收藏本站
参数资料
型号： EVAL-AD7794EBZ
厂商： Analog Devices Inc
文件页数： 8/37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
AD7794/AD7795
Rev. D | Page 15 of 36
CHOP DISABLED
With chop disabled, the switching time or settling time is
reduced by a factor of two. However, periodic offset calibrations
may now be required to remove offset and offset drift. When
chop is disabled, the AMP-CM bit in the mode register should
be set to 1. This limits the allowable common-mode voltage that
can be used. However, the common-mode rejection degrades if
the bit is not set.
Table 11 shows the rms noise of the AD7794/AD7795 for some
of the update rates and gain settings with chop disabled.
The numbers given are for the bipolar input range with the
internal 1.17 V reference. These numbers are typical and are
generated with a differential input voltage of 0 V.
Table 12 and Table 13 show the effective resolution while the
output peak-to-peak (p-p) resolution is listed in brackets. It is
important to note that the effective resolution is calculated
using the rms noise, while the p-p resolution is calculated based
on peak-to-peak noise. The p-p resolution represents the
resolution for which there is no code flicker. These numbers are
typical and rounded to the nearest LSB.
Table 11. RMS Noise (μV) vs. Gain and Output Update Rate Using an Internal 1.17 V Reference with Chop Disabled
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
1.22
0.98
0.33
0.18
0.13
0.062
0.053
0.051
8.33
1.74
1.53
0.49
0.29
0.21
0.1
0.079
0.07
16.7
2.64
2.44
0.79
0.48
0.33
0.16
0.13
0.12
33.2
4.55
3.52
1.11
0.66
0.46
0.21
0.17
0.16
62
5.03
4.45
1.47
0.81
0.58
0.27
0.2
0.22
123
8.13
7.24
2.27
1.33
0.96
0.48
0.36
0.37
242
15.12
13.18
3.77
2.09
1.45
0.64
0.5
0.47
470
17.18
14.63
8.86
2.96
1.92
0.89
0.69
0.7
Table 12.
Effective Resolution (Bits) vs. Gain and Output Update Rate for the AD7794 Using an Internal 1.17 V Reference with Chop Disabled
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
21 (18.5)
20 (17.5)
21 (18.5)
20.5 (18)
20 (17.5)
19.5 (17)
18.5 (16)
8.33
20.5 (18)
19.5 (17)
20 (17.5)
19.5 (17)
19 (16.5)
18 (15.5)
16.7
20 (17.5)
19 (16.5)
19.5 (17)
19 (16.5)
18 (15.5)
17 (14.5)
33.2
19 (16.5)
18.5 (16)
19 (16.5)
18.5 (16)
17.5 (15)
17 (14.5)
62
19 (16.5)
18 (15.5)
18.5 (16)
18 (15.5)
17.5 (15)
16.5 (14)
123
18 (15.5)
17.5 (15)
18 (15.5)
17.5 (15)
17 (14.5)
16.5 (14)
15.5 (13)
242
17 (14.5)
16.5 (14)
17 (14.5)
16.5 (14)
17 (14.5)
16 (13.5)
15 (12.5)
470
17 (14.5)
16.5 (14)
16 (13.5)
16.5 (14)
16 (13.5)
16.5 (14)
15.5 (13)
14.5 (12)
Table 13.
Effective Resolution (Bits) vs. Gain and Output Update Rate for the AD7795 Using an Internal 1.17 V Reference with Chop Disabled
Update Rate (Hz)
Gain of 1
Gain of 2
Gain of 4
Gain of 8
Gain of 16
Gain of 32
Gain of 64
Gain of 128
4.17
16 (16)
8.33
16 (16)
16 (15.5)
16.7
16 (16)
16 (15.5)
16 (14.5)
33.2
16 (16)
16 (15)
16 (14.5)
62
16 (16)
16 (15.5)
16 (16)
16 (15.5)
16 (15)
16 (14)
123
16 (15.5)
16 (15)
16 (15.5)
16 (15)
16 (14.5)
16 (14)
15.5 (13)
242
16 (14.5)
16 (14)
16 (14.5)
16 (14)
16 (14.5)
16 (13.5)
15 (12.5)
470
16 (14.5)
16 (14)
16 (13.5)
16 (14)
16 (13.5)
16 (14)
15.5 (13)
14.5 (12)
相关PDF资料
PDF描述
VE-B2L-EY CONVERTER MOD DC/DC 28V 50W
DC979A BOARD DELTA SIGMA ADC LTC2442
DC742A BOARD DELTA SIGMA ADC LTC2449
RCM15DCAN-S189 CONN EDGECARD 30POS R/A .156 SLD
DC846A BOARD DELTA SIGMA ADC LTC2447
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
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*