参数资料
型号: XRD8799AIQ
厂商: Exar Corporation
文件页数: 8/24页
文件大小: 0K
描述: IC ADC 10BIT 2MSPS 44PQFP
产品变化通告: Obsolescence Notification 15/Apr/2010
标准包装: 160
位数: 10
采样率(每秒): 2M
数据接口: 并联
转换器数目: 8
功率耗散(最大): 450mW
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: 44-QFP
供应商设备封装: 44-PQFP(10x10)
包装: 托盘
输入数目和类型: *
xr
xr
XRD8799
LOW POWER, 2 MSPS, 10-BIT, A/D CONVERTER WITH 8-CHANNEL MUX
REV. 1.00
16
FIGURE 19.
±10V ANALOG INPUT
For R = 5k use Beckman Instruments #694-3-R10k resistor array or equivalent.
NOTE: High R values affect the input BW of ADC due to the (R * CIN of ADC) time constant. Therefore, for different applica-
tions the R value needs to be selected as a trade-off between AIN settling time and power dissipation.
FIGURE 20. A/D LADDER AND AIN WITH PROGRAMMED CONTROL (OF VREF(+), VREF(-), 1/4 AND 3/4 TAP.)
V
REF(+)
V
IN
+
-
2R
R
A
IN1
V
REF(-)
+10V
+5V
DB0
AGND
AV
DD
2R
1 of 8
A
IN8
V
IN
+
-
@ Power Down write values to DAC 3, 2, 1 = DAC 4 to minimize power consumption.
Only A
IN and Ladder detail shown.
DAC4
DAC3
DAC2
DAC1
XRD8799
V
REF(+)
3/4
1/4
V
REF(+)
V
REF1(-)
DAC0
DAC7
+
-
A
IN8
A
IN1
MP7641
MP7226
V
IN
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