FEATURES
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LT1809/LT1810
Single/Dual 180MHz, 350V/µs
Rail-to-Rail Input and Output
Low Distortion Op Amps
DESCRIPTION
The LT
®
1809/LT1810 are single/dual low distortion rail-to-
rail input and output op amps with a 350V/μs slew rate.
These amplifiers have a –3dB bandwidth of 320MHz at
unity-gain, a gain-bandwidth product of 180MHz (A
V
≥ 10)
and an 85mA output current to fit the needs of low voltage,
high performance signal conditioning systems.
The LT1809/LT1810 have an input range that includes
both supply rails and an output that swings within 20mV
of either supply rail to maximize the signal dynamic range
in low supply applications.
The LT1809/LT1810 have very low distortion (–90dBc) up
to 5MHz that allows them to be used in high performance
data acquisition systems.
The LT1809/LT1810 maintain their performance for supplies
from 2.5V to 12.6V and are specified at 3V, 5V and ± 5V
supplies. The inputs can be driven beyond the supplies
without damage or phase reversal of the output.
The LT1809 is available in the 8-pin SO package with the
standard op amp pinout and the 6-pin SOT-23 package.
The LT1810 features the standard dual op amp pinout and
is available in 8-pin SO and MSOP packages. These devices
can be used as a plug-in replacement for many op amps
to improve input/output range and performance.
–3dB Bandwidth: 320MHz, A
V
= 1
Gain-Bandwidth Product: 180MHz, A
V
≥ 10
Slew Rate: 350V/μs
Wide Supply Range: 2.5V to 12.6V
Large Output Current: 85mA
Low Distortion, 5MHz: – 90dBc
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Input Offset Voltage, Rail-to-Rail: 2.5mV Max
Common Mode Rejection: 89dB Typ
Power Supply Rejection: 87dB Typ
Open-Loop Gain: 100V/mV Typ
Shutdown Pin: LT1809
Single in 8-Pin SO and 6-Pin SOT-23 Packages
Dual in 8-Pin SO and MSOP Packages
Operating Temperature Range: –40°C to 85°C
Low Profile (1mm) SOT-23 (ThinSOT™) Package
APPLICATIONS
n
n
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Driving A/D Converters
Low Voltage Signal Processing
Active Filters
Rail-to-Rail Buffer Amplifiers
Video Line Driver
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
TYPICAL APPLICATION
High Speed ADC Driver
5V
5V
V
IN
1V
P-P
DISTORTION (dB)
–40
–50
–60
–70
–80
–90
Distortion vs Frequency
A
V
= +1
V
IN
= 2V
P-P
V
S
= ±5V
+
LT1809
R3
49.9Ω
+A
IN
C1
470pF
–5V
R2
1k
–A
IN
–
LTC
®
1420
PGA GAIN = 1
REF = 2.048V
•
•
•
12 BITS
10Msps
R
L
= 100Ω, 2ND
1809 TA01a
–5V
R1
1k
R
L
= 100Ω, 3RD
–100
–110
0.3
R
L
= 1k, 3RD
R
L
= 1k, 2ND
1
FREQUENCY (MHz)
10
30
1809 TA01b
180910fa
1
LT1809/LT1810
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V
+
to V
–
) ............................. 12.6V
Input Voltage (Note 2) ............................................... ±V
S
Input Current (Note 2) ......................................... ±10mA
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4) ...– 40°C to 85°C
Specified Temperature Range (Note 5) ....–40°C to 85°C
Junction Temperature ........................................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
OUT 1
V
–
2
+IN 3
6 V
+
5
SHDN
4 –IN
SHDN
1
–IN 2
+IN 3
V
–
4
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 145°C/W (Note 9)
–
+
8
7
6
5
NC
V+
OUT
NC
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W (Note 9)
TOP VIEW
TOP VIEW
OUT A
–IN A
+IN A
V
–
1
2
3
4
8 V
+
7 OUT B
6 –IN B
5 +IN B
OUT A 1
–IN A 2
+IN A 3
V
–
4
B
A
8 V
+
7 OUT B
6 –IN B
5 +IN B
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 130°C/W (Note 9)
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W (Note 9)
ORDER INFORMATION
LEAD FREE FINISH
LT1809CS6#PBF
LT1809IS6#PBF
LT1809CS8#PBF
LT1809IS8#PBF
LT1810CMS8#PBF
LT1810IMS8#PBF
LT1810CS8#PBF
LT1810IS8#PBF
TAPE AND REEL
LT1809CS6#TRPBF
LT1809IS6#TRPBF
LT1809CS8#TRPBF
LT1809IS8#TRPBF
LT1810CMS8#TRPBF
LT1810IMS8#TRPBF
LT1810CS8#TRPBF
LT1810IS8#TRPBF
PART MARKING
LTKY
LTUF
1809
1809I
LTRF
LTTQ
1810
1810I
PACKAGE DESCRIPTION
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic SO
8-Lead Plastic SO
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
180910fa
2
LT1809/LT1810
ELECTRICAL CHARACTERISTICS
unless otherwise noted.
