Datasheet

5
LT1792
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
TIME (SEC)
0
VOLTAGE NOISE (1µV/DIV)
8
1792 G01
2
4
6
10
0.1Hz to 10Hz Voltage Noise
TEMPERATURE (°C)
–75
0
1
3
4
5
10
7
–25
25
50
1792 G03
2
8
9
6
–50 0
75
100
125
VOLTAGE NOISE (AT 1kHz) (nV/√Hz)
V
S
= ±15V
Voltage Noise
vs Chip Temperature
Voltage Gain vs Frequency
FREQUENCY (Hz)
0.01
VOLTAGE GAIN (dB)
100
140
180
1M
1792 G08
60
20
80
120
160
40
0
–20
1
100
10k
100M
Common Mode Limit
vs Temperature
TEMPERATURE (°C)
–60
COMMON MODE LIMIT
REFERRED TO POWER SUPPLY (V)
–2.0
–1.0
V
+
0
100
1792 G05
4.0
3.0
–1.5
–0.5
3.5
2.5
V
–
+2.0
–20
20
60
140
V
+
= 5V TO 20V
V
–
= –5V TO –20V
Input Bias and Offset Current
Over the Common Mode Range
COMMON-MODE RANGE (V)
–15
INPUT BIAS AND OFFSET CURRENTS (pA)
400
300
200
100
0
–10 –5 0 5
1792 G22
10 15
T
A
= 25°C
V
S
= ±15V
NOT WARMED UP
OFFSET CURRENT
BIAS CURRENT
Common Mode Rejection Ratio
vs Frequency
FREQUENCY (Hz)
40
COMMON MODE REJECTION RATIO (dB)
80
120
20
60
100
1k 100k 1M 10M
1792 G06
0
10k
T
A
= 25°C
V
S
= ±15V
FREQUENCY (Hz)
110
1
10
100
100 10k1k
1792 G02
RMS VOLTAGE NOISE DENSITY (nV/√Hz)
V
S
= ±15V
T
A
= 25°C
1/f CORNER
30Hz
Voltage Noise vs Frequency
Input Bias and Offset Current
vs Chip Temperature
TEMPERATURE (°C)
–75
INPUT BIAS AND OFFSET CURRENT (nA)
1
I
B
I
OS
10
125
1792 G04
0.1
0.3
3
0.03
0.01
–25 25 75–50 0 50 100
100
30
V
S
= ±15V
FREQUENCY (Hz)
10
POWER SUPPLY REJECTION RATIO (dB)
120
100
80
60
40
20
0
100
1k 10k 100k
1792 G07
1M 10M
T
A
= 25°C
+PSRR
–PSRR
Power Supply Rejection Ratio
vs Frequency