AD7821KR

更新时间： 2024-02-16 04:35:00

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	251K
描述
LC2MOS High Speed, mP-Compatible 8-Bit ADC with Track/Hold Function

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AD7821KR 技术参数

AD7821

SIMULTANEO US SAMP LING A/D CO NVERTERS

T he AD7821’s inherent track-and-hold and well-defined sam-

pling instant makes it useful, in such applications as sonar,

where a number of input channels are required to be sampled

simultaneously. Figure 22 shows a circuit for such an applica-

tion.

O UTLINE D IMENSIO NS

D imensions shown in inches and (mm).

20-P in P lastic D IP (N-20)

20-P in Cer dip (Q -20)

20-Ter m inal P lastic Leaded Chip Car r ier

(P -20A)

Figure 22. Sim ultaneous Sam pling A/D Converters

T he actual sampling instant, which is the instant at which V_INis

measured, occurs approximately 50 ns after the falling edge of

WR or RD in the WR-RD or RD modes, respectively, due to in-

ternal logic delays. However, the internal logic delay and, there-

fore, the sampling instant can vary from device to device, but is

typically within ±5 ns. T his means that a maximum common in-

put sine wave of ±2.5 V at 32 kHz, applied to any number of

AD7821s in the circuit of Figure 22, will yield a maximum dif-

ference between the converter outputs of typically ±1/4 LSB.

20-Ter m inal Leadless Cer am ic Chip Car r ier

(E-20A)

–12–

REV. A

1...9 10 1112

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型号	品牌	替代类型	描述	数据表
AD7821KRZ-REEL	ADI	完全替代	暂无描述

型号	品牌	描述	获取价格	数据表
AD7821KRZ-REEL	ADI	暂无描述	获取价格
AD7821TE	ADI	LC2MOS High Speed, mP-Compatible 8-Bit ADC with Track/Hold Function	获取价格
AD7821TE/883B	ETC	Analog-to-Digital Converter， 8-Bit	获取价格
AD7821TQ	ADI	LC2MOS High Speed, mP-Compatible 8-Bit ADC with Track/Hold Function	获取价格
AD7821TQ/883B	ETC	Analog-to-Digital Converter， 8-Bit	获取价格
AD7822	ADI	3 V/5 V, 2 MSPS, 8-Bit, 1-, 4-, 8-Channel Sampling ADCs	获取价格