LT1355/LT1356
Dual and Quad
12MHz, 400V/µs Op Amps
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
12MHz Gain Bandwidth
400V/µs Slew Rate
1.25mA Maximum Supply Current per Amplifier
Unity-Gain Stable
C-Load
TM
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
±12.5V
Minimum Output Swing into 500Ω
±3V
Minimum Output Swing into 150Ω
Specified at
±2.5V, ±5V,
and
±15V
The LT1355/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
±12.5V
with
±15V
supplies and a 150Ω load
to
±3V
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load is a trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Wideband Amplifiers
Buffers
Active Filters
Data Acquisition Systems
Photodiode Amplifiers
TYPICAL APPLICATIO
100kHz, 4th Order Butterworth Filter
6.81k
100pF
5.23k
47pF
6.81k
V
IN
11.3k
330pF
–
1/2
LT1355
5.23k
10.2k
1000pF
–
1/2
LT1355
V
OUT
+
+
1355/1356 TA01
U
A
V
= –1 Large-Signal Response
1355/1356 TA02
U
U
1
LT1355/LT1356
ABSOLUTE
MAXIMUM
RATINGS
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
PACKAGE/ORDER INFORMATION
TOP VIEW
OUT A
–IN A
+IN A
V
–
1
2
A
3
4
N8 PACKAGE
8-LEAD PDIP
B
6
5
–IN B
+IN B
8
7
V
+
OUT B
ORDER PART
NUMBER
LT1355CN8
T
JMAX
= 150°C,
θ
JA
= 130°C/ W
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
ORDER PART
NUMBER
LT1356CN
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
N PACKAGE
14-LEAD PDIP
T
JMAX
= 150°C,
θ
JA
= 110°C/ W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
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
MAX
0.8
0.8
1.0
70
300
UNITS
mV
mV
mV
nA
nA
nV/√Hz
pA/√Hz
MΩ
MΩ
pF
I
OS
I
B
e
n
i
n
R
IN
C
IN
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Current
Input Resistance
Input Resistance
Input Capacitance
f = 10kHz
f = 10kHz
V
CM
=
±12V
Differential
2
U
U
W
W W
U
W
(Note 1)
Operating Temperature Range (Note 7) .. – 40°C to 85°C
Specified Temperature Range (Note 8) ... – 40°C to 85°C
Maximum Junction Temperature (See Below)
Plastic Package ................................................ 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
TOP VIEW
OUT A
–IN A
+IN A
V
–
1
2
A
3
4
S8 PACKAGE
8-LEAD PLASTIC SO
B
6
5
–IN B
+IN B
8
7
V
+
OUT B
ORDER PART
NUMBER
LT1355CS8
S8 PART MARKING
1355
ORDER PART
NUMBER
LT1356CS
T
JMAX
= 150°C,
θ
JA
= 190°C/ W
TOP VIEW
OUT A
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
NC
S PACKAGE
16-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 150°C/ W
±2.5V
to
±15V
±2.5V
to
±15V
±15V
±15V
±15V
LT1355/LT1356
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
Input Voltage Range
+
T
A
= 25°C, V
CM
= 0V unless otherwise noted.
V
SUPPLY
±15V
±5V
±2.5V
±15V
±5V
±2.5V
MIN
12.0
2.5
0.5
TYP
13.4
3.5
1.1
–13.2 –12.0
–3.4 –2.5
–0.9 –0.5
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
±15V
±5V
±15V
±5V
±15V
±15V
±15V
±5V
100
9.0
7.5
12
5
12
5
1
5
13.3
12.5
3.5
3.0
1.3
25
20
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
2.2
2.1
3.1
3.1
0.7
113
1.0
0.9
1.25
1.20
MAX
UNITS
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
%
%
Deg
Deg
Ω
dB
mA
mA
CONDITIONS
Input Voltage Range
–
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
=
±12.5V
V
OUT
=
±3V
V
OUT
= 0V, V
IN
=
±3V
A
V
= – 2, (Note 4)
10V Peak, (Note 5)
3V Peak, (Note 5)
f = 200kHz, R
L
= 2k
±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
A
V
= 1, 10%-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
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
s
Settling Time
Differential Gain
Differential Phase
R
O
I
S
Output Resistance
Channel Separation
Supply Current
3
LT1355/LT1356
0°C
≤
T
A
≤
70°C, V
CM
= 0V unless otherwise noted.
