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参数资料
| 型号： | AD7858LANZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/32页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 8CHAN SRL 24DIP |
| 标准包装： | 15 |
| 位数： | 12 |
| 采样率（每秒）： | 100k |
| 数据接口： | 8051，QSPI?，串行，SPI? µP |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 33mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 24-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 24-PDIP |
| 包装： | 管件 |
| 输入数目和类型： | 8 个单端，单极；4 个伪差分，单极 |
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REV. B
–12–
AD7858/AD7858L
MSB
ZERO
BUSY
SGL/
DIFF
CH2
CH1
CH0
PMGT1
PMGT0
RDSLT1
RDSLT0
2/
3 MODE
X
CALMD
CALSLT1
CALSLT0
STCAL
LSB
STATUS REGISTER BIT FUNCTION DESCRIPTION
Bit
Mnemonic
Comment
15
ZERO
This bit is always 0.
14
BUSY
Conversion/Calibration Busy Bit. When this bit is 1, it indicates that there is a conversion
or calibration in progress. When this bit is 0, there is no conversion or calibration in progress.
13
SGL/
DIFF
These four bits indicate the channel selected for conversion (see Table III).
12
CH2
11
CH1
10
CH0
9
PMGT1
Power management bits. These bits along with the
SLEEP pin will indicate if the part is in a
8
PMGT0
power-down mode or not. See Table VI for description.
7
RDSLT1
Both of these bits are always 1, indicating it is the status register being read (see Table II).
6
RDSLT0
52/
3 MODE
Interface Mode Select Bit. With this bit at 0, the device is in Interface Mode 2. With this bit at
1, the device is in Interface Mode 1. This bit is reset to 0 after every read cycle.
4X
Don’t care bit.
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 IV).
2
CALSLT1
Calibration Selection Bits and Start Calibration Bit. The STCAL bit is read as a 1 if a
1
CALSLT0
calibration is in progress and as a 0 if there is no calibration in progress. The CALSLT1 and
0
STCAL
CALSLT0 bits indicate which of the calibration registers are addressed for reading and writing
(see section on the Calibration Registers for more details).
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 first 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
WRITE TO CONTROL REGISTER
SETTING RDSLT0 = RDSLT1 = 1
READ STATUS REGISTER
Figure 6. Flowchart for Reading the Status Register
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7858LAR | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 12-bit Serial 24-Pin SOIC W |
| AD7858LAR3 | 制造商:AD 制造商全称:Analog Devices 功能描述:3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
| AD7858LAR-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 100ksps 12-bit Serial 24-Pin SOIC W T/R |
| AD7858LARS | 功能描述:IC ADC 12BIT 8CH SRL 24-SSOP RoHS:否 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:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7858LARS3 | 制造商:AD 制造商全称:Analog Devices 功能描述:3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADC |
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