Datasheet

5
LT1221
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Common Mode Rejection Ratio
vs Frequency
Voltage Gain and Phase
vs Frequency
Total Harmonic Distortion
vs Frequency
Slew Rate vs Temperature
Closed-Loop Output Impedance
vs Frequency
Output Swing and Error
vs Settling Time (Inverting)
Output Swing and Error
vs Settling Time (Noninverting)
Gain-Bandwidth vs Temperature
FREQUENCY (Hz)
1k
0
COMMON MODE REJECTION RATIO (dB)
20
40
60
80
100
120
100k 10M 100M
LT1221 • TPC10
10k
1M
V
S
= ±15V
T
A
= 25°C
SETTLING TIME (ns)
0
OUTPUT SWING (V)
2
6
10
100
LT1220 • TPC11
–2
–6
0
4
8
–4
–8
–10
25
50
75
125
10mV
10mV
1mV
1mV
V
S
= ±15V
T
A
= 25°C
SETTLING TIME (ns)
0
OUTPUT SWING (V)
2
6
10
100
LT1221 • TPC12
–2
–6
0
4
8
–4
–8
–10
25
50
75
125
10mV
10mV
1mV
1mV
V
S
= ±15V
T
A
= 25°C
20
60
100
80
FREQUENCY (Hz)
100
–20
VOLTAGE GAIN (dB)
40
10k 1M 100M
LT1221 • TPC13
1k
100k
V
S
= ±15V
0
10M
20
60
100
80
–20
PHASE MARGIN (DEG)
40
0
V
S
= ±5V
V
S
= ±15V
V
S
= ±5V
T
A
= 25°C
FREQUENCY (Hz)
0.01
OUTPUT IMPEDANCE (Ω)
0.1
1
10
10k 1M 10M 100M
LT1221 • TPC15
0.001
100k
V
S
= ±15V
T
A
= 25°C
A
V
= 4
Frequency Response
vs Capacitive Load
180
TEMPERATURE (°C)
–50
120
GAIN-BANDWIDTH (MHz)
125
LT1221 • TPC16
0
130
150
170
–25 75
V
S
= ±15V
160
140
25 50 100
325
TEMPERATURE (°C)
–50
175
SLEW RATE (V/µs)
125
LT1221 • TPC19
0
200
250
300
–25 75
275
225
25 50 100
V
S
= ±15V
A
V
= –5
SR =
(SR
+
) + (SR
–
)
2
FREQUENCY (Hz)
10 100
0.0001
TOTAL HARMONIC DISTORTION AND NOISE (%)
0.001
0.01
1k 10k 100k
LT1220 • TPC18
A
V
= –4
V
S
= ±15V
V
O
= 3V
RMS
R
L
= 500
Ω
A
V
= 4
10
18
24
22
FREQUENCY (MHz)
1
4
VOLTAGE MAGNITUDE (dB)
14
100
LT1221 • TPC14
10
8
6
12
16
20
C = 1000pF
C = 50pF
C = 0
V
S
= ±15V
T
A
= 25°C
A
V
= –5
C = 500pF
C = 100pF