AD7450ABRM-REEL7(2004) データシートの表示（PDF） - Analog Devices

部品番号

コンポーネント説明

メーカー

AD7450ABRM-REEL7
(Rev.:2004)

Differential Input, 1 MSPS 10-Bit and 12-Bit ADCs in an 8-Lead SOT-23

Analog Devices 

Positive Gain Error

This is the deviation of the last code transition (011...110 to

011...111) from the ideal VIN+ – VIN– (i.e., +VREF − 1 LSB), after

the zero code error has been adjusted out.

Negative Gain Error

This is the deviation of the first code transition (100...000 to

100...001) from the ideal VIN+ − VIN– (i.e., –VREF + 1 LSB),

after the zero code error has been adjusted out.

Track-and-Hold Acquisition Time

The track-and-hold acquisition time is the minimum time

required for the track-and-hold amplifier to remain in track

mode for its output to reach and settle to within 0.5 LSB of the

applied input signal.

AD7440/AD7450A

Power Supply Rejection Ratio (PSRR)

The power supply rejection ratio is the ratio of the power in

the ADC output at full-scale frequency, f, to the power of a

100 mV p-p sine wave applied to the ADC VDD supply of

frequency fS. The frequency of this input varies from 1 kHz to

1 MHz.

PSRR (dB) = 10log(Pf/PfS)

Pf is the power at frequency f in the ADC output; Pfs is the

power at frequency fS in the ADC output.

Rev. B | Page 11 of 28

Share Link: