LT1028_01 Datasheet, PDF (8/20 Pages) Linear Technology – Ultralow Noise Precision High Speed Op Amps

LT1028/LT1128
TYPICAL PERFOR A CE CHARACTERISTICS
LT1028
Large-Signal Transient Response
LT1028
Small-Signal Transient Response
50mV
10V
–10V
1µs/DIV
A_V = –1, R_S = R_F = 2k, C_F = 15pF
–50mV
0.2µs/DIV
A_V = –1, R_S = R_F = 2k
C_F = 15pF, C_L = 80pF
LT1128
Large-Signal Transient Response
LT1128
Small-Signal Transient Response
10V
0V
–10V
2µs/DIV
A_V = –1, R_S = R_F = 2k, C_F = 30pF
50mV
0V
–50mV
0.2µs/DIV
A_V = 1, C_L = 10pF
Closed-Loop Output Impedance
100
I_O = 1mA
V_S = ±15V
10 ^TA ^{= 25°C}
LT1128
LT1028
A_V = 1000
1
0.1
0.01
0.001
10
LT1128
A_V = 5
LT1028
100
1k
10k 100k 1M
FREQUENCY (Hz)
LT1028/1128 • TPC34
LT1128
Slew Rate, Gain-Bandwidth Product
vs Over-Compensation Capacitor
100
1k
10
GBW
100
SLEW RATE
1
10
0.1
1
1
10
100
1000 10000
OVER-COMPENSATION CAPACITOR (pF)
LT1028/1128 • TPC35
LT1028
Slew Rate, Gain-Bandwidth
Product Over Temperature
18
90
V_S = ±15V
17
80
GBW
16
FALL
70
15
RISE
60
14
50
13
40
12
–50 –25
0 25 50 75
TEMPERATURE (˚C)
30
100 125
LT1028/1128 • TPC30
LT1128
Slew Rate, Gain-Bandwidth
Product Over Temperature
9
FALL
8
7
RISE
6
30
GBW
5
4
20
3
2
10
1
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LT1028/1128 • TPC33
LT1028
Slew Rate, Gain-Bandwidth Product
vs Over-Compensation Capacitor
100
10k
SLEW
GBW
10
1k
1
100
C_OC FROM PIN 5 TO PIN 6
V_S = ±15V
T_A = 25°C
0.1
1
10
100
1000
10
10000
OVER-COMPENSATION CAPACITOR (pF)
LT1028/1128 • TPC36
8