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| 型号： | AD589TH |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/8页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT 1.235V TO-51-2 |
| 标准包装： | 1 |
| 基准类型： | 分流器 |
| 输出电压： | 1.235V |
| 容差： | ±5mV |
| 温度系数： | 50ppm/°C |
| 通道数： | 1 |
| 电流 - 阴极： | 50µA |
| 电流 - 输出： | 5mA |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-51-2 金属罐 |
| 供应商设备封装： | TO-51-2 |
| 包装： | 散装 |
AD589
UNDERSTANDING THE SPECIFICATIONS
VOLTAGE VARIATION VERSUS TEMPERATURE
SOME CONFUSION EXISTS IN THE AREA OF DEfi NING AND SPECIFYING
REFERENCE VOLTAGE ERROR OVER TEMPERATURE. HISTORICALLY, REFERENCES
HAVE BEEN CHARACTERIZED USING A MAXIMUM DEVIATION PER DEGREE
CENTIGRADE, I.E., 10 PPM/°C. HOWEVER, BECAUSE OF NONLINEARITIES
IN TEMPERATURE CHARACTERISTICS, WHICH ORIGINATED IN STANDARD ZENER
REFERENCES (SUCH AS S TYPE CHARACTERISTICS), MOST MANUFACTURERS
HAVE BEGUN TO USE A MAXIMUM LIMIT ERROR BAND APPROACH TO SPECIFY
DEVICES. THIS TECHNIQUE INVOLVES MEASUREMENT OF THE OUTPUT AT
3, 5, OR MORE DIFFERENT TEMPERATURES TO GUARANTEE THAT THE OUTPUT
VOLTAGE WILL FALL WITHIN THE GIVEN ERROR BAND. THE TEMPERATURE
CHARACTERISTICS OF THE AD589 CONSISTENTLY FOLLOWS THE CURVE SHOWN
IN FIGURE 1. THREE-POINT MEASUREMENT GUARANTEES THE ERROR BAND
OVER THE SPECIfi ED TEMPERATURE RANGE. THE TEMPERATURE COEFfi CIENTS
SPECIfi ED IN THE SPECIfi CATIONS SECTION REPRESENT THE SLOPES OF THE
DIAGONALS OF THE ERROR BAND FROM 25°C TO T MIN AND 25°C TO T MAX .
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DYNAMIC PERFORMANCE
MANY LOW POWER INSTRUMENT MANUFACTURERS ARE BECOMING INCREAS-
INGLY CONCERNED WITH THE TURN-ON CHARACTERISTICS OF THE COMPONENTS
BEING USED IN THEIR SYSTEMS. FAST TURN-ON COMPONENTS OFTEN ENABLE
THE END USER TO KEEP POWER OFF WHEN NOT NEEDED AND YET RESPOND
QUICKLY WHEN THE POWER IS TURNED ON FOR OPERATION. FIGURE 3 DIS-
PLAYS THE TURN-ON CHARACTERISTICS OF THE AD589. THIS CHARACTERISTIC
IS GENERATED FROM COLD-START OPERATION AND REPRESENTS THE TRUE TURN-
ON WAVEFORM AFTER AN EXTENDED PERIOD WITH THE SUPPLIES OFF. THE
fi GURE SHOWS BOTH THE COARSE AND fi NE TRANSIENT CHARACTERISTICS OF
THE DEVICE; THE TOTAL SETTLING TIME TO WITHIN ±1 MV IS ABOUT 25 S,
AND THERE IS NO LONG THERMAL TAIL APPEARING AFTER THAT POINT.
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FIGURE 3. OUTPUT SETTLING CHARACTERISTICS
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FIGURE 1. TYPICAL AD589 TEMPERATURE CHARACTERISTICS
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FIGURE 4. SCHEMATIC DIAGRAM
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FIGURE 2. NOISE SPECTRAL DENSITY
–4–
REV. C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD589TH/883B | 制造商:Analog Devices 功能描述:V-Ref Precision 1.235V 5mA 2-Pin TO-51 Tube 制造商:Analog Devices 功能描述:V-REF PRECISION 1.235V 5MA 2PIN TO-51 - Rail/Tube 制造商:Analog Devices 功能描述:1.2V REFERENCE IC 制造商:Rochester Electronics LLC 功能描述:IC - 1.2V REFERENCE IC - Bulk 制造商:Analog Devices 功能描述:IC VOLT REF 1.2V 制造商:Analog Devices Inc. 功能描述:Voltage & Current References 2-Terminal IC 1.2V REF 制造商:Analog Devices Inc. 功能描述:Voltage & Current References IC - 1.2V REFERENCE IC |
| AD589TH883B | 制造商:AD 制造商全称:Analog Devices 功能描述:2-Terminal IC 1.2 V Reference |
| AD589U | 制造商:AD 制造商全称:Analog Devices 功能描述:Two-Terminal IC 1.2 V Reference |
| AD589UH | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS 5 us 8-Bit ADC with Track/Hold |
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