Datasheet

9
LT1218/LT1219
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
LT1218 Gain and Phase
Shift vs Frequency
FREQUENCY (kHz)
VOLTAGE GAIN (dB)
PHASE SHIFT (DEG)
70
60
50
40
30
20
10
0
–10
–20
–30
140
120
100
80
60
40
20
0
–20
–40
–60
1 100 1000 10000
LT1218/19 • TPC12
10
PHASE
GAIN
V
S
= ±2.5V
LT1219 Gain and Phase
Shift vs Frequency
FREQUENCY (kHz)
VOLTAGE GAIN (dB)
PHASE SHIFT (DEG)
70
60
50
40
30
20
10
0
–10
–20
–30
140
120
100
80
60
40
20
0
–20
–40
–60
1 100 1000 10000
LT1218/19 • TPC13
10
PHASE
GAIN
V
S
= ±2.5V
C
L
= 0.1µF
Noise Current Spectrum
FREQUENCY (Hz)
1
CURRENT NOISE (pA/√Hz)
2.5

2.0

1.5

1.0

0.5

0

10 100 1000
LT1218/19 • TPC11
V
S
= 5V, 0V

V
CM
= 4V
V
CM
= 2.5V
Noise Voltage Spectrum
LT1218 Gain Bandwidth and
Phase Margin vs Supply Voltage
SUPPLY VOLTAGE (V)
0
FREQUENCY (kHz)
PHASE MARGIN (DEG)
15
25
LT1218/19 • TPC
510 20
400
350
300
250
200
150
100
50
0
80
70
60
50
40
30
20
10
0
30
PHASE MARGIN
GBW
LT1218 Common Mode Rejection
Ratio vs Frequency
FREQUENCY (kHz)
1
COMMON MODE REJECTION RATIO (dB)
100
90
80
70
60
50
40
30
20
10
0
10 100 1000
LT1218/19 • TPC15
V
S
= ±2.5V
LT1219 Power Supply Rejection
Ratio vs Frequency
FREQUENCY (kHz)
1
POWER SUPPLY REJECTION RATIO (dB)
100
90
80
70
60
50
40
30
20
10
0
10 100 1000
LT1218/19 • TPC16
V
S
= ±2.5V
POSITIVE SUPPLY
NEGATIVE SUPPLY
FREQUENCY (Hz)
1
NOISE VOLTAGE (nV/√Hz)
100
90
80
70
60
50
40
30
20
10
0
10 100 1000
LT1218/19 • TPC10
V
S
= 5V, 0V

V
CM
= 4V
V
CM
= 2.5V