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| 型号： | AD746A |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Dual Precision, 500 ns Settling, BiFET Op Amp |
| 中文描述： | 双精度，500纳秒的建立，BiFET运算放大器 |
| 文件页数： | 7/8页 |
| 文件大小： | 428K |
| 代理商： | AD746A |
AD746
REV. B
–7–
Table I. Performance Summary for the 3 Op Amp
Instrumentation Amplifier Circuit
TSETTLE
Gain
RG
Bandwidth
(0.01%)
2
20 k
2.5 MHz
1.0
s
10
4.04 k
1 MHz
2.0
s
100
404
290 kHz
5.0
s
Figure 25. Settling Time of the 3 Op
Amp Instrumentation Amplifier.
Gain = 10, Horizontal Scale: 0.5
s/Div,
Vertical Scale: 5 V/Div.
Error Signal Scale: 0.01%/Div.
THD Performance Considerations
The AD746 was carefully optimized to offer excellent
performance in terms of total harmonic distortion (THD) in
signal processing applications. The THD level when operating
the AD746 in inverting gain applications will show a gradual
rise from the distortion floor of 20 dB/decade (see Figure 28).
In noninverting applications, care should be taken to balance
the source impedances at both the inverting and noninverting
inputs, to avoid distortion caused by the modulation of input
capacitance inherent in all BiFET op amps.
Figure 26. THD Measurement, Inverter Circuit
Figure 27. THD Measurement, Follower Circuit
A HIGH SPEED 3 OR AMP INSTRUMENTATION
AMPLIFIER CIRCUIT
The instrumentation amplifier circuit shown in Figure 23 can
provide a range of gains from 2 up to 1000 and higher. The
circuit bandwidth is 2.5 MHz at a gain of 2 and 750 kHz at a
gain of 10; settling time for the entire circuit is less than 2
s to
within 0.01% for a 10 volt step, (G = 10).
Figure 23. A High Performance, 3 Op Amp, Instrumenta-
tion Amplifier Circuit
Figure 24. Pulse Response of the 3
Op Amp Instrumentation Amplifier.
Gain = 10, Horizontal Scale:
0.5
s/Div, Vertical Scale: 5 V/Div.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD746AH | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Feedback Operational Amplifier |
| AD746AQ | 功能描述:IC OPAMP BIFET 13MHZ DUAL 8CDIP 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 |
| AD746B | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Precision, 500 ns Settling, BiFET Op Amp |
| AD746BH | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Feedback Operational Amplifier |
| AD746BQ | 功能描述:IC OPAMP BIFET 13MHZ DUAL 8CDIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:TS1854A View All Specifications 标准包装:50 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.25 V/µs 增益带宽积:630kHz -3db带宽:- 电流 - 输入偏压:16nA 电压 - 输入偏移:1000µV 电流 - 电源:162µA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):1.8 V ~ 6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 |
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