Datasheet Linear Technology LT1169

Manufacturer	Linear Technology
Series	LT1169

Dual Low Noise, Picoampere Bias Current, JFET Input Op Amp

Datasheets

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PDF, 302 Kb, Language: en, File uploaded: Aug 6, 2017, Pages: 12
Dual Low Noise, Picoampere Bias Current, JFET Input Op Amp

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Prices

Packaging

	LT1169CN8#PBF	LT1169CS8#PBF	LT1169CS8#TRPBF
N	1	2	3
Package	N-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing
Package Code	N	S8	S8
Package Index	05-08-1510 (N8)	05-08-1610 (S8)	05-08-1610 (S8)
Pin Count	8	8	8

Parametrics

Parameters / Models	LT1169CN8#PBF	LT1169CS8#PBF	LT1169CS8#TRPBF
Av Min Stable, V/V	1	1	1
Avol, dB	73	73	73
Common Mode Rejection Ratio, dB	95	95	95
Number of Channels	2	2	2
Cload, pF	1000	1000	1000
Design Tools	LTspice Model	LTspice Model	LTspice Model
Enoise 1/f Corner, Hz	60	60	60
Enoise Density, nV/rtHz	6	6	6
Export Control	no	no	no
GBW, MHz	5.3	5.3	5.3
Ibias, nA	0.004	0.004	0.004
Inoise, pA/rtHz	0.001	0.001	0.001
Inoise 1/f Corner, Hz	0.1	0.1	0.1
Ios, µA	0.0000025	0.0000025	0.0000025
Isupply, mA	5.3	5.3	5.3
LF Enoise, µVPP	2.4	2.4	2.4
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70
Over-the-Top	no	no	no
PSRR, dB	98	98	98
Rail-to-Rail In	no	no	no
Rail-to-Rail Out	no	no	no
SR, V/µs	4.2	4.2	4.2
Shutdown	no	no	no
Single Supply	no	no	no
Type	JFET, VFB	JFET, VFB	JFET, VFB
VinCM High (from V+), V	1.5	1.5	1.5
VinCM Low (from V-), V	4	4	4
Voh (from V+), V	1	1	1
Vol (from V-), V	0.6	0.6	0.6
Vos, mV	0.6	0.6	0.6
Vos TC, µV/C	20	20	20
Vs Max, V	40	40	40
Vs Min, V	9	9	9

Eco Plan

	LT1169CN8#PBF	LT1169CS8#PBF	LT1169CS8#TRPBF
RoHS	Compliant	Compliant	Compliant

Design Notes

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Updated Operational Amplifier Selection Guide for Optimum Noise Performance &mdash DN140
PDF, 74 Kb, File published: Oct 1, 1996
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Operational Amplifier Selection Guide for
Optimum Noise Performance вЂ“ Design Note 140
Frank Cox
Eight years ago, George Erdi wrote a very useful Design
Note (DN6) that presented information to aid in the
selection of op amps for optimum noise performance,
in both graphical and tabular form. Design Note 140 is
an update of DN6. It covers new low noise op amps as
well as some high speed op amps. Although a great deal
has changed in eight years, especially in electronics,
noise is still a critical issue in op amp circuit design
and the LTВ®1028 is still the lowest noise op amp for
low source impedance applications.
The amount of noise an op amp circuit will produce
is determined by the device used, the total resistance
in the circuit, the bandwidth of the measurement, the
temperature of the circuit and the gain of the circuit. A
convenient п¬Ѓgure of merit for the noise performance
of an op amp is the spectral density or spot noise. This
is obtained by normalizing the measurement to a unit
of bandwidth. Here the unit is 1Hz and the noise is reported as вЂњnV/в€љHz.вЂќ The noise in a particular application
bandwidth can be calculated by multiplying the spot
noise by the square root of the application bandwidth. …
Download
Source Resistance Induced Distortion in Op Amps &mdash DN84
PDF, 355 Kb, File published: Jul 1, 1994
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Source Resistance Induced Distortion in Op Amps
Design Note 84
William H. Gross RS
VIN
20VP-P +
DUT вЂ“
вЂ“15V VOUT DISTORTION
ANALYZER DN84 F01 Figure 1 Results
Unfortunately there is no easy way to predict which amplifiers will have the lowest source resistance induced
distortion from the data sheets. There are two main
causes of the distortion: nonlinear input resistance and
nonlinear input capacitance. At first thought, one would
not expect the small input capacitance of an op amp to
cause distortion at a few kHz. But a 10k source is loaded 07/94/84_conv TOTAL HARMONIC DISTROTION (%) 10
OP27 0.01 12 LF356 14
0.001 0.0001
100 16 LT1169
LT1355 LT1124
10k
1k
SOURCE RESISTANCE (О©) 18 100k
DN84 F02 Figure 2. 1kHz Distortion vs Source Resistance
1 …

Articles

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Consider New Precision Amplifiers for Updated Industrial Equipment Designs &mdash LT Journal
PDF, 154 Kb, File published: 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 …

Model Line

Series: LT1169 (3)

LT1169CN8#PBF LT1169CS8#PBF LT1169CS8#TRPBF

Manufacturer's Classification

Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > High Voltage Amplifiers (>12V) | Low Noise Amplifiers ( | Low Bias Current Amplifiers (Ib < 100pA) | JFET Input Amplifiers