TL032ACD datasheet(43/68 Pages) TI

No. de pieza	TL032ACD

Descripción Electrónicos	ENHANCED-JFET LOW-POWER LOW-OFFSET OPERATIONAL AMPLIFIERS

PDF	68 Pages

Scroll/Zoom	100%

Fabricante Electrónico	TI [Texas Instruments]

Página de inicio	http://www.ti.com

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43 / 68 page

TL03x, TL03xA

ENHANCED-JFET LOW-POWER LOW-OFFSET

OPERATIONAL AMPLIFIERS

SLOS180C – FEBRUARY 1997 – REVISED DECEMBER 2001

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

high-Q notch filter

In general, Texas Instruments enhanced-JFET operational amplifiers serve as excellent filters. The circuit in

Figure 64 provides a narrow notch at a specific frequency. Notch filters are designed to eliminate frequencies

that are interfering with the operation of an application. For this filter, the center frequency can be calculated as:

O +

With the resistors and capacitors shown in Figure 64, the center frequency is 1 kHz. C1 = C3 = C2 + 2 and

R1 = R3 = 2

× R2. The center frequency can be modified by varying these values. When adjusting the center

frequency, ensure that the operational amplifier has sufficient gain at the frequency required.

0.2

–8

f – Frequency – kHz

0.4

0.6

0.8

0.2

0.4

0.6

0.8

–7

–6

–5

–4

–3

–2

1.5 M

Ω

220 pF

750 k

Ω

110 pF

1.5 M

Ω

15 V

–15 V

TL03x

–1

Figure 64. High-Q Notch Filter

TL032ACD Datasheet(PDF) 43 Page - Texas Instruments

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