10
LT1492/LT1493
TYPICAL PERFORMANCE CHARACTERISTICS
UW
Warm-Up Drift vs Time
Supply Current vs Temperature
TEMPERATURE (
°C)
–50
SUPPLY
CURRENT
PER
AMPLIFIER
(mA)
25
1492/93 G28
0.45
0.35
–25
0
50
0.25
0.65
0.55
75
100
125
VS = ±15V
VS = 5V, 0V
TIME (SEC)
0
CHANGE
IN
OFFSET
VOLTAGE
(
V)
2
6
10
80
1492/93 G30
–2
–6
0
4
8
–4
–8
–10
20
40
60
10
90
30
50
70
100
N8 PACKAGE
RL =
∞
VS = ±2.5V
VS = ±15V
Supply Current vs Supply Voltage
SUPPLY VOLTAGE (V)
0
SUPPLY
CURRENT
PER
AMPLIFIER
(mA)
0.6
0.8
1.0
1492/93 G29
0.4
0.2
0
2
4
1
3
5
TA = 125°C
TA = 25°C
TA = –55°C
Input Bias Current
vs Common Mode Voltage
Input Bias Current vs Temperature
Common Mode Range
vs Temperature
TEMPERATURE (
°C)
–50
50
55
+IB
–IB
65
25
75
1492/93 G31
45
40
–25
0
50
100
125
35
30
60
INPUT
BIAS
CURRENT
(nA)
VS = 5V, 0V
IOS
COMMON MODE VOLTAGE (V)
–1
INPUT
BIAS
CURRENT
(nA)
–100
–60
–20
20
3
1492/93 G32
–140
–180
–120
–80
–40
0
–160
– 200
– 220
0
1
2
4
VS = 5V, 0V
TA = –55°C
TA = 125°C
TA = 25°C
TEMPERATURE (
°C)
–50
COMMON
MODE
RANGE
(V)
V+ – 2
V – + 2
V – – 1
V –
0
V +
1492/93 G33
– 25
25
50
75
100
125
V+ – 1
Input Referred Power Supply
Rejection Ratio vs Frequency
Input Noise Current, Noise Voltage
Density vs Frequency
FREQUENCY (Hz)
10
8
INPUT
NOISE
VOLTAGE
DENSITY
(nV/
√
Hz)
10
12
14
16
100
1k
10k
1492/93 G34
6
4
2
0
18
20
0.8
1.0
1.2
1.4
1.6
0.6
0.4
0.2
0
1.8
2.0 INPUT
NOISE
CURRENT
DENSITY
(pA/
√
Hz)
VS = ±15V
TA = 25°C
VOLTAGE NOISE
CURRENT NOISE
FREQUENCY (Hz)
10k
40
COMMON
MODE
REJECTION
RATIO
(dB)
60
80
100k
1M
10M
1492/93 G35
20
0
100
VS = ±2.5V
FREQUENCY (Hz)
40
POWER
SUPPLY
REJECTION
RATIO
(dB)
60
80
100
120
1k
100k
1M
10M
1492/93 G26
20
10k
POSITIVE SUPPLY
NEGATIVE SUPPLY
VS = ±15V
AV = 100
Common Mode Rejection Ratio
vs Frequency