LT2079 LINER [Linear Technology], LT2079 Datasheet

no-image

LT2079

Manufacturer Part Number
LT2079
Description
Micropower, Dual and Quad, Single Supply, Precision Op Amps
Manufacturer
LINER [Linear Technology]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT2079ACS
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT2079ACS#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT2079ACS#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT2079AIS#PBF
Manufacturer:
LT
Quantity:
503
Part Number:
LT2079AIS#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT2079AIS#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT2079CS#PBF
Manufacturer:
LT
Quantity:
249
Part Number:
LT2079IS#PBF
Manufacturer:
Maxim
Quantity:
9 400
APPLICATIONS
FEATURES
TYPICAL
TYPICAL PERFORMANCE
INPUT OFFSET VOLTAGE = 40 V
INPUT OFFSET CURRENT = 0.2nA
TOTAL POWER DISSIPATION = 240 W
COMMON MODE REJECTION = 110dB (AMPLIFIER LIMITED)
GAIN BANDWIDTH PRODUCT = 200kHz
Battery or Solar-Powered Systems
Micropower Sample-and-Hold
Thermocouple Amplifier
Micropower Filters
SO Package with Standard Pinout
Supply Current per Amplifier: 50 A Max
Offset Voltage: 70 V Max
Offset Current: 250pA Max
Voltage Noise: 0.6 V
Current Noise: 3pA
Offset Voltage Drift: 0.4 V/ C
Gain Bandwidth Product: 200kHz
Slew Rate: 0.07V/ s
Single Supply Operation
Output Sources and Sinks 5mA Load Current
Single Battery, Micropower, Gain = 100, Instrumentation Amplifier
Portable Instrumentation
Remote Sensor Amplifier
Satellite Circuitry
Input Voltage Range Includes Ground
Output Swings to Ground while Sinking Current
No Pull-Down Resistors Needed
INVERTING
1M
–INPUT
2
3
APPLICATION
+
1/2 LT2078
10.1k
A
U
P-P
P-P
, 0.1Hz to 10Hz
NONINVERTING
1
, 0.1Hz to 10Hz
10.1k
+INPUT
U
6
5
OUTPUT NOISE = 85 V
INPUT RANGE = 0.03V TO 1.8V
OUTPUT RANGE= 0.03V TO 2.3V
OUTPUTS SINK CURRENT—NO PULL-DOWN RESISTORS
+
1/2 LT2078
(Li-Ion)
B
1M
3V
8
4
= 300 V
(0.3mV
7
LT2078/79 • TA01
P-P
RMS
OUT
V
0.1Hz TO 10Hz
IN +
OVER FULL BANDWIDTH
– V
IN –
DESCRIPTION
The LT
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.
23mV)
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
2078 is a micropower dual op amp in 8-pin small
Micropower, Dual and
Quad, Single Supply,
Precision Op Amps
800
700
600
500
400
300
200
100
–120
Distribution of Input Offset Voltage
0
U
V
5000 OP AMPS
S
= 5V, 0V
–80
INPUT OFFSET VOLTAGE ( V)
–40
LT 2078/LT 2079
0
40
80
2078/79 • TA02
120
1

Related parts for LT2079

LT2079 Summary of contents

Page 1

... 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– ...

Page 2

... TOP VIEW NUMBER 1 14 OUT –IN D LT2079AC +IN D LT2079AI – LT2079C 5 10 +IN C LT2079I – OUT C S PACKAGE 14-LEAD PLASTIC SO = 150 C, = 150 1.4V unless otherwise noted LT2078C/LT2078I LT2079C/LT2079I TYP MAX MIN ...

Page 3

... LT2078C/LT2078I LT2079AC/LT2079AI LT2079C/LT2079I TYP MAX MIN TYP 1000 150 1000 600 120 600 3.5 6 3.5 0.55 1.0 0.55 95 130 95 4.4 4.2 4.4 3.9 3.5 3.9 0.07 0.04 0.07 200 200 110 110 2.2 2.3 2.2 LT2078AI/LT2079AI LT2078I/LT2079I TYP MAX MIN TYP 70 250 95 80 280 100 0.4 1.8 0.5 0.6 3.0 0.6 0.07 0.70 0 106 86 104 110 92 110 600 80 600 400 60 400 4.5 8 4.5 125 170 125 4 ...

