LT1355/LT1356
Dual and Quad
12MHz, 400V/µs Op Amps
FEATURES
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DESCRIPTION
The LT
®
1355/LT1356 are dual and quad low power high
speed operational amplifiers with outstanding AC and DC
performance. The amplifiers feature much lower supply
current and higher slew rate than devices with comparable
bandwidth. The circuit topology is a voltage feedback
amplifier with matched high impedance inputs and the
slewing performance of a current feedback amplifier. The
high slew rate and single stage design provide excellent
settling characteristics which make the circuit an ideal
choice for data acquisition systems. Each output drives a
500Ω load to ±12V with ±15V supplies and a 150Ω load to
±2.75V on ±5V supplies. The amplifiers are stable with any
capacitive load making them useful in buffer applications.
The LT1355/LT1356 are members of a family of fast, high
performance amplifiers using this unique topology and
employing Linear Technology Corporation’s advanced
bipolar complementary processing. For a single amplifier
version of the LT1355/LT1356 see the LT1354 data sheet.
For higher bandwidth devices with higher supply currents
see the LT1357 through LT1365 data sheets. Bandwidths
of 25MHz, 50MHz, and 70MHz are available with 2mA,
4mA, and 6mA of supply current per amplifier. Singles,
duals, and quads of each amplifier are available.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. C-Load is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
12MHz Gain Bandwidth
400V/µs Slew Rate
1.25mA Maximum Supply Current per Amplifier
Unity-Gain Stable
C-Load™ Op Amp Drives All Capacitive Loads
10nV/√Hz Input Noise Voltage
800µV Maximum Input Offset Voltage
300nA Maximum Input Bias Current
70nA Maximum Input Offset Current
12V/mV Minimum DC Gain, R
L
= 1k
230ns Settling Time to 0.1%, 10V Step
280ns Settling Time to 0.01%, 10V Step
±12V Minimum Output Swing into 500Ω
±2.75V Minimum Output Swing into 150Ω
Specified at ±2.5V, ±5V, and ±15V
APPLICATIONS
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Wideband Amplifiers
Buffers
Active Filters
Data Acquisition Systems
Photodiode Amplifiers
TYPICAL APPLICATION
100kHz, 4th Order Butterworth Filter
6.81k
100pF
6.81k
11.3k
330pF
5.23k
47pF
A
V
= –1 Large-Signal Response
V
IN
–
+
1/2
LT1355
5.23k
10.2k
1000pF
–
+
1/2
LT1355
V
OUT
1355/1356 TA01
13556 TA01B
13556fc
1
LT1355/LT1356
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V
+
to V
–
).................................36V
Differential Input Voltage (Transient Only)
(Note 2) ................................................................... ±10V
Input Voltage............................................................. ±V
S
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 7)
LT1355C/LT1356C/LT1356I..................–40°C to 85°C
LT1356H (T
C
) ..................................... –40°C to 125°C
Specified Temperature Range (Note 8)
LT1355C/LT1356C ................................... 0°C to 70°C
LT1356I................................................–40°C to 85°C
LT1356H (T
C
) ..................................... –40°C to 125°C
Maximum Junction Temperature ......................... 150°C
Storage Temperature Range ..................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
PIN CONFIGURATION
LT1355
OUT A
–IN A
+IN A
V
–
TOP VIEW
1
2
3
4
A
B
N8 PACKAGE
8-LEAD PDIP
LT1355
8
7
6
5
V
+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V
–
1
2
3
4
TOP VIEW
8
A
B
S8 PACKAGE
8-LEAD PLASTIC SO
V
+
OUT B
–IN B
+IN B
7
6
5
T
JMAX
= 150°C,
θ
JA
= 130°C/W
LT1356
TOP VIEW
OUT A
T
JMAX
= 150°C,
θ
JA
= 190°C/W
LT1356
TOP VIEW
OUT A
1
2
3
4
5
6
7
B
C
A
D
14
OUT D
13 –IN D
12 +IN D
11 V
–
10
+IN C
9
8
–IN C
OUT C
1
2
3
4
5
6
7
8
B
C
A
D
16
OUT D
15 –IN D
14 +IN D
13 V
–
12
+IN C
11
–IN C
10
OUT C
9
NC
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
NC
N PACKAGE
14-LEAD PDIP
T
JMAX
= 150°C,
θ
JA
= 110°C/W
S PACKAGE
16-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 150°C/W,
θ
JC
= 30°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
LT1355CN8#PBF
LT1355CN8#TRPBF
LT1355CN8
LT1355CS8#PBF
LT1355CS8#TRPBF
1355
LT1356CN#PBF
LT1356CN#TRPBF
LT1356CN
LT1356CS#PBF
LT1356CS#TRPBF
LT1356CS
LT1356IS#PBF
LT1356IS#TRPBF
LT1356S
LT1356HS#PBF
LT1356HS#TRPBF
LT1356S
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
PACKAGE DESCRIPTION
8-Lead PDIP
8-Lead Plastic SO
14-Lead PDIP
16-Lead Plastic SO
16-Lead Plastic SO
16-Lead Plastic SO
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C < T
C
< 125°C
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/
13556fc
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LT1355/LT1356
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
I
OS
I
B
e
n
i
n
R
IN
C
IN
PARAMETER
Input Offset Voltage
CONDITIONS
T
A
= 25°C, V
CM
= 0V unless otherwise noted.
