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參數資料
| 型號： | AD7706BN |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | ECONOLINE: REC2.2-S_DRW(Z)/H* - 2.2W DIP Package- 1kVDC Isolation- Regulated Output- 4.5-9V, 9-18V, 18-36V, 36-72V Wide Input Range 2 : 1- UL94V-0 Package Material- Continuous Short Circiut Protection- Cost Effective- 100% Burned In- Efficiency to 84% |
| 中文描述： | 3-CH 16-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001AB, DIP-16 |
| 文件頁數： | 31/32頁 |
| 文件大?。?/td> | 264K |
| 代理商： | AD7706BN |
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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PDF資料 |
PDF描述 |
|---|---|
| AD7706BR | 3 V/5 V, 1 mW 2-/3-Channel 16-Bit, Sigma-Delta ADCs |
| AD7706BRU | 3 V/5 V, 1 mW 2-/3-Channel 16-Bit, Sigma-Delta ADCs |
| AD7705EB | Precision Zero-Drift Operational Amplifier with Internal Capacitors; Package: SO; No of Pins: 8; Temperature Range: 0°C to +70°C |
| AD7706* | 3 V/5 V. 1 mW 2-/3-Channel 16-Bit. Sigma-Delta ADCs |
| AD7706EB | High Performance Switched Capacitor Universal Filter; Package: PDIP; No of Pins: 14; Temperature Range: 0°C to +70°C |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7706BNZ | 功能描述:IC ADC 16BIT 3CHAN 16DIP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數:12 采樣率（每秒）:20M 數據接口:并聯 轉換器數目:2 功率耗散（最大）:155mW 電壓電源:模擬和數字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數目和類型:4 個單端，單極；2 個差分，單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7706BNZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3 V/5 V, 1 mW, 2-/3-Channel, 16-Bit, Sigma-Delta ADCs |
| AD7706BR | 功能描述:IC ADC 16BIT 3CH 16-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
| AD7706BR-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 500sps 16-bit Serial 16-Pin SOIC W T/R |
| AD7706BR-REEL7 | 功能描述:IC ADC 16BIT 3CH 16-SOIC T/R RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
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