參數(shù)資料
型號: LF156-LF256-LF356
廠商: 意法半導(dǎo)體
英文描述: WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
中文描述: 寬帶單J - FET的運(yùn)算放大器
文件頁數(shù): 1/23頁
文件大?。?/td> 1079K
代理商: LF156-LF256-LF356
LF155/LF156/LF256/LF257/LF355/LF356/LF357
JFET Input Operational Amplifiers
General Description
These are the first monolithic JFET input operational ampli-
fiers to incorporate well matched, high voltage JFETs on the
same chip with standard bipolar transistors (BI-FET
Tech-
nology). These amplifiers feature low input bias and offset
currents/low offset voltage and offset voltage drift, coupled
with
offset
adjust
which
does
not
degrade
common-mode rejection. The devices are also designed for
high slew rate, wide bandwidth, extremely fast settling time,
low voltage and current noise and a low 1/f noise corner.
drift
or
Features
Advantages
n
Replace expensive hybrid and module FET op amps
n
Rugged JFETs allow blow-out free handling compared
with MOSFET input devices
n
Excellent for low noise applications using either high or
low source impedance—very low 1/f corner
n
Offset adjust does not degrade drift or common-mode
rejection as in most monolithic amplifiers
n
New output stage allows use of large capacitive loads
(5,000 pF) without stability problems
n
Internal compensation and large differential input voltage
capability
Applications
n
Precision high speed integrators
n
Fast D/A and A/D converters
n
High impedance buffers
n
Wideband, low noise, low drift amplifiers
n
Logarithmic amplifiers
n
Photocell amplifiers
n
Sample and Hold circuits
Common Features
n
Low input bias current:
n
Low Input Offset Current:
n
High input impedance:
n
Low input noise current:
n
High common-mode rejection ratio:
n
Large dc voltage gain:
30pA
3pA
10
12
100 dB
106 dB
Uncommon Features
LF155/
LF355
LF156/
LF256/
LF356
1.5
LF257/
LF357
(A
V
=5)
1.5
Units
j
Extremely
fast settling
time to
0.01%
j
Fast slew
rate
j
Wide gain
bandwidth
j
Low input
noise
voltage
4
μs
5
12
50
V/μs
2.5
5
20
MHz
20
12
12
Simplified Schematic
00564601
*
3pF in LF357 series.
BI-FET
, BI-FET II
are trademarks of National Semiconductor Corporation.
December 2001
L
2001 National Semiconductor Corporation
DS005646
www.national.com
相關(guān)PDF資料
PDF描述
LF156 WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
LF156H Series Monolithic JFET Input Operational Amplifiers
LF156AH Series Monolithic JFET Input Operational Amplifiers
LF156H JFET-Input Operational Amplifiers Low Supply Current High Speed
LF156AH JFET-Input Operational Amplifiers Low Supply Current High Speed
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LF156N 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
LF156QML 制造商:TI 制造商全稱:Texas Instruments 功能描述:LF156QML JFET Input Operational Amplifiers
LF156-X/883 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Operational Amplifier
LF157 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:WIDE BANDWIDTH SINGLE J-FET OPERATIONAL AMPLIFIERS
LF157A 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Series Monolithic JFET Input Operational Amplifiers