Datasheet Linear Technology LT1008 — 数据表

制造商	Linear Technology
系列	LT1008

皮安输入电流、微伏失调、低噪声运算放大器

数据表

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PDF, 283 Kb, 语言: en, 文件上传: Aug 4, 2017, 页数: 16
Picoamp Input Current, Microvolt Offset, Low Noise Op Amp

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价格

打包

	LT1008CN8#PBF	LT1008IN8#PBF	LT1008S8#PBF	LT1008S8#TRPBF
N	1	2	3	4
Package	N-8 包装外形图	N-8 包装外形图	SO-8 包装外形图	SO-8 包装外形图
Package Code	N	N	S8	S8
Package Index	05-08-1510 (N8)	05-08-1510 (N8)	05-08-1610 (S8)	05-08-1610 (S8)
Pin Count	8	8	8	8

参数化

Parameters / Models	LT1008CN8#PBF	LT1008IN8#PBF	LT1008S8#PBF	LT1008S8#TRPBF
Av Min Stable, V/V	1	1	1	1
Avol, dB	66	66	66	66
Common Mode Rejection Ratio, dB	132	132	132	132
Number of Channels	1	1	1	1
Cload, pF	600	600	600	600
Demo Boards	DC417B	DC417B	DC417B	DC417B
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Enoise 1/f Corner, Hz	2.5	2.5	2.5	2.5
Enoise Density, nV/rtHz	14	14	14	14
Export Control	no	no	no	no
GBW, MHz	1	1	1	1
Ibias, nA	0.03	0.03	0.03	0.03
Inoise, pA/rtHz	0.02	0.02	0.02	0.02
Inoise 1/f Corner, Hz	120	120	120	120
Ios, µA	0.00003	0.00003	0.00003	0.00003
Iout, mA	9	9	9	9
Isupply, mA	0.38	0.38	0.38	0.38
LF Enoise, µVPP	0.5	0.5	0.5	0.5
Operating Temperature Range, °C	0 to 70	-40 to 85	0 to 70	0 to 70
Over-the-Top	no	no	no	no
PSRR, dB	132	132	132	132
Rail-to-Rail In	no	no	no	no
Rail-to-Rail Out	no	no	no	no
SR, V/µs	0.2	0.2	0.2	0.2
Shutdown	no	no	no	no
Single Supply	no	no	no	no
Type	VFB	VFB	VFB	VFB
VinCM High (from V+), V	1	1	1	1
VinCM Low (from V-), V	1	1	1	1
Voh (from V+), V	1	1	1	1
Vol (from V-), V	1	1	1	1
Vos, mV	0.03	0.03	0.03	0.03
Vos TC, µV/C	0.2	0.2	0.2	0.2
Vs Max, V	40	40	40	40
Vs Min, V	4	4	4	4

生态计划

	LT1008CN8#PBF	LT1008IN8#PBF	LT1008S8#PBF	LT1008S8#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant

