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參數(shù)資料
| 型號： | LT1460S3 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Family of Micropower Series References in SOT-23 |
| 中文描述： | 家庭的微系列參考采用SOT - 23 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 287K |
| 代理商： | LT1460S3 |
6
LT1460-10
APPLICATIO
S I
FOR
ATIO
U
current step of 1mA or 100
μ
A for R
L
= 1k or R
L
= 10k.
Figure 2 shows the response of the reference with no load
capacitance.
The reference settles to 10mV (0.1%) in 0.4
μ
s for a 100
μ
A
pulse and to 0.1% in 0.8
μ
s with a 1mA step. When load
capacitance is greater than 0.01
μ
F, the reference begins to
ring due to the pole formed with the output impedance.
W
U
U
Figure 3 shows the response of the reference to a 1mA and
100
μ
A load with a 0.01
μ
F load capacitor.
Fast Turn-On
It is recommended to add a 0.1
μ
F or larger input capacitor
to the input pin of the LT1460-10. This helps stability with
large load currents and speeds up turn-on. The LT1460-10
can start in 10
μ
s, but it is important to limit the dv/dt of the
input. Under light load conditions and with a very fast
input, internal nodes overslew and this requires finite
recovery time. Figure 4 shows the result of no bypass
capacitance on the input and no output load. In this case
the supply dv/dt is 12.5V in 30ns which causes internal
overslew, and the output does not bias to 10V until 60
μ
s.
A 0.1
μ
F input capacitor guarantees the part always starts
quickly as shown in Figure 5.
Figure 3. C
L
= 0.01
μ
F
10
μ
s/DIV
1460-10 F03
2
μ
s/DIV
1460-10 F02
10V
9V
Figure 2. C
L
= 0
10V
9V
R
L
= 10k
R
L
= 1k
20
μ
s/DIV
1460-5 F04
Figure 5. C
IN
= 0.1
μ
F
12.5V
20
μ
s/DIV
1460-10 F04
Figure 4. C
IN
= 0
Figure 1. Response Time Test Circuit
V
OUT
V
OUT
V
GEN
R
L
= 10k
R
L
= 1k
V
GEN
V
OUT
V
OUT
V
IN
V
OUT
0V
0V
0V
12.5V
0V
V
IN
V
OUT
LT1460-10
R
L
V
OUT
V
GEN
1460-10 F01
C
IN
0.1
μ
F
10V
9V
C
L
V
IN
= 12.5V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1460EIS8-2.5 | Micropower Precision Series Reference |
| LT1460EIS8-5 | Micropower Precision Series Reference |
| LT1460KCS3-2.5 | Family of Micropower Series References in SOT-23 |
| LT1460KCS3-3 | Family of Micropower Series References in SOT-23 |
| LT1460KCS3-3.3 | Family of Micropower Series References in SOT-23 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1460S3-SOT-23 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Family of Micropower Series References in SOT-23 |
| LT1461 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Micropower Precision Low Dropout Series Voltage Reference Family |
| LT1461-2.5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Serial 12-Bit/14-Bit, 2.8Msps |
| LT1461-3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:12-Bit, 5Msps Serial Sampling ADC in TSOT |
| LT1461-3.3V | 制造商:LINER 制造商全稱:Linear Technology 功能描述:12-Bit, 5Msps Serial Sampling ADC in TSOT |
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