LT1028_15 Datasheet, PDF (9/28 Pages) Linear Technology – Ultralow Noise Precision High Speed Op Amps

LT1028/LT1128
Typical Performance Characteristics
LT1028
Large-Signal Transient Response
LT1028
Small-Signal Transient Response
10V
5V/DIV
–10V
50mV
20mV/DIV
–50mV
1µs/DIV
A_V = –1, R_S = R_F = 2k, C_F = 15pF
1028 G28
0.2µs/DIV
A_V = –1, R_S = R_F = 2k,
C_F = 15pF, C_L = 80pF
1028 G29
LT1128
Large-Signal Transient Response
LT1128
Small-Signal Transient Response
10V
0V
–10V
50mV
0V
–50mV
2µs/DIV
A_V = –1, R_S = R_F = 2k, C_F = 30pF
1028 G31
0.2µs/DIV
A_V = –1, C_L = 10pF
1028 G32
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)
1028 G34
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)
1028 G35
For more information www.linear.com/LT1028
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
1028 G30
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)
1028 G33
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)
1028 G36
1028fc
9