In today’s designs, printed-circuit-board (PCB) real-estate comes at a premium. Fortunately, tiny components ranging from operational amplifiers (op amps) to temperature, Hall-effect, and millimeter-wave (mmWave) sensors can help you make the most of available space without compromising performance. You might face challenges, though, ranging from stringent isolation requirements to your company’s component second-sourcing policy. However, design strategies can be employed to overcome these hurdles and more.