12MHz, 400V/µs Op Amps
FEATURES DESCRIPTION
n
12MHz Gain Bandwidth
n
400V/µs Slew Rate
n
1.25mA Maximum Supply Current per Amplifier
n
Unity-Gain Stable
n
C-Load™ Op Amp Drives All Capacitive Loads
n
10nV/√Hz Input Noise Voltage
n
800µV Maximum Input Offset Voltage
n
300nA Maximum Input Bias Current
n
70nA Maximum Input Offset Current
n
12V/mV Minimum DC Gain, RL = 1k
n
230ns Settling Time to 0.1%, 10V Step
n
280ns Settling Time to 0.01%, 10V Step
n
±12V Minimum Output Swing into 500Ω
n
±2.75V Minimum Output Swing into 150Ω
n
Specified at ±2.5V, ±5V, and ±15V
APPLICATIONS
n
Wideband Amplifiers
n
Buffers
n
Active Filters
n
Data Acquisition Systems
n
Photodiode Amplifiers
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.
LT1355/LT1356
Dual and Quad
TYPICAL APPLICATION
100kHz, 4th Order Butterworth Filter
6.81k
100pF
V
IN
11.3k6.81k
330pF
–
LT1355
+
1/2
5.23k
10.2k
1000pF
5.23k
–
LT1355
+
1/2
47pF
V
1355/1356 TA01
A V = –1 Large-Signal Response
OUT
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)
Input Voltage
................................................................... ±10V
.............................................................±V
S
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 7)
LT1355C/LT1356C/LT1356I..................–40°C to 85°C
LT1356H (TC) ..................................... –40°C to 125°C
PIN CONFIGURATION
LT1355 LT1355
OUT A
–IN A
+IN A
–
V
LT1356 LT1356
OUT A
–IN A
+IN A
V
+IN B
–IN B
OUT B OUT C
TOP VIEW
1
2
A
3
N8 PACKAGE
8-LEAD PDIP
= 150°C, θJA = 130°C/W
T
JMAX
TOP VIEW
1
2
A
3
+
4
5
B
6
N PACKAGE
14-LEAD PDIP
= 150°C, θJA = 110°C/W
T
JMAX
+
8
V
7
OUT B
6
–IN B
B
+IN B
54
14
OUT D
13
–IN D
D
+IN D
12
–
11
V
10
+IN C
C
9
–IN C
87
Specified Temperature Range (Note 8)
LT1355C/LT1356C ................................... 0°C to 70°C
LT1356I ................................................–40°C to 85°C
LT1356H (TC) ..................................... –40°C to 125°C
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
TOP VIEW
OUT A
1
2
–IN A
+IN A
–
V
OUT A
–IN A
+IN A
+
V
+IN B
–IN B
OUT B OUT C
T
JMAX
A
3
4
S8 PACKAGE
8-LEAD PLASTIC SO
= 150°C, θJA = 190°C/W
T
JMAX
TOP VIEW
1
2
A
3
4
5
B
6
S PACKAGE
16-LEAD PLASTIC SO
= 150°C, θJA = 150°C/W, θJC = 30°C/W
......................... 150°C
..................–65°C to 150°C
...................300°C
+
V
8
7
OUT B
6
–IN B
B
+IN B
5
16
OUT D
15
–IN D
D
+IN D
14
–
13
V
12
+IN C
C
11
–IN C
107
98NC NC
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LT1355CN8#PBF LT1355CN8#TRPBF LT1355CN8 8-Lead PDIP 0°C to 70°C
LT1355CS8#PBF LT1355CS8#TRPBF 1355 8-Lead Plastic SO 0°C to 70°C
LT1356CN#PBF LT1356CN#TRPBF LT1356CN 14-Lead PDIP 0°C to 70°C
LT1356CS#PBF LT1356CS#TRPBF LT1356CS 16-Lead Plastic SO 0°C to 70°C
LT1356IS#PBF LT1356IS#TRPBF LT1356S 16-Lead Plastic SO –40°C to 85°C
LT1356HS#PBF LT1356HS#TRPBF LT1356S 16-Lead Plastic SO –40°C < T
< 125°C
