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LT1457 Datasheet(PDF) 4 Page - Linear Technology

Part # LT1457
Description  Dual, Precision JFET Input Op Amp
PDF  8 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1457 Datasheet(HTML) 4 Page - Linear Technology

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4
LT1457
TYPICAL PERFORMANCE CHARACTERISTICS
VS = ±15V
VCM = 0V
WARMED UP
AMBIENT TEMPERATURE (
°C)
3
10
30
100
300
1000
100
LT1457 • TPC01
025
50
75
BIAS CURRENT
OFFSET CURRENT
Input Bias and Offset Current vs
Temperature
VS = ±15V
TA = 25°C
N8 PACKAGE
S8 PACKAGE
TIME AFTER POWER ON (MINUTES)
0
60
30
120
90
150
5
LT1457 • TPC03
01234
Warm-Up Drift
VS = ±15V
TA = 70°C
TA = 25°C
COMMON-MODE INPUT VOLTAGE (V)
–20
20
0
60
40
80
120
140
100
160
15
LT1457 • TPC02
–15
–10
–5
0
5
10
Input Bias Current Over
the Common-Mode Range
Input Offset Voltage Distribution
N8 Package
Long Term Drift of
Representative Units
Voltage Gain vs Temperature
VS = ±15V
VO = ±10V
RL = 2k
RL = 1k
TEMPERATURE (
°C)
10
100
30
1000
300
100
75
LT1457 • TPC05
–50
25
–25
50
0
VS = ±15V
TA = 25°C
TIME (MONTHS)
–50
–30
–10
10
30
50
5
–40
–20
0
20
40
LT1457 • TPC06
012
4
3
0.1Hz to 10Hz Noise
Voltage Noise vs Frequency
Channel Separation vs Frequency
FREQUENCY (Hz)
10
30
50
70
20
100
10k
LT1457 • TPC07
3
10
30
100
300
1k
3k
1/f CORNER = 28Hz
VS = ±15V
TA = 25°C
VS = ±15V
TA = 25°C
TIME (SECONDS)
10
LT1457 • TPC08
024
8
6
FREQUENCY (Hz)
60
100
80
140
120
160
1M
LT1457 • TPC09
1
10
100
1k
10k
100k
VS = ±15V
TA = 25°C
VIN = 20VP-P TO 5kHz
RL = 2k
LIMITED BY
THERMAL
INTERACTION AT
DC = 132dB
LIMITED BY PIN TO
PIN CAPACITANCE
RS = 10Ω
RS = 1k
INPUT OFFSET VOLTAGE (mV)
–0.8
12
15
18
0.8
LT1457 • TPC04
9
6
0
–0.4
0
0.4
3
24
21
–0.6
–0.2
0.2
0.6
VS = ±15V
TA = 25°C
900 DUALS
(1800 OP AMPS)
TESTED FROM 3
RUNS



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