参数资料
型号: AD1580BRTZ-R2
厂商: Analog Devices Inc
文件页数: 10/12页
文件大小: 0K
描述: IC VREF SHUNT PREC 1.225V SOT23
标准包装: 1
基准类型: 旁路,精度
输出电压: 1.225V
容差: ±0.1%
温度系数: 50ppm/°C
通道数: 1
电流 - 阴极: 50µA
电流 - 输出: 10mA
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: AD1580BRTZ-R2DKR
AD1580
The AD1580 is ideal for creating the reference level to use with 12-bit
multiplying DACs, such as the AD7943, AD7945, and AD7948.
3.3V
In the single-supply bias mode (see Figure 26), the impedance
seen looking into the I OUT2 terminal changes with DAC code. If
the AD1580 drives I OUT2 and AGND directly, less than 0.2 LSBs
of additional linearity error results. The buffer amp eliminates
any linearity degradation that could result from variations in
the reference level.
V IN
V REF
V DD
DAC
AD7943/
AD7945/
AD7948
RBF
I OUT1
I OUT2
AGND
C1
A1
A1: OP295
AD822
OP2283
V OUT
DGND
3.3V
41.2k ?
A1
AD1580
SIGNAL GROUND
Figure 26. Single-Supply System
Rev. F | Page 10 of 12
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