The EM1642 is a function generator from SMTmax that is capable of accommodating frequencies from 0.2 Hz up to 2 Mhz. It has various output waves of triangle, square, sine, pulse, ramp, TTL level, and single pulse. It generates an output impedance of 50Ω, amplitude of 1 mV-25Vp-p, and a square rise-time ≤50 nS.