LT1457 Linear Technology, LT1457 Datasheet - Page 4

• Manufacturer Part Number: LT1457
• Description: Dual/ Precision JFET Input Op Amp
• Manufacturer: Linear Technology

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