ChipFind - документация

Электронный компонент: LT1357

Скачать:  PDF   ZIP
1
LT1357
25MHz, 600V/
s Op Amp
TYPICAL APPLICATIO
N
U
DAC I-to-V Converter
A
V
= 1 Large-Signal Response
1357 TA02
1357 TA01
0.1
F
5k
6pF
V
OUT
5k
565A-TYPE
DAC
INPUTS
12
+
LT1357
s
25MHz Gain Bandwidth
s
600V/
s Slew Rate
s
2.5mA Maximum Supply Current
s
Unity-Gain Stable
s
C-Load
TM
Op Amp Drives All Capacitive Loads
s
8nV/
Hz Input Noise Voltage
s
600
V Maximum Input Offset Voltage
s
500nA Maximum Input Bias Current
s
120nA Maximum Input Offset Current
s
20V/mV Minimum DC Gain, R
L
=1k
s
115ns Settling Time to 0.1%, 10V Step
s
220ns Settling Time to 0.01%, 10V Step
s
12V Minimum Output Swing into 500
s
2.5V Minimum Output Swing into 150
s
Specified at
2.5V,
5V, and
15V
The LT
1357 is a high speed, very high slew rate opera-
tional amplifier with outstanding AC and DC performance.
The LT1357 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
500
load to
12V with
15V supplies and a 150
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 LT1357 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 LT1357 see the LT1358/LT1359 data
sheet. For higher bandwidth devices with higher supply
current see the LT1360 through LT1365 data sheets. For
lower supply current amplifiers see the LT1354 and LT1355/
LT1356 data sheets. Singles, duals, and quads of each
amplifier are available.
FEATURES
DESCRIPTIO
N
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load is a trademark of Linear Technology Corporation
s
Wideband Amplifiers
s
Buffers
s
Active Filters
s
Data Acquisition Systems
s
Photodiode Amplifiers
APPLICATIO
N
S
U
V
I
k
V
A
LSB
OS
OS
OUT
VOL
+
( )
+
<
5
1
2
LT1357
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
ABSOLUTE
M
AXI
M
U
M
RATINGS
W
W
W
U
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 I
N
FOR
M
ATIO
N
W
U
U
8
7
6
5
4
3
2
1
NULL
IN
+IN
V
NC
V
OUT
V
+
NULL
TOP VIEW
N8 PACKAGE, 8-LEAD PLASTIC DIP
T
JMAX
= 150
C,
JA
= 130
C/ W
Consult factory for Industrial and Military grade parts.
T
JMAX
= 150
C,
JA
= 190
C/ W
8
7
6
5
4
3
2
1
NULL
IN
+IN
V
NC
V
OUT
V
+
NULL
TOP VIEW
S8 PACKAGE, 8-LEAD PLASTIC SOIC
ORDER PART
NUMBER
ORDER PART
NUMBER
S8 PART MARKING
1357
LT1357CS8
LT1357CN8
SYMBOL
PARAMETER
CONDITIONS
V
SUPPLY
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
15V
0.2
0.6
mV
5V
0.2
0.6
mV
2.5V
0.3
0.8
mV
I
OS
Input Offset Current
2.5V to
15V
40
120
nA
I
B
Input Bias Current
2.5V to
15V
120
500
nA
e
n
Input Noise Voltage
f = 10kHz
2.5V to
15V
8
nV/
Hz
i
n
Input Noise Current
f = 10kHz
2.5V to
15V
0.8
pA/
Hz
R
IN
Input Resistance
V
CM
=
12V
15V
35
80
M
Differential
15V
6
M
C
IN
Input Capacitance
15V
3
pF
Input Voltage Range
+
15V
12.0
13.4
V
5V
2.5
3.5
V
2.5V
0.5
1.1
V
Input Voltage Range
15V
13.2 12.0
V
5V
3.3
2.5
V
2.5V
0.9
0.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
12V
15V
80
97
dB
V
CM
=
2.5V
5V
78
84
dB
V
CM
=
0.5V
2.5V
68
75
dB
PSRR
Power Supply Rejection Ratio
V
S
=
2.5V to
15V
92
106
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
12V, R
L
= 1k
15V
20.0
65
V/mV
V
OUT
=
10V, R
L
= 500
15V
7.0
25
V/mV
V
OUT
=
2.5V, R
L
= 1k
5V
20.0
45
V/mV
V
OUT
=
2.5V, R
L
= 500
5V
7.0
25
V/mV
V
OUT
=
2.5V, R
L
= 150
5V
1.5
6
V/mV
V
OUT
=
1V, R
L
= 500
2.5V
7.0
30
V/mV
T
A
= 25
C, V
CM
= 0V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
3
LT1357
SYMBOL
PARAMETER
CONDITIONS
V
SUPPLY
MIN
TYP
MAX
UNITS
T
A
= 25
C, V
CM
= 0V unless otherwise noted.
