
750
V/
s
T
A
= 25
C, V
S
=
5V, V
CM
= 0V unless otherwise noted (Note 10).
ELECTRICAL CHARACTERISTICS
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3
LT1812
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FPBW
Full Power Bandwidth
3V Peak (Note 6)
40
MHz
GBW
Gain Bandwidth Product
f = 200kHz
75
100
MHz
t
r
, t
f
Rise Time, Fall Time
A
V
= 1, 10% to 90%, 0.1V, R
L
= 100
2
ns
OS
Overshoot
A
V
= 1, 0.1V, R
L
= 100
25
%
t
PD
Propagation Delay
A
V
= 1, 50% V
IN
to 50% V
OUT
, 0.1V, R
L
= 100
2.8
ns
t
s
Settling Time
5V Step, 0.1%, A
V
= 1
30
ns
THD
Total Harmonic Distortion
f = 1MHz, V
OUT
= 2V
P-P
, A
V
= 2, R
L
= 500
76
dB
Differential Gain
V
OUT
= 2V
P-P
, A
V
= 2, R
L
= 150
0.12
%
Differential Phase
V
OUT
= 2V
P-P
, A
V
= 2, R
L
= 150
0.07
DEG
R
OUT
Output Resistance
A
V
= 1, f = 1MHz
0.4
I
SHDN
SHDN Pin Current
SHDN > V
+ 2.0V (On) (Note 11)
0
1
A
SHDN < V
+ 0.4V (Off) (Note 11)
100
50
A
I
S
Supply Current
SHDN > V
+ 2.0V (On) (Note 11)
3
3.6
mA
SHDN < V
+ 0.4V (Off) (Note 11)
50
100
A
T
A
= 25
C, V
S
=
5V, V
CM
= 0V unless otherwise noted (Note 10).
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
0.5
2.0
mV
I
OS
Input Offset Current
30
400
nA
I
B
Input Bias Current
1.0
4
A
e
n
Input Noise Voltage Density
f = 10kHz
8
nV/
Hz
i
n
Input Noise Current Density
f = 10kHz
1
pA/
Hz
R
IN
Input Resistance
V
CM
= 1.5V to 3.5V
3
10
M
Differential
1.5
M
C
IN
Input Capacitance
2
pF
V
CM
Input Voltage Range (Positive)
3.5
4
V
Input Voltage Range (Negative)
1
1.5
V
CMRR
Common Mode Rejection Ratio
V
CM
= 1.5V to 3.5V
73
82
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
= 1.5V to 3.5V, R
L
= 500
1.0
2.0
V/mV
V
OUT
= 1.5V to 3.5V, R
L
= 100
0.7
1.5
V/mV
V
OUT
Maximum Output Swing (Positive)
R
L
= 500
, 30mV Overdrive
3.9
4.1
V
R
L
= 100
, 30mV Overdrive
3.7
3.9
V
Maximum Output Swing (Negative)
R
L
= 500
, 30mV Overdrive
0.9
1.1
V
R
L
= 100
, 30mV Overdrive
1.1
1.3
V
I
OUT
Maximum Output Current
V
OUT
= 3.5V or 1.5V, 30mV Overdrive
25
40
mA
I
SC
Output Short-Circuit Current
V
OUT
= 2.5V, 1V Overdrive (Note 3)
55
80
mA
SR
Slew Rate
A
V
= 1 (Note 5)
200
350
V/
s
FPBW
Full Power Bandwidth
1V Peak (Note 6)
55
MHz
GBW
Gain Bandwidth Product
f = 200kHz
65
94
MHz
t
r
, t
f
Rise Time, Fall Time
A
V
= 1, 10% to 90%, 0.1V, R
L
= 100
2.1
ns
OS
Overshoot
A
V
= 1, 0.1V, R
L
= 100
25
%
t
PD
Propagation Delay
A
V
= 1, 50% V
IN
to 50% V
OUT
, 0.1V, R
L
= 100
3
ns
t
s
Settling Time
2V Step, 0.1%, A
V
= 1
30
ns
THD
Total Harmonic Distortion
f = 1MHz, V
OUT
= 2V
P-P
, A
V
= 2, R
L
= 500
75
dB
Differential Gain
V
OUT
= 2V
P-P
, A
V
= 2, R
L
= 150
0.22
%
Differential Phase
V
OUT
= 2V
P-P
, A
V
= 2, R
L
= 150
0.21
DEG
T
A
= 25
C, V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V unless otherwise noted (Note 10).
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4
LT1812
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
R
OUT
Output Resistance
A
V
= 1, f = 1MHz
0.45
I
SHDN
SHDN Pin Current
SHDN > V
+ 2.0V (On) (Note 11)
0
1
A
SHDN < V
+ 0.4V (Off) (Note 11)
50
20
A
I
S
Supply Current
SHDN > V
+ 2.0V (On) (Note 11)
2.7
3.6
mA
SHDN < V
+ 0.4V (Off) (Note 11)
20
50
A
T
A
= 25
C, V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V unless otherwise noted (Note 10).