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/
13556fc
2
LT1355/LT1356
ELECTRICAL CHARACTERISTICS
TA = 25°C, VCM = 0V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS V
V
OS
I
OS
I
B
e
n
i
n
R
IN
Input Offset Voltage ±15V
Input Offset Current ±2.5V to ±15V 20 70 nA
Input Bias Current ±2.5V to ±15V 80 300 nA
Input Noise Voltage f = 10kHz ±2.5V to ±15V 10 nV/√Hz
Input Noise Current f = 10kHz ±2.5V to ±15V 0.6 pA/√Hz
Input Resistance VCM = ±12V ±15V 70 160 MΩ
Input Resistance Differential ±15V 11 MΩ
C
IN
CMRR Common Mode Rejection Ratio V
PSRR Power Supply Rejection Ratio V
A
VOL
V
OUT
I
OUT
I
SC
SR Slew Rate A
Input Capacitance ±15V 3 pF
Input Voltage Range
Input Voltage Range
Large-Signal Voltage Gain V
+
–
= ±12V
CM
V
= ±2.5V
CM
V
= ±0.5V
CM
= ±2.5V to ±15V 92 106 dB
S
= ±12V, RL = 1k
OUT
V
= ±10V, RL = 500Ω
OUT
V
= ±2.5V, RL = 1k
OUT
V
= ±2.5V, RL = 500Ω
OUT
V
= ±2.5V, RL = 150Ω
OUT
V
= ±1V, RL = 500Ω
OUT
Output Swing RL = 1k, VIN = ±40mV
R
= 500Ω, VIN = ±40mV
L
R
= 500Ω, VIN = ±40mV
L
R
= 150Ω, VIN = ±40mV
L
R
= 500Ω, VIN = ±40mV
L
Output Current V
Short-Circuit Current V
= ±12.0V
OUT
V
= ±2.75V
OUT
= 0V, VIN = ±3V ±15V 30 42 mA
OUT
= –2 (Note 4) ±15V
V
Full-Power Bandwidth 10V Peak (Note 5)
3V Peak (Note 5)
GBW Gain Bandwidth f = 200kHz, R
, t
t
r
f
Rise Time, Fall Time AV = 1, 10% to 90%, 0.1V ±15V
Overshoot A
= 1, 0.1V ±15V
V
Propagation Delay 50% V
t
s
Settling Time 10V Step, 0.1%, AV = –1
10V Step, 0.01%, A
5V Step, 0.1%, A
5V Step, 0.01%, A
= 2k ±15V
L
to 50% V
IN
, 0.1V ±15V
OUT
= –1
V
= –1
V
= –1
V
SUPPLY
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±15V
±5V
±5V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±5V
±15V
±5V
±5V
±2.5V
±5V
±5V
±5V
±15V
±15V
±5V
±5V
MIN TYP MAX UNITS
12.0
2.5
0.5
83
78
68
12
5
12
5
1
5
13.3
12.0
3.5
2.75
1.3
24.0
18.3
200
70
9.0
7.5
0.3
0.3
0.4
13.4
3.5
1.1
–13.2
–3.4
–0.9
97
84
75
36
15
36
15
4
20
13.8
13.0
4.0
3.3
1.7
30
25
400
120
6.4
6.4
12.0
10.5
9.0
14
17
20
18
16
19
230
280
240
380
0.8
0.8
1.0
–12.0
–2.5
–0.5
mV
mV
mV
dB
dB
dB
V/mV
V/mV
V/mV
V/mV
V/mV
V/mV
±V
±V
±V
±V
±V
mA
mA
V/µs
V/µs
MHz
MHz
MHz
MHz
MHz
ns
ns
%
%
ns
ns
ns
ns
ns
ns
13556fc
V
V
V
V
V
V
3
LT1355/LT1356
ELECTRICAL CHARACTERISTICS
TA = 25°C, VCM = 0V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS V
Differential Gain f = 3.58MHz, A
Differential Phase f = 3.58MHz, A
R
O
I
S
Output Resistance AV = 1, f = 100kHz ±15V 0.7 Ω
Channel Separation V
= ±10V, RL = 500Ω ±15V 100 113 dB
OUT
Supply Current Each Amplifier
= 2, RL = 1k ±15V
V
= 2, RL = 1k ±15V
V
Each Amplifier
SUPPLY
±5V
±5V
±15V
±5V
MIN TYP MAX UNITS
2.2
2.1
3.1
3.1
1.0
0.9
1.25
1.20
The l denotes the specifications which apply over the temperature range 0°C ≤ TA ≤ 70°C, VCM = 0V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS V
V
OS
I
OS
I
B
CMRR Common Mode Rejection Ratio V
PSRR Power Supply Rejection Ratio V
A
VOL
V
OUT
I
OUT
I
SC
