參數(shù)資料
型號(hào): AD7321BRUZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 19/37頁
文件大小: 0K
描述: IC ADC 12BIT+ SAR 2CHAN 14TSSOP
標(biāo)準(zhǔn)包裝: 1,000
位數(shù): 12
采樣率(每秒): 500k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 17mW
電壓電源: 雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 14-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個(gè)單端,單極;2 個(gè)單端,雙極;1 個(gè)差分,單極;1 個(gè)差分,雙極
配用: EVAL-AD7321CBZ-ND - BOARD EVALUATION FOR AD7321
Data Sheet
AD7321
Rev. B | Page 25 of 36
RANGE REGISTER
The range register is used to select one analog input range per analog input channel and to set the ranges for Channel 0 and Channel 1. It
is a 6-bit, write-only register with two dedicated range bits for each of the analog input channels, Channel 0 and Channel 1. 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, the ZERO
bit to 0, and the register select bit to 1. After the initial write to the range register occurs, each time an analog input is selected, the
AD7321 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
ZERO
Register Select
VIN0A
VIN0B
0
VIN1A
VIN1B
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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