收藏本站

Data Sheet
TERMINOLOGY
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550
Dropout Voltage (V DO )
Dropout voltage, sometimes referred to as supply voltage
headroom or supply output voltage differential, is defined as the
minimum voltage differential between the input and output such
that the output voltage is maintained to within 0.1% accuracy.
V DO = (V IN ? V OUT ) min |I L = constant
Long-Term Stability (ΔV OUT_LTD )
Long-term stability refers to the shift in the output voltage at 60°C
after 1000 hours of operation in a 60°C environment. The ambient
temperature is kept at 60°C to ensure that the temperature chamber
does not switch randomly between heating and cooling, which
can cause instability over the 1000 hour measurement. This is
also expressed as either a shift in voltage or a difference in ppm
? V OUT _ LTD =
Because the dropout voltage depends on the current passing
through the device, it is always specified for a given load current.
In series mode devices, the dropout voltage typically increases
proportionally to the load current (see Figure 6, Figure 21,
from the nominal output.
V OUT ( t 1 ) ? V OUT ( t 0 )
V OUT ( t 0 )
× 10 6 [ppm]
Figure 37, Figure 52, Figure 67, and Figure 82).
Temperature Coefficient (TCV OUT )
The temperature coefficient relates the change in the output
voltage to the change in the ambient temperature of the device, as
normalized by the output voltage at 25°C. This parameter is
determined by the box method, which is represented by the
following equation:
where:
V OUT (t 0 ) is the V OUT at 60°C at Time 0.
V OUT (t 1 ) is the V OUT at 60°C after 1000 hours of operation at 60°C.
Line Regulation
Line regulation refers to the change in output voltage in response
to a given change in input voltage and is expressed in percent
per volt, ppm per volt, or μV per volt change in input voltage.
TCV OUT =
max { V OUT ( T 1 , T 2 , T 3 )} ? min { V OUT ( T 1 , T 2 , T 3 )}
V OUT ( T 2 ) × ( T 3 ? T 1 )
× 10 6
This parameter accounts for the effects of self-heating.
Load Regulation
Load regulation refers to the change in output voltage in response
where:
TCV OUT is expressed in ppm/°C.
V OUT (T x ) is the output voltage at Temperature T x .
T 1 = ?40°C.
T 2 = +25°C.
T 3 = +125°C.
This three-point method ensures that TCV OUT accurately portrays
the maximum difference between any of the three temperatures
at which the output voltage of the part is measured.
The TCV OUT for the ADR4520/ADR4525/ADR4530/ADR4533/
ADR4540/ADR4550 is fully tested over three temperatures:
?40°C, +25°C, and +125°C.
Thermally Induced Output Voltage Hysteresis (ΔV OUT_HYS )
Thermally induced output voltage hysteresis represents the
change in the output voltage after the device is exposed to a
specified temperature cycle. This is expressed as either a shift in
voltage or a difference in ppm from the nominal output.
to a given change in load current and is expressed in μV per mA,
ppm per mA, or ohms of dc output resistance. This parameter
accounts for the effects of self-heating.
Solder Heat Resistance (SHR) Shift
SHR shift refers to the permanent shift in output voltage that is
induced by exposure to reflow soldering and is expressed in units
of ppm. This shift is caused by changes in the stress exhibited
on the die by the package materials when these materials are
exposed to high temperatures. This effect is more pronounced
in lead-free soldering processes due to higher reflow temperatures.
? V OUT _ HYS =
V OUT _ 25 ° C ? V OUT _ TC
V OUT _ 25 ° C
× 10 6 [ppm]
where:
V OUT_ 25°C is the output voltage at 25°C.
V OUT_TC is the output voltage after temperature cycling.
Rev. 0 | Page 29 of 32
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
A9BAA-0602F FLEX CABLE - AFF06A/AF06/AFE06T
MIC2545A-2BTS TR IC SW CURR LIMIT HI SIDE 14TSSOP
ADR4530ARZ IC VREF SERIES PREC 3V 8SOIC
ADR4540ARZ IC VREF SERIES PREC 4.096V 8SOIC
RB-2412S/H CONV DC/DC 1W 24VIN 12VOUT
ADR4533ARZ IC VREF SERIES PREC 3.3V 8SOIC
AD587JNZ IC VREF SERIES PREC 10V 8-PDIP
RB-2409S/H CONV DC/DC 1W 24VIN 09VOUT
相关代理商/技术参数
ADR4525ARZ_PROMO 制造商:Analog Devices 功能描述:IC V REF 15VIN 2.5V +/-0.0
ADR4525ARZ-R7 功能描述:IC VREF SERIES PREC 2.5V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 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
ADR4525BRZ 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:- 标准包装:1,000 系列:- 基准类型:旁路，可调节，精度 输出电压:2.495 V ~ 36 V 容差:±0.5% 温度系数:标准值 34ppm/°C 输入电压:2.495 V ~ 36 V 通道数:1 电流 - 阴极:1mA 电流 - 静态:- 电流 - 输出:100mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:TO-243AA 供应商设备封装:SOT-89-3 包装:带卷 (TR)
ADR4525BRZ_PROMO 制造商:Analog Devices 功能描述:IC V REF 15VIN 2.5V +/-0.0
ADR4525BRZ-R7 功能描述:IC VREF SERIES PREC 2.5V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR)
ADR4525WBRZ-R7 功能描述:2.5V ULTRA LOW NOISE VOLTAGE REF 制造商:analog devices inc. 系列:* 零件状态:在售 标准包装:1,000
ADR4530 制造商:AD 制造商全称:Analog Devices 功能描述:Ultralow Noise, High Accuracy
ADR4530ARZ 功能描述:IC VREF SERIES PREC 3V 8SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:1,000 系列:- 基准类型:旁路，可调节，精度 输出电压:2.495 V ~ 36 V 容差:±0.5% 温度系数:标准值 34ppm/°C 输入电压:2.495 V ~ 36 V 通道数:1 电流 - 阴极:1mA 电流 - 静态:- 电流 - 输出:100mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:TO-243AA 供应商设备封装:SOT-89-3 包装:带卷 (TR)