FEATURES
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LT1806/LT1807
325MHz, Single/Dual,
Rail-to-Rail Input and Output, Low Distortion,
Low Noise Precision Op Amps
DESCRIPTION
The LT
®
1806/LT1807 are single/dual low noise rail-to-rail
input and output unity-gain stable op amps that feature a
325MHz gain-bandwidth product, a 140V/μs slew rate and
a 85mA output current. They are optimized for low voltage,
high performance signal conditioning systems.
The LT1806/LT1807 have a very low distortion of – 80dBc
at 5MHz, a low input referred noise voltage of 3.5nV/√Hz
and a maximum offset voltage of 550μV that allows them to
be used in high performance data acquisition systems.
The LT1806/LT1807 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 LT1806/LT1807 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 LT1806 is available in an 8-pin SO package with the
standard op amp pinout and a 6-pin TSOT-23 package. The
LT1807 features the standard dual op amp pinout and is
available in 8-pin SO and MSOP packages.These devices
can be used as plug-in replacements for many op amps
to improve input/output range and performance.
Gain-Bandwidth Product: 325MHz
Slew Rate: 140V/μs
Wide Supply Range: 2.5V to 12.6V
Large Output Current: 85mA
Low Distortion, 5MHz: –80dBc
Low Voltage Noise: 3.5nV/√Hz
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Input Offset Voltage (Rail-to-Rail): 550μV Max
Common Mode Rejection: 106dB Typ
Power Supply Rejection: 105dB Typ
Unity-Gain Stable
Power Down Pin (LT1806)
Operating Temperature Range: – 40°C to 85°C
Single in SO-8 and 6-Pin Low Profile (1mm)
ThinSOT™ Packages
Dual in SO-8 and 8-Pin MSOP Packages
APPLICATIONS
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Low Voltage, High Frequency Signal Processing
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
Active Filters
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
Gain of 20 Differential A/D Driver
+
1/2 LT1807
0
–20
AMPLITUDE (dB)
5V
R5
49.9Ω
C1 5.6pF
C2 5.6pF
R6
49.9Ω
R3
100Ω
18067 TA01
4096 Point FFT Response
V
S
= 5V
A
V
= 20
f
SAMPLE
= 10Msps
f
IN
= 1.4086MHz
SFDR = 83dB
NONAVERAGED
V
IN
= 200mV
P-P
–
R1
100Ω
R2
909Ω
–40
–60
–80
V
IN
C3
470pF
LTC
®
1420
PGA GAIN = 1
–AV
IN
V
REF
= 4.096V
+AV
IN
12 BITS
10Msps
–100
–5V
–120
0
1
2
3
FREQUENCY (MHz)
4
5
18067 TA02
–
+
R4
1k
1/2 LT1807
18067fc
1
LT1806/LT1807
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V
+
to V
–
) ............................. 12.6V
Input Voltage (Note 2) ..............................................
±VS
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
+
–
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
8
7
6
5
+
–
V
+
OUT B
–IN B
+IN B
–IN 2
+IN 3
V
–
4
8
7
6
5
NC
V
+
OUT
NC
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 160°C/W (Note 9)
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 100°C/W (Note 9)
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 135°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
LT1806CS6#PBF
LT1806IS6#PBF
LT1806CS8#PBF
LT1806IS8#PBF
LT1807CMS8#PBF
LT1807IMS8#PBF
LT1807CS8#PBF
LT1807IS8#PBF
TAPE AND REEL
LT1806CS6#TRPBF
LT1806IS6#TRPBF
LT1806CS8#TRPBF
LT1806IS8#TRPBF
LT1807CMS8#TRPBF
LT1807IMS8#TRPBF
LT1807CS8#TRPBF
LT1807IS8#TRPBF
PART MARKING
LTNK
LTNL
1806
1806I
LTTT
LTTV
1807
1807I
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/
18067fc
2
LT1806/LT1807
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open; V
CM
= V
OUT
= half supply, unless otherwise noted.
