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参数资料
| 型号： | AD7714YRZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 24/40页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SIGMA-DELTA 24SOIC |
| 标准包装： | 31 |
| 位数： | 24 |
| 采样率（每秒）： | 1k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 7mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°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 W |
| 包装： | 管件 |
| 输入数目和类型： | 3 个差分，单极；3 个差分，双极；5 个伪差分，单极；5 个伪差分，双极 |
| 配用： | EVAL-AD7714-3EBZ-ND - BOARD EVAL FOR AD7714 |
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AD7714
REV. C
–30–
Figure 8. Flowchart for Setting Up and Reading from the AD7714
CONFIGURING THE AD7714
The AD7714 contains eight on-chip registers that can be
accessed via the serial interface. Communication with any of
these registers is initiated by writing to the Communications
Register first. Figure 8 outlines a flow diagram of the sequence
which is used to configure all registers after a power-up or reset.
The flowchart also shows two different read options—the first
where the
DRDY pin is polled to determine when an update of
the data register has taken place, the second where the
DRDY
bit of the Communications Register is interrogated to see if a
data register update has taken place. Also included in the flow-
ing diagram is a series of words which should be written to the
registers for a particular set of operating conditions. These con-
ditions are test channel (AIN6/AIN6), gain of 1, burnout cur-
rent off, no filter sync, bipolar mode, 24-bit word length, boost
off and maximum filter word (4000 decimal).
START
CONFIGURE & INITIALIZE C/P SERIAL PORT
POWER-ON/RESET FOR AD7714
WRITE TO COMMUNICATIONS REGISTER SETTING UP
CHANNEL & SETTING UP NEXT OPERATION TO BE A
WRITE TO THE FILTER HIGH REGISTER (27 HEX)
WRITE TO FILTER HIGH REGISTER SETTING
UP REQUIRED VALUES (4F HEX)
WRITE TO FILTER LOW REGISTER SETTING
UP REQUIRED VALUES (A0 HEX)
WRITE TO MODE REGISTER SETTING UP REQUIRED
VALUES & INITIATING A CALIBRATION (20 HEX)
WRITE TO COMMUNICATIONS REGISTER SETTING UP
SAME CHANNEL & SETTING UP NEXT OPERATION TO
BE A WRITE TO THE FILTER LOW REGISTER (37 HEX)
WRITE TO COMMUNICATIONS REGISTER SETTING UP
SAME CHANNEL & SETTING UP NEXT OPERATION TO
BE A WRITE TO THE MODE REGISTER (17 HEX)
POLL
DRDY PIN
DRDY
LOW?
YES
NO
WRITE TO COMMUNICATIONS REGISTER SETTING UP
SAME CHANNEL & SETTING UP NEXT OPERATION TO
BE A READ FROM THE DATA REGISTER (5F HEX)
READ FROM DATA REGISTER
DRDY
LOW?
POLL
DRDY BIT OF COMMUNICATIONS REGISTER
YES
NO
WRITE TO COMMUNICATIONS REGISTER SETTING UP
SAME CHANNEL & SETTING UP NEXT OPERATION TO
BE A READ FROM THE DATA REGISTER (5F HEX)
READ FROM DATA REGISTER
WRITE TO COMMUNICATIONS REGISTER SETTING UP
SAME CHANNEL & SETTING UP NEXT OPERATION TO BE A
READ FROM THE COMMUNICATIONS REGISTER (0F HEX)
READ FROM COMMUNICATIONS REGISTER
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相关代理商/技术参数 |
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| AD7714YRZ | 制造商:Analog Devices 功能描述:IC ADC 24-BIT SIGMA DELTA |
| AD7714YRZ-REEL | 功能描述:IC ADC 24BIT SIGMA-DELTA 24SOIC 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: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 |
| AD7714YRZ-REEL7 | 功能描述:IC ADC 24BIT SIGMA-DELTA 24SOIC 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: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 |
| AD7715 | 制造商:AD 制造商全称:Analog Devices 功能描述:3 V/5 V, 450 uA 16-Bit, Sigma-Delta ADC |
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