参数资料
型号: ADC08060CIMT
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: ADC
英文描述: 8-Bit, 20 MSPS to 60 MSPS, 1.3 mW/MSPS A/D Converter
中文描述: 1-CH 8-BIT RESISTANCE LADDER ADC, PARALLEL ACCESS, PDSO24
封装: PLASTIC, TSSOP-24
文件页数: 14/19页
文件大小: 539K
代理商: ADC08060CIMT
Applications Information
(Continued)
The reference bias circuit of
Figure 2
is very simple and the
performance is adequate for many applications. However,
circuit tolerances will lead to a wide reference voltage range.
Superior performance can generally be achieved by driving
the reference pins with a low impedance source.
The circuit of
Figure 3
will allow a more accurate setting of
the reference voltages. The lower amplifier must have bipo-
lar supplies as its output voltage must go negative to force
V
to any voltage below the V
of the PNP transistor. Of
course, the divider resistors at the amplifier input could be
changed to suit your reference voltage needs, or the divider
can be replaced with potentiometers for precise settings.
The bottom of the ladder (V
) may simply be returned to
ground if the minimum input signal excursion is 0V. Be sure
that the driving sources can source sufficient current into the
V
pin and sink enough current from the V
RB
pin to keep
these pins stable.
The LMC662 amplifier shown was chosen for its low offset
voltage and low cost.
20006232
FIGURE 2. Simple, low component count reference biasing. Because of the ladder and external resistor tolerances,
the reference voltage can vary too much for some applications.
A
www.national.com
14
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相关代理商/技术参数
参数描述
ADC08060CIMT/NOPB 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
ADC08060CIMT/NOPB 制造商:Texas Instruments 功能描述:A/D Converter (A-D) IC
ADC08060CIMTX 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
ADC08060CIMTX/NOPB 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
ADC08060EVAL 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit, 20 MSPS to 60 MSPS, 1.3 mW/MSPS A/D Converter with Internal Sample-and-Hold