CONDITIONS
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
(LT1806 SOT-23)
V
CM
= V
–
(LT1806 SOT-23)
V
CM
= V
–
to V
+
V
CM
= V
–
to V
+
(LT1806 SOT-23)
MIN
TYP
100
100
100
100
50
100
200
1
–5
6
0.03
0.05
0.03
0.05
0.08
800
3.5
1.5
2
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
= 100 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
75
9
60
79
74
73
68
V
–
90
84
105
105
2.3
8
50
170
15
85
350
2.5
50
130
375
65
180
650
220
22
150
100
95
100
95
V
+
MAX
550
550
700
700
550
700
1000
4
17
1.2
3.0
0.6
1.5
2.1
UNITS
μV
μV
μV
μV
μV
μV
μV
μA
μA
μA
μA
μA
μA
μA
μA
nV
P-P
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
ΔV
OS
Input Offset Voltage Shift
Input Offset Voltage Match (Channel-to-Channel) V
CM
= V
–
to 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
e
n
i
n
C
IN
A
VOL
Input Offset Current
Input Offset Current Shift
Input Noise Voltage
Input Noise Voltage Density
Input Noise Current Density
Input Capacitance
Large-Signal Voltage Gain
V
CM
= V
+
V
CM
= V
–
+ 0.2V
V
CM
= V
–
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
+
0.1Hz to 10Hz
f = 10kHz
f = 10kHz
–13
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)
18067fc
3
LT1806/LT1807
ELECTRICAL CHARACTERISTICS
SYMBOL
I
SC
I
S
PARAMETER
Short-Circuit Current
Supply Current per Amplifier
Disable Supply Current
I
SHDN
SHDN
Pin Current
Shutdown Output Leakage Current
V
L
V
H
t
ON
t
OFF
GBW
SR
FPBW
HD
t
S
ΔG
Δθ
SHDN
Pin Input Voltage LOW
SHDN
Pin Input Voltage HIGH
Turn-On Time
Turn-Off Time
Gain-Bandwidth Product
Slew Rate
Full-Power Bandwidth
Harmonic Distortion
Settling Time
Differential Gain (NTSC)
Differential Phase (NTSC)
V
SHDN
= 0.3V to 4.5V, R
L
= 100Ω
V
SHDN
= 4.5V to 0.3V, R
L
= 100Ω
Frequency = 6MHz
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 4V
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
0.01%, V
S
= 5V, V
STEP
= 2V, A
V
= 1, R
L
= 1k
V
S
= 5V, A
V
= 2, R
L
= 150
V
S
= 5V, A
V
= 2, R
L
= 150
V
+
– 0.5
80
50
325
125
10
–78
60
0.015
0.05
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
T
A
= 25°C. V
S
= 5V, 0V; V
S
= 3V, 0V; V
SHDN
= open; V
CM
= V
OUT
= half supply, unless otherwise noted.
CONDITIONS
V
S
= 5V
V
S
= 3V
MIN
±35
±30
TYP
±85
±65
9
0.40
0.22
150
100
0.1
13
0.9
0.7
350
300
75
0.3
MAX
UNITS
mA
mA
mA
mA
mA
μA
μA
μA
V
V
ns
ns
MHz
V/μs
MHz
dBc
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
+
(LT1806 SOT-23)
V
CM
= V
–
(LT1806 SOT-23)
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
–
to V
+
(LT1806 SOT-23)
l
l
l
l
l
l
l
l
l
l
l
l
MIN
TYP
200
200
200
200
1.5
1.5
100
100
300
1
–5
6
MAX
700
700
850
850
5
5
700
850
1200
5
20
UNITS
μV
μV
μV
μV
μV/°C
μV/°C
μV
μV
μV
μA
μA
μA
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
V
CM
= V
+
– 0.2V
V
CM
= V
–
+ 0.4V
V
CM
= V
–
+ 0.4V to V
+
– 0.2V
–15
18067fc
4
LT1806/LT1807
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
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
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
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
–
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
V
CM
= V
O
= 0.5V
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
l
l
l
l
l
l
l
l
l
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
0.03
0.05
0.03
0.05
0.08
MAX
1.5
3.5
0.75
1.80
2.55
UNITS
μA
μA
μA
μA
μA
V/mV
V/mV
V/mV
dB
dB
dB
dB
60
7.5
45
77
72
71
66
V
–
88
82
175
20
140
94
89
94
89
V
+
105
105
2.3
12
60
180
30
110
360
2.5
60
140
425
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
Disable Supply Current
±30
±25
±65
±55
10
0.40
0.22
160
110
1
0.3
14
1.1
0.9
400
350
mA
mA
mA
μA
μA
μA
V
V
ns
ns
MHz
V/μs
MHz
I
SHDN
SHDN
Pin Current
Shutdown Output Leakage Current
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
= 100Ω
V
SHDN
= 4.5V to 0.3V, R
L
= 100Ω
Frequency = 6MHz
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 4V
V
S
= 5V, V
O
= 4V
P-P
V
+
– 0.5
80
50
300
100
8
l
l
l
l
l
18067fc
5
嵌入式系统
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