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Электронный компонент: LT1367

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1
LT1366/LT1367
LT1368/LT1369
Dual and Quad Precision
Rail-to-Rail Input and Output
Op Amps
DESCRIPTIO
N
U
s
Input Common Mode Range Includes Both Rails
s
Output Swings Rail-to-Rail
s
Low Input Offset Voltage: 150
V
s
High Common Mode Rejection Ratio: 90dB
s
High A
VOL
: >1V/
V Driving 10k
Load
s
Low Input Bias Current: 10nA
s
Wide Supply Range: 1.8V to
15V
s
Low Supply Current: 375
A per Amplifier
s
High Output Drive: 30mA
s
400kHz Gain-Bandwidth Product
s
Slew Rate: 0.13V/
s
s
Stable for Capacitive Loads up to 1000pF
The LT
1366/LT1367/LT1368/LT1369 are dual and quad
bipolar op amps which combine rail-to-rail input and
output operation with precision specifications. These op
amps maintain their characteristics over a supply range of
1.8V to 36V. Operation is specified for 3V, 5V and
15V
supplies. Input offset voltage is typically 150
V, with an
open-loop gain A
VOL
of 1 million while driving a 10k load.
Common mode rejection is typically 90dB over the full rail-
to-rail input range, and supply rejection is 110dB.
The LT1366/LT1367 have conventional compensation
which assures stability for capacitive loads of 1000pF or
less. The LT1368/LT1369 have compensation that
requires a 0.1
F output capacitor, which improves the
amplifier's supply rejection and reduces output imped-
ance at high frequencies. The output capacitor's filtering
action reduces high frequency noise, which is beneficial
when driving A/D converters.
The LT1366/LT1368 are available in plastic 8-pin PDIP and
8-lead SO packages with the standard dual op amp pinout.
The LT1367/LT1369 feature the standard quad pinout,
which is available in a plastic 14-lead SO package. These
devices can be used as plug-in replacements for many
standard op amps to improve input/output range and
precision.
FEATURES
s
Rail-to-Rail Buffer Amplifiers
s
Low Voltage Signal Processing
s
Supply Current Sensing at Either Rail
s
Driving A/D Converters
APPLICATIO
N
S
U
Positive Supply Rail Current Sense
Output Saturation Voltage vs Load Current
LOAD CURRENT (mA)
SATURATION VOLTAGE (mV)
V
OUT
V
S
0.001
0.1
1
10
1366 TA02
0.01
1000
100
10
1
POSITIVE
RAIL
NEGATIVE
RAIL
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
N
U
+
1/2 LT1366
R1
200
1366 TA01
LOAD
I
LOAD
Rs
0.2
R2
20k
Q1
TP0610L
V
CC
V
O
= I
LOAD
R
S
= I
LOAD
20
( )
+
1/2 LT1366
R2
R1
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2
LT1366/LT1367
LT1368/LT1369
ABSOLUTE
M
AXI
M
U
M
RATINGS
W
W
W
U
Total Supply Voltage (V
+
to V
) ............................. 36V
Input Current .....................................................
