参数资料
型号: AD7321BRUZ-REEL
厂商: Analog Devices Inc
文件页数: 18/37页
文件大小: 0K
描述: IC ADC 12BIT+SAR 2CHAN 14-TSSOP
标准包装: 2,500
位数: 12
采样率(每秒): 500k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 17mW
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: 14-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 14-TSSOP
包装: 带卷 (TR)
输入数目和类型: 2 个单端,单极;2 个单端,双极;1 个差分,单极;1 个差分,双极
配用: EVAL-AD7321CBZ-ND - BOARD EVALUATION FOR AD7321
AD7321
Data Sheet
Rev. B | Page 24 of 36
Table 11. Power Mode Selection
PM1
PM0
Description
1
Full Shutdown Mode. In this mode, all internal circuitry on the AD7321 is powered down. Information in the control register
is retained when the AD7321 is in full shutdown mode.
1
0
Autoshutdown Mode. The AD7321 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 AD7321 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 ADD0 bit in the control register,
selects the next channel for conversion.
1
0
This configuration is used in conjunction with the channel address bit 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 bit in the control register. The range for each channel defaults to the range previously written into the range
register.
1
The channel sequencer is not used. The analog channel, selected by programming the ADD0 bit in the control register,
selects the next channel for conversion.
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