参数资料
型号: ADC081S101CISDX
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: ADC
英文描述: 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23
中文描述: 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO6
封装: LLP-6
文件页数: 10/13页
文件大小: 621K
代理商: ADC081S101CISDX
Applications Information
(Continued)
3.0 ADC081S051 TRANSFER FUNCTION
The output format of the ADC081S051 is straight binary. Code transitions occur midway between successive integer LSB values.
The LSB width for theADC081S051 is V
A
/256. The ideal transfer characteristic is shown in Figure 5. 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 ADC081S051 is shown in Figure
6. 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 ADC081S051. Because the reference for the
ADC081S051 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 ADC081S051 supply pin. Because of the
ADC081S051’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.
20145511
FIGURE 5. Ideal Transfer Characteristic
20145513
FIGURE 6. Typical Application Circuit
A
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相关代理商/技术参数
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ADC081S101CISDX/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
ADC081S101EVAL 功能描述:模数转换器 - ADC ADC081S101 EVAL BOARD 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
ADC0820 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:CMOS High Speed 8-Bit A/D Converter with Track/Hold Function
ADC0820 WAF 制造商:Texas Instruments 功能描述:
ADC08200 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit, 20 Msps to 200 Msps, Low Power A/D Converter with Internal Sample-and-Hold