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
ELECTRICAL CHARACTERISTICS
CONDITIONS
The
q
denotes the specifications which apply over the temperature range
V
SUPPLY
±15V
±5V
±2.5V
q
q
q
q
q
q
q
q
q
q
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
(Note 6)
±2.5V
to
±15V
±2.5V
to
±15V
±2.5V
to
±15V
5
8
100
450
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
=
±12V
V
OUT
=
±2.8V
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
±2.5V
±15V
±15V
±5V
±5V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±15V
±15V
±5V
81
77
67
90
10.0
3.3
10.0
3.3
0.6
3.3
13.2
12.0
3.4
2.8
1.2
24.0
18.7
24
150
60
7.5
6.0
98
1.45
1.40
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
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
The
q
denotes the specifications which apply over the temperature range – 40°C
≤
T
A
≤
85°C, V
CM
= 0V unless otherwise noted. (Note 8)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
V
SUPPLY
±15V
±5V
±2.5V
±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
±15V
±15V
±5V
±5V
±15V
±5V
±2.5V
MIN
q
q
q
q
q
q
q
q
q
q
q
q
q
q
TYP
MAX
1.5
1.5
1.7
8
200
550
UNITS
mV
mV
mV
µV/°C
nA
nA
dB
dB
dB
dB
V/mV
V/mV
V/mV
V/mV
Input V
OS
Drift
I
OS
I
B
CMRR
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
(Note 6)
5
80
76
66
90
7.0
1.7
7.0
1.7
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
4
LT1355/LT1356
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
The
q
denotes the specifications which apply over the temperature range
– 40°C
≤
T
A
≤
85°C, V
CM
= 0V unless otherwise noted. (Note 8)
CONDITIONS
V
OUT
=
±2.5V,
R
L
= 150Ω
V
OUT
=
±1V,
R
L
= 500Ω
V
SUPPLY
±5V
±2.5V
±15V
±15V
±
5V
±
5V
±
2.5V
±15V
±
5V
±15V
±15V
±
5V
±15V
±5V
±15V
±15V
±5V
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
MIN
0.4
1.7
13.0
11.5
3.4
2.6
1.2
23.0
17.3
23
120
50
7.0
5.5
98
TYP
MAX
UNITS
V/mV
V/mV
±V
±V
±V
±V
±V
mA
mA
mA
V/µs
V/µs
MHz
MHz
dB
V
OUT
Output Swing
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
=
±
2.6V
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
I
OUT
I
SC
SR
GBW
Output Current
Short-Circuit Current
Slew Rate
Gain Bandwidth
Channel Separation
I
S
Supply Current
1.50
1.45
mA
mA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
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 are guaranteed functional over the
operating temperature range of –40°C to 85°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. For
guaranteed I-grade parts, consult the factory.
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Supply Voltage
and Temperature
1.4
V
+
– 0.5
T
A
= 25°C
∆V
OS
< 1mV
COMMON MODE RANGE (V)
SUPPLY CURRENT (mA)
125°C
1.0
25°C
–1.5
–2.0
INPUT BIAS CURRENT (nA)
1.2
0.8
0.6
0.4
0
5
10
15
SUPPLY VOLTAGE (±V)
20
1355/1356 G01
U W
– 55°C
Input Common Mode Range vs
Supply Voltage
200
Input Bias Current vs
Input Common Mode Voltage
V
S
=
±15V
T
A
= 25°C
I
B
+ + I
B
–
I
B
= ————
2
–1.0
150
100
2.0
1.5
1.0
0.5
V
–
0
5
10
15
SUPPLY VOLTAGE (±V)
20
1355/1356 G02
50
0
–50
–15
–10
–5
0
5
10
INPUT COMMON MODE VOLTAGE (V)
15
1355/1356 G03
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
