7
LT1168
1168fa
0.1Hz to 10Hz Noise Voltage,
G = 1
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TIME (SEC)
0
NOISE VOLTAGE (2µV/DIV)
8
1168 G10
2
4
5
10
6
1
3
9
7
V
S
= ±15V
T
A
= 25°C
0.1Hz to 10Hz Noise Voltage,
RTI G = 1000
TIME (SEC)
0
NOISE VOLTAGE (0.2µV/DIV)
8
1168 G11
2
4
5
10
6
1
3
9
7
V
S
= ±15V
T
A
= 25°C
FREQUENCY (Hz)
1
10
CURRENT NOISE DENSITY (fA/√Hz)
100
1000
10 100 1000
1168 G12
V
S
= ±15V
T
A
= 25°C
RS
1/f CORNER = 55Hz
Current Noise Density
vs Frequency
0.1Hz to 10Hz Current Noise
TIME (SEC)
0
NOISE CURRENT (5pA/DIV)
8
1168 G13
2
4
5
10
6
1
3
9
7
V
S
= ±15V
T
A
= 25°C
Short-Circuit Current vs Time
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
0
–50
(SINK) (SOURCE)
OUTPUT CURRENT (mA)
–40
–20
–10
0
50
20
1
2
1168 G14
–30
30
40
10
3
T
A
= –40°C
V
S
= ±15V
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
T
A
= 85°C
T
A
= 25°C
Output Impedance vs Frequency
FREQUENCY (Hz)
1
OUTPUT IMPEDANCE (Ω)
10
100
1k
10k 100k 1M
1168 G15
0.1
1k
V
S
= ± 15V
T
A
= 25°C
G = 1 TO 1000
Overshoot vs Capacitive Load
Input Bias Current Input Offset Current
CAPACITIVE LOAD (pF)
10
40
OVERSHOOT (%)
50
60
70
80
100 1000 10000
1168 G16
30
20
10
0
90
100
V
S
= ±15V
V
OUT
= ± 50mV
R
L
=
∞
G = 100, 1000
G = 10
G = 1
INPUT BIAS CURRENT (pA)
–200
OUTPUT VOLTAGE (V)
30
40
50
120
1168 G17
20
10
0
–120
+I
B
+I
B
–I
B
–40
40
200
V
S
±15V
T
A
= 25°C
302 N8 (2 LOTS)
313 SO-8 (2 LOTS)
615 TOTAL PARTS
INPUT OFFSET CURRENT (pA)
–120
PERCENT OF UNITS (%)
30
40
50
40
1168 G18
20
10
0
–80
–40
0
80
120
V
S
= ±15V
T
A
= 25°C
302 N8 (2 LOTS)
313 SO-8 (2 LOTS)
615 TOTAL PARTS
