Datasheet Linear Technology LT1881

Manufacturer	Linear Technology
Series	LT1881

Dual Rail-to-Rail Output, Picoamp Input Precision Op Amps

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PDF, 310 Kb, Language: en, File uploaded: Aug 6, 2017, Pages: 18
Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps

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Prices

Packaging

	LT1881ACN8#PBF	LT1881ACS8#PBF	LT1881ACS8#TRPBF	LT1881AIN8#PBF	LT1881AIS8#PBF	LT1881AIS8#TRPBF	LT1881CN8#PBF	LT1881CS8#PBF	LT1881CS8#TRPBF	LT1881IN8#PBF	LT1881IS8#PBF	LT1881IS8#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	N-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	N-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	N-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing	N-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing
Package Code	N	S8	S8	N	S8	S8	N	S8	S8	N	S8	S8
Package Index	05-08-1510 (N8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1510 (N8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1510 (N8)	05-08-1610 (S8)	05-08-1610 (S8)	05-08-1510 (N8)	05-08-1610 (S8)	05-08-1610 (S8)
Pin Count	8	8	8	8	8	8	8	8	8	8	8	8

Parametrics

Parameters / Models	LT1881ACN8#PBF	LT1881ACS8#PBF	LT1881ACS8#TRPBF	LT1881AIN8#PBF	LT1881AIS8#PBF	LT1881AIS8#TRPBF	LT1881CN8#PBF	LT1881CS8#PBF	LT1881CS8#TRPBF	LT1881IN8#PBF	LT1881IS8#PBF	LT1881IS8#TRPBF
Av Min Stable, V/V	1	1	1	1	1	1	1	1	1	1	1	1
Avol, dB	64	64	64	64	64	64	64	64	64	64	64	64
Common Mode Rejection Ratio, dB	128	128	128	128	128	128	128	128	128	128	128	128
Number of Channels	2	2	2	2	2	2	2	2	2	2	2	2
Cload, pF	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000
Design Tools	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model	LTspice Model
Enoise 1/f Corner, Hz	1	1	1	1	1	1	1	1	1	1	1	1
Enoise Density, nV/rtHz	14	14	14	14	14	14	14	14	14	14	14	14
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
GBW, MHz	1	1	1	1	1	1	1	1	1	1	1	1
Ibias, nA	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Inoise, pA/rtHz	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03	0.03
Inoise 1/f Corner, Hz	10	10	10	10	10	10	10	10	10	10	10	10
Ios, µA	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001	0.0001
Iout, mA	10	10	10	10	10	10	10	10	10	10	10	10
Isupply, mA	0.65	0.65	0.65	0.65	0.65	0.65	0.65	0.65	0.65	0.65	0.65	0.65
LF Enoise, µVPP	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85
Over-the-Top	no	no	no	no	no	no	no	no	no	no	no	no
PSRR, dB	132	132	132	132	132	132	132	132	132	132	132	132
Rail-to-Rail	Output	Output	Output	Output	Output	Output	Output	Output	Output	Output	Output	Output
Rail-to-Rail In	no	no	no	no	no	no	no	no	no	no	no	no
Rail-to-Rail Out	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
SR, V/µs	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35
Shutdown	no	no	no	no	no	no	no	no	no	no	no	no
Single Supply	no	no	no	no	no	no	no	no	no	no	no	no
Ts (0.1%), ns	30000	30000	30000	30000	30000	30000	30000	30000	30000	30000	30000	30000
Type	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB	VFB
VinCM High (from V+), V	1	1	1	1	1	1	1	1	1	1	1	1
VinCM Low (from V-), V	1	1	1	1	1	1	1	1	1	1	1	1
Voh (from V+), V	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12	0.12
Vol (from V-), V	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02
Vos, mV	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025	0.025
Vos TC, µV/C	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Vs Max, V	40	40	40	40	40	40	40	40	40	40	40	40
Vs Min, V	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4	2.4

Eco Plan

	LT1881ACN8#PBF	LT1881ACS8#PBF	LT1881ACS8#TRPBF	LT1881AIN8#PBF	LT1881AIS8#PBF	LT1881AIS8#TRPBF	LT1881CN8#PBF	LT1881CS8#PBF	LT1881CS8#TRPBF	LT1881IN8#PBF	LT1881IS8#PBF	LT1881IS8#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LT1882 LT1882

Design Notes

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Dual 25ВµV Micropower Op Amp Fits in 3mm x 3mm Package &mdash DN331
PDF, 82 Kb, File published: Feb 2, 2004
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Dual 25ВµV Micropower Op Amp Fits in 3mm Г— 3mm Package
Design Note 331
Glen Brisebois
Introduction
Conventional monolithic micropower op amps with a
wide supply voltage range require a large die area and
therefore, a large package and footprint. The unconventional LTВ®6011 dual op amp п¬Ѓts 25ОјV input precision
micropower operation and wide 2.7V to 36V supply range
in a tiny new packageвЂ”its 3mm Г— 3mm DFN package
is so small it doesnвЂ™t even have leads. The LT6011 also
provides rail-to-rail output swing and utilizes superbeta
input transistors to achieve picoampere input currents.
Hall Sensor Ampliп¬Ѓer
Figure 1 shows the LT6011 applied as a low power Hall
sensor ampliп¬Ѓer. The magnetic sensitivity of a Hall sensor is proportional to the DC excitation voltage applied
across it. With a 1V bias voltage, the sensitivity of this
Hall sensor is speciп¬Ѓed as 4mV/mTesla of magnetic
п¬Ѓeld. At that level of DC bias, however, the 400О© bridge
consumes 2.5mA. Reducing the excitation voltage would
reduce the power consumption, but it would also reduce
the sensitivity. This is where the beauty of precision
micropower ampliп¬Ѓcation becomes especially apparent.
The LT1790-1.25 micropower reference provides a …

Articles

Download
New Rail-to-Rail Output Op Amps Bring Precision Performance to Low Voltage Systems &mdash LT Journal
PDF, 370 Kb, File published: May 1, 2000
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DESIGN FEATURES New Rail-to-Rail Output Op Amps
Bring Precision Performance to
Low Voltage Systems
by Alexander Strong
and Gary Maulding Introduction
Linear Technology has recently
released several new high precision
op amps for use in low voltage systems. The LT1677, LT1881, LT1882,
LT1884 and LT1885 all operate on
power supplies from 3V or lower up to
36V and have rail-to-rail output voltage swing. These amplifiers allow high
precision circuits to be implemented
on low voltage power supplies,
including single positive supplies.
Rail-to-rail output stages maintain
the output signal dynamic range by
eliminating the base-emitter voltage
drops of conventional emitter-follower
output stages. Offset voltages are trimmed to less than 80ВµV, with the low
temperature drift and low noise to be
expected from bipolar transistor
designs. High open-loop voltage gains
maintain this accuracy over the output swing range. …

Model Line

Series: LT1881 (12)

LT1881ACN8#PBF LT1881ACS8#PBF LT1881ACS8#TRPBF LT1881AIN8#PBF LT1881AIS8#PBF LT1881AIS8#TRPBF LT1881CN8#PBF LT1881CS8#PBF LT1881CS8#TRPBF LT1881IN8#PBF LT1881IS8#PBF LT1881IS8#TRPBF

Manufacturer's Classification

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