Final Electrical Specifications
LT1809
180MHz, 350V/µs
Rail-to-Rail Input and Output
Low Distortion Op Amp
January 2000
FEATURES
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
8-Pin SO-8 Package
Operating Temperature Range – 40°C to 85°C
The LT
®
1809 is a low distortion rail-to-rail input and
output op amp with a 350V/µs slew rate. The amplifier has
a –3dB bandwidth of 320MHz at unity-gain, a gain-band-
width 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 has 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 has very low distortion (–90dBc) up to 5MHz
that allows it to be used in high performance data acqui-
sition systems.
The LT1809 maintains its performance for supplies from
2.5V to 12.6V and is 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. This device can be used as a plug-
in replacement for many op amps to improve input/output
range and performance.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Active Filters
Rail-to-Rail Buffer Amplifiers
Driving A/D Converters
Low Voltage Signal Processing
Video Line Driver
TYPICAL APPLICATIO
232Ω
47pF
Single 3V Supply, 4MHz, 4th Order Butterworth Filter
274Ω
GAIN (dB)
10
0
–10
–20
–30
–40
–50
–60
22pF
232Ω
V
IN
220pF
665Ω
–
LT1809
274Ω
562Ω
470pF
–
LT1809
V
OUT
+
V
S
2
–70
–80
+
1809 TA01
–90
10k
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
Filter Frequency Response
V
S
= 3V, 0V
V
IN
= 2.5V
P-P
100k
1M
10M
FREQUENCY (Hz)
100M
1809 TA01a
U
U
1
LT1809
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SHDN 1
–IN 2
+IN 3
V
–
4
8
7
6
5
NC
V+
OUT
NC
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
ORDER PART
NUMBER
LT1809CS8
LT1809IS8
S8 PART
MARKING
1809
1809I
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 190°C/W
Consult factory for Military grade parts.
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
∆V
OS
I
B
∆I
B
I
OS
∆I
OS
e
n
i
n
C
IN
A
VOL
Input Offset Voltage
Input Offset Shift
Input Bias Current
Input Bias Current Shift
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
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100Ω
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k
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
35
4.5
22
69
64
V
–
73
87
2.3
2.5
CONDITIONS
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
f = 10kHz
f = 10kHz
– 27.5
MIN
TYP
0.6
0.6
0.3
1.8
–13
11.8
0.05
0.2
0.25
16
5
2
90
10
42
82
78
V
+
MAX
2.5
2.5
1.75
8
35.5
1.2
4
5.2
UNITS
mV
mV
mV
µA
µA
µA
µA
µA
µA
nV/√Hz
pA/√Hz
pF
V/mV
V/mV
V/mV
dB
dB
V
dB
V
CMRR
Common Mode Rejection Ratio
Input Common Mode Range
PSRR
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
2
U
W
U
U
W W
W
LT1809
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
OL
Output Voltage Swing LOW (Note 7)
CONDITIONS
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
= 0V
V
S
= 3V, V
SHDN
= 0V
Frequency = 2MHz
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 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
= 150Ω
±50
±40
MIN
TYP
6
40
150
17
80
300
±85
±70
12.5
0.55
0.31
160
300
– 86
40
0.015
0.05
17
0.8
0.5
MAX
20
80
300
40
160
500
UNITS
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
MHz
V/µs
dB
ns
%
%
V
OH
Output Voltage Swing HIGH (Note 7)
I
SC
I
S
Short-Circuit Current
Supply Current
Disable Supply Current
GBW
SR
THD
t
S
∆G
∆θ
Gain-Bandwidth Product
Slew Rate
Total Harmonic Distortion
Settling Time
Differential Gain (NTSC)
Differential Phase (NTSC)
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.
SYMBOL PARAMETER
V
OS
V
OS
TC
∆V
OS
I
B
∆I
B
I
OS
∆I
OS
A
VOL
Input Offset Voltage
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Shift
Input Bias Current
Input Bias Current Shift
Input Offset Current
Input Offset Current Shift
Large-Signal Voltage Gain
CONDITIONS
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
+
– 0.1V
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
– 0.1V
V
CM
= V
+
– 0.1V
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
– 0.1V
V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100Ω
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k
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
No Load
I
SINK
= 5mA
I
SINK
= 25mA
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
9
9
0.5
2
–14
12
0.05
0.40
0.45
MAX
3
3
25
25
2
10
40
1.5
4.5
6
UNITS
mV
mV
µV/°C
µV/°C
mV
µA
µA
µA
µA
µA
µA
V/mV
V/mV
V/mV
dB
dB
– 30
25
3.5
16
67.5
63.5
V
–
71
80
8.5
40
80
75
V
+
83
2.3
8
40
160
2.5
25
80
320
CMRR
Common Mode Rejection Ratio
Input Common Mode Range
V
dB
V
mV
mV
mV
PSRR
V
OL
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
Output Voltage Swing LOW (Note 7)
3
LT1809
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.
