LT1128 Linear Technology Corporation, LT1128 Datasheet - Page 7
LT1128
Manufacturer Part Number
LT1128
Description
Ultra Low Noise Precision High Speed Op Amps
Manufacturer
Linear Technology Corporation
Datasheet
1.LT1128.pdf
(20 pages)
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TYPICAL PERFOR
0.001
0.01
–20
160
140
120
100
100
0.1
80
60
40
20
10
0
1
1
0.01
0.1
Voltage Gain vs Frequency
Gain Error vs Frequency
Closed-Loop Gain = 1000
Voltage Gain vs Supply Voltage
0
T
PRECISION
0.1 1
A
TYPICAL
= 25 C
OP AMP
GAIN ERROR = CLOSED-LOOP GAIN
5
SUPPLY VOLTAGE (V)
LT1128
10 100 1k 10k 100k 1M 10M 100M
R
FREQUENCY (Hz)
L
FREQUENCY (Hz)
1
= 2k
R
L
= 600
10
OPEN-LOOP GAIN
LT1028
LT1128
10
LT1028
LT1028/1128 • TPC19
LT1028/1128 • TPC22
LT`1028/1128 • TPC25
V
T
R
15
W
S
A
L
= 15V
= 25 C
= 2k
A
U
100
20
CE
–10
–10
100
C
70
60
50
40
30
20
10
70
60
50
40
30
20
10
10
0
0
1
10k
10k
HARA TERISTICS
0.1
LT1128
Gain Phase vs Frequency
Voltage Gain vs Load Resistance
LT1028
Gain, Phase vs Frequency
V
T
C
V
T
C
V
A
S
L
A
S
L
S
= 25 C
= 10pF
T
= 15V
= 25 C
= 10pF
= 15V
= 15V
A
= –55 C
100k
100k
LOAD RESISTANCE (k )
C
FREQUENCY (Hz)
FREQUENCY (Hz)
GAIN
GAIN
I
1M
LMAX
1M
PHASE
1
= 35mA AT –55 C
= 27mA AT 25 C
= 16mA AT 125 C
PHASE
T
A
10M
= 25 C
10M
T
LT1028/1128 • TPC26
LT1028/1128 • TPC20
LT1028/1128 • TPC23
A
= 125 C
100M
100M
10
70
60
50
40
30
20
10
0
–10
70
60
50
40
30
20
10
0
–10
80
70
60
50
40
30
20
10
30
25
20
15
10
80
70
60
40
30
20
10
50
0
5
0
10k
10
10
LT1028
Capacitance Load Handling
Maximum Undistorted Output
vs Frequency
LT1128
Capacitance Load Handling
R
R
S
S
A
R
A
V
A
A
R
R
S
V
V
V
A
–
+
= –100, R
LT1028/LT1128
S
S
–
+
30pF
A
V
= 200
LT1128
= –1, R
= –100
= –1, R
30pF
= 200
= 20
V
= –10
2k
CAPACITIVE LOAD (pF)
= –10
CAPACITIVE LOAD (pF)
2k
100k
100
C
100
C
FREQUENCY (Hz)
L
L
S
S
S
= 2k
= 2k
= 20
LT1028
1000
1000
1M
V
T
V
LT1028/1128 • TPC 24
LT1028/1128 • TPC21
S
A
O
LT1028/1128 • TPC27
= 25 C
V
T
= 15V
= 10mV
V
T
R
S
A
A
S
L
= 15V
= 25 C
= 15V
= 25 C
= 2k
P-P
10000
10000
7
10M