ELECTRICAL CHARACTERISTICS
V
OUT
Output Swing
R
L
= 1k, V
IN
=
40mV
15V
13.3
13.8
V
R
L
= 500
, V
IN
=
40mV
15V
12.0
12.8
V
R
L
= 500
, V
IN
=
40mV
5V
3.5
4.0
V
R
L
= 150
, V
IN
=
40mV
5V
2.5
3.3
V
R
L
= 500
, V
IN
=
40mV
2.5V
1.3
1.7
V
I
OUT
Output Current
V
OUT
=
12V
15V
24.0
30
mA
V
OUT
=
2.5V
5V
16.7
25
mA
I
SC
Short-Circuit Current
V
OUT
= 0V, V
IN
=
3V
15V
30
42
mA
SR
Slew Rate
A
V
= 2, (Note 3)
15V
300
600
V/
s
5V
150
220
V/
s
Full Power Bandwidth
10V Peak, (Note 4)
15V
9.6
MHz
3V Peak, (Note 4)
5V
11.7
MHz
GBW
Gain Bandwidth
f = 200kHz, R
L
= 2k
15V
18
25
MHz
5V
15
22
MHz
2.5V
20
MHz
t
r
, t
f
Rise Time, Fall Time
A
V
= 1, 10%-90%, 0.1V
15V
8
ns
5V
9
ns
Overshoot
A
V
= 1, 0.1V
15V
27
%
5V
27
%
Propagation Delay
50% V
IN
to 50% V
OUT
, 0.1V
15V
9
ns
5V
11
ns
t
s
Settling Time
10V Step, 0.1%, A
V
= 1
15V
115
ns
10V Step, 0.01%, A
V
= 1
15V
220
ns
5V Step, 0.1%, A
V
= 1
5V
110
ns
5V Step, 0.01%, A
V
= 1
5V
380
ns
Differential Gain
f = 3.58MHz, A
V
= 2, R
L
= 1k
15V
0.1
%
5V
0.1
%
Differential Phase
f = 3.58MHz, A
V
= 2, R
L
= 1k
15V
0.50
Deg
5V
0.35
Deg
R
O
Output Resistance
A
V
= 1, f = 100kHz
15V
0.3
I
S
Supply Current
15V
2.0
2.5
mA
5V
1.9
2.4
mA
SYMBOL
PARAMETER
CONDITIONS
V
SUPPLY
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
15V
q
0.8
mV
5V
q
0.8
mV
2.5V
q
1.0
mV
Input V
OS
Drift
(Note 5)
2.5V to
15V
q
5
8
V/
C
I
OS
Input Offset Current
2.5V to
15V
q
180
nA
I
B
Input Bias Current
2.5V to
15V
q
750
nA
CMRR
Common Mode Rejection Ratio
V
CM
=
12V
15V
q
79
dB
V
CM
=
2.5V
5V
q
77
dB
V
CM
=
0.5V
2.5V
q
67
dB
PSRR
Power Supply Rejection Ratio
V
S
=
2.5V to
15V
q
90
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
12V, R
L
= 1k
15V
q
15
V/mV
V
OUT
=
10V, R
L
= 500
15V
q
5
V/mV
V
OUT
=
2.5V, R
L
= 1k
5V
q
15
V/mV
V
OUT
=
2.5V, R
L
= 500
5V
q
5
V/mV
V
OUT
=
2.5V, R
L
= 150
5V
q
1
V/mV
V
OUT
=
1V, R
L
= 500
2.5V
q
5
V/mV
0
C
T
A
70
C, V
CM
= 0V unless otherwise noted.
4
LT1357
V
OUT
Output Swing
R
L
= 1k, V
IN
=
40mV
15V
q
13.2
V
R
L
= 500
, V
IN
=
40mV
15V
q
11.5
V
R
L
= 500
, V
IN
=
40mV
5V
q
3.4
V
R
L
= 150
, V
IN
=
40mV
5V
q
2.3
V
R
L
= 500
, V
IN
=
40mV
2.5V
q
1.2
V
I
OUT
Output Current
V
OUT
=
11.5V
15V
q
23.0
mA
V
OUT
=
2.3V
5V
q
15.3
mA
I
SC
Short-Circuit Current
V
OUT
= 0V, V
IN
=
3V
15V
q
25
mA
SR
Slew Rate
A
V
= 2, (Note 3)
15V
q
225
V/
s
5V
q
125
V/
s
GBW
Gain-Bandwidth
f = 200kHz,R
L
= 2k
15V
q
15
MHz
5V
q
12
MHz
I
S
Supply Current
15V
q
2.9
mA
5V
q
2.8
mA
SYMBOL
PARAMETER
CONDITIONS
V
SUPPLY
MIN
TYP
MAX
UNITS
ELECTRICAL CHARACTERISTICS
0
C
T
A
70
C, V
CM
= 0V unless otherwise noted.
