参数资料
型号: AD7864BSZ-1REEL
厂商: Analog Devices Inc
文件页数: 4/28页
文件大小: 0K
描述: IC ADC 12BIT DUAL 4CHAN 44-MQFP
标准包装: 800
位数: 12
采样率(每秒): 520k
数据接口: 并联
转换器数目: 1
功率耗散(最大): 120mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 44-QFP
供应商设备封装: 44-MQFP(10x10)
包装: 带卷 (TR)
输入数目和类型: 4 个差分,双极
AD7864
Rev. D | Page 12 of 28
nominal source impedance for this output. The tolerance on the
internal reference is ±10 mV at 25°C with a typical temperature
coefficient of 25 ppm/°C and a maximum error overtemperature
of ±20 mV.
If the application requires a reference with a tighter tolerance or
the AD7864 needs to be used with a system reference, the user
has the option of connecting an external reference to this VREF
pin. The external reference effectively overdrives the internal
reference and thus provides the reference source for the ADC.
The reference input is buffered before being applied to the ADC
with the maximum input current of ±100 μA. Suitable reference
sources for the AD7864 include the AD680, AD780, REF192,
and REF43 precision 2.5 V references.
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