V

OUT

V = 1Vrms

IN

OPA363

150kW

19.5kW

220pF

1.8kW

3.3nF

47pF

R

11

3.92kW

3.92kW

C

13

1000pF

R

14

3.48kW

C

15

1000pF

V

OUT

V

IN

R

1

3.92kW

R

3

1.33kW

C

4

1000pF

1/2

OPA2363

1/2

OPA2363

3

2

1

6

5

7

2

3

6

OPA363

OPA363, OPA2363

OPA364, OPA2364, OPA4364

SBOS259C – SEPTEMBER 2002 – REVISED MAY 2013

www.ti.com

ACTIVE FILTERING

Low harmonic distortion and noise specifications plus high gain and slew rate make the OPA363 and OPA364

optimal candidates for active filtering. Figure 31 shows the OPA2363 configured as a low-distortion, 3rd-order

GIC (General Immittance Converter) filter. Figure 32 shows the implementation of a Sallen-Key, 3-pole, low-pass

Bessel filter.

Figure 31. The OPA2363 as a 3rd-Order, 40kHz, Low-Pass GIC Filter

Figure 32. The OPA363 or OPA364 Configured as a 3-Pole, 20kHz, Sallen-Key Filter

14

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Product Folder Links: OPA363 OPA2363 OPA364 OPA2364 OPA4364