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LT1813
Dual 3mA, 100MHz, 750V/
s
Operational Amplifier
s
100MHz Gain Bandwidth
s
750V/
s Slew Rate
s
3.6mA Maximum Supply Current per Amplifier
s
8nV/
Hz Input Noise Voltage
s
Unity-Gain Stable
s
1.5mV Maximum Input Offset Voltage
s
4
A Maximum Input Bias Current
s
400nA Maximum Input Offset Current
s
40mA Minimum Output Current, V
OUT
=
3V
s
3.5V Minimum Input CMR, V
S
=
5V
s
Specified at
5V, Single 5V
s
Available in MS8 and SO-8 Packages
s
Wideband Amplifiers
s
Buffers
s
Active Filters
s
Video and RF Amplification
s
Cable Drivers
s
Data Acquisition Systems
The LT
1813 is a low power, high speed, very high slew
rate operational amplifier with excellent DC performance.
The LT1813 features reduced supply current, lower input
offset voltage, lower input bias current and higher DC gain
than other devices with comparable bandwidth. The circuit
topology is a voltage feedback amplifier with the slewing
characteristics of a current feedback amplifier.
The output drives a 100
load to
3.5V with
5V supplies.
On a single 5V supply, the output swings from 1.1V to 3.9V
with a 100
load connected to 2.5V. The amplifier is stable
with a 1000pF capacitive load which makes it useful in
buffer and cable driver applications.
The LT1813 is manufactured on Linear Technology's
advanced low voltage complementary bipolar process.
For higher supply voltage single, dual and quad opera-
tional amplifiers with up to 70MHz gain bandwidth, see the
LT1351 through LT1365 data sheets.
, LTC and LT are registered trademarks of Linear Technology Corporation.
4MHz, 4th Order Butterworth Filter
Filter Frequency Response
+
1/2 LT1813
220pF
V
IN
665
232
47pF
232
+
1/2 LT1813
470pF
1813 TA01
V
OUT
562
274
22pF
274
FREQUENCY (MHz)
0.1
50
VOLTAGE GAIN (dB)
40
30
20
10
1
10
100
1813 TA02
60
70
80
90
0
10
V
S
=
5V
V
IN
= 600mV
P-P
PEAKING < 0.12dB
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
2
LT1813
ABSOLUTE
M
AXI
M
U
M
RATINGS
W
W
W
U
PACKAGE/ORDER I
N
FOR
M
ATIO
N
W
U
U
Consult factory for Military grade parts. *See note 9.
Total Supply Voltage (V
+
to V
) ............................. 12.6V
Differential Input Voltage (Transient Only, Note 2) ...
3V
Input Voltage ...........................................................
V
S
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range ................ 40
C to 85
C
ORDER PART
NUMBER
LT1813DMS8*
MS8 PART MARKING
LTGZ
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT B
IN B
+IN B
OUT A
IN A
+IN A
V
S8 PACKAGE
8-LEAD PLASTIC SO
B
A
T
JMAX
= 150
C,
JA
= 150
C/ W
(Note 1)
Specified Temperature Range
(Notes 8, 9) ......................................... 40
C to 85
C
Maximum Junction Temperature ......................... 150
C
Storage Temperature Range .................. 65
C to 150
C
Lead Temperature (Soldering, 10 sec)................... 300
C
ORDER PART
NUMBER
LT1813CS8
LT1813IS8
LT1813DS8*
S8 PART MARKING
1813
1813I
1813D
1
2
3
4
OUT A
IN A
+IN A
V
8
7
6
5
V
+
OUT B
IN B
+IN B
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
0.5
1.5
mV
I
OS
Input Offset Current
50
400
nA
I
B
Input Bias Current
0.9
4
A
e
n
Input Noise Voltage
f = 10kHz
8
nV/
Hz
i
n
Input Noise Current
f = 10kHz
1
pA/
Hz
R
IN
Input Resistance
V
CM
=
3.5V
3
10
M
Differential
1.5
M
C
IN
Input Capacitance
2
pF
Input Voltage Range (High)
3.5
4.2
V
Input Voltage Range (Low)
4.2
3.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
3.5V
75
85
dB
PSRR
Power Supply Rejection Ratio
V
S
=
2V to
5.5V
78
96
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
3V, R
L
= 500
1.5
3.0
V/mV
V
OUT
=
3V, R
L
= 100
1.0
2.5
V/mV
V
OUT
Output Swing
R
L
= 500
, 30mV Overdrive
3.80
4.0
V
R
L
= 100
, 30mV Overdrive
3.35
3.5
V
I
OUT
Output Current
V
OUT
=
3V, 30mV Overdrive
40
60
mA
I
SC
Short-Circuit Current
V
OUT
= 0V, V
IN
=
1V
75
100
mA
SR
Slew Rate
A
V
= 1 (Note 5)
500
750
V/
s
Full Power Bandwidth
3V Peak (Note 6)
40
MHz
T
A
= 25
C, V
S
=
5V, V
CM
= 0V unless otherwise noted.
