- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362802 > EVAL-AD7705EB (Analog Devices, Inc.) 3 V/5 V, 1 mW 2-/3-Channel 16-Bit, Sigma-Delta ADCs PDF資料下載
參數(shù)資料
| 型號(hào)： | EVAL-AD7705EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 3 V/5 V, 1 mW 2-/3-Channel 16-Bit, Sigma-Delta ADCs |
| 中文描述： | 3伏/ 5伏，1毫瓦2-/3-Channel 16位Σ-Δ模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 31/32頁 |
| 文件大小： | 264K |
| 代理商： | EVAL-AD7705EB |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁當(dāng)前第31頁第32頁
AD7705/AD7706
–31–
REV. A
Battery Monitoring
Another area where the low power, single supply operation is a
requirement is battery monitoring in portable equipment appli-
cations. Figure 26 shows a block diagram of a battery monitor
that includes the AD7705 and an external multiplexer used to
differentially measure the voltage across a single cell. The sec-
ond channel on the AD7705 is used to monitor current drain
from the battery. The AD7705 with its dual input channel is
ideally suited to measurement systems requiring two input chan-
nels, as in this case, to monitor voltage and current. Since the
AD7705 can accommodate very low input signals the R
SENSE
VCELL 1
R
SENSE
AIN1(+)
AIN1(–)
AIN2(+)
AIN2(–)
REF IN(–)
AD7705
V
DD
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
Figure 26. Battery Monitoring Using the AD7705
can be kept low reducing undesired power dissipation. Operat-
ing with a gain of 128, a
±
9.57 mV full-scale signal can be
measured with a resolution of 2
μ
V, giving 13.5 bits of flicker-
free performance in such a system. In order to obtain specified
performance in unbuffered mode, the common mode range of
the input is from GND to V
DD
provided that the absolute value
of the analog input voltage lies between GND – 30mV and
V
DD
+30mV. Absolute voltages of GND – 200 mV can be
accommodated on the AD7705 at 25
°
C without any degrada-
tion in performance, but leakage current increases significantly
at elevated temperatures.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EVAL-AD7706EB | 3 V/5 V, 1 mW 2-/3-Channel 16-Bit, Sigma-Delta ADCs |
| EVAL-AD7707EB | Evaluation Board for the AD7707 3V/5V, +/-10V Input Range, 1mW, 3Channel, 16-Bit, Sigma Delta ADC |
| EVAL-AD7708EB | 8-/10-Channel, Low Voltage, Low Power, ADCs |
| EVAL-AD7718EB | 8-/10-Channel, Low Voltage, Low Power, ADCs |
| EVAL-AD7710EB | CAPACITOR 0.1UF CERAMIC 0805 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EVAL-AD7705EBZ | 功能描述:BOARD EVALUATION FOR AD7705 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| EVAL-AD7706EB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-AD7706EBZ | 功能描述:BOARD EVALUATION FOR AD7706 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。