参数资料
型号: AD7328BRUZ
厂商: Analog Devices Inc
文件页数: 17/37页
文件大小: 0K
描述: IC ADC 12BIT+ SAR 8CHAN 20TSSOP
设计资源: Using AD7328 in Appls with Single-Ended Industrial-Level Signals (CN0047)
标准包装: 75
系列: iCMOS®
位数: 12
采样率(每秒): 1M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 30mW
电压电源: 双 ±
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
产品目录页面: 777 (CN2011-ZH PDF)
Data Sheet
AD7328
Rev. C | Page 23 of 36
Table 11. Power Mode Selection
PM1
PM0
Description
1
Full shutdown mode. In this mode, all internal circuitry on the AD7328 is powered down. Information in the control
register is retained when the AD7328 is in full shutdown mode.
1
0
Autoshutdown mode. The AD7328 enters autoshutdown on the 15th SCLK rising edge when the control register is
updated. All internal circuitry is powered down in autoshutdown.
0
1
Autostandby mode. In this mode, all internal circuitry is powered down, excluding the internal reference. The AD7328
enters autostandby mode on the 15th SCLK rising edge after the control register is updated.
0
Normal mode. All internal circuitry is powered up at all times.
Table 12. Sequencer Selection
SEQ1
SEQ2
Description
0
The channel sequencer is not used. The analog channel, selected by programming the ADD2 to ADD0 bits in the control
register, selects the next channel for conversion.
0
1
Uses the sequence of channels that were previously programmed in the sequence register for conversion. The AD7328
starts converting on the lowest channel in the sequence. The channels are converted in ascending order. If uninterrupted,
the AD7328 keeps converting the sequence. The range for each channel defaults to the range previously written into the
corresponding range register.
1
0
This configuration is used in conjunction with the channel address bits in the control register. This allows continuous conversions
on a consecutive sequence of channels, from Channel 0 through a final channel selected by the channel address bits in the
control register. The range for each channel defaults to the range previously written into the corresponding range register.
1
The channel sequencer is not used. The analog channel, selected by programming the ADD2 bit to ADD0 bit in the control
register, selects the next channel for conversion.
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