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| 型号： | EVAL-AD7706EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 36/44页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD7706 |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 500 |
| 数据接口： | 串行 |
| 输入范围： | 0 ~ 5.25 V |
| 在以下条件下的电源（标准）： | 6.5mW @ 500SPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | AD7706 |
| 已供物品： | 板，CD |
| 相关产品： | AD7706BNZ-ND - IC ADC 16BIT 3CHAN 16DIP AD7706BRUZ-REEL7-ND - IC ADC 16BIT 3CHAN 16TSSOP AD7706BRZ-REEL7TR-ND - IC ADC 16BIT 3CHAN 16SOIC AD7706BRUZ-REEL-ND - IC ADC 16BIT 3CHAN 16TSSOP AD7706BRZ-REEL-ND - IC ADC 16BIT 3CHAN 16SOIC AD7706BRZ-ND - IC ADC 16BIT 3CH 16-SOIC AD7706BRUZ-ND - IC ADC 16BIT 3CH 16-TSSOP AD7706BRU-REEL7-ND - IC ADC 16BIT 3CH 16-TSSOP T/R AD7706BRU-ND - IC ADC 16BIT 3CH 16-TSSOP AD7706BR-REEL7-ND - IC ADC 16BIT 3CH 16-SOIC T/R 更多... |
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AD7705/AD7706
Rev. C | Page 41 of 44
BATTERY MONITORING
An application where the low power, single-supply operation is
required is battery monitoring in portable equipment applications.
Figure 29 shows a block diagram of a battery monitor using the
AD7705 and an external multiplexer to measure differentially
the voltage across a single cell.
The second channel on the AD7705 is used to monitor current
drain from the battery. The AD7705, with its dual-input
channel, is ideally suited for measurement systems requiring
two input channels, as in this case, to monitor voltage and
current.
Because the AD7705 can accommodate very low input signals,
RSENSE can be kept low, reducing undesired power dissipation.
Operating with a gain of 128, a ±9.57 mV full-scale signal can
be measured with a resolution of 2 μV, giving 13.5 bits of flicker-
free performance in such a system.
To obtain specified performance in unbuffered mode, the
common-mode range of the input is GND to VDD, provided that
the absolute value of the analog input voltage lies between
GND 100 mV and VDD + 30 mV. Absolute voltages of
GND 200 mV can be accommodated on the AD7705 at 25°C
without any degradation in performance, but with significantly
increased leakage at elevated temperatures.
VCELL 1
RSENSE
AIN1(+)
AIN1(–)
AIN2(+)
AIN2(–)
REF IN(–)
AD7705
VDD
REF IN(+)
1.225V
REF
VOLTAGE
REGULATORS
VCELL 2
VCELL 3
VCELL 4
VDIFF1
VDIFF2
VDIFF3
VDIFF4
DC BATTERY
CHARGING
SOURCE
LOAD
ON/OFF SWITCH
5V
3V
GND
4-TO-1
DIFFERENTIAL
MULTIPLEXER
01166-029
Figure 29. Battery Monitoring Using the AD7705
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7707EB | 制造商:Analog Devices 功能描述:EVAL KIT FOR 3V/5 V, 610 V INPUT RANGE, 1 MW 3-CH 16BIT, SIG - Bulk |
| EVAL-AD7708EB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-AD7708EBZ | 功能描述:BOARD EVAL FOR AD7708 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-AD7709EB | 制造商:Analog Devices 功能描述:EVAL KIT FOR 16BIT- ADC W/ SWITABLE CURRENT SOURCES - Bulk |
| EVAL-AD7710EB | 制造商:AD 制造商全称:Analog Devices 功能描述:Signal Conditioning ADC |
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