Datasheet

8
LT1028/LT1128
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
LT1128
Large-Signal Transient Response
FREQUENCY (Hz)
10
OUTPUT IMPEDANCE (Ω)
1
10
100
100k
LT1028/1128 • TPC34
0.1
0.01
0.001
100
1k
10k
1M
I
O
= 1mA
V
S
= ±15V
T
A
= 25°C
LT1128
LT1028
LT1128
LT1028
A
V
= +1000
A
V
= +5
LT1028
Slew Rate, Gain-Bandwidth
Product Over Temperature
LT1128
Slew Rate, Gain-Bandwidth
Product Over Temperature
LT1028
Slew Rate, Gain-Bandwidth Product
vs Over-Compensation Capacitor
LT1128
Slew Rate, Gain-Bandwidth Product
vs Over-Compensation CapacitorClosed-Loop Output Impedance
TEMPERATURE (˚C)
–50
SLEW RATE (V/µs)
16
17
18
25 75
LT1028/1128 • TPC30
15
14
–25 0
50 100 125
13
12
V
S
= ±15V

70
80
90
60
50
40
30
GAIN-BANDWIDTH PRODUCT (f
O
= 20kHz), (MHz)
GBW
FALL
RISE
TEMPERATURE (°C)
–50
0
SLEW RATE (V/µs)
1
3
4
5
0
50
100
9
LT1028/1128 • TPC33
2
–25 25
6
7
8
75 125
20

10
30
GAIN-BANDWIDTH PRODUCT (f
O
= 200kHz), (MHz)
FALL
RISE
GBW
OVER-COMPENSATION CAPACITOR (pF)
1
SLEW RATE (V/µs)
10
1 100 1000 10000
LT1028/1128 • TPC36
0.1
10
100
1k
10k
GAIN AT 20kHz
C
OC
FROM PIN 5 TO PIN 6
V
S
= ±15V
T
A
= 25°C
SLEW GBW
100
10
OVER-COMPENSATION CAPACITOR (pF)
1
SLEW RATE (V/µs)
10
1 100 1000 10000
LT1028/1128 • TPC35
0.1
10
100
10
100
1
1k
GAIN AT 200kHz
GBW
SLEW RATE
OVER-COMPENSATION CAPACITOR (pF)
1
10
1 100 1000 10000
LT1028/1128 • TPC35
0.1
10
100
10
100
1k
GBW
SLEW RATE
1
0V
A
V
= –1, R
S
= R
F
= 2k, C
F
= 30pF
2µs/DIV
LT1128
Small-Signal Transient Response
0.2µs/DIV
20mV/DIV
A
V
= –1, R
S
= R
F
= 2k
C
F
= 15pF, C
L
= 80pF
–50mV
50mV
5V/DIV
10V
–10V
0V
10V
–50mV
50mV
–10V
0.2µs/DIV
1µs/DIV
A
V
= –1, R
S
= R
F
= 2k, C
F
= 15pF
A
V
= +1, C
L
= 10pF
LT1028
Large-Signal Transient Response
LT1028
Small-Signal Transient Response