T
JMAX
= 150
C,
JA
= 250
C/ W
3
LT1813
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
GBW
Gain Bandwidth
f = 200kHz
75
100
MHz
t
r
, t
f
Rise Time, Fall Time
A
V
= 1, 10% to 90%, 0.1V, R
L
= 100
2
ns
Overshoot
A
V
= 1, 0.1V, R
L
= 100
25
%
Propagation Delay
50% V
IN
to 50% V
OUT
, 0.1V, R
L
= 100
2.8
ns
R
O
Output Resistance
A
V
= 1, f = 1MHz
0.4
Channel Separation
V
OUT
=
3V, R
L
= 100
82
90
dB
I
S
Supply Current
Per Amplifier
3
3.6
mA
T
A
= 25
C, V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
0.7
2
mV
I
OS
Input Offset Current
50
400
nA
I
B
Input Bias Current
1
4
A
e
n
Input Noise Voltage
f = 10kHz
8
nV/
Hz
i
n
Input Noise Current
f = 10kHz
1
pA/
Hz
R
IN
Input Resistance
V
CM
= 1.5V to 3.5V
3
20
M
Differential
1.5
M
C
IN
Input Capacitance
2
pF
Input Voltage Range (High)
3.5
4
V
Input Voltage Range (Low)
1
1.5
V
CMRR
Common Mode Rejection Ratio
V
CM
= 1.5V to 3.5V
73
82
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
= 1.5V to 3.5V, R
L
= 500
1.0
2.0
V/mV
V
OUT
= 1.5V to 3.5V, R
L
= 100
0.7
1.5
V/mV
V
OUT
Output Swing (High)
R
L
= 500
, 30mV Overdrive
3.9
4.1
V
R
L
= 100
, 30mV Overdrive
3.7
3.9
V
Output Swing (Low)
R
L
= 500
, 30mV Overdrive
0.9
1.1
V
R
L
= 100
, 30mV Overdrive
1.1
1.3
V
I
OUT
Output Current
V
OUT
= 3.5V or 1.5V, 30mV Overdrive
25
35
mA
I
SC
Short-Circuit Current
V
OUT
= 2.5V, V
IN
=
1V
55
75
mA
SR
Slew Rate
A
V
= 1 (Note 5)
200
350
V/
s
Full Power Bandwidth
1V Peak (Note 6)
55
MHz
GBW
Gain Bandwidth
f = 200kHz
65
94
MHz
t
r
, t
f
Rise Time, Fall Time
A
V
= 1, 10% to 90%, 0.1V, R
L
= 100
2.1
ns
Overshoot
A
V
= 1, 0.1V, R
L
= 100
25
%
Propagation Delay
50% V
IN
to 50% V
OUT
, 0.1V, R
L
= 100
3
ns
R
O
Output Resistance
A
V
= 1, f = 1MHz
0.45
Channel Separation
V
OUT
= 1.5V to 3.5V, R
L
= 100
81
92
dB
I
S
Supply Current
Per Amplifier
2.9
3.6
mA
T
A
= 25
C, V
S
=
5V, V
CM
= 0V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
The
q
denotes the specifications which apply over the temperature range
0
C
T
A
70
C. V
S
=
5V, V
CM
= 0V unless otherwise noted (Note 9).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
q
2
mV
Input V
OS
Drift
(Note 7)
q
10
15
V/
C
I
OS
Input Offset Current
q
500
nA
I
B
Input Bias Current
q
5
A
4
LT1813
ELECTRICAL CHARACTERISTICS
The
q
denotes the specifications which apply over the temperature range
0
C
T
A
70
C. V
S
=
5V, V
CM
