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参数资料
| 型号： | AD7873ARUZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 29/29页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT TOUCHSCREEN 16TSSOP |
| 标准包装： | 1,000 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1 TSC |
| 分辨率（位）： | 12 b |
| 评估套件： | 可供 |
| 数据接口： | 串行 |
| 数据速率/采样率 (SPS，BPS)： | 125k |
| 电压基准： | 外部，内部 |
| 电源电压： | 2.2 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
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AD7873
Data Sheet
Rev. F | Page 8 of 28
TERMINOLOGY
Integral Nonlinearity
Integral nonlinearity is the maximum deviation from a straight
line passing through the endpoints of the ADC transfer function.
The endpoints of the transfer function are zero scale, a point 1 LSB
below the first code transition, and full scale, a point 1 LSB
above the last code transition.
Differential Nonlinearity
Differential nonlinearity is the difference between the measured
and the ideal 1 LSB change between any two adjacent codes in
the ADC.
Offset Error
Offset error is the deviation of the first code transition (00…000)
to (00…001) from the ideal, that is, AGND + 1 LSB.
Gain Error
Gain error is the deviation of the last code transition (111…110)
to (111…111) from the ideal (that is, VREF – 1 LSB) after the
offset error is adjusted out.
Track-and-Hold Acquisition Time
The track-and-hold amplifier enters the acquisition phase on
the fifth falling edge of DCLK after the start bit has been
detected. Three DCLK cycles are allowed for the track-and-hold
acquisition time. The input signal is fully acquired to the 12-bit
level within this time even with the maximum specified DCLK
frequency. See the Analog Input section for more details.
On Resistance
On resistance is a measure of the ohmic resistance between the
drain and source of the switch drivers.
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| AD7873BRQZ-REEL | IC ADC 12BIT TOUCHSCREEN 16QSOP |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7873BCP | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER 制造商:Rochester Electronics LLC 功能描述:2.7V 12-BIT TOUCH SCREEN DIGITIZER I.C. - Bulk |
| AD7873BCP-REEL | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER |
| AD7873BCP-REEL7 | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER 制造商:Analog Devices 功能描述:2.7V 12-BIT TOUCH SCREEN DIGITIZER I.C. - Tape and Reel |
| AD7873BCPZ | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER |
| AD7873BRQ | 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER |
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