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| 型号： | AD7794BRUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 18/37页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT SIG-DEL 6CH 24TSSOP |
| 产品培训模块： | ADC Applications ADC Architectures ADC DC/AC Performance |
| 标准包装： | 62 |
| 位数： | 24 |
| 采样率（每秒）： | 470 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 2.5mW |
| 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-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 管件 |
| 输入数目和类型： | 6 个差分，单极；6 个差分，双极 |
| 产品目录页面： | 779 (CN2011-ZH PDF) |
| 配用： | EVAL-AD7794EBZ-ND - BOARD EVALUATION FOR AD7794 |
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AD7794/AD7795
Rev. D | Page 24 of 36
DATA REGISTER
RS2, RS1, RS0 = 0, 1, 1; Power-On/Reset =
0x0000(AD7795), 0x000000 (AD7794)
The conversion result from the ADC is stored in this data
register. This is a read-only register. On completion of a read
operation from this register, the RDY bit/pin is set.
ID REGISTER
RS2, RS1, RS0 = 1, 0, 0; Power-On/Reset = 0xXF
The identification number for the AD7794/AD7795 is stored in
the ID register. This is a read-only register.
IO REGISTER
RS2, RS1, RS0 = 1, 0, 1; Power-On/Reset = 0x00
The IO register is an 8-bit read/write register that is used
to enable the excitation currents and select the value of the
excitation currents.
Table 21 outlines the bit designations for the IO register. IO0
through IO7 indicate the bit locations. IO denotes that the bits
are in the IO register. IO7 denotes the first bit of the data
stream. The number in brackets indicates the power-on/reset
default status of that bit.
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
0(0)
IOEN(0)
IO2DAT(0)
IO1DAT(0)
IEXCDIR1(0)
IEXCDIR0(0)
IEXCEN1(0)
IEXCEN0(0)
Table 21. IO Register Bit Designations
Bit No.
Mnemonic
Description
IO7
0
This bit must be programmed with a Logic 0 for correct operation.
IO6
IOEN
Configures Pin AIN6(+)/P1 and Pin AIN6()/P2 as analog input pins or digital output pins. When this
bit is set, the pins are configured as Digital Output Pin P1 and Digital Output Pin P2. When this bit is
cleared, these pins are configured as Analog Input Pin AIN6(+) and Analog Input Pin AIN6().
IO5 to IO4
IO2DAT/IO1DAT
P2/P1 Data. When IOEN is set, the data for Digital Output Pin P1 and Digital Output Pin P2 is written
to Bit IO2DAT and Bit IO1DAT.
IO3 to IO2
IEXCDIR1 to IEXCDIR0
Direction of Current Sources Select Bits.
IEXCDIR1
IEXCDIR0
Current Source Direction
0
Current Source IEXC1 connected to Pin IOUT1. Current Source IEXC2
connected to Pin IOUT2.
0
1
Current Source IEXC1 connected to Pin IOUT2. Current Source IEXC2
connected to Pin IOUT1.
1
0
Both current sources connected to Pin IOUT1. Permitted only when the
current sources are set to 10 μA or 210 μA.
1
Both current sources connected to Pin IOUT2. Permitted only when the
current sources are set to 10 μA or 210 μA.
IO3 to IO2
IEXCEN1 to IEXCEN0
These bits are used to enable and disable the current sources. They also select the value of the
excitation currents.
IEXCEN1
IEXCEN0
Current Source Value
0
Excitation currents disabled
0
1
10 μA
1
0
210 μA
1
1 mA
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7794BRUZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:6-Channel, Low Noise, Low Power, 24-/16-Bit ?￡-?? ADC with On-Chip In-Amp and Reference |
| AD7794BRUZ-REEL | 功能描述:IC ADC 24BIT 6CH LP 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:1,000 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 |
| AD7794BRUZ-REEL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:6-Channel, Low Noise, Low Power, 24-/16-Bit ?￡-?? ADC with On-Chip In-Amp and Reference |
| AD7794CRU | 制造商:Analog Devices 功能描述:AFE 6CH 24/16BIT 470HZ 24T 制造商:Analog Devices 功能描述:AFE, 6CH, 24/16BIT, 470HZ, 24TSSOP; IC Function:Analogue Front End Device IC; Supply Voltage Min:2.7V; Supply Voltage Max:5.25V; Operating Temperature Min:-40C; Operating Temperature Max:125C; Digital IC Case Style:TSSOP; No. of ;RoHS Compliant: Yes |
| AD7794CRUZ | 功能描述:IC ADC 24BIT 6CH LP 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 |
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