参数资料
| 型号： | AMP01AX |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/22页 |
| 文件大小： | 0K |
| 描述： | IC AMP INST PREC LN 120MA 18CDIP |
| 标准包装： | 1 |
| 放大器类型： | 仪表 |
| 电路数： | 1 |
| 转换速率： | 4.5 V/µs |
| -3db带宽： | 570kHz |
| 电流 - 输入偏压： | 1nA |
| 电压 - 输入偏移： | 20µV |
| 电流 - 电源： | 3mA |
| 电流 - 输出 / 通道： | 120mA |
| 电压 - 电源，单路/双路(±)： | ±4.5 V ~ 18 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 18-CDIP（0.300"，7.62mm） |
| 供应商设备封装： | 18-CDIP |
| 包装： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| AMP-01AX/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Instrumentation Amp， Resistor-Programmable |
| AMP01AX/883C | 制造商:Analog Devices 功能描述:SP Amp INSTR Amp Single |
| AMP-01BTC/883 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Instrumentation Amp， Resistor-Programmable |
| AMP01BTC/883C | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Noise, Precision Instrumentation Amplifier |
| AMP01BX | 功能描述:IC AMP INST PREC LN 120MA 18CDIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:3.5 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:30pA 电压 - 输入偏移:2000µV 电流 - 电源:200µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
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