LT1354
12MHz, 400V/µs Op Amp
FEATURES
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DESCRIPTION
The LT
®
1354 is a low power, high speed, high slew rate
operational amplifier with outstanding AC and DC perfor-
mance. The LT1354 has much lower supply current, lower
input offset voltage, lower input bias current, and higher
DC gain than devices with comparable bandwidth. The
circuit topology is a voltage feedback amplifier with the
slewing characteristics of a current feedback amplifier.
The amplifier is a single gain stage with outstanding
settling characteristics which makes the circuit an ideal
choice for data acquisition systems. The output drives a
500Ω load to
±12V
with
±15V
supplies and a 150Ω load
to
±2.5V
on
±5V
supplies. The amplifier is also stable with
any capacitive load which makes it useful in buffer or cable
driver applications.
The LT1354 is a member of a family of fast, high perfor-
mance amplifiers using this unique topology and employ-
ing Linear Technology Corporation’s advanced bipolar
complementary processing. For dual and quad amplifier
versions of the LT1354 see the LT1355/LT1356 data
sheet. For higher bandwidth devices with higher supply
current see the LT1357 through LT1365 data sheets.
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
12MHz Gain-Bandwidth
400V/µs Slew Rate
1.25mA Maximum Supply Current
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
±12V
Minimum Output Swing into 500Ω
±2.5V
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
A
V
= –1 Large-Signal Response
100kHz, 4th Order Butterworth Filter
6.81k
100pF
5.23k
47pF
6.81k
V
IN
11.3k
330pF
–
LT1354
5.23k
10.2k
1000pF
–
LT1354
V
OUT
+
+
1354 TA01
U
U
U
1354 TA02
1
LT1354
ABSOLUTE
MAXIMUM
RATINGS
Total Supply Voltage (V
+
to V
–
) ............................... 36V
Differential Input Voltage (Transient Only, Note 1) ...
±10V
Input Voltage ............................................................±V
S
Output Short-Circuit Duration (Note 2) ............ Indefinite
Operating Temperature Range ................ –40°C to 85°C
Specified Temperature Range (Note 6) ... –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
PACKAGE/ORDER INFORMATION
TOP VIEW
NULL
–IN
+IN
V
–
1
2
3
4
8
7
6
5
NULL
V
+
V
OUT
NC
ORDER PART
NUMBER
LT1354CN8
N8 PACKAGE, 8-LEAD PLASTIC DIP
T
JMAX
= 150°C,
θ
JA
= 130°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
12.0
2.5
0.5
13.4
3.5
1.1
–13.2
– 3.4
– 0.9
80
78
68
92
±15V
±15V
±5V
±5V
±5V
±2.5V
12
5
12
5
1
5
97
84
75
106
36
15
36
15
4
20
–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
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 Capacitance
Input Voltage Range
+
f = 10kHz
f = 10kHz
V
CM
=
±12V
Differential
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
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
2
U
U
W
W W
U
W
TOP VIEW
NULL
–IN
+IN
V
–
1
2
3
4
8
7
6
5
NULL
V
+
V
OUT
NC
ORDER PART
NUMBER
LT1354CS8
S8 PART MARKING
1354
S8 PACKAGE, 8-LEAD PLASTIC SOIC
T
JMAX
= 150°C,
θ
JA
= 190°C/ W
±2.5V
to
±15V
±2.5V
to
±15V
±15V
±15V
±15V
±15V
±5V
±2.5V
±15V
±5V
±2.5V
±15V
±5V
±2.5V
LT1354
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OUT
PARAMETER
Output Swing
CONDITIONS
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
=
±2.5V
V
OUT
= 0V, V
IN
=
±3V
A
V
= –2, (Note 3)
10V Peak, (Note 4)
3V Peak, (Note 4)
f = 200kHz, R
L
= 2k
T
A
= 25°C, V
CM
= 0V unless otherwise noted.
