参数资料
型号: AD7323BRUZ-REEL7
厂商: Analog Devices Inc
文件页数: 19/37页
文件大小: 0K
描述: IC ADC 12BIT+ SAR 4CHAN 16TSSOP
标准包装: 1,000
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: 16-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 16-TSSOP
包装: 带卷 (TR)
输入数目和类型: 4 个单端,单极;4 个单端,双极;2 个差分,单极;2 个差分,双极
配用: EVAL-AD7323CBZ-ND - BOARD EVALUATION FOR AD7323CBZ
Data Sheet
AD7323
Rev. B | Page 25 of 36
SEQUENCE REGISTER
The sequence register on the AD7323 is a 4-bit, write-only register.
Each of the four analog input channels has one corresponding
bit in the sequence register. To select a channel for inclusion in
the sequence, set the corresponding channel bit to 1 in the
sequence register.
RANGE REGISTER
The range register is used to select one analog input range per
analog input channel. It is an 8-bit, write-only register with two
dedicated range bits for each of the analog input channels from
Channel 0 to Channel 3. There are four analog input ranges,
±10 V, ±5 V, ±2.5 V, and 0 V to +10 V. A write to the range
register is selected by setting the write bit to 1 and the register
select bits to 0 and 1. After the initial write to the range register
occurs, each time an analog input is selected, the AD7323
automatically configures the analog input to the appropriate
range, as indicated by the range register. The ±10 V input range
is selected by default on each analog input channel (see Table 13).
MSB
LSB
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Write
Register Select 1
Register Select 2
VIN0
VIN1
VIN2
VIN3
0
MSB
LSB
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Write
Register Select 1
Register Select 2
VIN0A
VIN0B
VIN1A
VIN1B
VIN2A
VIN2B
VIN3A
VIN3B
0
Table 13. Range Selection
VINxA
VINxB
Description
0
This combination selects the ±10 V input range on VINx.
0
1
This combination selects the ±5 V input range on VINx.
1
0
This combination selects the ±2.5 V input range on VINx.
1
This combination selects the 0 V to +10 V input range on VINx.
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