- 您现在的位置：买卖IC网 > PDF目录378276 > AD7739BRU (ANALOG DEVICES INC) 8-Channel, High Throughput, 24-Bit Sigma-Delta ADC PDF资料下载
参数资料
| 型号： | AD7739BRU |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | ADC |
| 英文描述： | 8-Channel, High Throughput, 24-Bit Sigma-Delta ADC |
| 中文描述： | 8-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO24 |
| 封装： | MS-153AD, TSSOP-24 |
| 文件页数： | 27/32页 |
| 文件大小： | 380K |
| 代理商： | AD7739BRU |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页当前第27页第28页第29页第30页第31页第32页
AD7739
MULTIPLEXER, CONVERSION, AND DATA
OUTPUT TIMING
The specified conversion time includes one or two settling and
sampling periods and a scaling time.
Rev. 0 | Page 27 of 32
With chopping enabled (Figure 24), a conversion cycle starts
with a settling time of 43 MCLK cycles or 44 MCLK cycles
(~7 μs with a 6.144 MHz MCLK) to allow the circuits following
the multiplexer to settle. The sigma-delta modulator then
samples the analog signals and the digital filter processes the
digital data stream. The sampling time depends on FW, i.e., on
the channel conversion time register contents. After another
settling of 42 MCLK cycles (~6.8 μs), the sampling time is
repeated with a reversed (chopped) analog input signal. Then,
during the scaling time of 163 MCLK cycles (~26.5 μs), the two
results from the digital filter are averaged, scaled using the
calibration registers, and written into the channel data register.
With chopping disabled (Figure 25), only one sampling time is
preceded by a settling time of 43 MCLK or 44 MCLK cycles and
followed by a scaling time of 163 MCLK cycles.
The RDY pin goes high during the scaling time, regardless of its
previous state. The relevant RDY bit is set in the ADC status
register and in the channel status register, and the RDY pin goes
low when the channel data register is updated and the channel
conversion cycle is finished. If in continuous conversion mode,
the part will automatically continue with a conversion cycle on
the next enabled channel.
Note that every channel can be configured independently for
conversion time and chopping mode. The overall cycle and
effective per channel data rates depend on all enabled
channel settings.
– CHANNEL 1
SCALING
TIME
SAMPLING
TIME
+ CHANNEL 1
SAMPLING
TIME
SETTLING
TIME
MULTIPLEXER
– CHANNEL 0
RDY
SETTLING
TIME
CONVERSION TIME
03742-0-024
Figure 24. Multiplexer and Conversion Timing—Continuous Conversion on Several Channels with Chopping Enabled
SCALING
TIME
CHANNEL 1
SAMPLING
TIME
MULTIPLEXER
CHANNEL 0
RDY
SETTLING
TIME
CONVERSION TIME
03742-0-025
Figure 25. Multiplexer and Conversion Timing—Continuous Conversion on Several Channels with Chopping Disabled
相关PDF资料 |
PDF描述 |
|---|---|
| AD7739BRU-REEL | 8-Channel, High Throughput, 24-Bit Sigma-Delta ADC |
| AD7739BRU-REEL7 | 8-Channel, High Throughput, 24-Bit Sigma-Delta ADC |
| AD79024 | LC2MOS 20-Bit Data Acquisition System |
| AD8152 | 34 x 34, 3.2 Gbps Asynchronous Digital Crosspoint Switch |
| AD8152-EVAL | 34 x 34, 3.2 Gbps Asynchronous Digital Crosspoint Switch |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7739BRU-REEL | 功能描述:IC ADC 24BIT 8CH SIG-DEL 24TSSOP 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 |
| AD7739BRU-REEL7 | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 3.05Msps 24-bit Serial 24-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 15.133KSPS 24BIT SERL 24TSSOP - Tape and Reel |
| AD7739BRUZ | 功能描述:IC ADC 24BIT 8-CH 24-TSSOP 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 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7739BRUZ | 制造商:Analog Devices 功能描述:IC, ADC, 24BIT, 15.1KSPS, TSSOP-24 |
| AD7739BRUZ-REEL7 | 功能描述:IC ADC 24BIT 8CH SIG-DEL 24TSSOP 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 |
发布紧急采购，3分钟左右您将得到回复。