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參數(shù)資料
| 型號： | AD746S |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Dual Precision, 500 ns Settling, BiFET Op Amp |
| 中文描述： | 雙精度，500納秒的建立，BiFET運算放大器 |
| 文件頁數(shù)： | 7/8頁 |
| 文件大小： | 428K |
| 代理商： | AD746S |
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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| AD746SQ/883B | 制造商:Analog Devices 功能描述:OP Amp Dual GP 制造商:Analog Devices 功能描述:OP AMP DUAL GP 18V 8CDIP - Rail/Tube 制造商:Analog Devices 功能描述:DUAL PREC BIFET OP AMP IC *NIC 制造商:Analog Devices Inc. 功能描述:Precision Amplifiers DUAL PREC BIFET OP AMP IC |
| AD746TH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
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