LT1809/LT1810
Single/Dual 180MHz, 350V/µs
Rail-to-Rail Input and Output
Low Distortion Op Amps
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
–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
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 sup-
plies from 2.5V to 12.6V and are specified at 3V, 5V and
±5V
supplies. The inputs can be driven beyond the sup-
plies 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.
APPLICATIO S
s
s
s
s
s
Driving A/D Converters
Low Voltage Signal Processing
Active Filters
Rail-to-Rail Buffer Amplifiers
Video Line Driver
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Distortion vs Frequency
–40
–50
–60
–70
–80
–90
R
L
= 100Ω, 3RD
–100
1809 TA01
High Speed ADC Driver
5V
5V
V
IN
1V
P-P
A
V
= +1
V
IN
= 2V
P-P
V
S
=
±5V
DISTORTION (dB)
+
LT1809
R3
49.9Ω
+A
IN
C1
470pF
–5V
R2
1k
–A
IN
–
LTC
®
1420
PGA GAIN = 1
REF = 2.048V
•
•
•
12 BITS
10Msps
–5V
R1
1k
–110
0.3
U
R
L
= 100Ω, 2ND
R
L
= 1k, 3RD
R
L
= 1k, 2ND
1
FREQUENCY (MHz)
1809 TA02
U
U
10
30
1
LT1809/LT1810
ABSOLUTE
AXI U
RATI GS
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
PACKAGE/ORDER I FOR ATIO
TOP VIEW
OUT 1
V
–
2
+IN 3
6 V
+
5 SHDN
4 –IN
ORDER PART
NUMBER
SHDN 1
LT1809CS6
LT1809IS6
S6 PART MARKING
LTKY
LTUF
ORDER PART
NUMBER
S6 PACKAGE
6-LEAD PLASTIC SOT-23
T
JMAX
= 150°C,
θ
JA
= 145°C/W (Note 9)
TOP VIEW
OUT A
–IN A
+IN A
V
–
1
2
3
4
8
7
6
5
V
+
OUT B
–IN B
+IN B
LT1810CMS8
LT1810IMS8
MS8 PART MARKING
LTRF
LTTQ
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 130°C/W (Note 9)
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open; V
CM
= V
OUT
= half supply, unless otherwise noted.
SYMBOL PARAMETER
V
OS
Input Offset Voltage
CONDITIONS
V
CM
= V
+
LT1809 SO-8
V
CM
= V
–
LT1809 SO-8
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
LT1809 SO-8
V
CM
= V
–
to V
+
V
CM
= V
+
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
V
CM
= V
+
V
CM
= V
–
+ 0.2V
MIN
TYP
0.6
0.6
0.6
0.6
0.3
0.3
0.7
– 27.5
1.8
–13
14.8
0.1
0.2
MAX
2.5
2.5
3.0
3.0
2.0
2.5
6
8
35.5
4
8
UNITS
mV
mV
mV
mV
mV
mV
mV
µA
µA
µA
µA
µA
∆V
OS
Input Offset Shift
Input Offset Voltage Match (Channel-to-Channel) (Note 10)
I
B
∆I
B
Input Bias Current
Input Bias Current Shift
Input Bias Current Match (Channel-to-Channel) (Note 10)
2
U
U
W
W W
U
W
(Note 1)
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
TOP VIEW
8
–
+
7
6
5
NC
V+
OUT
NC
ORDER PART
NUMBER
LT1809CS8
LT1809IS8
S8 PART MARKING
1809
1809I
ORDER PART
NUMBER
LT1810CS8
LT1810IS8
S8 PART MARKING
1810
1810I
–IN 2
+IN 3
V
–
4
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W (Note 9)
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
–
4
B
5 +IN B
A
8 V
+
7 OUT B
6 –IN B
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W (Note 9)
LT1809/LT1810
ELECTRICAL CHARACTERISTICS
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open; V
CM
= V
OUT
= half supply, unless otherwise noted.
