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| 型号： | ADR540BRT-R2 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/16页 |
| 文件大小： | 0K |
| 描述： | IC VREF SHUNT PREC 4.096V SOT23 |
| 标准包装： | 1 |
| 基准类型： | 旁路，精度 |
| 输出电压： | 4.096V |
| 容差： | ±0.2% |
| 温度系数： | 40ppm/°C |
| 通道数： | 1 |
| 电流 - 阴极： | 50µA |
| 电流 - 输出： | 15mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 标准包装 |
| 其它名称： | ADR540BRT-R2DKR |
ADR520/ADR525/ADR530/ADR540/ADR550
PARAMETER DEFINITIONS
TEMPERATURE COEFFICIENT
Temperature coefficient is defined as the change in output
voltage with respect to operating temperature changes and is
normalized by the output voltage at 25°C. This parameter is
expressed in ppm/°C and is determined by the following
equation:
THERMAL HYSTERESIS
Thermal hysteresis is defined as the change in output voltage
after the device is cycled through temperatures ranging from
+25°C to ?40°C, then to +85°C, and back to +25°C. The
following equation expresses a typical value from a sample of
parts put through such a cycle:
TCV O ? ?
?? = V
V OUT _ HYS [ppm] =
where:
ppm ? V OUT ( T 2 ) ? V OUT ( T 1 )
? ° C OUT ( 25 ° C) × ( T 2 ? T 1 )
× 10 6
(1)
V OUT _ HYS = V OUT ( 25 ° C) ? V OUT _ END
V OUT ( 25 ° C) ? V OUT _ END
V OUT ( 25 ° C)
× 10 6
(2)
V OUT (T 2 ) = V OUT at Temperature 2.
V OUT (T 1 ) = V OUT at Temperature 1.
V OUT (25°C) = V OUT at 25°C.
where:
V OUT ( 25°C ) = V OUT at 25°C.
V OUT_END = V OUT at 25°C after a temperature cycle from +25°C to
?40°C, then to +85°C, and back to +25°C.
Rev. E | Page 7 of 16
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