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參數(shù)資料
| 型號(hào)： | AMP01GSZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP INST PREC LN 120MA 20SOIC |
| 標(biāo)準(zhǔn)包裝： | 37 |
| 放大器類型： | 儀表 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 4.5 V/µs |
| -3db帶寬： | 570kHz |
| 電流 - 輸入偏壓： | 2nA |
| 電壓 - 輸入偏移： | 40µV |
| 電流 - 電源： | 3mA |
| 電流 - 輸出 / 通道： | 120mA |
| 電壓 - 電源，單路/雙路(±)： | ±4.5 V ~ 18 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-SOIC W |
| 包裝： | 管件 |
AMP01
–14–
REV. D
If heavy output currents are expected and the load is situated
some distance from the amplifier, voltage drops due to track or
wire resistance will cause errors. Voltage drops are particularly
troublesome when driving 50
loads. Under these conditions,
the sense and reference terminals can be used to “remote sense”
the load as shown in Figure 33. This method of connection puts
the I
×R drops inside the feedback loop and virtually eliminates
the error. An unbalance in the lead resistances from the sense
and reference pins does not degrade CMR, but will change the
output offset voltage. For example, a large unbalance of 3
will
change the output offset by only 1 mV.
DRIVING 50
LOADS
Output currents of 50 mA are guaranteed into loads of up to
50
and 26 mA into 500 . In addition, the output is stable
and free from oscillation even with a high load capacitance. The
combination of these unique features in an instrumentation
amplifier allows low-level transducer signals to be conditioned
and directly transmitted through long cables in voltage or cur-
rent form. Increased output current brings increased internal
dissipation, especially with 50
loads. For this reason, the
power-supply connections are split into two pairs; pins 10 and
13 connect to the output stage only and pins 11 and 12 provide
power to the input and following stages. Dual supply pins allow
dropper resistors to be connected in series with the output stage
so excess power is dissipated outside the package. Additional
decoupling is necessary between pins 10 and 13 to ground to
maintain stability when dropper resistors are used. Figure 34
shows a complete circuit for driving 50
loads.
AMP01
+IN
–IN
RG
18
1
2
3
14
15
12
13
7
9
8
10
11
V–
V+
SENSE
REFERENCE
*
OUTPUT
GROUND
TWISTED
PAIRS
REMOTE
LOAD
IN4148 DIODES ARE OPTIONAL. DIODES LIMIT THE OUTPUT
VOLTAGE EXCURSION IF SENSE AND/OR REFERENCE LINES
BECOME DISCONNECTED FROM THE LOAD.
*
RS
Figure 33. Remote Load Sensing
+IN
–IN
RG
AMP01
14
15
12
13
7
9
8
10
11
18
1
2
3
RS
5k
R1
130
1W
C1
0.047 F
+15V
SENSE
REFERENCE
VOUT
3V MAX
50
LOAD
C2
0.047 F
R2
130
1W
0.047 F
–15V
POWER BANDWIDTH, G = 100, 130kHz
POWER BANDWIDTH, G = 10, 200kHz
T.H.D.~0.04% @ 1kHz, 2Vrms
VOLTAGE GAIN, G =
(
)
20
RS
RG
RESISTERS R1 AND R2 REDUCE IC DISSIPATION
Figure 34. Driving 50
Loads
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMP01GSZ-REEL | 功能描述:IC AMP INST PREC LN 120MA 20SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:Excalibur™ 放大器類型:J-FET 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:45 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:20pA 電壓 - 輸入偏移:490µV 電流 - 電源:1.7mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 38 V，±2.25 V ~ 19 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-SOIC 包裝:帶卷 (TR) |
| AMP01NBC | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Noise, Precision Instrumentation Amplifier |
| AMP02 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Accuracy 8-Pin Instrumentation Amplifier |
| AMP02_03 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Accuracy Instrumentation Amplifier |
| AMP02053 | 制造商:Speakercraft 功能描述:BB50S Amplifier 65W RMS x 2 Channel |
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