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
2
mV
V
OS
/
T
Input Offset Voltage Drift
(Note 7)
10
15
V/
C
I
OS
Input Offset Current
500
nA
I
B
Input Bias Current
5
A
V
CM
Input Voltage Range (Positive)
3.5
V
Input Voltage Range (Negative)
3.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
3.5V
73
dB
Minimum Supply Voltage
2
V
PSRR
Power Supply Rejection Ratio
V
S
=
2V to
5.5V
76
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
3V, R
L
= 500
1.0
V/mV
V
OUT
=
3V, R
L
= 100
0.7
V/mV
V
OUT
Maximum Output Swing
R
L
= 500
, 30mV Overdrive
3.70
V
R
L
= 100
, 30mV Overdrive
3.25
V
I
OUT
Maximum Output Current
V
OUT
=
3V, 30mV Overdrive
35
mA
I
SC
Output Short-Circuit Current
V
OUT
= 0V, 1V Overdrive (Note 3)
60
mA
SR
Slew Rate
A
V
= 1 (Note 5)
400
V/
s
GBW
Gain Bandwidth Product
f = 200kHz
65
MHz
I
SHDN
SHDN Pin Current
SHDN > V
+ 2.0V (On) (Note 11)
1.5
A
SHDN < V
+ 0.4V (Off) (Note 11)
150
A
I
S
Supply Current
SHDN > V
+ 2.0V (On) (Note 11)
4.6
mA
SHDN < V
+ 0.4V (Off) (Note 11)
150
A
0
C
T
A
70
C, V
S
=
5V, V
CM
= 0V unless otherwise noted (Note 10).
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5
LT1812
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
2.5
mV
V
OS
/
T
Input Offset Voltage Drift
(Note 7)
10
15
V/
C
I
OS
Input Offset Current
500
nA
I
B
Input Bias Current
5
A
V
CM
Input Voltage Range (Positive)
3.5
V
Input Voltage Range (Negative)
1.5
V
CMRR
Common Mode Rejection Ratio
V
CM
= 1.5V to 3.5V
71
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
= 1.5V to 3.5V, R
L
= 500
0.7
V/mV
V
OUT
= 1.5V to 3.5V, R
L
= 100
0.5
V/mV
V
OUT
Maximum Output Swing (Positive)
R
L
= 500
, 30mV Overdrive
3.8
V
R
L
= 100
, 30mV Overdrive
3.6
V
Maximum Output Swing (Negative)
R
L
= 500
, 30mV Overdrive
1.2
V
R
L
= 100
, 30mV Overdrive
1.4
V
I
OUT
Maximum Output Current
V
OUT
= 3.5V or 1.5V, 30mV Overdrive
20
mA
I
SC
Output Short-Circuit Current
V
OUT
= 2.5V, 1V Overdrive (Note 3)
45
mA
SR
Slew Rate
A
V
= 1 (Note 5)
150
V/
s
GBW
Gain Bandwidth Product
f = 200kHz
55
MHz
I
SHDN
SHDN Pin Current
SHDN > V
+ 2.0V (On) (Note 11)
1.5
A
SHDN < V
+ 0.4V (Off) (Note 11)
75
A
I
S
Supply Current
SHDN > V
+ 2.0V (On) (Note 11)
4.5
mA
SHDN < V
+ 0.4V (Off) (Note 11)
75
A
40
C
T
A
85
C. V
S
=
5V, V
CM
= 0V unless otherwise noted (Notes 8, 10).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
3
mV
V
OS
/
T
Input Offset Voltage Drift
(Note 7)
10
30
V/
C
I
OS
Input Offset Current
600
nA
I
B
Input Bias Current
6
A
V
CM
Input Voltage Range (Positive)
3.5
V
Input Voltage Range (Negative)
3.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
3.5V
72
dB
Minimum Supply Voltage
2
V
PSRR
Power Supply Rejection Ratio
V
S
=
2V to
5.5V
75
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
3V, R
L
= 500
0.8
V/mV
V
OUT
=
3V, R
L
= 100
0.6
V/mV
V
OUT
Maximum Output Swing
R
L
= 500
, 30mV Overdrive
3.60
V
R
L
= 100
, 30mV Overdrive
3.15
V
I
OUT
Maximum Output Current
V
OUT
=
3V, 30mV Overdrive
30
mA
I
SC
Output Short-Circuit Current
V
OUT
= 0V, 1V Overdrive (Note 3)
55
mA
SR
Slew Rate
A
V
= 1 (Note 5)
350
V/
s
GBW
Gain Bandwidth Product
f = 200kHz
60
MHz
I
SHDN
SHDN Pin Current
SHDN > V
+ 2.0V (On) (Note 11)
2
A
SHDN < V
+ 0.4V (Off) (Note 11)
200
A
I
S
Supply Current
SHDN > V
+ 2.0V (On) (Note 11)
5
mA
SHDN < V
+ 0.4V (Off) (Note 11)
200
A
0
C
T
A
70
C, V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V unless otherwise noted (Note 10).