HV254 32-Channel High Voltage Amplier Array Features General Description The Supertex HV254 is a 32-channel, high voltage, amplier 32 independent high voltage ampliers array integrated circuit. It operates on a 275V high voltage Up to 250V output voltage supply and two low voltage supplies: +5.0V and -5.0V. Each 3.0V/s typical output slew rate channel has its own input and output. An integrated diode is Very low operating current (typically 45A per included to help monitor die temperature. channel) The input voltage can be from a DAC (Digital to Analog High value internal feedback resistors Converter) with a voltage range of 0V to the low voltage supply, Fixed gain of 50V/V V+. The output of the HV254 will swing from 7.0 to 250V. It Integrated silicon diode for temperature sensing cannot swing to ground. With the internal gain set at 50V/V, a minimum input signal of 140mV will still maintain linearity. Input voltages below 140mV can be applied without damage Applications to the device. However, the amplier will be saturated. Typical MEMS (microelectromechanical systems) driver output load is equivalent to a 125M resistor in parallel with Piezoelectric transducer driver a 100pF capacitor. The outputs have a guaranteed slew rate of at least 3V/s. The internal closed loop gain is set at a Optical crosspoint switches (using MEMS nominal value of 34.0dB (50V/V). technology) The HV254 is designed to operate with minimal power consumption while maintaining a guaranteed slew rate of 3V/s. High value resistors are used for the gain setting to minimize current on the feedback path. Typical Application Circuit Micro V+ VPP HV254 Processor HV 0 OUT DAC V 0 IN HV 1 OUT y DAC High Voltage x x V 1 IN HV 2 OUT DAC Op-Amp V 2 y HV 3 IN OUT Array DAC V 3 IN MEMS Array HV 30 OUT DAC V 30 HV 31 IN OUT DAC V 31 IN PGND V- 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.comHV254 Ordering Information Pin Conguration 80 51 100-Lead MQFP 20.00x14.00mm body Device 50 81 3.15mm height (max) 0.65mm pitch, 3.20mm footprint HV254 HV254FG-G -G indicates package is RoHS compliant (Green) 100 31 1 30 100-Lead MQFP (FG) 100-Lead MQFP (top view) Absolute Maximum Ratings Product Marking YY = Year Sealed Parameter Value Top Marking WW = Week Sealed V , High voltage supply 275V HV254FG L = Lot Number PP LLLLLLLLLL C = Country of Origin YYWW V+, Low voltage positive supply 7.0V CCCCCCCC AAA A = Assembler ID = Green Packaging V-, Low voltage negative supply -7.0V 100-Lead MQFP (FG) HV , Output voltage 0V to 275V OUT V , Analog input signal 0V to 5.0V IN Storage temperature range -65C to 150C Maximum junction temperature 150C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground. Operating Conditions Sym Parameter Min Typ Max Units Conditions V High voltage positive supply 50 - 275 V --- PP V+ Low voltage positive supply 4.75 5.0 5.25 V --- V- Low voltage negative supply -4.75 -5.0 -5.25 V --- V = 275V. All inputs set at 140mV. PP I V supply current 1.0 - 2.5 mA PP PP Typically 45A per channel. I+ V+ supply current - - 1.0 mA V+ = 5.25V I- V- supply current - - -3.0 mA V- = -5.25V T Ambient temperature range -10 - 70 C --- A T Operating temperature range -10 - 125 C --- J 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com 2