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參數(shù)資料
| 型號： | LT1128M |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Ultra Low Noise Precision High Speed Op Amps |
| 中文描述： | 超低噪聲精密高速運(yùn)算放大器 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 439K |
| 代理商： | LT1128M |
14
LT1028/LT1128
U
S
A
O
PPLICATI
U
U
If C
F
is only used to cut noise bandwidth, a similar effect
can be achieved using the over-compensation terminal.
The Gain, Phase plot also shows that phase margin is
about 45
°
at gain of 10 (20dB). The following configura-
tion has a high (
≈
70%) overshoot without the 10pF
capacitor because of additional phase shift caused by the
feedback resistor – input capacitance pole. The presence
of the 10pF capacitor cancels this pole and reduces
overshoot to 5%.
Over-Compensation
The LT1028/LT1128 are equipped with a frequency over-
compensation terminal (pin 5). A capacitor connected
between pin 5 and the output will reduce noise bandwidth.
Details are shown on the Slew Rate, Gain-Bandwidth
Product vs Over-Compensation Capacitor plot. An addi-
tional benefit is increased capacitive load handling capa-
bility.
1028/1128 AI11
10pF
10k
50
1.1k
–
+
LT1028
U
A
O
PPLICATI
TYPICAL
Strain Gauge Signal Conditioner with Bridge Excitation
Low Noise Voltage Regulator
1028/1128 TA05
1
μ
F
REFERENCE
OUTPUT
–
+
LT1128
30.1k*
49.9
*
15V
330
10k
ZERO
TRIM
5.0V
301k*
LT1021-5
0V TO 10V
OUTPUT
3
2
7
6
4
350
BRIDGE
–15V
15V
15V
LT1028
+
–
3
2
7
6
4
–15V
LT1028
+
–
3
2
7
6
4
–15V
5k
GAIN
TRIM
330
*RN60C FILM RESISTORS
THE LT1028’s NOISE CONTRIBUTION IS NEGLIGIBLE
COMPARED TO THE BRIDGE NOISE.
1028/1128 TA04
10
2k
20V OUTPUT
–
+
LT1028
2.3k
PROVIDES PRE-REG
AND CURRENT
LIMITING
10
+
28V
121
2k
330
1000pF
1k
28V
LT317A
LT1021-10
2N6387
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1028CJ8 | Ultra Low Noise Precision High Speed Op Amps |
| LT1128CJ8 | Ultra Low Noise Precision High Speed Op Amps |
| LT1030CN | Hex Noninverting Drivers 14-SO 0 to 70 |
| LT1030 | Hex Noninverting Drivers 14-SOIC 0 to 70 |
| LT1030CJ | Hex Noninverting Drivers 14-PDIP 0 to 70 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1128MJ8 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Ultra Low Noise Precision High Speed Op Amps |
| LT1129 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:500mA, Low Voltage, Very Low Dropout Linear Regulator |
| LT1129_1 | 制造商:LINEAR 制造商全稱:LINEAR 功能描述:Micropower Low Dropout Regulators with Shutdown |
| LT1129-3.3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower Low Dropout Regulators with Shutdown |
| LT1129-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower Low Dropout Regulators with Shutdown |
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