V
SUPPLY
±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
±5V
9.0
7.5
MIN
13.3
12.0
3.5
2.5
1.3
24.0
16.7
30
200
70
TYP
13.8
12.5
4.0
3.1
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
1.0
0.9
1.25
1.20
MAX
UNITS
±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
mA
mA
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
t
s
Settling Time
Differential Gain
Differential Phase
R
O
I
S
Output Resistance
Supply Current
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 5)
±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
±15V
±15V
±5V
±5V
±5V
±2.5V
±15V
±5V
±2.5V
q
q
q
q
q
q
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
Input V
OS
Drift
I
OS
I
B
CMRR
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
5
8
100
450
79
77
67
90
10.0
3.3
10.0
3.3
0.6
3.3
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
3
LT1354
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OUT
PARAMETER
Output Swing
CONDITIONS
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
=
±2.3V
V
OUT
= 0V, V
IN
=
±3V
A
V
= –2, (Note 3)
f = 200kHz, R
L
= 2k
0°C
≤
T
A
≤
70°C, V
CM
= 0V unless otherwise noted.
V
SUPPLY
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±15V
±5V
q
q
q
q
q
q
q
q
q
q
q
q
q
q
MIN
13.2
11.5
3.4
2.3
1.2
23.0
15.3
24
150
60
7.5
6.0
TYP
MAX
UNITS
±V
±V
±V
±V
±V
mA
mA
mA
V/µs
V/µs
MHz
MHz
I
OUT
I
SC
SR
GBW
I
S
Output Current
Short-Circuit Current
Slew Rate
Gain-Bandwidth
Supply Current
1.45
1.40
mA
mA
–40°C
≤
T
A
≤
85°C, V
CM
= 0V unless otherwise noted. (Note 6)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
V
SUPPLY
±15V
±5V
±2.5V
(Note 5)
±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
=
±11V
V
OUT
=
±2.1V
V
OUT
= 0V, V
IN
=
±3V
A
V
= –2, (Note 3)
f = 200kHz, R
L
= 2k
±15V
±15V
±5V
±5V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±15V
±5V
±15V
±5V
±2.5V
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
MAX
1.5
1.5
1.7
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
Input V
OS
Drift
I
OS
I
B
CMRR
Input Offset Current
Input Bias Current
Common Mode Rejection Ratio
5
8
200
550
78
76
66
90
7.0
1.7
7.0
1.7
0.4
1.7
13.0
11.0
3.4
2.1
1.2
22
14
23
120
50
7.0
5.5
1.50
1.45
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
V
OUT
Output Swing
I
OUT
I
SC
SR
GBW
I
S
Output Current
Short-Circuit Current
Slew Rate
Gain Bandwith
Supply Current
mA
mA
4
LT1354
ELECTRICAL CHARACTERISTICS
The
q
denotes specifications that apply over the full specified temperature
range.
Note 1:
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 dutails.
Note 2:
A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted indefinitely.
Note 3:
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 4:
Full power bandwidth is calculated from the slew rate
measurement: FPBW = SR/2πV
P
.
Note 5:
This parameter is not 100% tested.
Note 6:
The LT1354 is designed, characterized and expected to meet these
extended temperature limits, but is not tested at – 40°C and at 85°C.
Guaranteed I grade parts are available; consult factory.
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Supply Voltage
and Temperature
1.4
V
+
–0.5
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
1354
G01
Input Bias Current vs
Temperature
200
175
V
S
=
±15V
I
B
+ + I
B
–
I
B
= ————
2
100
INPUT VOLTAGE NOISE (nV/√Hz)
INPUT BIAS CURRENT (nA)
125
100
75
50
25
0
– 50
OPEN-LOOP GAIN (dB)
150
–25
0
25
50
75
TEMPERATURE (°C)
U W
–55°C
Input Common-Mode Range vs
Supply Voltage
200
T
A
= 25°C
∆V
OS
< 1mV
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
1354
G02
50
0
–50
–15
–10
–5
0
5
10
INPUT COMMON-MODE VOLTAGE (V)
15
1354
G03
Input Noise Spectral Density
10
V
S
=
±15V
T
A
= 25°C
A
V
= 101
R
S
= 100k
i
n
e
n
1
100
Open-Loop Gain vs
Resistive Load
T
A
= 25°C
V
S
=
±15V
V
S
=
±5V
INPUT CURRENT NOISE (pA/√Hz)
90
80
10
70
60
1
100
125
10
100
1k
10k
FREQUENCY (Hz)
0.1
100k
1354
G05
50
10
100
1k
LOAD RESISTANCE (Ω)
10k
1354
G06
1354
G04
5
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