SYMBOL PARAMETER
V
OH
Output Voltage Swing HIGH (Note 7)
CONDITIONS
No Load
I
SOURCE
= 5mA
I
SOURCE
= 25mA
V
S
= 5V
V
S
= 3V
V
S
= 5V, V
SHDN
= 0V
V
S
= 3V, V
SHDN
= 0V
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 4V
P-P
q
q
q
q
q
q
q
q
q
q
ELECTRICAL CHARACTERISTICS
MIN
TYP
50
110
340
MAX
100
220
600
UNITS
mV
mV
mV
mA
mA
I
SC
I
S
Short-Circuit Current
Supply Current
Disable Supply Current
±45
±35
±75
±65
15
0.58
0.35
145
250
20
1
0.75
mA
mA
mA
MHz
V/µs
GBW
SR
Gain-Bandwidth Product
Slew Rate
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
Vos
Vos TC
∆Vos
I
B
∆I
B
I
OS
∆I
OS
A
VOL
Input Offset Voltage
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Shift
Input Bias Current
Input Bias Current Shift
Input Offset Current
Input Offset Current Shift
Large-Signal Voltage Gain
CONDITIONS
V
CM
= V
+
V
CM
= V
–
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
V
CM
= V
+
– 0.1V
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
– 0.1V
V
CM
= V
+
– 0.1V
V
CM
= V
–
+ 0.2V
V
CM
= V
–
+ 0.2V to V
+
– 0.1V
V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100Ω
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k
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
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
= 0V
V
S
= 3V, V
SHDN
= 0V
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
MIN
TYP
1
1
9
9
0.5
2
–17
14
0.08
0.5
0.58
MAX
3.5
3.5
25
25
2.25
12
47
2
6
7.5
UNITS
mV
mV
µV/°C
µV/°C
mV
µA
µA
µA
µA
µA
µA
V/mV
V/mV
V/mV
dB
dB
– 35
20
2.5
12
66.5
62.5
V
–
71
60
7
35
80
75.5
V
+
83.5
2.3
8
45
170
55
110
350
2.5
30
90
340
120
230
620
CMRR
Common Mode Rejection Ratio
Input Common Mode Range
V
dB
V
mV
mV
mV
mV
mV
mV
mA
mA
PSRR
V
OL
Power Supply Rejection Ratio
Minimum Supply Voltage (Note 6)
Output Voltage Swing LOW (Note 7)
V
OH
Output Voltage Swing HIGH (Note 7)
I
SC
I
S
Short-Circuit Current
Supply Current
Disable Supply Current
±35
±30
±70
±60
15
0.58
0.35
21
1.1
0.85
mA
mA
mA
4
LT1809
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
GBW
SR
Gain-Bandwidth Product
Slew Rate
CONDITIONS
Frequency = 2MHz
V
S
= 5V, A
V
= -1, R
L
= 1k, V
O
= 4V
P-P
q
q
ELECTRICAL CHARACTERISTICS
MIN
TYP
140
180
MAX
UNITS
MHz
V/µs
T
A
= 25°C. V
S
=
±5V,
V
SHDN
= open, V
CM
= 0V, V
OUT
= 0V unless otherwise noted.
SYMBOL PARAMETER
V
OS
∆Vos
I
B
∆I
B
I
OS
∆I
OS
e
n
i
n
C
in
A
VOL
CMRR
PSRR
V
OL
Input Offset Voltage
Input Offset Voltage Shift
Input Bias Current
Input Bias Current Shift
Input Offset Current
Input Offset Current Shift
Input Noise Voltage Density
Input Noise Current Density
Input Capacitance
Large-Signal Voltage Gain
Common Mode Rejection Ratio
Input Common Mode Range
Power Supply Rejection Ratio
Output Voltage Swing LOW (Note 7)
V
+
= 2.5V to 10V, V
–
= 0V
No Load
I
SINK
= 5mA
I
SINK
= 25mA
No Load
I
SOURCE
= 5mA
I
SOURCE
= 25mA
±60
V
SHDN
= 0V
Frequency = 2MHz
A
V
= –1, R
L
= 1k, V
O
=
±4V,
Measure at V
O
=
±3V
A
V
= 1, R
L
= 1k, V
O
= 2V
P-P
, f
C
= 5MHz
0.01%, V
STEP
= 5V, A
V
= 1, R
L
= 1k
A
V
= 2, R
L
= 150
120
175
CONDITIONS
V
CM
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
f = 10kHz
f = 10kHz
f = 100kHz
V
O
= – 4V to 4V, R
L
= 1k
V
O
= – 2.5V to 2.5V, R
L
= 100Ω
V
CM
= V
–
to V
+
45
5
73
V
–
73
87
8
46
170
30
90
310
±85
15
0.6
180
350
– 90
60
0.01
0.01
20
0.9
30
100
350
60
200
600
– 30
= V
+
MIN
TYP
0.8
0.8
0.35
2
–12.5
13.5
0.05
0.4
0.45
16
5
2
100
12
89
V
+
MAX
3
3
2
10
42.5
2
5
7
UNITS
mV
mV
mV
µA
µA
µA
µA
µA
µA
nV/√Hz
pA/√Hz
pF
V/mV
V/mV
dB
V
dB
mV
mV
mV
mV
mV
mV
mA
mA
mA
MHz
V/µs
dB
nS
%
%
V
OH
Output Voltage Swing HIGH (Note 7)
I
SC
I
S
GBW
SR
HD
t
S
∆G
∆θ
Short-Circuit Current
Supply Current
Disable Supply Current
Gain-Bandwidth Product
Slew Rate
Total Harmonic Distortion
Settling Time
Differential Gain (NTSC)
Differential Phase (NTSC)
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
