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LT1079CN Datasheet Download

Part No.:
LT1079CN
Download:
Download Datasheet
Description:
[Micropower, Dual and Quad, Single Supply, Precision Op Amps]
File Size:
518 K
Page:
20 Pages
Logo:
Manufacturer:
LINER [ LINEAR TECHNOLOGY ]
PCB Prototype
 LT1079CN Datasheet Page:3LT1079CN Datasheet Page:4LT1079CN Datasheet Page:5LT1079CN Datasheet Page:6LT1079CN Datasheet Page:8LT1079CN Datasheet Page:9LT1079CN Datasheet Page:10LT1079CN Datasheet Page:11 
LT1078/LT1079
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Temperature
OFFSET CURRENT (pA)
55
SUPPLY CURRENT PER AMPLIFIER (µA)
50
V
S
=
±15V
45
40
35
30
25
–50 –25
V
S
= 5V, 0V
INPUT BIAS CURRENT (nA)
BIAS CURRENT (nA)
50
25
75
0
TEMPERATURE (°C)
0.1Hz to 10Hz Noise
T
A
= 25°C
V
S
=
±2.5V
NOISE VOLTAGE (0.4µV/DIV)
NOISE VOLTAGE (0.4µV/DIV)
CHANNEL A
VOLTAGE NOISE DENSITY (nV/√Hz)
CURRENT NOISE DENSITY (fA/√Hz)
CHANNEL B
0
2
6
4
TIME (SEC)
10Hz Voltage Noise Distribution
35
30
T
A
= 25°C
V
S
=
±2.5V
329 OP AMPS TESTED
FROM THREE RUNS
106 LT1078'S
45 LT1079'S
20
PERCENT OF UNITS
OFFSET VOLTAGE CHANGE (µV)
PERCENT OF UNITS
25
20
15
10
5
0
25
35
30
VOLTAGE NOISE DENSITY (nV/√Hz)
U W
100
LT1078/79 • TPC01
Input Bias and Offset Currents
vs Temperature
100
V
S
= 5V, 0V TO
±15V
I
OS
0
Input Bias Current
vs Common Mode Voltage
V
S
= 5V, 0V
–2
–4
T
A
= 25°C
–6
–8
–10
–12
T
A
= 125°C
T
A
= –55°C
50
0
–5
I
B
–6
125
–7
–50 –25
50
25
0
75
TEMPERATURE (°C)
100
125
–1
0
1
2
3
COMMON MODE VOLTAGE (V)
4
LT1078/79 • TPC02
LT1078/79 • TPC03
0.01Hz to 10Hz Noise
1000
T
A
= 25°C
V
S
=
±2.5V
Noise Spectrum
T
A
= 25°C
V
S
=
±2.5V
(AT V
S
=
±15V
VOLTAGE NOISE
IS 4% LESS
CURRENT NOISE
IS UNCHANGED)
300
CURRENT
NOISE
CHANNEL A
0.4µV
100
VOLTAGE
NOISE
30
1/f CORNER
0.7Hz
10
0.1
1
100
10
FREQUENCY (Hz)
1000
CHANNEL B
8
10
0
20
60
40
TIME (SEC)
80
100
LT1078/79 • TPC04
LT1078/79 • TPC05
LT1078/79 • TPC06
Distribution of Offset Voltage Drift
with Temperature (In All Packages
Except Surface Mount)
25
120
V
S
= 5V, 0V
109
V
CM
= 0.1V
120 LT1078'S
70 LT1079'S 89
520 OP AMPS
85
15
10
5
0
–5
Long Term Stability of Two
Representative Units (LT1078)
T
A
= 25°C, V
S
= 5V, 0V
V
CM
= 0.1V
1A
15
2B
10
44
47
1B
–10
–15
0
1
2
3
TIME (MONTHS)
4
5
2A
5
1
7
3 5
4 3
1
1
1
40
–2
–1
0
1
2
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
LT1078/79 • TPC08
0
LT1078/79 • TPC07
LT078/79 • TPC09
7