參數(shù)資料
型號: 5962-9459701MPA
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 運(yùn)算放大器
英文描述: OP-AMP, CDIP8
封裝: DIP-8
文件頁數(shù): 4/8頁
文件大小: 1005K
代理商: 5962-9459701MPA
Introduction
The CLC426 is a wide bandwidth voltage-feedback opera-
tional amplifier that is optimized for applications requiring
wide dynamic range. The CLC426 features adjustable
supply current and external compensation for the added
flexibility of tuning its performance for demanding applica-
tions. The Typical Performance section illustrates many
of the performance trade-offs. Although designed to oper-
ate from ±5Volt power supplies, the CLC426 is equally
impressive operating from a single +5V supply. The
following discussion will enable the proper selection of
external components for optimum device performance in
a variety of applications.
External Compensation
The CLC426 is stable for noise gains
≥2V/V.Forunity-gain
operation, the CLC426 requires an external compensation
capacitor (from pin 5 to ground). The plot located in the
Typical Performance section labeled "Frequency Re-
sponse vs Compensation Cap." illustrates the CLC426's
typical AC response for different values of compensation
capacitor. From the plot it is seen that a value of 15pF
produces the optimal response of the CLC426 at unity
gain. The plot labeled "Open-Loop Gain vs. Compensation
Cap." illustrates the CLC426's open-loop behavior for
various values of compensation capacitor. This plot also
illustrates one technique of bandlimiting the device by
reducing the open-loop gain resulting in lower closed-loop
bandwidth. Fig. 1 shows the effect of external compensa-
tion on the CLC426's pulse response.
Application Discussion
Fig. 1
http://www.national.com
4
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