1. J. Karki, Analysis of the Sallen Key Architecture, SLOA024B, Texas Instruments, 2002.
2. R. Mancini and T. Kugelstadt, Op Amps for Everyone, SLOD006B, 16-1, Texas Instruments, 2002.
3. J. Karki, Active Low-Pass Filter Design, SLOA049A, Texas Instruments, 2002.
4. Design of switched-capacitor filters using non-ideal op amps