The Highland model T840 is a two-channel high-voltage pulser intended to drive PLZT electro-optical modulators, piezo elements, vacuum photo devices, and similar capacitive loads.
FUNCTION | Embedded 2-channel pulsed driver |
VOLTAGE | VP Pulsed voltage, 0 to +1200 volts, applied to PLZT terminal 1 0 to 900 volts in LV mode |
BASELINE | VN 0 to -400 volts bias applied to PLZT terminal 2 Optional bipolar bias |
LOAD | Approximately 50 pF capacitive load per channel |
RISETIME | Tr, Tf 10 µs max |
PULSE WIDTH | Tw 50 µs min |
PULSE PERIOD | Tp 100 µs min, 10 KHz max pulse rate |
PULSE DUTY CYCLE | 90% max |
CONTROL | TTL trigger input sets Tw and Tp for both channels Switchable common/individual channel triggers Four 0-10 volt analog inputs set bias and pulse amplitudes |
CONNECTORS | One D25 female connector 24 volts DC power in Two trigger inputs, TTL, optionally commoned Four output level programs, 0-10 volts in Two 500:1 attenuated signal monitors out Two temperature monitors out Grounds Two PLZT interfaces, 5 wires each, Phoenix terminal strips VP positive HV pulse out VN negative bias voltage out +24 for PLZT heater out Temperature monitor in Ground |
PACKAGING | OEM embedded, printed-circuit board, approx. 6.5 x 3.9 x 1" |
CONFORMANCE | Best-effort conformance to UL/IEC 60950 and FCC/CE requirements No formal testing or certifications at board level ROHS/REACH compliant |
T840-1: 2-channel high voltage driver