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參數(shù)資料
| 型號： | AD7769JP |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | LC2MOS Analog I/O Port |
| 中文描述： | 2-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 16/16頁 |
| 文件大小： | 265K |
| 代理商： | AD7769JP |
AD7769
–16–
REV. A
C
P
Figure 31. Multichannel Inputs
Multichannel E xpansion
In some applications, more than two analog input channels are
required to be converted by the ADC. Figure 31 shows a circuit
configuration for such an application. T he ADG528A is a
latched, B-channel analog multiplexer that is ideally suited for
this application since it is specified for single supply
operation
(+12 V
±
10%).
T he
CS
,
ADC
/DAC and
WR
inputs of the AD7769 are gated to
drive the
WR
input of the ADG528A. T he multiplexer input
signal is selected on the falling edge of the
WR
pulse while the
signal is latched on the rising edge. Also, on the rising edge of
WR
, the AD7769 ADC starts conversion. T herefore, the output
signal of the multiplexer must have settled to within 8-bits over
the duration of the
WR
pulse (see ADC Conversion Cycle sec-
tion for details). T he t
ON
(
WR
) and settling time of the
ADG528A thus determines the width of the
WR
pulse.
OUT LINE DIME NSIONS
Dimensions shown in inches and (mm).
28-Lead Plastic DIP
(N-28)
28-Lead Plastic Leaded Chip Carrier
(P-28A)
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| AD7770ACPZ | 功能描述:24 Bit Analog to Digital Converter 8 Input 8 Sigma-Delta 64-LFCSP (9x9) 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態(tài):有效 位數(shù):24 采樣率（每秒）:32k 輸入數(shù):8 輸入類型:差分，單端 數(shù)據(jù)接口:SPI 配置:MUX-PGA-ADC 無線電 - S/H:ADC:- A/D 轉(zhuǎn)換器數(shù):8 架構(gòu):三角積分 參考類型:外部， 內(nèi)部 電壓 - 電源，模擬:2.2 V ~ 3.6 V 電壓 - 電源，數(shù)字:- 特性:PGA，同步采樣 工作溫度:-40°C ~ 125°C 封裝/外殼:64-WFQFN 裸露焊盤，CSP 供應(yīng)商器件封裝:64-LFCSP（9x9） 標(biāo)準(zhǔn)包裝:1 |
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