Datasheet

LT1800
9
1800fa
TYPICAL PERFORMANCE CHARACTERISTICS
Input Current Noise vs Frequency
0.1Hz to 10Hz Output Voltage
Noise
Gain Bandwidth and Phase
Margin vs Supply Voltage
Gain Bandwidth and Phase
Margin vs Temperature
Offset Voltage vs Output Current
Warm-Up Drift
vs Time (LT1800S8) Input Noise Voltage vs Frequency
OUTPUT CURRENT (mA)
–60
CHANGE IN OFFSET VOLTAGE (mV)
0
1.0
60
1800 G16
–1.0
–2.0
–30
0
30
–45
–15
15
45
2.0
–0.5
0.5
–1.5
1.5
V
S
= ±5V
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
TIME AFTER POWER-UP (SECONDS)
0
OFFSET VOLTAGE (µV)
110
60
1800 G17
80
60
20 40 80
50
40
120
100
90
70
100 120 140
V
S
= ±5V
V
S
= ±2.5V
V
S
= ±1.5V
TYPICAL PART
FREQUENCY (kHz)
20
NOISE VOLTAGE (nV/√Hz)
40
60
10
30
50
0.01 1 10 100
1800 G18
0
0.1
V
S
= 5V, 0V
NPN ACTIVE
V
CM
= 4.25V
PNP ACTIVE
V
CM
= 2.5V
FREQUENCY (kHz)
1.0
NOISE CURRENT (pA/√Hz)
2.0
3.0
0.5
1.5
2.5
0.01 1 10 100
1800 G19
0
0.1
V
S
= 5V, 0V
NPN ACTIVE
V
CM
= 4.25V
PNP ACTIVE
V
CM
= 2.5V
TIME (SECONDS)
0
OUTPUT NOISE VOLTAGE (nV)
2000
1000
0
–1000
–2000
8
1800 G20
246 107135 9
V
S
= 5V, 0V
TOTAL SUPPLY VOLTAGE (V)
0
GAIN BANDWIDTH (MHz)
PHASE MARGIN (DEG)
100
90
80
70
60 60
50
40
30
20
8
1800 G21
246 107135 9
GAIN BANDWIDTH
PRODUCT
PHASE MARGIN
T
A
= 25°C
TEMPERATURE (°C)
–55
GAIN BANDWIDTH (MHz)
PHASE MARGIN (DEG)
50
100
70
–15
25
45 125
1800 G22
80
90
60
10
20
40
50
60
30
–35 5
65
85
105
GBW PRODUCT
V
S
= ±2.5V
PHASE MARGIN
V
S
= ±2.5V
PHASE MARGIN
V
S
= ±5V
GBW PRODUCT
V
S
= ±5V