参数资料
型号: MCP3008-I/P
厂商: Microchip Technology
文件页数: 10/40页
文件大小: 0K
描述: IC ADC 10BIT 2.7V 8CH SPI 16-DIP
标准包装: 30
位数: 10
采样率(每秒): 200k
数据接口: 串行,SPI?
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-PDIP
包装: 管件
输入数目和类型: 8 个单端,单极;4 个伪差分,单极
产品目录页面: 672 (CN2011-ZH PDF)
MCP3004/3008
DS21295D-page 18
2008 Microchip Technology Inc.
FIGURE 4-1:
Analog Input Model.
FIGURE 4-2:
Maximum Clock Frequency
vs. Input resistance (RS) to maintain less than a
0.1 LSB deviation in INL from nominal
conditions.
CPIN
VA
RSS CHx
7pF
VT = 0.6V
ILEAKAGE
Sampling
Switch
SS
RS = 1 kΩ
CSAMPLE
= DAC capacitance
VSS
VDD
= 20 pF
±1 nA
Legend
VA
= Signal Source
ILEAKAGE = Leakage Current At The Pin
Due To Various Junctions
RSS = Source Impedance
SS
= sampling switch
CHx
= Input Channel Pad
RS = sampling switch resistor
CPIN = Input Pin Capacitance
CSAMPLE = sample/hold capacitance
VT = Threshold Voltage
0
1
2
3
4
100
1000
10000
Input Resistance (Ohms)
Clock
Frequency
(M
h
z
)
VDD = VREF = 5 V
fSAMPLE = 200 ksps
VDD = VREF = 2.7 V
fSAMPLE = 75 ksps
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