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| 型号： | AD7854LARZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 2/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT PARALLEL LP 28-SOIC |
| 标准包装： | 27 |
| 位数： | 12 |
| 采样率（每秒）： | 100k |
| 数据接口： | 并联 |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 30mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
| 输入数目和类型： | 1 个伪差分，单极；1 个伪差分，双极 |
| 产品目录页面： | 779 (CN2011-ZH PDF) |
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AD7854/AD7854L
–10–
REV. B
STATUS REGISTER
The arrangement of the status register is shown below. The status register is a read-only register and contains 16 bits of data. The
status register is selected by writing to the control register and putting two 1s in RDSLT1 and RDSLT0. The function of the bits in
the status register are described below. The power-up status of all bits is 0.
START
READ STATUS REGISTER
WRITE TO CONTROL REGISTER
SETTING RDSLT0 = RDSLT1 = 1
Figure 4. Flowchart for Reading the Status Register
MSB
ZERO
PMGT1
PMGT0
ONE
AMODE
BUSY
CALMD
CALSLT1
CALSLT0
STCAL
LSB
Status Register Bit Function Description
Bit
Mnemonic
Comment
15
ZERO
These six bits are always 0.
14
ZERO
13
ZERO
12
ZERO
11
ZERO
10
ZERO
9
PMGT1
Power Management Bits. These bits will indicate if the part is in a power-down mode or not. See Table VI
8
PMGT0
in Power-Down Section for description.
7
ONE
Both these bits are always 1.
6
ONE
5
AMODE
Analog Mode Bit. When this bit is a 0, the device is set up for the unipolar analog input range. When this
bit is a 1, the device is set up for the bipolar analog input range.
4
BUSY
Conversion/Calibration Busy Bit. When this bit is 1, this indicates that there is a conversion or calibration
in progress. When this bit is 0, there is no conversion or calibration in progress.
3
CALMD
Calibration Mode Bit. A 0 in this bit indicates a self-calibration is selected, and a 1 in this bit indicates a
system calibration is selected (see Table III).
2
CALSLT1
Calibration Selection Bits and Start Calibration Bit. The STCAL bit is read as a 1 if a calibration is in
1
CALSLT0
progress and as a 0 if there is no calibration in progress. The CALSLT1 and CALSLT0 bits indicate
0
STCAL
which of the calibration registers are addressed for reading and writing (see section on the Calibration
Registers for more details).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7854LARZ-REEL | 功能描述:IC ADC 12BIT PARALLEL LP 28SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7854LBR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 12-Bit |
| AD7854SQ | 制造商:Rochester Electronics LLC 功能描述:12-BIT SINGLE CH.PARALLEL ADC I.C. - Bulk |
| AD7856 | 制造商:AD 制造商全称:Analog Devices 功能描述:5 V Single Supply, 8-Channel 14-Bit 285 kSPS Sampling ADC |
| AD7856AN | 制造商:Analog Devices 功能描述:ADC Single SAR 285ksps 14-bit Serial 24-Pin PDIP 制造商:Analog Devices 功能描述:IC 14BIT ADC 7856 DIP24 |
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