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PDF LT1354 Data sheet ( Hoja de datos )
| Número de pieza | LT1354 | |
| Descripción | 12MHz/ 400V/us Op Amp | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
s 12MHz Gain-Bandwidth
s 400V/µs Slew Rate
s 1.25mA Maximum Supply Current
s Unity Gain Stable
s C-LoadTM Op Amp Drives All Capacitive Loads
s 10nV/√Hz Input Noise Voltage
s 800µV Maximum Input Offset Voltage
s 300nA Maximum Input Bias Current
s 70nA Maximum Input Offset Current
s 12V/mV Minimum DC Gain, RL=1k
s 230ns Settling Time to 0.1%, 10V Step
s 280ns Settling Time to 0.01%, 10V Step
s ±12V Minimum Output Swing into 500Ω
s ±2.5V Minimum Output Swing into 150Ω
s Specified at ±2.5V, ±5V, and ±15V
U
APPLICATIONS
s Wideband Amplifiers
s Buffers
s Active Filters
s Data Acquisition Systems
s Photodiode Amplifiers
LT1354
12MHz, 400V/µs Op Amp
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
TYPICAL APPLICATION
100kHz, 4th Order Butterworth Filter
6.81k
100pF
5.23k
47pF
6.81k
VIN
11.3k
330pF
–
LT1354
+
5.23k
10.2k
1000pF
–
LT1354
+
VOUT
1354 TA01
AV = –1 Large-Signal Response
1354 TA02
1
1 page  
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/2πVP.
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
1.2
125°C
1.0 25°C
0.8
– 55°C
0.6
0.4
0
5 10 15
SUPPLY VOLTAGE (±V)
20
1354 G01
Input Bias Current vs
Temperature
200
175
VS =
IB =
±15V
—IB—+ +—IB—–
2
150
125
100
75
50
25
0
– 50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1354 G04
Input Common-Mode Range vs
Supply Voltage
V+
– 0.5
TA = 25°C
∆VOS < 1mV
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
V–
0
5 10 15
SUPPLY VOLTAGE (±V)
20
1354 G02
Input Noise Spectral Density
100
VS = ±15V
TA = 25°C
AV = 101
RS = 100k
in
10
en
10
1
1 0.1
10 100 1k 10k 100k
FREQUENCY (Hz)
1354 G05
Input Bias Current vs
Input Common-Mode Voltage
200
VS = ±15V
150
TA =
IB =
25°C
—IB—+ +—IB—–
2
100
50
0
–50
–15 –10 –5
0
5 10 15
INPUT COMMON-MODE VOLTAGE (V)
1354 G03
Open-Loop Gain vs
Resistive Load
100
TA = 25°C
VS = ±15V
90 VS = ±5V
80
70
60
50
10
100 1k
LOAD RESISTANCE (Ω)
10k
1354 G06
5
5 Page 
LT1354
APPLICATIONS INFORMATION
slows down the amplifier which improves the phase
margin by moving the unity gain frequency away from the
pole formed by the output impedance and the capacitive
load. The zero created by the RC combination adds phase
to ensure that even for very large load capacitances, the
total phase lag can never exceed 180 degrees (zero phase
margin) and the amplifier remains stable.
SI PLIFIED SCHE ATIC
V+
R1
800Ω
+IN RC
–IN
OUT
C CC
V – 1354 SS01
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
N8 Package
8-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.300 – 0.325
(7.620 – 8.255)
0.045 – 0.065
(1.143 – 1.651)
0.130 ± 0.005
(3.302 ± 0.127)
0.009 – 0.015
(0.229 – 0.381)
+0.035
0.325 –0.015
( )8.255
+0.889
–0.381
0.065
(1.651)
TYP
0.100 ± 0.010
(2.540 ± 0.254)
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
0.125
(3.175)
MIN
0.018 ± 0.003
(0.457 ± 0.076)
0.020
(0.508)
MIN
0.400*
(10.160)
MAX
87
65
0.255 ± 0.015*
(6.477 ± 0.381)
12
34
N8 1197
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LT1354.PDF ] | |
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