V
SUPPLY
±15V
±5V
±2.5V
±2.5V to ±15V
±2.5V to ±15V
MIN
TYP
0.3
0.3
0.4
20
80
10
0.6
70
160
11
3
12.0
2.5
0.5
13.4
3.5
1.1
–13.2
–3.4
–0.9
83
78
68
92
±15V
±15V
±5V
±5V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±15V
±5V
±2.5V
±15V
±5V
±15V
±5V
±15V
±5V
±15V
±15V
±5V
±5V
9.0
7.5
12
5
12
5
1
5
13.3
12.0
3.5
2.75
1.3
24.0
18.3
30
200
70
97
84
75
106
36
15
36
15
4
20
13.8
13.0
4.0
3.3
1.7
30
25
42
400
120
6.4
6.4
12.0
10.5
9.0
14
17
20
18
16
19
230
280
240
380
–12.0
–2.5
–0.5
MAX
0.8
0.8
1.0
70
300
UNITS
mV
mV
mV
nA
nA
nV/√Hz
pA/√Hz
MΩ
MΩ
pF
V
V
V
V
V
V
dB
dB
dB
dB
V/mV
V/mV
V/mV
V/mV
V/mV
V/mV
±V
±V
±V
±V
±V
mA
mA
mA
V/µs
V/µs
MHz
MHz
MHz
MHz
MHz
ns
ns
%
%
ns
ns
ns
ns
ns
ns
13556fc
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance
Input Resistance
Input Capacitance
Input Voltage Range
+
Input Voltage Range
–
f = 10kHz
f = 10kHz
V
CM
= ±12V
Differential
±2.5V to ±15V
±2.5V to ±15V
±15V
±15V
±15V
±15V
±5V
±2.5V
±15V
±5V
±2.5V
CMRR
Common Mode Rejection Ratio
V
CM
= ±12V
V
CM
= ±2.5V
V
CM
= ±0.5V
V
S
= ±2.5V to ±15V
V
OUT
= ±12V, R
L
= 1k
V
OUT
= ±10V, R
L
= 500Ω
V
OUT
= ±2.5V, R
L
= 1k
V
OUT
= ±2.5V, R
L
= 500Ω
V
OUT
= ±2.5V, R
L
= 150Ω
V
OUT
= ±1V, R
L
= 500Ω
R
L
= 1k, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
R
L
= 150Ω, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
V
OUT
= ±12.0V
V
OUT
= ±2.75V
V
OUT
= 0V, V
IN
= ±3V
A
V
= –2 (Note 4)
10V Peak (Note 5)
3V Peak (Note 5)
f = 200kHz, R
L
= 2k
A
V
= 1, 10% to 90%, 0.1V
A
V
= 1, 0.1V
50% V
IN
to 50% V
OUT
, 0.1V
10V Step, 0.1%, A
V
= –1
10V Step, 0.01%, A
V
= –1
5V Step, 0.1%, A
V
= –1
5V Step, 0.01%, A
V
= –1
±15V
±5V
±2.5V
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
OUT
Output Swing
I
OUT
I
SC
SR
Output Current
Short-Circuit Current
Slew Rate
Full-Power Bandwidth
GBW
Gain Bandwidth
t
r
, t
f
Rise Time, Fall Time
Overshoot
Propagation Delay
t
s
Settling Time
3
LT1355/LT1356
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
Differential Gain
Differential Phase
R
O
I
S
Output Resistance
Channel Separation
Supply Current
CONDITIONS
f = 3.58MHz, A
V
= 2, R
L
= 1k
f = 3.58MHz, A
V
= 2, R
L
= 1k
A
V
= 1, f = 100kHz
V
OUT
= ±10V, R
L
= 500Ω
Each Amplifier
Each Amplifier
T
A
= 25°C, V
CM
= 0V unless otherwise noted.
V
SUPPLY
±15V
±5V
±15V
±5V
±15V
±15V
±15V
±5V
100
MIN
TYP
2.2
2.1
3.1
3.1
0.7
113
1.0
0.9
1.25
1.20
MAX
UNITS
%
%
Deg
Deg
Ω
dB
mA
mA
The
l
denotes the specifications which apply over the temperature range 0°C ≤ T
A
≤ 70°C, V
CM
= 0V, unless otherwise noted.