15mA
Output Short-Circuit Duration (Note 1) ........ Continuous
Operating Temperature Range .............. 40
C to 85
C
Junction Temperature .......................................... 150
C
Storage Temperature Range ................ 65
C to 150
C
Lead Temperature (Soldering, 10 sec)................. 300
C
PACKAGE/ORDER I
N
FOR
M
ATIO
N
W
U
U
ORDER PART
NUMBER
T
JMAX
= 150
C,
JA
= 130
C/ W (N8)
T
JMAX
= 150
C,
JA
= 190
C/ W (S8)
1
2
3
4
8
7
6
5
TOP VIEW
OUT A
IN A
+IN A
V
V
+
OUT B
IN B
+IN B
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
A
B
LT1366CN8
LT1366CS8
LT1368CN8
LT1368CS8
S8 PART MARKING
1366
1368
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT A
IN A
+IN A
V
+
+IN B
IN B
OUT B
OUT D
IN D
+IN D
V
+IN C
IN C
OUT C
A
B
D
C
T
JMAX
= 150
C,
JA
= 150
C/ W
ORDER PART
NUMBER
LT1367CS
LT1369CS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage (LT1366/LT1368)
V
CM
= V
CC
150
475
V
V
CM
= V
EE
150
475
V
Input Offset Voltage (LT1367/LT1369)
V
CM
= V
CC
150
800
V
V
CM
= V
EE
150
700
V
V
OS
Input Offset Voltage Shift (LT1366/LT1368)
V
CM
= V
EE
to V
CC
150
400
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
250
700
V
Input Offset Voltage Shift (LT1367/LT1369)
V
CM
= V
EE
to V
CC
150
650
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
250
1600
V
I
B
Input Bias Current
V
CM
= V
CC
0
10
35
nA
V
CM
= V
EE
35
10
0
nA
I
B
Input Bias Current Shift
V
CM
= V
EE
to V
CC
20
70
nA
T
A
= 25
C, V
S
= 5V, 0V, V
CM
= 2.5V, V
O
= 2.5V, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
MAX V
OS
(25
C) ORDER PART NUMBER
PRODUCT NUMBER
NUMBER OF OP AMPS
LOAD CAPACITANCE
AT V
S
= 5V, 0V
PLASTIC (N)
SURFACE MOUNT(S)
LT1366
2
OpF < C
L
< 1000pF
475
V
LT1366CN8
LT1366CS8
LT1367
4
OpF < C
L
< 1000pF
800
V
LT1367CS
LT1368
2
C
L
= 0.1
F
475
V
LT1368CN8
LT1368CS8
LT1369
4
C
L
= 0.1
F
800
V
LT1369CS
AVAILABLE OPTIO S
U
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3
LT1366/LT1367
LT1368/LT1369
T
A
= 25
C, V
S
= 5V, 0V, V
CM
= 2.5V, V
O
= 2.5V, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I
OS
Input Offset Current
V
CM
= V
CC
1
12
nA
V
CM
= V
EE
0.3
12
nA
I
OS
Input Offset Current Shift
V
CM
= V
EE
to V
CC
1
12
nA
Input Bias Current Match (Channel to Channel)
V
CM
= V
CC
(Note 3)
0
1
12
nA
V
CM
= V
EE
(Note 3)
0
1
12
nA
e
n
Input Noise Voltage Density
f = 1kHz
29
nV/
Hz
i
n
Input Noise Current Density
f = 1kHz
0.07
pA/
Hz
C
IN
Input Capacitance
12
pF
A
VOL
Large-Signal Voltage Gain
V
O
= 50mV to 4.8V, R
L
= 10k
250
2000
V/mV
CMRR
Common Mode Rejection Ratio (LT1366/LT1368)
V
CM
= V
EE
to V
CC
81
90
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
75
90
dB
Common Mode Rejection Ratio (LT1367/LT1369)
V
CM
= V
EE
to V
CC
77
90
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
71
90
dB
PSRR
Power Supply Rejection Ratio
V
S
= 2.0V to 12V, V
CM
= V
O
= 0.5V
90
105
dB
PSRR Match (Channel to Channel) (Note 3)
V
S
= 2.0V to 12V, V
CM
= V
O
= 0.5V
84
100
dB
V
OL
Output Voltage Swing LOW
No Load
6
12
mV
I
SINK