PARAMETER
Input Offset Voltage
SYMBOL
V
OS
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open; V
CM
= V
OUT
= half supply,
CONDITIONS
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
–
to V
+
LT1809 SO-8
LT1809 SO-8
MIN
TYP
0.6
0.6
0.6
0.6
0.3
0.3
0.7
V
CM
= V
+
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
V
CM
= V
+
V
CM
= V
–
+ 0.2V
V
CM
= V
+
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
f = 10kHz
f = 10kHz
V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100Ω to V
S
/2
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
CM
= V
–
to V
+
V
S
= 3V, V
CM
= V
–
to V
+
V
S
= 5V, V
CM
= V
–
to V
+
V
S
= 3V, V
CM
= V
–
to V
+
V
S
= 2.5V to 10V, V
CM
= 0V
V
S
= 2.5V to 10V, V
CM
= 0V
No Load
I
SINK
= 5mA
I
SINK
= 25mA
No Load
I
SOURCE
= 5mA
I
SOURCE
= 25mA
V
S
= 5V
V
S
= 3V
V
S
= 5V, V
SHDN
= 0.3V
V
S
= 3V, V
SHDN
= 0.3V
V
S
= 5V, V
SHDN
= 0.3V
V
S
= 3V, V
SHDN
= 0.3V
V
SHDN
= 0.3V
V
S
– 0.5
V
SHDN
= 0.3V to 4.5V, R
L
= 100
80
±45
±35
25
4
15
66
61
60
55
V
–
71
65
87
87
2.3
12
50
180
20
80
330
±85
±70
12.5
0.55
0.31
420
220
0.1
17
1.25
0.90
750
500
75
0.3
2.5
50
120
375
80
180
650
1.8
–13
14.8
0.1
0.2
0.05
0.2
0.25
16
5
2
80
10
42
82
78
82
78
V
+
MAX
2.5
2.5
3.0
3.0
2.0
2.5
6
8
35.5
4
8
1.2
4
5.2
UNITS
mV
mV
mV
mV
mV
mV
mV
μA
μA
μA
μA
μA
μA
μA
μA
nV/√Hz
pA/√Hz
pF
V/mV
V/mV
V/mV
dB
dB
dB
dB
V
dB
dB
V
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
μA
μA
μA
V
V
ns
180910fa
ΔV
OS
Input Offset Shift
Input Offset Voltage Match (Channel-to-Channel)
(Note 10)
LT1809 SO-8
I
B
ΔI
B
Input Bias Current
Input Bias Current Shift
Input Bias Current Match (Channel-to-Channel)
(Note 10)
–27.5
I
OS
ΔI
OS
e
n
i
n
C
IN
A
VOL
Input Offset Current
Input Offset Current Shift
Input Noise Voltage Density
Input Noise Current Density
Input Capacitance
Large-Signal Voltage Gain
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 10)
Input Common Mode Range
PSRR
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 10)
Minimum Supply Voltage (Note 6)
V
OL
Output Voltage Swing LOW (Note 7)
V
OH
Output Voltage Swing HIGH (Note 7)
I
SC
I
S
Short-Circuit Current
Supply Current per Amplifier
Supply Current, Shutdown
I
SHDN
SHDN
Pin Current
Output Leakage Current, Shutdown
V
L
V
H
t
ON
SHDN
Pin Input Voltage Low
SHDN
Pin Input Voltage High
Turn-On Time
3
LT1809/LT1810
ELECTRICAL CHARACTERISTICS
unless otherwise noted.
PARAMETER
Turn-Off Time
Gain-Bandwidth Product
Slew Rate
Full Power Bandwidth
Total Harmonic Distortion
Settling Time
Differential Gain (NTSC)
Differential Phase (NTSC)
SYMBOL
t
OFF
GBW
SR
FPBW
THD
t
S
ΔG
Δθ
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open; V
CM
= V
OUT
= half supply,
CONDITIONS
V
SHDN
= 4.5V to 0.3V, R
L
= 100
Frequency = 2MHz
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 4V
P-P
V
S
= 5V, V
OUT
= 4V
P-P
V
S
= 5V, A
V
= 1, R
L
= 1k, V
O
= 2V
P-P
, f
C
= 5MHz
0.1%, V
S
= 5V, V
STEP
= 2V, A
V
= –1, R
L
= 500Ω
V
S
= 5V, A
V
= 2, R
L
= 150Ω
V
S
= 5V, A
V
= 2, R
L
= 150Ω
MIN
TYP
50
160
300
23.5
– 86
27
0.015
0.05
MAX
UNITS
ns
MHz
V/μs
MHz
dB
ns
%
Deg
The
l
denotes the specifications which apply over the 0°C ≤ T
A
≤ 70°C temperature range. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open;
V
CM
= V
OUT
= half supply, unless otherwise noted.
