参数资料
型号: EVAL-AD7327CBZ
厂商: Analog Devices Inc
文件页数: 18/37页
文件大小: 0K
描述: BOARD EVALUATION FOR AD7327
标准包装: 1
系列: iCMOS®
ADC 的数量: 1
位数: 12
采样率(每秒): 500k
数据接口: 串行
输入范围: ±10 V
在以下条件下的电源(标准): 17mW @ 500kSPS
工作温度: -40°C ~ 85°C
已用 IC / 零件: AD7327
已供物品:
相关产品: AD7327BRUZ-REEL-ND - IC ADC 12BIT+SAR 8CHAN 20-TSSOP
AD7327BRUZ-REEL7-ND - IC ADC 12BIT+ SAR 8CHAN 20TSSOP
AD7327BRUZ-ND - IC ADC 12BIT+ SAR 8CHAN 20TSSOP
AD7327
Rev. B | Page 24 of 36
RANGE REGISTERS
The range registers are used to select one analog input range per analog input channel. Range Register 1 is used to set the ranges for
Channel 0 to Channel 3. 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 Range Register 1 is selected
by setting the write bit to 1 and the register select bits to 0 and 1. After the initial write to Range Register 1 occurs, each time an analog
input is selected, the AD7327 automatically configures the analog input to the appropriate range, as indicated by Range Register 1.
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
VIN0A
VIN0B
VIN1A
VIN1B
VIN2A
VIN2B
VIN3A
VIN3B
0
Range Register 2 is used to set the ranges for Channel 4 to Channel 7. It is an 8-bit, write-only register with two dedicated range bits for
each of the analog input channels from Channel 4 to Channel 7. There are four analog input ranges, ±10 V, ±5 V, ±2.5 V, and 0 V to +10 V.
After the initial write to Range Register 2 occurs, each time an analog input is selected, the AD7327 automatically configures the analog
input to the appropriate range, as indicated by Range Register 2. 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
VIN4A
VIN4B
VIN5A
VIN5B
VIN6A
VIN6B
VIN7A
VIN7B
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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