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参数资料
| 型号： | ADC082S101 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | 2 Channel, 1 MSPS 12-Bit A/D Converter |
| 中文描述： | 2通道，1 MSPS的12位A / D转换器 |
| 文件页数： | 17/19页 |
| 文件大小： | 939K |
| 代理商： | ADC082S101 |
Applications Information
(Continued)
3.0 ADC082S021 TRANSFER FUNCTION
The output format of the ADC082S021 is straight binary. Code transitions occur midway between successive integer LSB values.
The LSB width for theADC082S021 is V
A
/256. The ideal transfer characteristic is shown in
Figure 3
. The transition from an output
code of 0000 0000 to a code of 0000 0001 is at 1/2 LSB, or a voltage of V
A
/512. Other code transitions occur at steps of one LSB.
4.0 TYPICAL APPLICATION CIRCUIT
A typical application of the ADC082S021 is shown in
Figure
4
. Power is provided in this example by the National Semi-
conductor LP2950 low-dropout voltage regulator, available in
a variety of fixed and adjustable output voltages. The power
supply pin is bypassed with a capacitor network located
close to the ADC082S021. Because the reference for the
ADC082S021 is the supply voltage, any noise on the supply
will degrade device noise performance. To keep noise off the
supply, use a dedicated linear regulator for this device, or
provide sufficient decoupling from other circuitry to keep
noise off the ADC082S021 supply pin. Because of the
ADC082S021’s low power requirements, it is also possible to
use a precision reference as a power supply to maximize
performance. The four-wire interface is also shown con-
nected to a microprocessor or DSP.
20124811
FIGURE 3. Ideal Transfer Characteristic
20124813
FIGURE 4. Typical Application Circuit
A
www.national.com
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| ADC082S101EVAL | 2 Channel, 1 MSPS, 8-Bit A/D Converter |
| ADC0833 | 8-Bit Serial I/O A/D Converter with 4-Channel Multiplexer |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADC082S101CIMM | 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 |
| ADC082S101CIMM/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 |
| ADC082S101CIMMX | 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 |
| ADC082S101CIMMX/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 |
| ADC082S101EVAL | 功能描述:数据转换 IC 开发工具 ADC082S101 EVAL BOARD RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
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