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參數(shù)資料
| 型號(hào)： | MAX6029EUK21-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Ultra-Low-Power Precision Series Voltage Reference |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.048 V, PDSO5 |
| 封裝： | MO-178AA, SOT-23, 5 PIN |
| 文件頁數(shù)： | 13/15頁 |
| 文件大?。?/td> | 564K |
| 代理商： | MAX6029EUK21-T |
M
Ultra-Low-Power Precision Series
Voltage Reference
______________________________________________________________________________________
13
Applications Information
Input Bypassing
The MAX6029 does not require an input bypass capac-
itor. For improved transient performance, bypass the
input to ground with a 0.1μF ceramic capacitor. Place
the capacitor as close to IN as possible.
Load Capacitance
The MAX6029 does not require an output capacitor for
stability. The MAX6029 is stable driving capacitive
loads from 0 to 100pF and 0.1μF to 10μF when sourc-
ing current and from 0 to 0.4μF when sinking current. In
applications where the load or the supply can experi-
ence step changes, an output capacitor reduces the
amount of overshoot (undershoot) and improves the cir-
cuit
’
s transient response. Many applications do not
require an external capacitor, and the MAX6029 offers
a significant advantage in applications where board
space is critical.
Supply Current
The quiescent supply current of the series-mode
MAX6029 is very small, 5.25μA (max), and is very sta-
ble against changes in the supply voltage with only
1.5μA/V (max) variation with supply voltage. The
MAX6029 family draws load current from the input volt-
age source only when required, so supply current is not
wasted and efficiency is maximized at all input volt-
ages. This improved efficiency reduces power dissipa-
tion and extends battery life.
Output Thermal Hysteresis
Output thermal hysteresis is the change of the output
voltage at T
A
= +25
°
C before and after the device is
cycled over its entire operating temperature range.
Hysteresis is caused by differential package stress
appearing across the device.
Temperature Coefficient vs. Operating
Temperature Range for a 1LSB
Maximum Error
In a data converter application, the reference voltage of
the converter must stay within a certain limit to keep the
error in the data converter smaller than the resolution
limit through the operating temperature range. Figure 1
shows the maximum allowable reference voltage temper-
ature coefficient to keep the conversion error to less than
1 LSB, as a function of the operating temperature range
(T
MAX
- T
MIN
) with the converter resolution as a parame-
ter. The graph assumes the reference-voltage tempera-
ture coefficient as the only parameter affecting accuracy.
In reality, the absolute static accuracy of a data convert-
er is dependent on the combination of many parameters
such as integral nonlinearity, differential nonlinearity, off-
set error, gain error, as well as voltage reference
changes.
Turn-On Time
These devices turn on and settle to within 0.1% of their
final value in less than 1ms. The turn-on time increases
when heavily loaded and operating close to dropout.
Pin Description
PIN
1
2
NAME
IN
GND
FUNCTION
Positive Voltage Supply
Ground
3, 4
N.C.
No Connection. Leave unconnected or
connect to ground.
5
OUT
Reference Output
TEMPERATURE
COEFFICIENT
(ppm/
°
C)
1
10
100
16-BIT
14-BIT
12-BIT
10-BIT
8-BIT
0.01
0.1
10
100
1000
1
10,000
18-BIT
20-BIT
OPERATING TEMPERATURE RANGE (T
MAX
- T
MIN
) (
°
C)
Figure 1. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6029EUK25 | 制造商:Maxim Integrated Products 功能描述:ULTRA-LOW-POWER PRECISION SERIES VO - Cut Tape Product |
| MAX6029EUK25/GH9-T | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX6029EUK25+ | 制造商:Maxim Integrated Products 功能描述:V-REF PRECISION 2.5V 4MA 5PIN SOT-23 - Rail/Tube |
| MAX6029EUK25+T | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Ultra-Low-Power Voltage Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX6029EUK25-T | 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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