AD7829BRUZ-1REEL7 데이터 시트보기 (PDF) - Analog Devices

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AD7829BRUZ-1REEL7

3 V/5 V, 2 MSPS, 8-Bit, 8-Channel ADC

Analog Devices 

Track/Hold Acquisition Time

The time required for the output of the track/hold amplifier to

reach its final value, within ±1/2 LSB, after the point at which

the track/hold returns to track mode. This happens approxi-

mately 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 AD7829-1.

AD7829-1

It means that the user must wait for the duration of the

track/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’s 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.

Rev. 0 | Page 9 of 20

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