Datasheet

5
LT1457
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
FREQUENCY (Hz)
0
20
40
60
100
80
120
CMRR (dB)
10M
LT1457• TPC10
10 100 1k 10k 1M100k

V
S
= ±15V
T
A
= 25°C
Gain, Phase vs Frequency
FREQUENCY (MHz)
–15
20
15
10
5
0
–5
–10
100
80
60
40
20
0
–20
25
VOLTAGE GAIN (dB)
PHASE MARGIN (DEG)
10
LT1457 • TPC16
0.1 1.0

V
S
= ±15V
T
A
= 25°C

PHASE MARGIN = 80°, C
L
= 10pF
PHASE MARGIN = 51°, C
L
= 1000pF

C
L
= 10pF

C
L
= 10pF

GAIN

PHASE

C
L
= 1000pF

C
L
= 1000pF
TEMPERATURE (°C)
2
4
6
8
10
2.5
2.0
1.5
1.0
SLEW RATE (V/µs)
GBW (MHz)
100
LT1457 • TPC18
–50–250 255075
GBW

V
S
= ±15V

SLEW FALL

SLEW RISE
TEMPERATURE (°C)
90
100
110
120
CMRR, PSRR (dB)
100
LT1457 • TPC12
–50 –25 0 7525 50

V
S
= ±5V TO ±17V FOR PSRR
V
S
= ±15V, V
CM
= ±10.5V FOR CMRR

PSRR

CMRR
Undistorted Output Swing vs
Frequency
FREQUENCY (Hz)
0
6
18
12
24
30
PEAK TO PEAK OUTPUT SWING (V)
10M
LT11457• TPC17
10k 100k 1M

V
S
= ±15V
T
A
= 25°C
TEMPERATURE (°C)
–15
–13
–11
11
13
–14
–12
±10
12
14
15
COMMON -MODE RANGE (V)
100
LT1457 • TPC11
–50 –25 0 25 7550

V
S
= ±15V
Common-Mode Rejection Ratio
vs Frequency
Common-Mode Range vs
Temperature
Common-Mode and Power Supply
Rejections vs Temperature
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
–50
–30
–10
10
30
–40
–20
0
20
40
50
SHORT-CIRCUIT CURRENT (mA)
LT1457 • TPC15
01 32

V
S
= ±15V

T
A
= –40°C

T
A
= 85°C

T
A
= 25°C

T
A
= 85°C

T
A
= –40°C

T
A
= 25°C
Short-Circuit Current vs Time
(One Output Shorted to Ground)Supply Current vs Temperature
TEMPERATURE (°C)
0
1
2
3
SUPPLY CURRENT PER AMPLIFIER (mA)
100
LT1457 • TPC14
–50 –25 0 7525 50

V
S
= ±5V

V
S
= ±15V
Slew Rate, Gain-Bandwidth
Product vs Temperature
FREQUENCY (Hz)
0
40
20
60
80
120
100
140
PSRR (dB)
10M
LT1457• TPC13
10 100 1k 10k 1M100k

T
A
= 25°C

POSITIVE
SUPPLY

NEGATIVE
SUPPLY
Power Supply Rejection Ratio
vs Frequency