Found 4 alternatives for UAF42AP by Texas Instruments. Interface Filters Active — 14-DIP (0.300", 7.62mm).
LOW POWER 8TH ORDER ELLIPTIC LOW
IC FILTER 20KHZ LOWPASS 14DIP
IC FILTER 100KHZ LINEAR PH 14DIP
IC FILTER 40KHZ UNIV SWTCH 14DIP