Page 4

... 50k 13 11.0 L 0.06 LT2078AI/LT2079AI MIN = 10V 200 13V, –14. 5V 18V 11 1.4V unless otherwise noted LT2078C/LT2079C TYP MAX MIN TYP MAX 750 110 750 500 80 500 4.0 7 4.0 7 105 150 105 150 4.3 4.1 4.3 3.8 3.3 3 ...

Page 5

... Note 1: Typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers, i.e., out of 100 LT2079s (or 100 LT2078s) typically 240 op amps (or 120) will be better than the indicated specification. Note 2: This parameter is tested on a sample basis only. All noise parameters are tested with ...

Page 6

... FREQUENCY (Hz) LT2078/79 • TPC06 Warm-Up Drift 0 15V 0.7 S WARM UP DRIFT 5V 0.6 S IMMEASURABLY LOW 0.5 0.4 0.3 LT2079 0.2 LT2078 0 TIME AFTER POWER-ON (MINUTES) LT2078/79 • TPC09 Output Voltage Swing vs Load Current + 125 – 1 – – 2 – ...

Page 7

W U TYPICAL PERFORMANCE CHARACTERISTICS Gain, Phase vs Frequency 30 PHASE MARGIN 58 20 15V 5V, 0V PHASE MARGIN 15V – 100 300 FREQUENCY (kHz) LTC2078/79 TPC12 Slew Rate, Gain Bandwidth Product and ...

Page 8

LT2078/LT 2079 W U TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs Temperature 15V 5V 100 125 –50 – TEMPERATURE ( C) LT2078/79 • ...

Page 9

... Q16 Q12 4 Q11 1 Q27 Q1 600 – Q21 IN Q28 Q2 600 Q22 + + IN V Q39 175pF 6.2k 6.2k 1/2 LT2078, 1/4 LT2079 3.6k 5.6k 1.3k Q14 Q15 Q32 Q37 Q29 Q30 Q24 Q25 8.6k C1 Q26 50pF C4 2.9k 4pF C5 2.5pF Q31 C3 40pF Q18 Q19 Q23 Q10 Q17 Q20 Q34 1 ...

Page 10

... The compet- ing devices, however, cannot even sink 6nA without a pull-down resistor Since the output of the LT2078/LT2079 cannot go exactly to ground, but can only approach ground to within a few millivolts, care should be exercised to ensure that the output is not saturated ...

Page 11

... Crossover distortion will increase as the output load resistance decreases. For the lowest distortion the LT2078/ LT2079 should be operated with the output always sourc- ing current, this is usually accomplished by putting a resistor from the output to V tion with no load, the output will source and sink current through the feedback resistor ...

Page 12

... W U expected matching performance at V the two sides of the LT2078, and between amplifiers A and D, and between amplifiers B and C of the LT2079. Comparator Applications The single supply operation of the LT2078/LT2079 and its ability to swing close to ground while sinking current lends itself to use as a precision comparator with TTL compatible output ...

Page 13

... B 200k INPUT OUTPUT 3.5V –3.5V LT2078/79 • TA07 Programmable Gain Amplifier (Single Supply) 100k 18V – 1/4 LT2079 – 1/4 LT2079 CD4016B 2078/LT 2079 85V, –100V Common Mode Range Instrumentation Amplifier ( 10M 10M ...

Page 14

... Micropower Multiplier/Divider 220pF 220pF Q1 Q3 – 30k 5% 14 1/4 LT2079 30k + 5% 10k 499k GAIN 0.5% 9 – 8 1/4 LT2079 30k 5% Micropower Dead Zone Generator Q4 V SET DEAD ZONE 1M** 1M* CONTROL INPUT 0. 470k 1M* GAIN 200k 9 – 1M** 8 1/4 LT2079 1N914 ...

Page 15

U TYPICAL APPLICATIONS PACKAGE DESCRIPTION 0.010 – 0.020 45 (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254) 0.016 – 0.050 0.406 – 1.270 * DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ...

Page 16

LT2078/LT 2079 U TYPICAL APPLICATION Platinum RTD Signal Conditioner with Curvature Correction LT1004-1 ROSEMOUNT 118MF TRW MAR-6 0. METAL FILM RELATED PARTS PART NUMBER DESCRIPTION LT1178/LT1179 Dual/Quad 17 A Max, Single ...

Related keywords