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| 型号： | ADR291FRZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 2.5V 8-SOIC |
| 标准包装： | 2,500 |
| 系列： | XFET® |
| 基准类型： | 串联，精度 |
| 输出电压： | 2.5V |
| 容差： | ±0.12% |
| 温度系数： | 20ppm/°C |
| 输入电压： | 2.8 V ~ 15 V |
| 通道数： | 1 |
| 电流 - 静态： | 15µA |
| 电流 - 输出： | 5mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
ADR291/ADR292
TERMINOLOGY
Line Regulation
Line regulation refers to the change in output voltage due to a
TCV O [ ppm/ ° C ] =
V O ( T 2 ) ? V O ( T 1 )
V O ( 25 ° C ) × ( T 2 ? T 1 )
× 10 6
specified change in input voltage. It includes the effects of self-
heating. Line regulation is expressed as percent-per-volt, parts-
per-million-per-volt, or microvolts-per-volt change in input
voltage.
Load Regulation
The change in output voltage is due to a specified change in
load current and includes the effects of self-heating. Load
regulation is expressed in microvolts-per-milliampere, parts-
per-million-per-milliampere, or ohms of dc output resistance.
Long-Term Stability
Long-term stability refers to the typical shift of output voltage at
25°C on a sample of parts subjected to a test of 1000 hours at
125°C.
where:
V OUT (25°C) = V OUT at 25°C.
V OUT ( T 1 ) = V OUT at Temperature 1.
V OUT ( T 2 ) = V OUT at Temperature 2.
NC = no connect.
There are internal connections at NC pins that are reserved for
manufacturing purposes. Users should not connect anything at
the NC pins.
Thermal Hysteresis
Thermal hysteresis is defined as the change of output voltage
after the device is cycled through temperatures from +25°C to
?40°C, then to +85°C, and back to +25°C. This is a typical value
from a sample of parts put through such a cycle.
V OUT ( t 0 ) ? V OUT ( t 1 )
V OUT ( t 0 )
V ΟUT ? HYS [ppm] =
Δ V OUT = V OUT ( t 0 ) ? V OUT ( t 1 )
Δ V OUT [ ppm ] =
where:
× 10 6
V OUT ? HYS = V OUT ( 25 ° C) ? V OUT_TC
V OUT ( 25 ° C ) ? V OUT_TC
V OUT ( 25 ° C)
× 10 6
V OUT ( t 0 ) = V OUT at 25°C at Time 0.
V OUT ( t 1 ) = V OUT at 25°C after 1000 hours of operation at 125°C.
Temperature Coefficient
Temperature coefficient is the change of output voltage over
where:
V OUT (25°C) = V OUT at 25°C.
V OUT _ TC = V OUT at 25°C after temperature cycle from +25°C to
?40°C, then to +85°C, and back to +25°C.
the operating temperature change, normalized by the output
voltage at 25°C, expressed in ppm/°C. The equation follows:
Rev. F | Page 12 of 20
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相关代理商/技术参数 |
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|---|---|
| ADR291FRZ-REEL7 | 功能描述:IC VREF SERIES PREC 2.5V 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:XFET® 产品培训模块:Voltage Reference Basics 标准包装:100 系列:- 基准类型:旁路，精度 输出电压:4.096V 容差:±0.075% 温度系数:50ppm/°C 输入电压:- 通道数:1 电流 - 阴极:1µA 电流 - 静态:- 电流 - 输出:10mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:管件 |
| ADR291GBC | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Noise Micropower Precision Voltage References |
| ADR291GR | 制造商:Analog Devices 功能描述:V-Ref Precision 2.5V 5mA 8-Pin SOIC N Tube 制造商:Rochester Electronics LLC 功能描述:LOW NOISE MICROPWR PRECISION VOLT. REF. - Bulk 制造商:Analog Devices 功能描述:IC VOLT REF |
| ADR291GR-REEL | 制造商:Analog Devices 功能描述:V-Ref Precision 2.5V 5mA 8-Pin SOIC N T/R |
| ADR291GR-REEL7 | 制造商:Analog Devices 功能描述:V-Ref Precision 2.5V 5mA 8-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:LOW NOISE MICROPWR PRECISION VOLT. REF. - Tape and Reel |
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