(1111 . . . 111) " />
參數(shù)資料
型號: AD7822BR-REEL
廠商: Analog Devices Inc
文件頁數(shù): 28/28頁
文件大小: 0K
描述: IC ADC 8BIT 1CH 2MSPS 20-SOIC
標準包裝: 1,000
位數(shù): 8
采樣率(每秒): 2M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 36mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 20-SOIC W
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個單端,單極
AD7822/AD7825/AD7829
Rev. C | Page 9 of 28
Gain Error
The deviation of the last code transition (1111 . . . 110) to
(1111 . . . 111) from the ideal, that is, VREF 1 LSB, after the
offset error has been adjusted out.
Gain Error Match
The difference in gain error between any two channels.
Track-and-Hold Acquisition Time
The time required for the output of the track-and-hold amplifier to
reach its final value, within ±1/2 LSB, after the point at which the
track-and-hold returns to track mode. This happens approximately
120 ns after the falling edge of CONVST.
It also applies to situations where a change in the selected input
channel takes place or where there is a step input change on the
input voltage applied to the selected VIN input of the AD7822/
AD7825/AD7829. It means that the user must wait for the
duration of the track-and-hold acquisition time after a channel
change/step input change to VIN before starting another
conversion, to ensure that the part operates to specification.
PSR (Power Supply Rejection)
Variations in power supply affect the full-scale transition but
not the converter linearity. Power supply rejection is the
maximum change in the full-scale transition point due to a
change in power supply voltage from the nominal value.
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