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Product InformationDescription View FilterPro Screen
FilterPro™ Multiple Feedback (MFB) and Sallen-Key Design Program is a Windows application. This application designs MFB and Sallen-Key low-pass and high-pass filters using Voltage Feedback Op Amps, resistors and capacitors. It also supports a fully-differential version of the MFB circuit. This program includes Bessell, Butterworth, Chebychev, and linear phase filter types and can be used to design filters from 1 to 10 poles. The capacitor values in each stage can be either selected by the computer or entered by the designer. An "always on" prompt window provides context-sensitive help information to the user. The response of the filter is displayed on a graph, showing gain, phase and group delay over frequency. A new version of FilterPro is now available, Version 2.0, that includes band-pass, notch, wide-band-pass, and band-reject circuits. The FilterPro V2.0 band-pass circuit is based on the MFB circuit. Because the band-pass filter is most often used for tone detection and high Q filters usually need high gain, a method was found to make the gain equal to the Q of the filter. When this is done the sensitivity to variation of the passive components is reduced allowing for a more reproducible filter. The FilterPro V2.0 notch circuit is a dual amplifier circuit whose sensitivity to variation of passive components is also reduced compared to the traditional twin-T circuit. This filter is often used to block specific tones such as 60 Hz, 120 Hz, 1kHz, etc. The FilterPro V2.0 wide-band-pass filter uses a high-pass filter cascaded with a low-pass filter. This is very useful for band-pass filters with a Q of less than 1 because the passband response is easily made flat and because the filter types such as Bessell, Butterworth, etc. are used. The FilterPro V2.0 band-reject filter uses a high-pass filter summed with a low-pass filter. This is useful to block a wide band of frequencies. It is also useful if the gain above the blocked band of frequencies is desired to be different than the gain below the blocked band. FeaturesThe completed design can be saved, loaded, or printed. Installation Recommendations:
Available UpdatesFilterPro™ Version 2.0 Compatibility IssuesFilterPro™ MFB and Sallen-Key Design Program will install on Win98, Win 2000, Win XP, and later systems. Order Options
Technical Documents
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| OPA354 | 250MHz, Rail-to-Rail I/O, CMOS Single Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
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| OPA374 | 6.5MHz, 585uA, Rail-to-Rail I/O CMOS Operational Amplifier | Precision Amplifier | |
| OPA379 | 1.8V, 2.9uA, 90kHz Rail-to-Rail I/O Operational Amplifier | Precision Amplifier | |
| OPA380 | High Speed Precision Transimpedance Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
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| OPA549 | High-Voltage, High-Current Op Amp, Excellent Output Swing | Precision Amplifier | |
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| OPA830 | Low-Power, Single-Supply Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| OPA832 | Low-Power, Single-Supply, Fixed-Gain Video Buffer Amplifier | Video Functions | |
| OPA846 | Wideband, Low Noise, Voltage Feedback Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3061 | High-Voltage, High Slew-Rate Current Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3091 | Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3095 | Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier with Power-down | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3110 | Single, Low Noise, High Voltage Current-Feedback Amplifier with Power-down | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3111 | Single, Low Noise, High Voltage Current-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3120 | Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier with Power-down | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3121 | Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS3201 | 1.8GHz Current Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4001 | 270-MHz Voltage-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4011 | 290-MHz Low-Distortion Voltage-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4021 | 350-MHz Ultra-Low Noise Voltage-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4031 | 100-MHz Low Noise Voltage-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
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| THS4051 | 70-MHz Low-Cost Voltage-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4061 | 180-MHz High Output Drive Voltage-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4081 | 175-MHz Low-Power Voltage-Feedback Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4120 | 3.3 V, 100 MHz, 43 V/us, Fully Differential CMOS Amplifier w/Shutdown | Operational Amplifier (Op Amp) | |
| THS4121 | 3.3 V, 100 MHz, 43 V/us, Fully Differential CMOS Amplifier | Operational Amplifier (Op Amp) | |
| THS4130 | Fully Differential Input/Output Low Noise Amplifier With Shutdown | Operational Amplifier (Op Amp) | |
| THS4131 | Fully Differential Input/Output Low Noise Amplifier | Operational Amplifier (Op Amp) | |
| THS4140 | Fully Differential Input/Output High Slew Rate Amplifier With Shutdown | Operational Amplifier (Op Amp) | |
| THS4141 | Fully Differential Input/Output High Slew Rate Amplifier | Operational Amplifier (Op Amp) | |
| THS4150 | Fully Differential Input/Output High Slew Rate Amplifier With Shutdown | Operational Amplifier (Op Amp) | |
| THS4151 | Fully Differential Input/Output High Slew Rate Amplifier | Operational Amplifier (Op Amp) | |