SR Slew Rate A
GBW Gain Bandwidth f = 200kHz, R
I
S
Input Offset Voltage ±15V
Input V
Drift (Note 6) ±2.5V to ±15V
OS
Input Offset Current ±2.5V to ±15V
Input Bias Current ±2.5V to ±15V
= ±12V
CM
V
= ±2.5V
CM
V
= ±0.5V
CM
= ±2.5V to ±15V
S
Large-Signal Voltage Gain V
Output Swing RL = 1k, V
Output Current V
Short-Circuit Current V
Channel Separation
= ±12V, RL = 1k
OUT
V
= ±10V, RL = 500Ω
OUT
V
= ±2.5V, RL = 1k
OUT
V
= ±2.5V, RL = 500Ω
OUT
V
= ±2.5V, RL = 150Ω
OUT
V
= ±1V, RL = 500Ω
OUT
= ±40mV
R
R
R
R
V
V
OUT
OUT
OUT
V
OUT
IN
= 500Ω, V
L
= 500Ω, V
L
= 150Ω, V
L
= 500Ω, V
L
= ±40mV
IN
= ±40mV
IN
= ±40mV
IN
= ±40mV
IN
= ±11.5V
= ±2.5V
= 0V, V
= ±3V ±15V
IN
= – 2, (Note 4) ±15V
= 2k ±15V
L
= ±10V, RL = 500Ω
Supply Current Each Amplifier
Each Amplifier
SUPPLY
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±15V
±5V
±5V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±5V
±5V
±15V
±15V
±5V
MIN TYP MAX UNITS
l
l
l
l
l
l
l
81
l
77
l
67
l
90 dB
l
10.0
l
3.3
l
10.0
l
3.3
l
0.6
l
3.3
l
13.2
l
11.5
l
3.4
l
2.5
l
1.2
l
23.0
l
16.7
l
24 mA
l
150
l
60
l
7.5
l
6.0
l
98 dB
l
l
5 8 µV/°C
1.0
1.0
1.2
100 nA
450 nA
1.45
1.40
%
%
Deg
Deg
mA
mA
mV
mV
mV
dB
dB
dB
V/mV
V/mV
V/mV
V/mV
V/mV
V/mV
±V
±V
±V
±V
±V
mA
mA
V/µs
V/µs
MHz
MHz
mA
mA
4
13556fc
LT1355/LT1356
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the –40°C ≤ TA ≤ 85°C
and –40°C ≤ TC ≤ 125°C temperature ranges, VCM = 0V unless otherwise noted. (Note 8)
SYMBOL PARAMETER CONDITIONS V
V
OS
I
OS
I
B
CMRR Common Mode Rejection Ratio V
PSRR Power Supply Rejection Ratio V
A
VOL
V
OUT
I
OUT
I
SC
SR Slew Rate A
GBW Gain Bandwidth f = 200kHz, R
I
S
Input Offset Voltage ±15V
Input Offset Current ±2.5V to ±15V
Input Bias Current ±2.5V to ±15V
= ±12V
CM
V
= ±2.5V
CM
V
= ±0.5V
CM
= ±2.5V to ±15V
S
Large-Signal Voltage Gain V
= ±12V, RL = 1k
OUT
V
= ±2.5V, RL = 1k
OUT
V
= ±2.5V, RL = 500Ω
OUT
V
= ±1V, RL = 500Ω
OUT
Output Swing RL = 1k, VIN = ±40mV
R
= 500Ω, VIN = ±40mV
L
R
= 500Ω, VIN = ±40mV
L
Output Current V
Short-Circuit Current V
Channel Separation V
= ±12.7V
OUT
V
= ±3.3V
OUT
= 0V, VIN = ±3V ±15V
OUT
= –2, (Note 4) ±15V
V
= 2k ±15V
L
= ±10V, RL = 500Ω ±15V
OUT
Supply Current Each Amplifier
Each Amplifier
SUPPLY
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±5V
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±5V
±5V
±5V
±15V
±5V
MIN TYP MAX UNITS
l
l
l
l
l
l
80
l
76
l
66
l
90 dB
l
6.0
l
4.0
l
1.7
l
1.7
l
12.7
l
3.3
l
1.2
l
12.7
l
6.6
l
16 mA
l
110
l
43
l
6.0
l
4.6
l
96 dB
l
l
1.8
1.8
2.0
250 nA
600 nA
1.55
1.50
mV
mV
mV
dB
dB
dB
V/mV
V/mV
V/mV
V/mV
±V
±V
±V
mA
mA
V/µs
V/µs
MHz
MHz
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
). The parts are pulse tested at
C
these temperatures. Internal warm-up drift must be taken into account
separately. Care must be taken not to exceed the maximum junction
temperature.
13556fc
5
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