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
–
to V
+
LT1809 SO-8
LT1809 SO-8
LT1809 SO-8
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
TYP
1
1
1
1
9
9
0.5
0.5
1.2
2
–14
16
0.1
0.5
0.05
0.40
0.45
MAX
3.0
3.0
3.5
3.5
25
25
2.5
3.0
6.5
10
40
5
10
1.5
4.5
6
UNITS
mV
mV
mV
mV
μV/°C
μV/°C
mV
mV
mV
μA
μA
μA
μA
μA
μA
μA
μA
V/mV
V/mV
V/mV
dB
dB
dB
dB
V
OS
TC
ΔV
OS
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Shift
Input Offset Voltage Match (Channel-to-Channel) V
CM
= V
–
, V
CM
= V
+
(Note 10)
I
B
ΔI
B
Input Bias Current
Input Bias Current Shift
Input Bias Current Match (Channel-to-Channel)
(Note 10)
I
OS
ΔI
OS
A
VOL
Input Offset Current
Input Offset Current Shift
Large-Signal Voltage Gain
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
–
+ 0.4V to V
+
– 0.2V
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
–
+ 0.4V to V
+
– 0.2V
V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100Ω to V
S
/2
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
CM
= V
–
to V
+
V
S
= 3V, V
CM
= V
–
to V
+
V
S
= 5V, V
CM
= V
–
, V
CM
= V
+
V
S
= 3V, V
CM
= V
–
, V
CM
= V
+
V
S
= 2.5V to 10V, V
CM
= 0V
V
S
= 2.5V to 10V, V
CM
= 0V
No Load
I
SINK
= 5mA
I
SINK
= 25mA
–30
20
3.5
12
64
60
58
54
V
–
70
64
75
8.5
40
80
75
80
75
V
+
83
83
2.3
12
55
200
2.5
60
140
400
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 10)
Input Common Mode Range
V
dB
dB
V
mV
mV
mV
PSRR
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 10)
Minimum Supply Voltage (Note 6)
l
l
l
l
l
l
V
OL
Output Voltage Swing LOW (Note 7)
180910fa
4
LT1809/LT1810
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OH
PARAMETER
Output Voltage Swing HIGH (Note 7)
The
l
denotes the specifications which apply over the 0°C ≤ T
A
≤ 70°C
temperature range. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open; V
CM
= V
OUT
= half supply, unless otherwise noted.
CONDITIONS
No Load
I
SOURCE
= 5mA
I
SOURCE
= 25mA
V
S
= 5V
V
S
= 3V
V
S
= 5V, V
SHDN
= 0.3V
V
S
= 3V, V
SHDN
= 0.3V
V
S
= 5V, V
SHDN
= 0.3V
V
S
= 3V, V
SHDN
= 0.3V
V
SHDN
= 0.3V
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
TYP
50
110
370
MAX
120
220
700
UNITS
mV
mV
mV
mA
mA
I
SC
I
S
Short-Circuit Current
Supply Current per Amplifier
Supply Current, Shutdown
±40
±30
±75
± 65
15
0.58
0.35
420
220
2
0.3
20
1.4
1.1
850
550
mA
mA
mA
μA
μA
μA
V
V
ns
ns
MHz
V/μs
MHz
I
SHDN
SHDN
Pin Current
Output Leakage Current, Shutdown
V
L
V
H
t
ON
t
OFF
GBW
SR
FPBW
SHDN
Pin Input Voltage Low
SHDN
Pin Input Voltage High
Turn-On Time
Turn-Off Time
Gain-Bandwidth Product
Slew Rate
Full Power Bandwidth
V
SHDN
= 0.3V to 4.5V, R
L
= 100
V
SHDN
= 4.5V to 0.3V, R
L
= 100
Frequency = 2MHz
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 4V
P-P
V
S
= 5V, V
OUT
= 4V
P-P
V
S
– 0.5
80
50
145
250
20
l
l
l
l
l
The
l
denotes the specifications which apply over the – 40°C ≤ T
A
≤ 85°C temperature range. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open;
V
CM
= V
OUT
= half supply, unless otherwise noted. (Note 5)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
–
LT1809 SO-8
LT1809 SO-8
LT1809 SO-8
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
TYP
1
1
1
1
9
9
0.5
0.5
1.2
2
–17
19
0.2
0.6
0.08
0.5
0.58
MAX
3.5
3.5
4.0
4.0
25
25
3.0
3.5
7
12
47
6
12
2
6
7.5
UNITS
mV
mV
mV
mV
μV/°C
μV/°C
mV
mV
mV
μA
μA
μA
μA
μA
μA
μA
μA
V/mV
V/mV
V/mV
V
OS
TC
ΔV
OS
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Shift
Input Offset Voltage Match (Channel-to-Channel) V
CM
= V
+
, V
CM
= V
–
(Note 10)
I
B
ΔI
B
Input Bias Current
Input Bias Current Shift
Input Bias Current Match (Channel-to-Channel)
(Note 10)
I
OS
ΔI
OS
A
VOL
Input Offset Current
Input Offset Current Shift
Large-Signal Voltage Gain
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
–
+ 0.4V to V
+
– 0.2V
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
–
+ 0.4V to V
+
– 0.2V
V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100Ω to V
S
/2
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k to V
S
/2
–35
17
2.5
10
60
7
35
180910fa
5
嵌入式系统
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