| THS4211 | Super-Fast, Ultra-Low-Distortion, High-Speed Operational Amplifier with Shutdown | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4215 | Super-Fast, Ultra-Low-Distortion, High-Speed Operational Amplifier with Shutdown | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4221 | Low-Distortion High-Speed Rail-to-Rail Output Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4225 | Low-Distortion High-Speed Rail-to-Rail Output Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4271 | Super-Fast Ultra-Low Distortion High Speed Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4275 | Super-Fast Ultra-Low Distortion High Speed Amplifier with Shutdown | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4281 | Very Low-Power High Speed Rail-To-Rail Input/Output Voltage Feedback Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4302 | Wideband Fixed Gain Amplifier | Video Functions | |
| THS4303 | Wideband Fixed-Gain Amplifier | Video Functions | |
| THS4304 | Wideband Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4500 | High-Speed Fully Differential Amplifier, +/-5 V | Operational Amplifier (Op Amp) | |
| THS4501 | High-Speed Fully Differential Amplifier, +/-5 V | Operational Amplifier (Op Amp) | |
| THS4503 | High-Speed Fully-Differential Amplifiers | Operational Amplifier (Op Amp) | |
| THS4504 | Wideband, Low Distortion Fully Differential Amplifier with Shutdown | Operational Amplifier (Op Amp) | |
| THS4505 | Wideband, Low-Distortion Fully Differential Amplifier | Operational Amplifier (Op Amp) | |
| THS4508 | Wideband Fully Differential Amplifier | Operational Amplifier (Op Amp) | |
| THS4509 | Wideband Operational Amplifier | Operational Amplifier (Op Amp) | |
| THS4511 | Wideband, Low Noise, Low Distortion Fully Differential Amplifier | Operational Amplifier (Op Amp) | |
| THS4513 | Wideband, Low Noise, Low Distortion Fully Differential Amplifier | Operational Amplifier (Op Amp) | |
| THS4520 | Rail-to-Rail Output Wideband Fully Differential Amplifier | Operational Amplifier (Op Amp) | |
| THS4601 | Wideband, FET-Input Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS4631 | High Speed FET-Input Operational Amplifier | High Speed Amplifier (Greater than equal to 50MHz) | |
| THS7001 | 70-MHz High-Speed Programmable-Gain Amplifier | Amplifiers and Linear | |
| THS7530 | Fully Differential, Continuously Variable Gain Amplifier | Amplifiers and Linear | |
| THS9000 | 50 MHz to 400 MHz Casadable Amplifier | Video Functions | |
| THS9001 | 50-MHz to 350-MHz Cascadeable Amplifier | Video Functions | |
| TLV2241 | Single Micropower, 2.5-V, RRIO, Single Supply Amplifier | Precision Amplifier | |
| TLV2341 | LinCMOS(TM) Programmable Low-Voltage Operational Amplifier | Precision Amplifier | |
| TLV2370 | 550-uA/Channel 3-MHz RRIO Op Amp with Shutdown | Precision Amplifier | |
| TLV2381 | 10-uA/Channel, 160kHz, RRIO Op Amp | Precision Amplifier | |
| TLV2401 | Single MicroPower, RRIO Operational Amplifier with wide supply voltage range and high CMRR | Precision Amplifier | |
| TLV2450 | Single Micropower Rail-To-Rail Input/Output Op Amp w/Shutdown | Precision Amplifier | |
| TLV2450A | Single Micropower Rail-To-Rail Input/Output Op Amp w/Shutdown | Precision Amplifier | |
| TLV2460 | Single, Low Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown | Precision Amplifier | |
| TLV2460A | Single, Low Power, Rail-to-Rail Input/Output Operational Amplifier w/Shutdown | Precision Amplifier | |
| TLV2470 | Single Low-Power Rail-to-Rail Input/Output Op Amp w/Shutdown | Precision Amplifier | |
| TLV2470A | Single Low-Power Rail-to-Rail Input/Output Op Amp w/Shutdown | Precision Amplifier | |
| TLV2620 | 800 uA/ch, 11MHz, RRO, Low Voltage, Single Channel Op Amp with Shutdown | Precision Amplifier | |
| TLV2621 | 800 uA/ch, 11MHz, RRO, Low Voltage, Single Channel Op Amp | Precision Amplifier | |
| TLV2630 | 1-mA/CH, 9-MHz, RRO Op Amp with Shutdown | Precision Amplifier | |
| TLV2632 | 1-mA/CH, 9-MHz, RRO Op Amp | Precision Amplifier | |
| TLV271 | 550-uA/Ch 3-MHz Rail-to-Rail Output Operational Amplifier | Precision Amplifier | |
| TLV2711 | Single LinCMOS(TM) Rail-To-Rail uPower Operational Amplifier | Precision Amplifier | |
| TLV2721 | Single LinCMOS(TM) Rail-To-Rail Very Low-Power Operational Amplifier | Precision Amplifier | |
| TLV2760 | Single 1.8-V, Micro-power, Rail-to-Rail, Single Supply Amplifier with Shutdown | Precision Amplifier | |
| TLV2761 | Single 1.8-V, Micro-power, Rail-to-Rail, Single Supply Amplifier | Precision Amplifier | |
| TLV2770 | Single 2.7-V High-Slew-Rate Rail-to-Rail Output Operational Amplifier w/Shutdown | Precision Amplifier | |
| TLV2770A | Single 2.7-V High-Slew-Rate Rail-to-Rail Output Operational Amplifier w/Shutdown | Precision Amplifier | |
| TLV2771 | Single 2.7-V High Slew Rate Rail-to-Rail Output Operational Amplifier | Precision Amplifier | |
| TLV2771A | Single 2.7-V High-Slew-Rate Rail-to-Rail Output Operational Amplifier With Shutdown | Precision Amplifier | |
| TLV2780 | Single 1.8V RRIO, 8MHz Amplifier with Shutdown | Precision Amplifier | |
| TLV2781 | Single 1.8V RRIO, 8MHz Amplifier | Precision Amplifier | |
| TLV27L1 | 11-uA/Channel, 160kHz, RR-Out Op Amp | Precision Amplifier | |
| TLV4110 | High Output Drive, Low Voltage, Single Operational Amplifier w/Shutdown | Precision Amplifier | |
| TLV4111 | High Output Drive, Low Voltage, Single Operational Amplifier | Precision Amplifier | |
| TLV4120 | High Output Drive, Differential Operational Amplifier with Shutdown | Precision Amplifier | |
| VCA810 | High-Gain Adjustable Range, Wideband, Voltage-Controlled Amplifier | Amplifiers and Linear | |
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