= 0V unless otherwise noted (Note 9).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range (High)
q
3.5
V
Input Voltage Range (Low)
q
3.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
3.5V
q
73
dB
PSRR
Power Supply Rejection Ratio
V
S
=
2V to
5.5V
q
76
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
3V, R
L
= 500
q
1.0
V/mV
V
OUT
=
3V, R
L
= 100
q
0.7
V/mV
V
OUT
Output Swing
R
L
= 500
, 30mV Overdrive
q
3.70
V
R
L
= 100
, 30mV Overdrive
q
3.25
V
I
OUT
Output Current
V
OUT
=
3V, 30mV Overdrive
q
35
mA
I
SC
Short-Circuit Current
V
OUT
= 0V, V
IN
=
1V
q
60
mA
SR
Slew Rate
A
V
= 1 (Note 5)
q
400
V/
s
GBW
Gain Bandwidth
f = 200kHz
q
65
MHz
Channel Separation
V
OUT
,
3V, R
L
= 100
q
81
dB
I
S
Supply Current
Per Amplifier
q
4.5
mA
0
C
T
A
70
C, V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V unless otherwise noted (Note 9).
V
OS
Input Offset Voltage
(Note 4)
q
2.5
mV
Input V
OS
Drift
(Note 7)
q
10
15
V/
C
I
OS
Input Offset Current
q
500
nA
I
B
Input Bias Current
q
5
A
Input Voltage Range (High)
q
3.5
V
Input Voltage Range (Low)
q
1.5
V
CMRR
Common Mode Rejection Ratio
V
CM
= 1.5V to 3.5V
q
71
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
= 1.5V to 3.5V, R
L
= 500
q
0.7
V/mV
V
OUT
= 1.5V to 3.5V, R
L
= 100
q
0.5
V/mV
V
OUT
Output Swing (High)
R
L
= 500
, 30mV Overdrive
q
3.8
V
R
L
= 100
, 30mV Overdrive
q
3.6
V
Output Swing (Low)
R
L
= 500
, 30mV Overdrive
q
1.2
V
R
L
= 100
, 30mV Overdrive
q
1.4
V
I
OUT
Output Current
V
OUT
= 3.5V or 1.5V, 30mV Overdrive
q
20
mA
I
SC
Short-Circuit Current
V
OUT
= 2.5V, V
IN
=
1V
q
45
mA
SR
Slew Rate
A
V
= 1 (Note 5)
q
150
V/
s
GBW
Gain Bandwidth
f = 200kHz
q
55
MHz
Channel Separation
V
OUT
, 1.5V to 3.5V, R
L
= 100
q
80
dB
I
S
Supply Current
Per Amplifier
q
4.5
mA
40
C
T
A
85
C. V
S
=
5V, V
CM
= 0V unless otherwise noted (Notes 8, 9).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 4)
q
3
mV
Input V
OS
Drift
(Note 7)
q
10
30
V/
C
I
OS
Input Offset Current
q
600
nA
I
B
Input Bias Current
q
6
A
Input Voltage Range (High)
q
3.5
V
Input Voltage Range (Low)
q
3.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
3.5V
q
72
dB
PSRR
Power Supply Rejection Ratio
V
S
=
2V to
5.5V
q
75
dB
5
LT1813
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Differential inputs of
3V are appropriate for transient operation
only, such as during slewing. Large sustained differential inputs can cause
excessive power dissipation and may damage the part.
Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted indefinitely.
Note 4: Input offset voltage is pulse tested and is exclusive of warm-up
drift.
Note 5: Slew rate is measured between
2V on the output with
3V input
for
5V supplies and 2V
P-P
on the output with a 3V
P-P
input for single 5V
supplies.
Note 6: Full power bandwidth is calculated from the slew rate:
FPBW = SR/2
V
P
.
Note 7: This parameter is not 100% tested.
Note 8: The LT1813C is guaranteed to meet specified performance from
0
C to 70
C and is designed, characterized and expected to meet these
extended temperature limits, but is not tested at 40
C and 85
C. The
LT1813I is guaranteed to meet the extended temperature limits.
Note 9: The LT1813D is 100% production tested at 25
C. It is designed,
characterized and expected to meet the 0
C to 70
C specifications
although it is not tested or QA sampled at these temperatures. The
LT1813D is guaranteed functional from 40
C to 85
C but may not meet
those specifications.
ELECTRICAL CHARACTERISTICS
The
q
denotes the specifications which apply over the temperature range
40
C
T
A
85
C. V
S
=
5V, V
CM
= 0V unless otherwise noted (Notes 8, 9).
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
A
VOL
Large-Signal Voltage Gain
V
OUT
=
3V, R
L
= 500
q
0.8
V/mV
V
OUT
=
3V, R
L
= 100
q
0.6
V/mV
V
OUT
Output Swing
R
L
= 500
, 30mV Overdrive
q
3.60
V
R
L
= 100
, 30mV Overdrive
q
3.15
V
I
OUT
Output Current
V
OUT
=
3V, 30mV Overdrive
q
30
mA
I
SC
Short-Circuit Current
V
OUT
= 0V, V
IN
=
1V
q
55
mA
SR
Slew Rate
A
V
= 1 (Note 5)
q
350
V/
s
GBW
Gain Bandwidth
f = 200kHz
q
60
MHz
Channel Separation
V
OUT
,
3V, R
L
= 100
q
80
dB
I
S
Supply Current
Per Amplifier
q
5
mA
40
C
T
A
85
C, V
S
= 5V, V
CM
= 2.5V, R
L
to 2.5V unless otherwise noted (Notes 8, 9).
V
OS
Input Offset Voltage
(Note 4)
q
3.5
mV
Input V
OS
Drift
(Note 7)
q
10
30
V/
C
I
OS
Input Offset Current
q
600
nA
I
B
Input Bias Current
q
6
A
Input Voltage Range (High)
q
3.5
V
Input Voltage Range (Low)
q
1.5
V
CMRR
Common Mode Rejection Ratio
V
CM
= 1.5V to 3.5V
q
70
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
= 1.5V to 3.5V, R
L
= 500
q
0.6
V/mV
V
OUT
= 1.5V to 3.5V, R
L
= 100
q
0.4
V/mV
V
OUT
Output Swing (High)
R
L
= 500
, 30mV Overdrive
q
3.7
V
R
L
= 100
, 30mV Overdrive
q
3.5
V
Output Swing (Low)
R
L
= 500
, 30mV Overdrive
q
1.3
V
R
L
= 100
, 30mV Overdrive
q
1.5
V
I
OUT
Output Current
V
OUT
= 3.5V or 1.5V, 30mV Overdrive
q
17
mA
I
SC
Short-Circuit Current
V
OUT
= 2.5V, V
IN
=
1V
q
40
mA
SR
Slew Rate
A
V
= 1 (Note 5)
q
125
V/
s
GBW
Gain Bandwidth
f = 200kHz
q
50
MHz
Channel Separation
V
OUT
, 1.5V to 3.5V, R
L
= 100
q
79
dB
I
S
Supply Current
Per Amplifier
q
5
mA
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