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參數(shù)資料
| 型號(hào)： | MAX874ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Replaced by SN54ABT623A : Octal Bus Transceivers With 3-State Outputs 20-CDIP -55 to 125 |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 4.096 V, PDSO8 |
| 封裝： | 0.150 INCH, MS-012AA, SOP-8 |
| 文件頁(yè)數(shù)： | 7/8頁(yè) |
| 文件大?。?/td> | 112K |
| 代理商： | MAX874ESA |
Applic ations Information
T rimming the Output V oltage
The MAX872/MAX874’s output voltage is trimmed for
0.2% tolerance at +25°C. If additional V
OUT
trimming is
desired, connect a potentiometer to TRIM, as shown in
Figures 1a and 1b. Adjusting V
OUT
away from its facto-
ry-trimmed voltage typically changes the output voltage
tempco by 7ppm/°C per 100mV.
Reduc ing Input Ripple with an Input Filter
The Power-Supply Rejection Ratio vs. Frequency graph
in the Typical Operating Characteristics shows ripple
rejection between 10Hz and 2kHz. As input RC filter
with a pole less than 10Hz, as shown in Figure 2, fur-
ther attenuates input ripple with this band. The voltage
drop across the input resistor (due to supply and load
current) slightly increases the dropout voltage. The
increase is given by [(I
LOAD
+ I
SUPPLY
)
R].
Choosing the Output and
Compensation Capac itors
Connecting a capacitor between Void and GND
reduces load transients. If the load exceeds 300μA,
connect a minimum of 1000pF from V
OUT
to GND. The
type of capacitor is not critical. If the total load capaci-
tance from V
OUT
to GND (C
LOAD
= output capacitor +
other capacitive load) is larger than 1000pF, connect a
compensation capacitor with a value of C
LOAD
/100
between COMP and V
OUT
.
M
10μA, Low-Dropout,
Prec ision Voltage Referenc es
_______________________________________________________________________________________
7
Pin Desc ription
Internal Connection. Make no connection
to this pin
I.C.
1, 7
PIN
FUNCTION
NAME
Input Voltage
V
IN
2
Ground
GND
4
Temperature-Proportional Output
Voltage. Generates an output voltage
proportional to junction temperature.
TEMP
3
Output Voltage Trim. Connect to the
center of a voltage divider for output
trimming. Otherwise make no
connection.
TRIM
5
Compensation Input. Connect
C
LOAD
/100 capacitor from V
OUT
to
COMP to provide capacitive load
compensation.
COMP
8
Reference Output
V
OUT
6
GND
1M
1.5M
TRIM RANGE: -35mV/+80mV
V
OUT
V
IN
TRIM
MAX872
3V
Figure 1a. Adjusting V
OUT
with the TRIM Input on the MAX872
GND
2M
1M
4M
TRIM RANGE: -200mV/+300mV
V
OUT
V
IN
TRIM
MAX874
5V
Figure 1b. Adjusting V
OUT
with the TRIM Input on the MAX874
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX874ESA+ | 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(lèi)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 |
| MAX874ESA+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(lèi)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 |
| MAX874ESA-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(lèi)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 |
| MAX8751ETJ | 功能描述:顯示驅(qū)動(dòng)器和控制器 Fixed-f Full-Bridge CCFL Controller RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX8751ETJ+ | 功能描述:顯示驅(qū)動(dòng)器和控制器 Fixed-f Full-Bridge CCFL Controller RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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