Datasheet

LT1115
6
1115fa
Capacitance Load Handling
Common Mode Limit Over
Temperature
Voltage Gain vs Supply Voltage
SUPPLY VOLTAGE (V)
1
10
100
VOLTAGE GAIN (V/µV)
0 ± 20
± 5
± 10
± 15
T
A
= 25°C
R
L
= 2kΩ
R
L
= 600Ω
LT1115 • TPC21
Voltage Gain vs Load Resistance
LOAD RESISTANCE (kΩ)
0.1
1
VOLTAGE GAIN (V/µV)
10
100
1
10
V
S
= ±18V
T
A
= 25
°
C
I
LMAX
= 27mA AT 25°C
LT1115 • TPC22
Voltage Gain vs Frequency
FREQUENCY (Hz)
20
VOLTAGE GAIN (dB)
50
70
10k
100k 1M
10M
100M
0
60
30
40
10
–10
V
S
= ±18V
T
A
= 25
°
C
C
L
= 10pF
GAIN
PHASE
20
50
70
0
60
30
40
10
–10
PHASE MARGIN (DEGREES)
LT1115 • TPC20
Gain, Phase vs Frequency
Common Mode Rejection Ratio
vs Frequency
Power Supply Rejection Ratio
vs Frequency
FREQUENCY (Hz)
V
S
= ±18V
T
A
= 25
°
C
POWER SUPPLY REJECTION RATIO (dB)
0
60
80
100
120
140
160
20
40
10k 100k 1M 10M0.1 1 10 100 1k
POSITIVE
SUPPLY
NEGATIVE
SUPPLY
LT1115 • TPC26
Large-Signal Transient Response
FPO
A
V
= –1
R
S
= R
f
= 2k
C
f
= 30pF
5V/DIVISION
1µs/DIVISION
FREQUENCY (Hz)
0.01
VOLTAGE GAIN (dB)
10k
100k 1M 10M
0.1
1
10 100
1k
100M
–20
0
60
80
100
120
140
160
20
40
V
S
= ± 18V
T
A
= 25
°
C
R
L
= 2k
LT1115 • TPC19
CAPACITIVE LOAD, C
L
(pF)
10
OVERSHOOT (% )
100 1000
10000
V
S
= ±18V
T
A
= 25
°
C
20
50
70
80
0
60
30
40
10
A
V
= –1, R
S
= 2k
A
V
= – 10
R
S
= 200Ω
A
V
= – 100
R
S
= 20Ω
LT1115 • TPC23
+
–
R
S
C
L
30pF
2k
COMMON MODE LIMIT (V)
REFERRED TO POWER SUPPLY
–1
–2
–3
–4
+4
+3
+2
+1
V
+
V
S
= ± 18V
V
S
= ± 5V
V
S
= ± 5V TO ±18V
TEMPERATURE (°C)
0
30
15
75
60
45
V
–
LT1115 • TPC24
FREQUENCY (Hz)
COMMON MODE REJECTION RATIO (dB)
10k
100k
1M
10M
10 100
1k
0
60
80
100
120
140
20
40
V
S
= ± 18V
T
A
= 25
°
C
LT1115 • TPC25
TYPICAL PERFOR A CE CHARACTERISTICS
UW