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: 15/19页
文件大小: 539K
代理商: ADC08060CIMT
Applications Information
(Continued)
V
should always be at least 1.0V more positive than V
RB
to minimize noise.
V
(pin 9) is the center of the reference ladder and should
be bypassed to a clean, quiet point in the analog ground
plane with a 0.1 μF capacitor. DO NOT allow this pin to float.
2.0 THE ANALOG INPUT
The analog input of theADC08060 is a switch followed by an
integrator. The input capacitance changes with the clock
level, appearing as 3 pF when the clock is low, and 4 pF
when the clock is high. Since a dynamic capacitance is more
difficult to drive than is a fixed capacitance, choose an
amplifier that can drive this type of load. The LMH6702 has
been found to be a good amplifier to drive the ADC08060.
Figure 4
shows an example of an input circuit using the
LMH6702. Any input amplifier should incorporate some gain
as operational amplifiers exhibit better phase margin and
transient response with gains above 2 or 3 than with unity
gain. If an overall gain of less than 3 is required, attenuate
the input and operate the amplifier at a higher gain, as
shown in
Figure 4
.
20006233
FIGURE 3. Driving the reference to force desired values requires driving with a low impedance source.
A
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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