参数资料
| 型号： | XRD8775AIU-F |
| 厂商： | Exar Corporation |
| 文件页数： | 12/15页 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT PAR 20MSPS 20SSOP |
| 产品变化通告： | Obsolescence Notification 15/Apr/2010 |
| 标准包装： | 66 |
| 位数： | 8 |
| 采样率（每秒）： | 20M |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 650mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
| 输入数目和类型： | * |
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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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRD8785 | 制造商:EXAR 制造商全称:EXAR 功能描述:CMOS 8-Bit High Speed Analog-to-Digital Converter |
| XRD8785AID | 制造商:EXAR 制造商全称:EXAR 功能描述:CMOS 8-Bit High Speed Analog-to-Digital Converter |
| XRD8785AID-F | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| XRD8785AIDTR-F | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| XRD8785AIK | 制造商:EXAR 制造商全称:EXAR 功能描述:CMOS 8-Bit High Speed Analog-to-Digital Converter |
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