SYMBOL PARAMETER
I
OS
∆I
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
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
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
80
50
160
300
23.5
– 86
27
0.015
0.05
±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
CONDITIONS
V
CM
= V
+
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
f = 10kHz
f = 10kHz
MIN
TYP
0.05
0.2
0.25
16
5
2
80
10
42
82
78
82
78
V
+
MAX
1.2
4
5.2
UNITS
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
ns
MHz
V/µs
MHz
dB
ns
%
Deg
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
t
OFF
GBW
SR
FPBW
THD
t
S
∆G
∆θ
SHDN Pin Input Voltage Low
SHDN Pin Input Voltage High
Turn-On Time
Turn-Off Time
Gain-Bandwidth Product
Slew Rate
Full Power Bandwidth
Total Harmonic Distortion
Settling Time
Differential Gain (NTSC)
Differential Phase (NTSC)
3
LT1809/LT1810
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
V
OS
Input Offset Voltage
The
q
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
V
CM
= V
+
LT1809 SO-8
V
CM
= V
–
LT1809 SO-8
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
LT1809 SO-8
V
CM
= V
–
to V
+
V
CM
= V
–
, V
CM
= V
+
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
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
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
V
S
– 0.5
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
∆V
OS
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Shift
Input Offset Voltage Match (Channel-to-Channel)
(Note 10)
I
B
∆I
B
Input Bias Current
Input Bias Current Shift
Input Bias Current Match (Channel-to-Channel)
(Note 10)
– 30
I
OS
∆I
OS
A
VOL
Input Offset Current
Input Offset Current Shift
Large-Signal Voltage Gain
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
50
110
370
2.5
60
140
400
120
220
700
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 10)
Input Common Mode Range
V
dB
dB
V
mV
mV
mV
mV
mV
mV
mA
mA
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
±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
I
SHDN
SHDN Pin Current
Output Leakage Current, Shutdown
V
L
V
H
SHDN Pin Input Voltage Low
SHDN Pin Input Voltage High
4
LT1809/LT1810
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
t
ON
t
OFF
GBW
SR
FPBW
Turn-On Time
Turn-Off Time
Gain-Bandwidth Product
Slew Rate
Full Power Bandwidth
The
q
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
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
q
q
q
q
q
MIN
TYP
80
50
145
250
20
MAX
UNITS
ns
ns
MHz
V/µs
MHz
The
q
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 PARAMETER
V
OS
Input Offset Voltage
CONDITIONS
V
CM
= V
+
LT1809 SO-8
V
CM
= V
–
LT1809 SO-8
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
LT1809 SO-8
V
CM
= V
–
V
CM
= V
+
, V
CM
= V
–
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
–
+ 0.4V to V
+
– 0.2V
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
– 0.2V
+ 0.4V
– 0.2V
+ 0.4V
+ 0.4V to V
+
– 0.2V
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
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
dB
dB
dB
dB
V
OS
TC
∆V
OS
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Shift
Input Offset Voltage Match (Channel-to-Channel)
(Note 10)
I
B
∆I
B
Input Bias Current
Input Bias Current Shift
Input Bias Current Match (Channel-to-Channel)
(Note 10)
– 35
I
OS
∆I
OS
A
VOL
Input Offset Current
Input Offset Current Shift
Large-Signal Voltage Gain
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
17
2.5
10
63
58
57
52
V
–
69
63
60
7
35
80
75
78
72
V
+
83
83
2.3
18
60
210
55
120
375
2.5
70
150
450
130
240
750
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 10)
Input Common Mode Range
V
dB
dB
V
mV
mV
mV
mV
mV
mV
mA
mA
PSRR
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 10)
Minimum Supply Voltage (Note 6)
q
q
q
q
q
q
q
q
q
q
q
q
q
q
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
±30
±25
±70
±60
15
0.58
0.35
21
1.5
1.2
mA
mA
mA
5
微控制器 MCU
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