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参数资料
| 型号： | AD7739 |
| 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通道，高吞吐量，24位Σ-Δ模数转换器 |
| 文件页数： | 13/32页 |
| 文件大小： | 380K |
| 代理商： | AD7739 |
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AD7739
Pin No.
8
Rev. 0 | Page 13 of 32
Mnemonic
SYNC/P1
Description
SYNC/Digital Input/Digital Output. The pin direction is determined by the P1 DIR bit;
the digital value can be read/written as the P1 bit in the I/O port register. When the SYNC
bit in the I/O port register is set to 1, then the SYNC/P1 pin can be used to synchronize
the AD7739 modulator and digital filter with other devices in the system. The digital
voltage is referenced to the analog supplies. When configured as an input, the pin should
be tied high or low.
Analog Inputs.
Positive Terminal of the Differential Reference Input. REFIN(+) voltage potential can lie
anywhere between AV
DD
and AGND. In normal circuit configuration, this pin should be
connected to a 2.5 V reference voltage.
Negative Terminal of the Differential Reference Input. REFIN(–) voltage potential can lie
anywhere between AV
DD
and AGND. In normal circuit configuration, this pin should be
connected to a 0 V reference voltage.
Ground Reference Point for Analog Circuitry.
Logic Output. Used as a status output in both conversion mode and calibration mode. In
conversion mode, a falling edge on this output indicates that either any channel or all
channels have unread data available, according to the RDYFN bit in the I/O port register.
In calibration mode, a falling edge on this output indicates that calibration is complete
(see the Digital Interface Description section for details).
Serial Data Output. Serial data is read from the output shift register on the part. This
output shift register can contain information from any AD7739 register, depending on
the address bits of the communications register.
Serial Data Input (Schmitt Triggered). Serial data is written to the input shift register on
the part. Data from this input shift register is transferred to any AD7739 register,
depending on the address bits of the communications register.
Digital Supply Voltage, 3 V or 5 V Nominal.
Ground Reference Point for Digital Circuitry.
9–16
17
AIN0–AIN7
REFIN(+)
18
REFIN(–)
19
20
AGND
RDY
21
DOUT
22
DIN
23
24
DV
DD
DGND
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| AD7739BRU | 功能描述:IC ADC 24BIT 8-CH 24-TSSOP 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-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 |
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