LT1361/LT1362
Dual and Quad
50MHz, 800V/µs Op Amps
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
50MHz Gain Bandwidth
800V/µs Slew Rate
5mA Maximum Supply Current per Amplifier
Unity-Gain Stable
C-Load
TM
Op Amp Drives All Capacitive Loads
9nV/√Hz Input Noise Voltage
1mV Maximum Input Offset Voltage
1µA Maximum Input Bias Current
250nA Maximum Input Offset Current
±13V
Minimum Output Swing into 500Ω
±3.2V
Minimum Output Swing into 150Ω
4.5V/mV Minimum DC Gain, R
L
=1k
60ns Settling Time to 0.1%, 10V Step
0.2% Differential Gain, A
V
=2, R
L
=150Ω
0.3° Differential Phase, A
V
=2, R
L
=150Ω
Specified at
±2.5V, ±5V,
and
±15V
The LT1361/LT1362 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
±13V
with
±15V
supplies and a 150Ω load to
±3.2V
on
±5V
supplies. The amplifiers are stable with any
capacitive load making them useful in buffer or cable
driving applications.
The LT1361/LT1362 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 LT1361/LT1362 see the LT1360 data sheet.
For higher bandwidth devices with higher supply currents
see the LT1363 through LT1365 data sheets. For lower
supply current amplifiers see the LT1354 to LT1359 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
APPLICATIO S
s
s
s
s
s
s
Wideband Amplifiers
Buffers
Active Filters
Video and RF Amplification
Cable Drivers
Data Acquisition Systems
TYPICAL APPLICATIO
2
Cable Driver Frequency Response
A
V
= –1 Large-Signal Response
0
GAIN (dB)
–2
IN
V
S
=
±15V
V
S
=
±10V
V
S
=
±2.5V
V
S
=
±5V
+
OUT
75Ω
–4
–6
1/2
LT1361
–
510Ω
510Ω
75Ω
–8
1
10
FREQUENCY (MHz)
100
1361/1362 TA02
1361/1362 TA01
U
U
U
1
LT1361/LT1362
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
LT1361CN8
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
LT1362CN
–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
(Note 4)
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
80
0.3
9
0.9
20
50
5
3
MAX
1.0
1.0
1.2
250
1.0
UNITS
mV
mV
mV
nA
µA
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 8) ...–40°C to 85°C
Specified Temperature Range (Note 9) ....–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
LT1361CS8
S8 PART MARKING
1361
ORDER PART
NUMBER
LT1362CS
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
LT1361/LT1362
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
Input Voltage Range
+
CONDITIONS
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
3.4
1.1
–13.2
–3.2
–0.9
86
79
68
93
±15V
±15V
±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
±15V
±5V
±15V
±5V
±15V
±5V
±15V
±5V
±15V
±15V
±15V
±5V
100
35
25
4.5
3.0
3.0
1.5
2.5
13.5
13.0
3.5
3.2
1.3
26
21
40
600
250
92
84
74
105
9.0
6.5
6.4
4.2
5.2
13.9
13.6
4.0
3.8
1.7
34
29
54
800
350
12.7
18.6
50
37
32
3.1
4.3
35
27
5.2
6.4
60
90
65
0.20
0.20
0.04
0.02
0.40
0.30
0.07
0.26
1.4
113
4.0
3.8
5.0
4.8
–12.0
–2.5
–0.5
MAX
UNITS
V
V
V
V
V
V
dB
dB
dB
dB
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
%
%
%
%
Deg
Deg
Deg
Deg
Ω
dB
mA
mA
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
= 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
=
±13V
V
OUT
=
±3.2V
V
OUT
= 0V, V
IN
=
±3V
A
V
= – 2, (Note 5)
10V Peak, (Note 6)
3V Peak, (Note 6)
f = 200kHz
±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
f = 3.58MHz, A
V
= 2, R
L
= 150Ω
f = 3.58MHz, A
V
= 2, R
L
= 1k
t
s
Settling Time
Differential Gain
Differential Phase
f = 3.58MHz, A
V
= 2, R
L
= 150Ω
f = 3.58MHz, A
V
= 2, R
L
= 1k
R
O
I
S
Output Resistance
Channel Separation
Supply Current
A
V
= 1, f = 1MHz
V
OUT
=
±10V,
R
L
= 500Ω
Each Amplifier
Each Amplifier
3
LT1361/LT1362
0°C
≤
T
A
≤
70°C, V
CM
= 0V unless otherwise noted.
