LM321MFX/NOPB IC-321 OP.AMP. GP 1MHZ SOT23-5 TI The LM321MFX/NOPB is a high-quality product offering IC-321 OP.AMP. GP 1MHZ SOT23-5 TI. With a shrink ratio of N/A and -40°C~+85°C operating temperature, it provides reliability in various applications.