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參數(shù)資料
| 型號(hào)： | XRD8775AIU |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 12/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 8BIT PAR 20MSPS 20SSOP |
| 產(chǎn)品變化通告： | Obsolescence Notification 15/Apr/2010 |
| 標(biāo)準(zhǔn)包裝： | 66 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 20M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 650mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-SSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | * |
XRD8775
6
Rev. 4.00
APPLICATION NOTES
Signals should not exceed AV
DD +0.5V or go below
AGND -0.5V or DV
DD +0.5V or DGND -0.5V. All pins
have internal protection diodes that will protect them
from short transients (<100
s) outside the supply
range.
AGND and DGND pins are connected internally through
the P- substrate. DC voltage differences between these
pins will cause undesirable internal substrate currents.
The power supply (AV
DD) and reference voltage (VRT &
V
RB) pins should be decoupled with 0.1F and 10F
capacitors to AGND, placed as close to the chip as
possible.
The digital outputs should not drive long wires or buses.
The capacitive coupling and reflections will contribute
noise to the conversion.
To avoid timing errors, use the rising edge of the sample
clock (CLK) to latch data from the XRD8775 to other
parts of the system.
The reference can be biased internally by shorting V
RT
to V
RTS and VRB to VRBS. This will generate 0.6V at VRB
and 2.6V at V
RT (see Figure 5.).
If the internal reference pins V
RTS and/or VRBS are not
used they should be left unconnected.
Graph 1. DNL vs. Code
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0.8
1.0
0
32
64
96
128
160
192
224
256
Code
DNL
(LSB)
Vdd = 5.0V
Vrt = 2.6V
Vrb = 0.6V
Fs = 15MHz
Ta = 25
oC
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRD8775AIU-F | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| XRD8785 | 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS 8-Bit High Speed Analog-to-Digital Converter |
| XRD8785AID | 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS 8-Bit High Speed Analog-to-Digital Converter |
| XRD8785AID-F | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| XRD8785AIDTR-F | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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