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
ELECTRICAL CHARACTERISTICS
CONDITIONS
(Note 4)
The
q
denotes the specifications which apply over the temperature range
V
SUPPLY
±15V
±5V
±2.5V
±2.5V
to
±15V
±2.5V
to
±15V
±2.5V
to
±15V
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
µA
dB
dB
dB
dB
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 7)
9
12
350
1.5
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
= 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
=
±12.8V
V
OUT
=
±3.1V
V
OUT
= 0V, V
IN
=
±3V
A
V
= – 2, (Note 5)
f = 200kHz
V
OUT
=
±10V,
R
L
= 500Ω
Each Amplifier
Each Amplifier
±15V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±15V
±15V
±5V
±15V
±5V
±15V
±15V
±5V
84
77
66
91
3.6
2.4
2.4
1.0
2.0
13.4
12.8
3.4
3.1
1.2
25
20
32
475
185
31
22
98
5.8
5.6
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
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 9)
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
CONDITIONS
(Note 4)
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
= 500Ω
V
OUT
=
±2.5V,
R
L
= 150Ω
V
OUT
=
±1V,
R
L
= 500Ω
±15V
±15V
±5V
±5V
±2.5V
±15V
±5V
±2.5V
q
q
q
q
q
q
q
q
q
q
q
q
q
q
q
MIN
TYP
MAX
2.0
2.0
2.2
UNITS
mV
mV
mV
µV/°C
nA
µA
dB
dB
dB
dB
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
(Note 7)
9
12
400
1.8
84
77
66
90
2.5
1.5
1.5
0.6
1.3
PSRR
A
VOL
Power Supply Rejection Ratio
Large-Signal Voltage Gain
4
LT1361/LT1362
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OUT
PARAMETER
Output Swing
The
q
denotes the specifications which apply over the temperature range
– 40°C
≤
T
A
≤
85°C, V
CM
= 0V unless otherwise noted. (Note 9)
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
=
±12.0V
V
OUT
=
±3.0V
V
OUT
= 0V, V
IN
=
±3V
A
V
= – 2, (Note 5)
f = 200kHz
V
OUT
=
±10V,
R
L
= 500Ω
Each Amplifier
Each Amplifier
V
SUPPLY
±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
MIN
13.4
12.0
3.4
3.0
1.2
24
20
30
450
175
30
20
98
TYP
MAX
UNITS
±V
±V
±V
±V
±V
mA
mA
mA
V/µs
V/µs
MHz
MHz
dB
I
OUT
I
SC
SR
GBW
Output Current
Short-Circuit Current
Slew Rate
Gain Bandwidth
Channel Separation
I
S
Supply Current
6.0
5.8
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:
Input offset voltage is pulse tested and is exclusive of warm-up drift.
Note 5:
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 6:
Full power bandwidth is calculated from the slew rate
measurement: FPBW = SR/2πV
P
.
Note 7:
This parameter is not 100% tested.
Note 8:
The LT1361C/LT1362C are guaranteed functional over the
operating temperature range of –40°C to 85°C.
Note 9:
The LT1361C/LT1362C are guaranteed to meet specified
performance from 0°C to 70°C. The LT1361C/LT1362C 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
6
COMMON MODE RANGE (V)
125°C
4
25°C
–1.5
–2.0
INPUT BIAS CURRENT (µA)
5
SUPPLY CURRENT (mA)
3
– 55°C
2
1
0
5
10
15
SUPPLY VOLTAGE (±V)
20
1361/1362 G01
U W
Input Common Mode Range vs
Supply Voltage
V
+
–0.5
–1.0
T
A
= 25°C
∆V
OS
< 1mV
0.6
0.5
0.4
0.3
0.2
0.1
Input Bias Current vs
Input Common Mode Voltage
V
S
=
±15V
T
A
= 25°C
I
B
+ + I
B
–
I
B
= ————
2
2.0
1.5
1.0
0.5
V
–
0
5
10
15
SUPPLY VOLTAGE (±V)
20
1361/1362 G02
0
–15
–10
–5
0
5
10
INPUT COMMON MODE VOLTAGE (V)
15
1361/1362 G03
5
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