应用须知

下载
Methods for Measuring Op Amp Settling Time &mdash AN10
PDF, 277 Kb, 档案已发布: Jul 1, 1985
The AN10 begins with a survey of methods for measuring op amp settling time. This commentary develops into circuits for measuring settling time to 0.0005%. Construction details and results are presented. Appended sections cover oscilloscope overload limitations and amplifier frequency compensation.
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Application Note 10
July 1985
Methods of Measuring Op Amp Settling Time
Jim Williams
Servo, DAC and data acquisition amplifiers all require
good dynamic response. In particular, the time required
for an amplifier to settle to final value after an input step
is especially important. This specification allows setting
a circuitвЂ™s timing margins with confidence that the data
produced is accurate. The settling time is the total length
of time from input step application until the amplifier remains within a specified error band around the final value. 10mV or less for a 10V step is of interest. No generalpurpose pulse generator is meant to hold output amplitude
and noise within these limits. Generator output-caused
aberration appearing at the oscilloscope probe will be
indistinguishable from amplifier output movement, producing unreliable results. The oscilloscope connection
presents additional problems. As probe capacitance rises,
AC loading of the resistor junction will influence observed
settling waveforms. The 20pF probe shown alleviates this
problem but its 10X attenuation sacrifices oscilloscope
gain. 1X probes are not suitable because of their excessive
input capacitance. An active 1X FET probe will work, but
another issue remains. Figure 1 shows one way to measure amplifier settling
time (see References 1, 2, and 3). The circuit uses the
вЂњfalse sum nodeвЂќ technique. The resistors and amplifier …
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Composite Amplifiers &mdash AN21
PDF, 330 Kb, 档案已发布: Jul 1, 1986
Applications often require an amplifier that has extremely high performance in several areas. For example, high speed and DC precision are often needed. If a single device cannot simultaneously achieve the desired characteristics, a composite amplifier made up of two (or more) devices can be configured to do the job. AN21 shows examples of composite approaches in designs combining speed, precision, low noise and high power.
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Application Note 21
July 1986
Composite Amplifiers
Jim Williams
Ampliп¬Ѓer design, regardless of the technology utilized, is
a study in compromise. Device limitations make it difп¬Ѓcult
for a particular ampliп¬Ѓer to achieve optimal speed, drift,
bias current, noise and power output speciп¬Ѓcations. As
such, various ampliп¬Ѓer families emphasizing one or more
of these areas have evolved. Some ampliп¬Ѓers are very good
attempts at doing everything well, but the best achievable
performance п¬Ѓgures are limited to dedicated designs. designed with little attention to DC biasing considerations
if a separate stabilizing stage is employed.
Figure 1 shows a composite made up of an LTВ®1012 low drift
device and an LT1022 high speed ampliп¬Ѓer. The overall circuit is a unity-gain inverter, with the summing node located
at the junction of three 10k resistors. The LT1012 monitors
this summing node, compares it to ground and drives the
LT1022вЂ™s positive input, completing a DC stabilizing loop
around the LT1022. The 10k-300pF time constant at the
LT1012 limits its response to low frequency signals. The
LT1022 handles high frequency inputs while the LT1012
stabilizes the DC operating point. The 4.7k-220О© divider
at the LT1022 prevents excessive input overdrive during …

设计须知

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3V Operation of Linear Technology Op Amps &mdash DN56
PDF, 78 Kb, 档案已发布: Feb 1, 1992
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3V Operation of Linear Technology Op Amps -Design Note 56
George Erdi
The latest trend in digital electronics is the introduction
of numerous ICs operating on regulated 3V or 3.3V
power supplies. This is a logical development to increase
circuit densities and to reduce power dissipation. In addition, many systems are directly powered by two AA
cells or 3V lithium batteries. Clearly, analog ICs which
work on 3V with good dynamic range to complement
these digital circuits are, and will be, in great demand.
Many Linear Technology operational ampliп¬Ѓers work
well on a 3V supply. The purpose of this design note
is to list these devices and their performance when
powered by 3V. The op amps can be divided into two
groups: single and dual supply devices. The single supply
op amps are optimized for, and fully speciп¬Ѓed at, a 5V
positive supply with the negative supply terminal tied
to ground. Input common mode voltage range goes
below ground, and the output swings to within a few
millivolts of ground while sinking current. Members of
the single supply family are the micropower LTВ®1077/
LT1078/LT1079 single, dual and quad op amps with
40ОјA supply current per ampliп¬Ѓer, the LT1178/LT1179 dual and quad with 13ОјA per ampliп¬Ѓer. The LT1006/
LT1013/LT1014 single, dual and quad have faster speed …

文章

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Consider New Precision Amplifiers for Updated Industrial Equipment Designs &mdash LT Journal
PDF, 154 Kb, 档案已发布: Sep 1, 2009
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LвЂ‰DESIGN FEATURES Consider New Precision Amplifiers for
Updated Industrial Equipment Designs
by Brian Black Introduction
Industrial equipment is designed for
long life cycles, so the electronic components used in industrial applications
are often chosen with significant emphasis on proven performance, quality
and reliability. Precision amplifiers are
no exception. Even if new and innovative amplifiers become available over a
productвЂ™s lifetime, a redesigned board
is often built using the same proven
op amps in the old board. Even for
entirely new applications, designers
will choose amplifiers that have proven
their mettle in other circuits, making a
choice based more on familiarity than
performance.
Although an amplifier may have
been tried and proven in a design, it
is not necessarily the best solution for
every new design. Many can benefit
from using more recently released
amplifiers, which can improve overall
system performance, reduce power …

模型线

系列: LT1008 (4)

LT1008CN8#PBF LT1008IN8#PBF LT1008S8#PBF LT1008S8#TRPBF

制造商分类

Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > Low Power Amplifiers (Is < 1mA/amp) | Low Bias Current Amplifiers (Ib < 100pA) | High Voltage Amplifiers (>12V) | Precision Amplifiers (Vos