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參數資料
| 型號： | EVAL-AD7794EBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 18/37頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVALUATION FOR AD7794 |
| 產品培訓模塊： | ADC Applications ADC Architectures ADC DC/AC Performance |
| 標準包裝： | 1 |
| ADC 的數量： | 1 |
| 位數： | 24 |
| 采樣率（每秒）： | 470 |
| 數據接口： | SPI?、QSPI?、MICROWIRE? 和 DSP |
| 輸入范圍： | ±VREF/增益 |
| 在以下條件下的電源（標準）： | 2.5mW @ 470SPS |
| 工作溫度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7794 |
| 已供物品： | 板，纜線，CD |
| 相關產品： | AD7794CRUZ-REEL-ND - IC ADC 24BIT 6CH LP 24-TSSOP AD7794CRUZ-ND - IC ADC 24BIT 6CH LP 24-TSSOP AD7794BRU-ND - IC ADC 24BIT 6CH LP 24-TSSOP AD7794BRUZ-REEL-ND - IC ADC 24BIT 6CH LP 24-TSSOP AD7794BRU-REEL-ND - IC ADC 24BIT 6CH LP 24-TSSOP AD7794BRUZ-ND - IC ADC 24BIT SIG-DEL 6CH 24TSSOP |
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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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相關代理商/技術參數 |
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| EVAL-AD7795 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Evaluation Board for the AD7795 16-Bit, Low Power Sigma-Delta ADC (6 Channels) |
| EVAL-AD7795EB | 制造商:Analog Devices 功能描述:EVAL BD LOW PWR, 16BIT BFFRED SIGMA-DELTA ADC - Bulk |
| EVAL-AD7795EBZ | 功能描述:BOARD EVAL FOR AD7795 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數轉換器 (ADC) 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數量:1 位數:12 采樣率（每秒）:94.4k 數據接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7796EB | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, 16-/24-Bit Sigma-Delta ADC for Bridge Sensors |
| EVAL-AD7796EBZ | 功能描述:BOARD EVALUATION FOR AD7796 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數轉換器 (ADC) 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- ADC 的數量:1 位數:12 采樣率（每秒）:94.4k 數據接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標準）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
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