Upgraded version of low-cost function generator is capable of much higher frequency operation than other generators in its price range
TTi (Thurlby Thandar Instruments) has introduced an upgraded version of its TG120 low-cost function generator that is capable of much higher frequency operation than other generators in its price range.
Most lower-cost function generators use a technology which enables them to operate at up to a few megahertz maximum. The TG120 utilises an alternative technology which retains satisfactory waveform quality right up to 20MHz.
The generator has a frequency range of 0.2Hz to 20MHz in eight ranges, selected via a calibrated vernier.
It can also be operated in sweep mode by connecting an external sweep voltage.
A sweep range of at least 20:1 can be achieved.
Frequency modulation is also possible.
The TG120 can provide sine, triangle, square-wave and DC level waveforms.
Switchable bidirectional variable symmetry enables variable duty-cycle pulse waveforms and sawtooth waveforms to be generated.
The generator has a main output with a maximum EMF of 20V peak-to-peak from a 50 Ohm source.
An amplitude vernier with a range of 26dB is combined with two -20dB switched attenuators to provide levels down to 10 mV peak-to-peak.
Variable DC offset of +/-10V is available via a centre detent control.
An auxiliary output provides a fixed 0 to +5V level, which is suitable for driving both TTL and CMOS loads. The TG120 is housed in a robust light grey ABS case measuring 220x82x230mm and weighing 1.5kg.
It is priced at £199 (plus VAT).
