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參數(shù)資料
| 型號： | MAX6241BCPA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Low-Noise, Precision, +2.5V/+4.096V/+5V Voltage References |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 4.096 V, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001AB, DIP-8 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 181K |
| 代理商： | MAX6241BCPA |
M
Low-Noise, Prec ision, +2.5V /+4.096V /+5V
Voltage Referenc es
_______________________________________________________________________________________
9
Detailed Desc ription
T emperature S tability
The MAX6225/MAX6241/MAX6250 are highly stable,
low-noise voltage references that use a low-power tem-
perature-compensation scheme to achieve laboratory-
standard temperature stability. This produces a nearly
flat temperature curve, yet does not require the power
associated with heated references.
The output voltage can be trimmed a minimum of 0.6%
by connecting a 10k
potentiometer between OUT and
GND, and connecting its tap to the TRIM pin, as shown
in Figure 1. The external trimming does not affect tem-
perature stability.
Noise Reduc tion
To augment wideband noise reduction, add a 1μF
capacitor to the NR pin (Figure 2). Larger values do not
improve noise appreciably (
see Typical Operating
Characteristics).
Noise in the power-supply input can affect output
noise, but can be reduced by adding an optional
bypass capacitor to the IN pin and GND.
Bypassing
The MAX6225/MAX6241/MAX6250 are stable with
capacitive load values from 0μF to 100μF, for all values
of load current. Adding an output bypass capacitor can
help reduce noise and output glitching caused by load
transients.
Applic ations Information
Negative Regulator
Figure 3 shows how both a +5V and -5V precision ref-
erence can be obtained from a single unregulated +5V
supply. A MAX681 generates approximately ±9V to
operate the MAX6250 reference and MAX432 inverting
amplifier. The +5V is inverted by the MAX432 chopper-
stabilized amplifier. Resistor R1 is optional, and may be
used to trim the ±5V references. R2 and R4 should be
matched, both in absolute resistance and temperature
coefficient. R3 is optional, and is adjusted to set the -5V
reference.
_____________________Pin Desc ription
NAME
FUNCTION
1, 7, 8
I.C.
Internally Connected.
Do not use
.
2
IN
Positive Power-Supply Input
PIN
4
GND
Ground
3
NR
Noise Reduction. Optional capacitor
connection for wideband noise
reduction. Leave open if not used
(Figure 2).
6
OUT
Voltage Reference Output
5
TRIM
External Trim Input. Allows ±1%
output adjustment (Figure 1).
Leave open if not used.
MAX6225
MAX6241
MAX6250
IN
8V TO36V INPUT
REFERENCE OUT
OUT
TRIM
10k
NR
GND
MAX6225
MAX6241
MAX6250
IN
8V TO36V INPUT
REFERENCE OUT
OUT
TRIM
NR
*OPTIONAL
*
1
μ
F
GND
Figure 1. Output Voltage Adjustment
Figure 2. Noise-Reduction Capacitor
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| MAX6241BCPA+ | 功能描述:基準電壓& 基準電流 2.5V/+4.096V/5V Voltage Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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 |
| MAX6241BCSA | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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 |
| MAX6241BCSA+ | 功能描述:基準電壓& 基準電流 2.5V/+4.096V/5V Voltage Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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 |
| MAX6241BCSA+T | 功能描述:基準電壓& 基準電流 2.5V/+4.096V/5V Voltage Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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 |
| MAX6241BCSA-T | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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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