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
V
SUPPLY
±15V
±5V
±2.5V
(Note 6)
±2.5V to ±15V
±2.5V to ±15V
±2.5V to ±15V
V
CM
= ±12V
V
CM
= ±2.5V
V
CM
= ±0.5V
V
S
= ±2.5V to ±15V
V
OUT
= ±12V, R
L
= 1k
V
OUT
= ±10V, R
L
= 500Ω
V
OUT
= ±2.5V, R
L
= 1k
V
OUT
= ±2.5V, R
L
= 500Ω
V
OUT
= ±2.5V, R
L
= 150Ω
V
OUT
= ±1V, R
L
= 500Ω
R
L
= 1k, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
R
L
= 150Ω, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
V
OUT
= ±11.5V
V
OUT
= ±2.5V
V
OUT
= 0V, V
IN
= ±3V
A
V
= – 2, (Note 4)
f = 200kHz, R
L
= 2k
V
OUT
= ±10V, R
L
= 500Ω
Each Amplifier
Each Amplifier
±15V
±15V
±5V
±5V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±2.5V
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
MAX
1.0
1.0
1.2
UNITS
mV
mV
mV
µV/°C
nA
nA
dB
dB
dB
dB
V/mV
V/mV
V/mV
V/mV
V/mV
V/mV
±V
±V
±V
±V
±V
mA
mA
mA
V/µs
V/µs
MHz
MHz
dB
Input V
OS
Drift
I
OS
I
B
CMRR
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
5
8
100
450
81
77
67
90
10.0
3.3
10.0
3.3
0.6
3.3
13.2
11.5
3.4
2.5
1.2
23.0
16.7
24
150
60
7.5
6.0
98
1.45
1.40
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
OUT
Output Swing
I
OUT
I
SC
SR
GBW
Output Current
Short-Circuit Current
Slew Rate
Gain Bandwidth
Channel Separation
I
S
Supply Current
mA
mA
13556fc
4
LT1355/LT1356
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
I
OS
I
B
CMRR
PARAMETER
Input Offset Voltage
The
l
denotes the specifications which apply over the –40°C ≤ T
A
≤ 85°C
and –40°C ≤ T
C
≤ 125°C temperature ranges, V
CM
= 0V unless otherwise noted. (Note 8)
CONDITIONS
V
SUPPLY
±15V
±5V
±2.5V
±2.5V to ±15V
±2.5V to ±15V
V
CM
= ±12V
V
CM
= ±2.5V
V
CM
= ±0.5V
V
S
= ±2.5V to ±15V
V
OUT
= ±12V, R
L
= 1k
V
OUT
= ±2.5V, R
L
= 1k
V
OUT
= ±2.5V, R
L
= 500Ω
V
OUT
= ±1V, R
L
= 500Ω
R
L
= 1k, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
R
L
= 500Ω, V
IN
= ±40mV
V
OUT
= ±12.7V
V
OUT
= ±3.3V
V
OUT
= 0V, V
IN
= ±3V
A
V
= –2, (Note 4)
f = 200kHz, R
L
= 2k
V
OUT
= ±10V, R
L
= 500Ω
Each Amplifier
Each Amplifier
±15V
±5V
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±2.5V
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
MAX
1.8
1.8
2.0
250
600
UNITS
mV
mV
mV
nA
nA
dB
dB
dB
dB
V/mV
V/mV
V/mV
V/mV
±V
±V
±V
mA
mA
mA
V/µs
V/µs
MHz
MHz
dB
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
80
76
66
90
6.0
4.0
1.7
1.7
12.7
3.3
1.2
12.7
6.6
16
110
43
6.0
4.6
96
1.55
1.50
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
OUT
I
OUT
I
SC
SR
GBW
Output Swing
Output Current
Short-Circuit Current
Slew Rate
Gain Bandwidth
Channel Separation
I
S
Supply Current
mA
mA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
Differential inputs of ±10V are appropriate for transient operation
only, such as during slewing. Large, sustained differential inputs will
cause excessive power dissipation and may damage the part. See Input
Considerations in the Applications Information section of this data sheet
for more details.
Note 3:
A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted indefinitely.
Note 4:
Slew rate is measured between ±10V on the output with ±6V
input for ±15V supplies and ±1V on the output with ±1.75V input for ±5V
supplies.
Note 5:
Full power bandwidth is calculated from the slew rate
measurement: FPBW = (SR)/2πV
P
.
Note 6:
This parameter is not 100% tested.
Note 7:
The LT1355C/LT1356C/LT1356I are guaranteed functional over the
operating temperature range of –40°C to 85°C. The LT1356H is guaranteed
functional over the operating temperature range of –40°C to 125°C case
temperature (T
C
).
Note 8:
The LT1355C/LT1356C are guaranteed to meet specified
performance from 0°C to 70°C. The LT1355C/LT1356C are designed,
characterized and expected to meet specified performance from –40°C
to 85°C, but are not tested or QA sampled at these temperatures. The
LT1356I is guaranteed to meet specified performance from –40°C to
85°C. The LT1356H is guaranteed to meet specified performance from
–40°C to 125°C case temperature (T
C
). The parts are pulse tested at
these temperatures. Internal warm-up drift must be taken into account
separately. Care must be taken not to exceed the maximum junction
temperature.
13556fc
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