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參數(shù)資料
| 型號(hào)： | X60008D-50 |
| 英文描述： | Precision 5.0V FGA Voltage Reference(5.0V FGA 精密電壓基準(zhǔn)) |
| 中文描述： | FGA中精密5.0V電壓基準(zhǔn)（5.0V FGA中精密電壓基準(zhǔn)） |
| 文件頁(yè)數(shù)： | 10/14頁(yè) |
| 文件大?。?/td> | 524K |
| 代理商： | X60008D-50 |
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X60008C-50, X60008D-50
10 of 14
REV 1.11 7/31/03
www.xicor.com
decade bandpass filter made of a 1 pole high-pass
filter with a corner frequency at 1/10 of the center
frequency and 1-pole low-pass filter with a corner
frequency at 10 times the center frequency. Figure 2
also shows the noise in the 10KHz to 1MHz band can
be reduced to about 50μVp-p using a .001μF capacitor
on the output. Noise in the 1KHz to 100KHz band can
be further reduced using a 0.1μF capacitor on the
output, but noise in the 1Hz to 100Hz band increases
due to instability of the very low power amplifier with a
0.1μF capacitance load. For load capacitances above
.001μF the noise reduction network shown in fig. 3 is
recommended. This network reduces noise sig-
nificantly over the full bandwidth. As shown in fig. 2,
noise is reduced to less than 40μVp-p from 1Hz to
1MHz using this network with a .01μF capacitor and a
2Kohm resistor in series with a 10μF capacitor.
Figure 2.
Figure 3.
Turn-On Time
The X60008 devices have ultra-low supply current and
thus the time to bias up internal circuitry to final values
will be longer than with higher power references. Nor-
mal turn-on time is typically 7ms. This is shown in the
graph, Figure 4. Since devices can vary in supply cur-
rent down to 300nA, turn-on time can last up to about
12ms. Care should be taken in system design to
include this delay before measurements or conversions
are started.
Figure 4.
Temperature Coefficient
The limits stated for temperature coefficient (tempco)
are governed by the method of measurement. The
overwhelming standard for specifying the temperature
drift of a reference is to measure the reference voltage
at two temperatures, take the total variation, (V
HIGH
–
V
LOW
), and divide by the temperature extremes of
measurement (T
HIGH
– T
LOW
). The result is divided by
the nominal reference voltage (at T=25°C) and multi-
plied by 10
6
to yield ppm/°C. This is the “Box” method
for temperature coefficient which allows comparison of
devices but can mislead a designer concerned about
specific ranges of temperature (i.e., 35°C to 65°C for a
power supply design). The designer may infer the
tempco to be a well-behaved flat line slope, similar to
that shown in Figure 5. The slope of the Vout vs. tem-
perature curve at points in-between the extremes can
actually be much higher than the tempco stated in the
specifications due to multiple inflections in the temper-
ature drift curve. Most notably, bandgap devices may
have some type of “s-curve” which will have slopes that
exceed the average specified tempco by 2x or 3x.
CL = 0
CL = .001μF
CL = .1μF
CL = .01μF & 10μF + 2kohm
400
350
300
250
200
150
100
50
0
1
10
100
1000
10000
100000
X60008-50 NOISE REDUCTION
N
V
IN
= 6.5V
V
IN
V
O
GND
X60008-50
.01μF
10μF
2K
.1μF
7
6
5
4
3
2
1
0
-1
1
3
5
TIME (mSec)
7
9
11
13
15
X60008-50 TURN-ON TIME (25°C)
V
I
IN
= 730nA
I
IN
= 500nA
I
IN
= 320nA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X60008E-50 | Precision 5.0V FGA Voltage Reference(5.0V FGA 精密電壓基準(zhǔn)) |
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| X68C64 SLIC | EE Micro-Peripheral(多重地址/數(shù)據(jù)總線，高速CMOS,微控制器外圍芯片) |
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| X60008DIS8-25 | 功能描述:IC VREF SERIES PREC 2.5V 8-SO RoHS:否 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:FGA™ 標(biāo)準(zhǔn)包裝:1 系列:- 基準(zhǔn)類型:串聯(lián)，精度 輸出電壓:4.5V 容差:±800µV 溫度系數(shù):1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數(shù):1 電流 - 陰極:- 電流 - 靜態(tài):7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應(yīng)商設(shè)備封裝:20-CLCC 包裝:管件 |
| X60008DIS8-25T1 | 功能描述:IC VREF SERIES PREC 2.5V 8-SO RoHS:否 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:FGA™ 標(biāo)準(zhǔn)包裝:1 系列:- 基準(zhǔn)類型:串聯(lián)，精度 輸出電壓:4.5V 容差:±800µV 溫度系數(shù):1ppm/°C 輸入電壓:13.5 V ~ 22 V 通道數(shù):1 電流 - 陰極:- 電流 - 靜態(tài):7mA 電流 - 輸出:10mA 工作溫度:-55°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:20-LCC 供應(yīng)商設(shè)備封裝:20-CLCC 包裝:管件 |
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| X60008DIS8-41T1 | 功能描述:IC VREF SERIES PREC 4.096V 8-SO RoHS:否 類別:集成電路 (IC) >> PMIC - 電壓基準(zhǔn) 系列:FGA™ 標(biāo)準(zhǔn)包裝:3,000 系列:- 基準(zhǔn)類型:旁路，精度 輸出電壓:5V 容差:±0.5% 溫度系數(shù):100ppm/°C 輸入電壓:- 通道數(shù):1 電流 - 陰極:80µA 電流 - 靜態(tài):- 電流 - 輸出:15mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:TO-236-3，SC-59，SOT-23-3 供應(yīng)商設(shè)備封裝:SOT-23-3 包裝:帶卷 (TR) 其它名稱:LM4040CIM3-5.0MLTRLM4040CIM3-5.0MLTR-ND |
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