V
OS
Input Offset Voltage
15V
q
1.3
mV
5V
q
1.3
mV
2.5V
q
1.5
mV
Input V
OS
Drift
(Note 5)
2.5V to
15V
q
5
8
V/
C
I
OS
Input Offset Current
2.5V to
15V
q
300
nA
I
B
Input Bias Current
2.5V to
15V
q
900
nA
CMRR
Common Mode Rejection Ratio
V
CM
=
12V
15V
q
78
dB
V
CM
=
2.5V
5V
q
76
dB
V
CM
=
0.5V
2.5V
q
66
dB
PSRR
Power Supply Rejection Ratio
V
S
=
2.5V to
15V
q
90
dB
A
VOL
Large-Signal Voltage Gain
V
OUT
=
12V, R
L
= 1k
15V
q
10.0
V/mV
V
OUT
=
10V, R
L
= 500
15V
q
2.5
V/mV
V
OUT
=
2.5V, R
L
= 1k
5V
q
10.0
V/mV
V
OUT
=
2.5V, R
L
= 500
5V
q
2.5
V/mV
V
OUT
=
2.5V, R
L
= 150
5V
q
0.6
V/mV
V
OUT
=
1V, R
L
= 500
2.5V
q
2.5
V/mV
V
OUT
Output Swing
R
L
= 1k, V
IN
=
40mV
15V
q
13.0
V
R
L
= 500
, V
IN
=
40mV
15V
q
11.0
V
R
L
= 500
, V
IN
=
40mV
5V
q
3.4
V
R
L
= 150
, V
IN
=
40mV
5V
q
2.1
V
R
L
= 500
, V
IN
=
40mV
2.5V
q
1.2
V
I
OUT
Output Current
V
OUT
=
11V
15V
q
22
mA
V
OUT
=
2.1V
5V
q
14
mA
I
SC
Short-Circuit Current
V
OUT
= 0V, V
IN
=
3V
15V
q
24
mA
SR
Slew Rate
A
V
= 2, (Note 3)
15V
q
180
V/
s
5V
q
100
V/
s
GBW
Gain-Bandwith
f = 200kHz, R
L
= 2k
15V
q
14
MHz
5V
q
11
MHz
I
S
Supply Current
15V
q
3.0
mA
5V
q
2.9
mA
SYMBOL
PARAMETER
CONDITIONS
V
SUPPLY
MIN
TYP
MAX
UNITS
40
C
T
A
85
C, V
CM
= 0V unless otherwise noted. (Note 6)
5
LT1357
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 details.
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/2
V
P
.
Note 5: This parameter is not 100% tested.
Note 6: The LT1357 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 PERFOR
M
A
N
CE CHARACTERISTICS
U
W
Input Common-Mode Range vs
Supply Voltage
Input Bias Current vs
Input Common-Mode Voltage
SUPPLY VOLTAGE (
V)
0.5
SUPPLY CURRENT (mA)
1.5
1.0
3.0
2.5
2.0
10
5
0
15
20
1357
G01
55
C
25
C
125
C
INPUT COMMON-MODE VOLTAGE (V)
200
INPUT BIAS CURRENT (nA)
0
100
400
300
200
100
15
10
0
10
15
5
5
1357
G03
V
S
=
15V
T
A
= 25
C
I
B
=
I
B
+ + I
B
--------
2
SUPPLY VOLTAGE (
V)
V
COMMON-MODE RANGE (V)
2.0
0.5
1.0
1.5
V
+
1.0
0.5
2.0
1.5
10
5
0
15
20
1357
G02
T
A
= 25
C
V
OS
< 1mV
Supply Current vs Supply Voltage
and Temperature
Open-Loop Gain vs
Resistive Load
TEMPERATURE (
C)
0
INPUT BIAS CURRENT (nA)
150
100
50
450
400
300
350
200
250
50
25
25
100
125
50
75
0
V
S
=
15V
I
B
=
I
B
+ + I
B
--------
2
1358/1359 G04
LOAD RESISTANCE (
)
10
50
OPEN-LOOP GAIN (dB)
60
100
100
10k
1357
G06
80
70
1k
90
V
S
=
5V
V
S
=
15V
T
A
= 25
C
FREQUENCY (Hz)
10
1
INPUT VOLTAGE NOISE (nV/
Hz)
10
100
0.1
INPUT CURRENT NOISE (pA/
Hz)
1
10
e
n
1k
100
100k
10k
1357
G05
V
S
=
15V
T
A
= 25
C
A
V
= 101
R
S
= 100k
i
n
Input Noise Spectral Density
Input Bias Current vs
Temperature