You searched for "arbitrary waveforms"
Tektronix
Tektronix AFG1022 Arbitrary Waveform Generator, 10 MHz, 12.5 MHz, 25 MHz Max, 2-Channel, 1 μHz, 1 mHz Min
Part: AFG1022
Dual-channel 25MHz arbitrary waveform generator with 125Msps sampling and USB control.
Tektronix
Tektronix AFG3011C Arbitrary Waveform Generator, 10MHz Max, 1 μHz Min - With RS Calibration
Part: AFG3011C
Advanced waveform generator with display screen and multiple interfaces for sophisticated signal generation.