Aim-TTi TG2511A Function/Pulse/Arbitrary Generator

Aim-TTi TG2511A Function/Pulse/Arbitrary Generator

The Aim-TTI TG2511A is a high performance function/arbitrary/pulse generator with a 25 MHz frequency range and one channel.

Exceptional frequency precision

The frequency of these waveforms can be set with up to 14 digits or one micro hertz of resolution. The DDS based frequency generation system uses a TCXO timebase oscillator with a stability of 1ppm.

Waveform quality

The TG2511A generate high purity sine waves with low harmonic distortion and low phase noise. Square waves have a rise time of below 8ns (13ns on TG251xA) and low overshoot. Variable symmetry can be used up to 25MHz.

Triangle and ramp

High quality triangle and variable symmetry ramp waveforms are available up to 1MHz (TG501xA) or 500kHz (TG251xA).
These waveforms are also available at higher frequencies via the arbitrary function but without symmetry adjustment and with reduced waveform quality as the frequency increases.

VLF generation

The high resolution of the DDS system means that very low frequencies can be set. For example, a frequency of around 1mHz could be set with a resolution of 0.1% and a stability of 1ppm.

Full Pulse Generator capabilities

Both models incorporate a pulse generator mode which provides wide range pulse width and delay independent of period. Rise and fall times (edge speeds) are also fully variable.

Wide-range repetition rate

On the TG501xA, the pulse period can be set between 80ns and 2000 secs. (0.5mHz to 12.5MHz) with a resolution of 14 digits or 1µHz. On the TG251xA, the minimum pulse period is 160ns (6.25MHz).

Fully variable pulse width and delay

Pulse width and pulse delay can be independently set to a resolution of 10ns. Minimum pulse width is 20ns and duty cycles can be as low as one in two billion.

Independently variable rise and fall

The generators offer very fast edge speeds of better than 8ns on the TG501xA or 13ns on the TG251xA, but the edges can be slowed down to simulate slower pulses.
Rise and fall times are independently variable in the range 5ns to 40us (10ns to 40µs on the TG251xA), or can be linked so that both edge speeds are the same.

Trigger, burst and gate

As with all other waveforms, pulses can be triggered from an external trigger input (or a manual trigger, the internal trigger generator or a Bus command).
Burst mode creates a burst of between one and a million pulses in response to each active edge of the trigger.
Gated cause pulses to be generated only when the gate signal is true. The gate source can be external or internal exactly as the trigger signal.

Arbitrary Waveforms

Both generators offer DDS generated arbitrary waveforms capability. A number of standard waveforms are included, and up to four user defined arbitrary waveforms can be stored in the instrument at any one time

14 bits, 128k words, 125MS/s

Waveforms have a vertical resolution of 14 bits (16,384 amplitude levels). Waveforms can be created using between 2 and 131,072 points (128k).
The sampling rate is 125MHz and DDS techniques are used to provide any repetition rate between 1µHz and 10MHz (TG501xA) or 6MHz (TG251xA) with up to 14 digits of frequency resolution.

Internal and external waveform storage

Up to four user defined waveforms totalling up to 256k words can be stored within the permanent internal memory of the instrument.
However, a front mounted USB port enables external Flash memory storage of up to 1000 waveforms of any size.
This memory stick also provides a quick and convenient method for transferring waveform files to and from a PC. It can also be used for storing instrument set-ups.

Pre-built complex waveforms

Commonly used complex waveforms are provided both built-in to the instrument and for loading into the user defined waveform space.
These include sin(x)/x, exponential rise and fall, logarithmic rise and fall, gaussian, lorentz, haversine and cardiac waveforms.

Waveform creation & editing

Arbitrary waveforms can be created and edited using the simple tools built into the instrument. However, complex waveforms require an external PC based editor. Both instruments are supplied with Waveform Manager Plus for Windows® which provides the most comprehensive set of waveform tools available including a mathematical expression editor, freehand drawing, waveform libraries, and import of waveforms using the Clip Board.

For more information: Aim-TTi

Aim-TTi TG2511A Function/Pulse/Arbitrary Generator

AIM-TTi TG251xA + TG501xA Datasheet