= 0.5mA
40
70
mV
I
SINK
= 2.5mA
110
200
mV
V
OH
Output Voltage Swing HIGH
No Load
V
CC
0.012 V
CC
0.004
V
I
SOURCE
= 0.5mA
V
CC
0.100 V
CC
0.050
V
I
SOURCE
= 2.5mA
V
CC
0.250 V
CC
0.150
V
I
SC
Short-Circuit Current
(Note 1)
15
30
mA
I
S
Supply Current per Amplifier
340
520
A
GBW
Gain-Bandwidth Product (LT1366/LT1367)
A
V
= 1000
0.4
MHz
Gain-Bandwidth Product (LT1368/LT1369)
A
V
= 1000
0.16
MHz
t
S
Settling Time (LT1366/LT1367)
A
V
= 1, V
STEP
= 4V to 0.1%
30
s
0
C < T
A
< 70
C, V
S
= 5V, 0V, V
CM
= 2.5V, V
O
= 2.5V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage (LT1366/LT1368)
V
CM
= V
CC
q
200
575
V
V
CM
= V
EE
q
200
575
V
Input Offset Voltage (LT1367/LT1369)
V
CM
= V
CC
q
200
950
V
V
CM
= V
EE
q
200
900
V
V
OS
TC
Input Offset Voltage Drift
(Note 2)
q
2
6
V/
C
V
OS
Input Offset Voltage Shift (LT1366/LT1368)
V
CM
= V
EE
to V
CC
q
200
425
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
q
250
900
V
Input Offset Voltage Shift (LT1367/LT1369)
V
CM
= V
EE
to V
CC
q
200
675
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
q
250
1900
V
I
B
Input Bias Current
V
CM
= V
CC
q
0
15
45
nA
V
CM
= V
EE
q
45
10
0
nA
I
B
Input Bias Current Shift
V
CM
= V
EE
to V
CC
q
25
90
nA
I
OS
Input Offset Current
V
CM
= V
CC
q
2
15
nA
V
CM
= V
EE
q
1
15
nA
I
OS
Input Offset Current Shift
V
CM
= V
EE
to V
CC
q
2
15
nA
Input Bias Current Match (Channel to Channel)
V
CM
= V
CC
(Note 3)
q
0
2
15
nA
V
CM
= V
EE
(Note 3)
q
0
1
15
nA
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4
LT1366/LT1367
LT1368/LT1369
ELECTRICAL CHARACTERISTICS
0
C < T
A
< 70
C, V
S
= 5V, 0V, V
CM
= 2.5V, V
O
= 2.5V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
A
VOL
Large-Signal Voltage Gain
V
O
= 50mV to 4.8V, R
L
= 10k
q
250
2000
V/mV
CMRR
Common Mode Rejection Ratio (LT1366/LT1368)
V
CM
= V
EE
to V
CC
q
80
87
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
q
74
87
dB
Common Mode Rejection Ratio (LT1367/LT1369)
V
CM
= V
EE
to V
CC
q
77
87
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
q
71
87
dB
PSRR
Power Supply Rejection Ratio
V
S
= 2.3V to 12V, V
CM
= V
O
= 0.5V
q
88
105
dB
PSRR Match (Channel to Channel) (Note 3)
V
S
= 2.3V to 12V, V
CM
= V
O
= 0.5V
q
82
100
dB
V
OL
Output Voltage Swing LOW
No Load
q
9
14
mV
I
SINK
= 0.5mA
q
45
80
mV
I
SINK
= 2.5mA
q
120
230
mV
V
OH
Output Voltage Swing HIGH
No Load
q
V
CC
0.014 V
CC
0.005
V
I
SOURCE
= 0.5mA
q
V
CC
0.110 V
CC
0.055
V
I
SOURCE
= 2.5mA
q
V
CC
0.300 V
CC
0.180
V
I
SC
Short-Circuit Current
(Note 1)
q
12.5
mA
I
S
Supply Current per Amplifier
q
385
540
A
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage (LT1366/LT1368)
V
CM
= V
CC
150
475
V
V
CM
= V
EE
150
475
V
Input Offset Voltage (LT1367/LT1369)
V
CM
= V
CC
150
850
V
V
CM
= V
EE
150
750
V
V
OS
Input Offset Voltage Shift (LT1366/LT1368)
V
CM
= V
EE
to V
CC
150
400
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
250
700
V
Input Offset Voltage Shift (LT1367/LT1369)
V
CM
= V
EE
to V
CC
150
650
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
