Kentech
Instruments Ltd.
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RTV-30 Sub ns pulser
generator

Rise and fall times <300psPulse width <300ps to 20ns
Up to 30 volts into 50Ω
Reverse terminated for 1µs
Polarity switchable
Jitter <20ps S.D.
Up to 100kHz repetition rate
External or internal trigger
Remote (USB) or local control

The RTV30 reverse terminated pulser is designed to produce a programmable impulse at anamplitude up to 30V with a pulse width adjustable from 300 ps to 20 ns. The maximum trigger
rate is 100kHz. It consists of two fast switches, one of which dumps a 22 ns charge line into
the load and the other grounds the far end of the charge line via a 50 ohm terminating resistor
which sets the timing of the falling edge and provides a well matched reverse termination. A
programmable delay generator on the falling edge allows adjustment of the duration. The
amplitude is continuously adjustable from 1V to 30V and the polarity may be set via the front
panel controls.
The pulser is triggered from the rising edge of the input trigger signal and the maximum
repetition rate is 100 kHz.
The pulser is well reverse terminated and will absorb a large fraction of any reflected signal.
Note that at late times (>1 µs) the internal switches re-open and the reverse termination
becomes worse.
The pulser has an internal rate generator and may also be triggered externally via the TTL
level trigger input. The input impedance on this unit is set to 10KΩ. Switching to an input
impedance of 50Ω requires an internal link to be made.
There is a TTL monitor output which leads the main pulse output by about 40ns. This may beused for triggering an oscilloscope. The trigger delay using an external trigger is about 54ns
(trigger in to pulse out).
An internal micro-controller controls all functions which are also available via a USB link on thefront panel.
This unit will find uses in the following areas:•
general lab benchtop unit•
laser diode/LED driver•
Image intensifier gating•
Magnetic field generation in small•
Electrophoresis and many others.

See www.kentech.co.uk
Kentech Instruments Ltd., Isis Building, Howbery Park, Wallingford, Oxfordshire, OX10 8BA, U.K.
Tel: +44 (0) 1491 82 1601 email info@kentech.co.uk

KentechInstruments Ltd.

RTV-30 Sub ns pulser
generator

1ns steps

1volt steps

Pulse
parameters at
2ns pulse width.

See www.kentech.co.uk
Kentech Instruments Ltd., Isis Building, Howbery Park, Wallingford, Oxfordshire, OX10 8BA, U.K.
Tel: +44 (0) 1491 82 1601 email info@kentech.co.uk

KentechInstruments Ltd.

RTV-30 Sub ns pulser
generator

SPECIFICATION

Amplitude into 50Ω
Amplitude adjustment
Pulse width
Rise/falltime
Max PRFPolarity
Trigger>30V~ 25% to 100%<300ps to 20ns adjustable<300ps100kHz
Switchable
External
Internal, adjustable 10Hz to 100kHz

Jitter<20ps SD

Local or remote control ofAmplitude
Pulse widith
Trigger enable/disable
Trigger source/mode
Internal trigger rate
Polarity
Local control is by keypad/LCD
Remote control by USB
AC power
Cooling100-240V AC, <100VA
Forced air

Controls and indicators
LCD/keypad
Triggered
LEDPower
LED

Connectors
AC power
Trigger
Monitor
Pulse output

IEC (rear panel)
BNC
BNC
SMA

See www.kentech.co.uk
Kentech Instruments Ltd., Isis Building, Howbery Park, Wallingford, Oxfordshire, OX10 8BA, U.K.
Tel: +44 (0) 1491 82 1601 email info@kentech.co.uk