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LT2079AIS#TR

Description
Precision Amplifiers LT2079 - Micropower, Dual and Quad, Single Supply, Precision Op Amps
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size355KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LT2079AIS#TR Overview

Precision Amplifiers LT2079 - Micropower, Dual and Quad, Single Supply, Precision Op Amps

LT2079AIS#TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionSOP,
Reach Compliance Codenot_compliant
ECCN codeEAR99
Amplifier typeOPERATIONAL AMPLIFIER
Maximum average bias current (IIB)0.01 µA
Nominal Common Mode Rejection Ratio110 dB
Maximum input offset voltage500 µV
JESD-30 codeR-PDSO-G14
JESD-609 codee0
length8.649 mm
Humidity sensitivity level1
Negative supply voltage upper limit-22 V
Nominal Negative Supply Voltage (Vsup)-15 V
Number of functions4
Number of terminals14
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.752 mm
Nominal slew rate0.1 V/us
Supply voltage upper limit22 V
Nominal supply voltage (Vsup)15 V
surface mountYES
technologyBIPOLAR
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
Nominal Uniform Gain Bandwidth200 kHz
width3.899 mm
LT 2078/LT 2079
Micropower, Dual and
Quad, Single Supply,
Precision Op Amps
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
DESCRIPTION
The LT
®
2078 is a micropower dual op amp in 8-pin small
outline, standard surface mount package, and LT2079 is
a micropower quad op amp offered in the standard 14-pin
surface mount package. Both devices are optimized for
single supply operation at 5V.
±15V
specifications are also
provided.
Micropower performance of competing devices is achieved
at the expense of seriously degrading precision, noise,
speed and output drive specifications. The design effort of
the LT2078/LT2079 was concentrated on reducing sup-
ply current without sacrificing other parameters. The
offset voltage achieved is the lowest on any dual or quad
nonchopper stabilized op amp––micropower or other-
wise. Offset current, voltage and current noise, slew rate
and gain bandwidth product are all two to ten times better
than on previous micropower op amps.
Both the LT2078/LT2079 can be operated from a single
supply (as low as one lithium cell or two NiCd batteries).
The input range goes below ground. The all NPN output
stage swings to within a few millivolts of ground while
sinking current––no power consuming pull-down resis-
tors are needed. For applications requiring DIP packages
refer to the LT1078/LT1079.
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
s
Supply Current per Amplifier: 50µA Max
Offset Voltage: 70µV Max
Offset Current: 250pA Max
Voltage Noise: 0.6µV
P-P
, 0.1Hz to 10Hz
Current Noise: 3pA
P-P
, 0.1Hz to 10Hz
Offset Voltage Drift: 0.4µV/°C
Gain Bandwidth Product: 200kHz
Slew Rate: 0.07V/µs
Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground while Sinking Current
No Pull-Down Resistors Needed
Output Sources and Sinks 5mA Load Current
SO Package with Standard Pinout
APPLICATIO S
APPLICATIONS
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Battery or Solar-Powered Systems
Portable Instrumentation
Remote Sensor Amplifier
Satellite Circuitry
Micropower Sample-and-Hold
Thermocouple Amplifier
Micropower Filters
TYPICAL APPLICATION
APPLICATIO
Single Battery, Micropower, Gain = 100, Instrumentation Amplifier
10.1k
1M
1M
3V
(Li-Ion)
8
7
OUT
Distribution of Input Offset Voltage
800
700
V
S
= 5V, 0V
5000 OP AMPS
TYPICAL PERFORMANCE
INPUT OFFSET VOLTAGE = 40µV
INPUT OFFSET CURRENT = 0.2nA
TOTAL POWER DISSIPATION = 240µW
COMMON MODE REJECTION = 110dB (AMPLIFIER LIMITED)
GAIN BANDWIDTH PRODUCT = 200kHz
OUTPUT NOISE = 85µV
P-P
0.1Hz TO 10Hz
= 300µV
RMS
OVER FULL BANDWIDTH
INPUT RANGE = 0.03V TO 1.8V
OUTPUT RANGE = 0.03V TO 2.3V
(0.3mV
V
IN+
– V
IN–
23mV)
OUTPUTS SINK CURRENT—NO PULL-DOWN RESISTORS
+
+
INVERTING 3
–INPUT
NONINVERTING 5
+INPUT
A
1/2 LT2078
1
10.1k
6
NUMBER OF OP AMPS
2
600
500
400
300
200
100
0
–120
–80
–40
40
80
0
INPUT OFFSET VOLTAGE (µV)
120
2078/79 • TA02
B
1/2 LT2078
4
LT2078/79 • TA01
U
U
U
U
U
U
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