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| 型號： | AD628ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 11/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP PGA DIFF PREC 8SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Top Five Instrumentation Amplifier Problems |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 放大器類型： | 電流檢測 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 0.3 V/µs |
| -3db帶寬： | 600kHz |
| 電流 - 輸入偏壓： | 1.5nA |
| 電壓 - 輸入偏移： | 150µV |
| 電流 - 電源： | 1.6mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 36 V，±2.25 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 771 (CN2011-ZH PDF) |
AD628
Rev. G | Page 18 of 20
CURRENT LOOP RECEIVER
Analog data transmitted on a 4 to 20 mA current loop can be
detected with the receiver shown in Figure 33. The AD628 is an
ideal choice for such a function because the current loop is
driven with a compliance voltage sufficient to stabilize the loop,
and the resultant common-mode voltage often exceeds commonly
used supply voltages. Note that with large shunt values, a resistance
of equal value must be inserted in series with the inverting
input to compensate for an error at the noninverting input.
MONITORING BATTERY VOLTAGES
Figure 34 illustrates how the AD628 is used to monitor a battery
charger. Voltages approximately eight times the power supply
voltage can be applied to the input with no damage. The resistor
divider action is well suited for the measurement of many
power supply applications, such as those found in battery
chargers or similar equipment.
For proper operation, the common-mode voltage must satisfy
the input specifications in Table 1, as well as Equation 2.
6
8
1
4
5
7
2
3
AD628
+15V
+2.5V
9.53k
–15V
10k
0V TO 5V
TO ADC
I = 4 TO 20mA
100k
210k
100k
249
VCM = 15V
10k
249
02
99
2-
0
31
Figure 33. Level Shifter for 4 to 20 mA Current Loop
+IN
–IN
G= +0.1
10k
A1
–IN
100k
VREF
–5V
–IN
A2
OUT
AD628
100k
10k
CHARGING
CIRCUIT
+1.5V
BATTERY
10k
+IN
nVBAT(V)
REXT1
10k
TO ADC
CFILT
RG
02
99
2-
0
32
OTHER
BATTERIES IN
CHARGING
CIRCUIT
+5V
+IN
Figure 34. Battery Voltage Monitor
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD628ARZ-R7 | 功能描述:IC AMP PGA DIFF PREC 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| AD628ARZ-RL | 功能描述:IC AMP PGA DIFF PREC 8SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| AD628-EVAL | 制造商:Analog Devices 功能描述:Evaluation Board For High Voltage Current Shunt Sensing |
| AD629 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual-Channel Audio Difference Amplifier |
| AD629_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Common-Mode Voltage, Difference Amplifier |
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