Datasheet

LT1990
12
1990fb
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Warm-Up Drift vs Time
Settling Time vs Output Step,
G = 1
Settling Time vs Output Step,
G = 10
Voltage Noise Density
vs Frequency
0.01 to 1Hz Noise Voltage
0.1 to 10Hz Noise Voltage
Overshoot vs Capacitive Load
Output Impedance vs Frequency
Power Supply Rejection Ratio
vs Frequency
OUTPUT STEP (V)
–10
SETTLING TIME (µs)
60
50
40
30
20
6
1990 G22
–6–8 –4 –2 0 4 82
10
OUTPUT STEP (V)
–10 6
–6–8 –4 –2 0 4 82
10
SETTLING TIME (µs)
320
300
280
260
240
220
200
180
160
140
1990 G23
TIME (S)
080
1990 G26
2010 30 50 70 90
40
60
100
TIME (S)
0
NOISE VOLTAGE (10µV/DIV)
REF
NOISE VOLTAGE (10µV/DIV)
REF
8
1990 G25
213579
4
6
10
FREQUENCY (Hz)
10
100
1000
10000
100
1000
1990 G24
VOLTAGE NOISE DENSITY (nV/√Hz)
1
10000
CAPACITIVE LOAD (pF)
10
OVERSHOOT (%)
30
25
20
15
10
5
100 1000 10000
1990 G27
0.01% OF
STEP
0.01% OF
STEP
0.1% OF
STEP
0.1% OF
STEP
0.01% OF
STEP
0.01% OF
STEP
0.1% OF
STEP
0.1% OF
STEP
V
S
= ±15V
R
L
= 10k
V
S
= ±15V
R
L
= 10k
V
OUT
= ±50mV
GAIN = 1
R
L
= 10k
V
S
= ±1.5V TO ±15V
T
A
= 25°C
V
S
= ±1.5V TO ±15V
T
A
= 25°C
G = 1
V
S
= ±1.5V TO ±15V
T
A
= 25°C
G = 1
V
S
= ±15V
V
S
= 3V, 0V
FREQUENCY (Hz)
10
OUTPUT IMPEDANCE (Ω)
100
1k
5k
100 10k 100k
1990 G19
1
1k 200k
FREQUENCY (Hz)
POWER SUPPLY REJECTION RATIO (dB)
70
60
50
40
30
20
10
0
–10
–20
–30
–40
10 1k 10k
1990 G20
100 100k 200k
V
S
= 5V, 0V
T
A
= 25°C
G = 1
G = 10
G = 1
G = 10
TIME AFTER POWER-UP (S)
0
CHANGE IN OFFSET VOLTAGE (µV)
60
40
20
0
–20
–40
–60
10 20 30 40
1990 G21
50
V
S
= ±15V
T
A
= 25°C
REFERRED TO INPUT
V
S
= 5V, 0V
T
A
= 25°C