250
1700
V
I
B
Input Bias Current
V
CM
= V
CC
0
10
35
nA
V
CM
= V
EE
35
10
0
nA
I
B
Input Bias Current Shift
V
CM
= V
EE
to V
CC
20
70
nA
I
OS
Input Offset Current
V
CM
= V
CC
1.0
12
nA
V
CM
= V
EE
0.3
12
nA
I
OS
Input Offset Current Shift
V
CM
= V
EE
to V
CC
1
12
nA
Input Bias Current Match (Channel to Channel)
V
CM
= V
CC
(Note 3)
0
1
12
nA
V
CM
= V
EE
(Note 3)
0
1
12
nA
A
VOL
Large-Signal Voltage Gain
V
O
= 50mV to 2.8V, R
L
= 10k
250
1500
V/mV
CMRR
Common Mode Rejection Ratio (LT1366/LT1368)
V
CM
= V
EE
to V
CC
77
86
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
71
86
dB
Common Mode Rejection Ratio (LT1367/LT1369)
V
CM
= V
EE
to V
CC
73
86
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
67
86
dB
V
OL
Output Voltage Swing LOW
No Load
6
12
mV
I
SINK
= 0.5mA
40
70
mV
I
SINK
= 2.5mA
110
200
mV
V
OH
Output Voltage Swing HIGH
No Load
V
CC
0.012 V
CC
0.004
V
I
SOURCE
= 0.5mA
V
CC
0.100 V
CC
0.050
V
I
SOURCE
= 2.5mA
V
CC
0.250 V
CC
0.150
V
I
SC
Short-Circuit Current
(Note 1)
10
20
mA
I
S
Supply Current per Amplifier
330
500
A
T
A
= 25
C, V
S
= 3V, 0V, V
CM
= 1.5V, V
O
= 1.5V, unless otherwise noted.
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5
LT1366/LT1367
LT1368/LT1369
ELECTRICAL CHARACTERISTICS
0
C < T
A
< 70
C, V
S
= 3V, 0V, V
CM
= 1.5V, V
O
= 1.5V, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage (LT1366/LT1368)
V
CM
= V
CC
q
200
575
V
V
CM
= V
EE
q
200
575
V
Input Offset Voltage (LT1367/LT1369)
V
CM
= V
CC
q
200
950
V
V
CM
= V
EE
q
200
900
V
V
OS
Input Offset Voltage Shift (LT1366/LT1368)
V
CM
= V
EE
to V
CC
q
200
425
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
q
250
900
V
Input Offset Voltage Shift (LT1367/LT1369)
V
CM
= V
EE
to V
CC
q
200
675
V
Input Offset Voltage Match (Channel to Channel)
V
CM
= V
EE
, V
CC
(Notes 3, 4)
q
250
1900
V
V
OS
TC
Input Offset Voltage Drift
(Note 2)
q
2
6
V/
C
I
B
Input Bias Current
V
CM
= V
CC
q
0
15
45
nA
V
CM
= V
EE
q
45
10
0
nA
I
B
Input Bias Current Shift
V
CM
= V
EE
to V
CC
q
25
90
nA
I
OS
Input Offset Current
V
CM
= V
CC
q
2
15
nA
V
CM
= V
EE
q
1
15
nA
I
OS
Input Offset Current Shift
V
CM
= V
EE
to V
CC
q
2
15
nA
Input Bias Current Match (Channel to Channel)
V
CM
= V
CC
(Note 3)
q
0
2
15
nA
V
CM
= V
EE
(Note 3)
q
0
1
15
nA
A
VOL
Large-Signal Voltage Gain
V
O
= 50mV to 2.8V, R
L
= 10k
q
150
1500
V/mV
CMRR
Common Mode Rejection Ratio (LT1366/LT1368)
V
CM
= V
EE
to V
CC
q
76
83
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
q
70
83
dB
Common Mode Rejection Ratio (LT1367 /LT1369) V
CM
= V
EE
to V
CC
q
72
83
dB
CMRR Match (Channel to Channel)
V
CM
= V
EE
to V
CC
(Note 3)
q
66
83
dB
V
OL
Output Voltage Swing LOW
No Load
q
9
14
mV
I
SINK
= 0.5mA
q
45
80
mV
I
SINK
= 2.5mA
q
120
230
mV
V
OH
Output Voltage Swing HIGH
No Load
q
V
CC
0.014 V
CC
0.005
V
I
SOURCE
= 0.5mA
q
V
CC
0.110 V
CC
0.055
V
I
SOURCE
= 2.5mA
q
V
CC
0.300 V
CC
0.180
V
I
SC
Short-Circuit Current
(Note 1)
q
10
mA
I
S
Supply Current per Amplifier
q
375
520
A