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| 型号： | EVAL-AD7794EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 19/37页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7794 |
| 产品培训模块： | ADC Applications ADC Architectures ADC DC/AC Performance |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 470 |
| 数据接口： | SPI?、QSPI?、MICROWIRE? 和 DSP |
| 输入范围： | ±VREF/增益 |
| 在以下条件下的电源（标准）： | 2.5mW @ 470SPS |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7794 |
| 已供物品： | 板，缆线，CD |
| 相关产品： | 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 25 of 36
OFFSET REGISTER
RS2, RS1, RS0 = 1, 1, 0; Power-On/Reset = 0x8000
(AD7795), 0x800000 (AD7794))
The offset register is a 16-bit register on the AD7795 and a 24-bit
register on the AD7794. The offset register holds the offset
calibration coefficient for the ADC and its power-on reset value
is 0x8000/0x800000, for the AD7794/AD7795, respectively. The
AD7794/AD7795 each have four offset registers. Channel AIN1
to Channel AIN3 have dedicated offset registers while the
AIN4, AIN5, and AIN6 channels share an offset register. Each
of these registers is a read/write register. The register is used in
conjunction with its associated full-scale register to form a
register pair. The power-on reset value is automatically
overwritten if an internal or system zero-scale calibration is
initiated by the user. The AD7794/AD7795 must be placed in
power-down mode or idle mode when writing to the offset
register.
FULL-SCALE REGISTER
RS2, RS1, RS0 = 1, 1, 1; Power-On/Reset = 0x5XXX
(AD7795), 0x5XXX00 (AD7794)
The full-scale register is a 16-bit register on the AD7795 and a
24-bit register on the AD7794. The full-scale register holds the
full-scale calibration coefficient for the ADC. The AD7794/
AD7795 each have four full-scale registers. The AIN1, AIN2,
and AIN3 channels have dedicated full-scale registers, while the
AIN4, AIN5, and AIN6 channels share a register. The full-scale
registers are read/write registers. However, when writing to the
full-scale registers, the ADC must be placed in power-down
mode or idle mode. These registers are configured on power-on
with factory calibrated full-scale calibration coefficients, the
calibration being performed at gain = 1. Therefore, every device
has different default coefficients. The coefficients are different,
depending on whether the internal reference or an external
reference is selected. The default value is automatically
overwritten if an internal or system full-scale calibration is
initiated by the user or the full-scale register is written to.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7795 | 制造商:AD 制造商全称: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 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7796EB | 制造商:AD 制造商全称: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 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
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