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HV254
Demo Kit Available
32-Channel High Voltage Amplifier Array
Block Diagram
V+ VPP
Features
32 independent high voltage amplifiers Output voltage up to 250V 3V/s output slew rate Fixed gain of 50V/V High value internal feedback resistors Very low operating current (typically 45A per channel) Integrated silicon diode for temperature sensing
Anode Cathode
VIN0
Application
MEMS (microelctromechanical systems) driver Piezoelectric transducer driver Optical crosspoint switches (using MEMS technology)
VIN1
R
General Description
The Supertex HV254 is a 32-channel high voltage amplifier array integrated circuit. It operates on a 275V high voltage supply and two low voltage supplies: +5.0V and -5.0V. Each channel has its own input and output. An integrated diode is included to help monitor die temperature. The input voltage can be from a DAC with a voltage range of 0V to the low voltage supply, V+. The output of the HV254FG will swing from 7V to 250V. It 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 to the device. The amplifier, however, will be saturated.Typical output load is equivalent to a 125Mohm resistor in parallel with a 100pF capacitor. The outputs have a guaranteed slew rate of at least 3V/s. The internal closed loop gain is set at a nominal value of 34.0dB (50V/V). 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.
R
PGND 49R R
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+
VIN31
+ +
HVOUT0 V49R
V+ VPP
HVOUT1 V49R
V+ VPP
HVOUT31
V-
HV254 Ordering Information
Device HV254 Maximum Output Voltage 250V Package Options 100 Lead MQFP HV254FG Die HV254X
Absolute Maximum Ratings*
VPP, High voltage supply V+, Low voltage positive supply V-, Low voltage negative supply HVOUT, Output voltage VIN, Analog input signal Storage temperature range Maximum junction temperature
*Absolute
275V 7.0V -7.0V 0V to 275V 0V to 5.0V -65C to 150C 150C
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.
Electrical Characteristics
Symbol Parameter
(Over operating conditions unless otherwise noted.)
Min
Typ
Max
Units
Conditions
Operating Conditons
VPP V+ VIPP I+ ITA TJ High voltage positive supply Low voltage positive supply Low voltage negative supply VPP supply current V+ supply current VNN supply current Ambient temperature range Junction temperature range -10 -10 50 4.75 -4.75 1.0 5.0 -5.0 275 5.25 -5.25 2.5 1.0 -3.0 70 TBD 125 V V V mA mA mA C C VPP=275V, All inputs set at 140mV. Typically 45A per channel V+ = 5.25V V- = -5.25V
High Voltage Amplifier Output
HVOUT VIN HVOS SR RFB AV BW CLOAD HVOUT voltage swing Input Voltage Range HVOUT DC offset HVOUT slew rate Feedback impedance Closed loop gain HVOUT -3dB channel bandwidth HVOUT capacitive load Stability (max drift) 3.0 8 47.5 5.0 0 100 500 12 50.0 52.5 7.0 0.14 1.5 250 V+ 1.52 V V V V/s M V/V KHz pF mV Measured at HVOUT VPP = 275V VPP = 275V. 30mV input offset VPP = 275V, Load = 125M//100pF VPP = 275V, Load=125M//100pF
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HV254 Diode
Symbol Parameter Min Typ Max Units Conditions
Power Up/Down Sequence
The device can be damaged due to improper power up / down sequence. To prevent damage, please follow the acceptable power up /down sequences and add two external diodes as shown in the diagram below. The first diode is a high voltage diode across Vpp and V+ where the anode of the diode is connected to V+ and the cathode of the diode is connected to Vpp. Any low current high voltage diode such as a 1N4004 will be adequate. The second diode is a schottky diode across V- and DGnd where the anode of the schottky diode is connected to V- and the cathode is connected to DGnd. Any low current schottky diode such as a 1N5817 will be adequate.
V+ 1N4004 or similar V1N5817 or similar
VPP
PGND
Acceptable Power Up Sequences 1) VPP or 1) V2) V2) V+ 3) V+ 3) VPP 4) Inputs & Anode 4) Inputs & Anode
Acceptable Power Down Sequences 1) Inputs & Anode or 1) Inputs & Anode 2) V+ 2) VPP 3) V3) V+ 4) VPP 4) V-
Pin Description
VPP V+ VPGND Anode Cathode VIN0 to VIN31 HVOUT0 to HVOUT31 High voltage positive supply. Analog low voltage positive supply Analog low voltage negative supply Device ground Anode side of a low voltage silicon diode that can be used to monitor die temperature. Cathode side of a low voltage silicon diode that can be used to monitor die temperature. Amplifie.r inputs Amplifier outpu.ts
3
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HV254 Pin Configuration
100 1 81 80
100-Lead MQFP (top view)
30 31 50
51
Pin Configuration
Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Function HVOUT29 HVOUT28 HVOUT27 HVOUT26 HVOUT25 HVOUT24 HVOUT23 HVOUT22 HVOUT21 HVOUT20 HVOUT19 HVOUT18 HVOUT17 HVOUT16 HVOUT15 HVOUT14 HVOUT13 HVOUT12 HVOUT11 HVOUT10 HVOUT9 HVOUT8 HVOUT7 HVOUT6 HVOUT5 Pin # 26 27 28 29 30 31 32 33 34 35 36 37 38 39* 40 41 42 43 44 45 46 47 48 49 50 Function HVOUT4 HVOUT3 HVOUT2 HVOUT1 HVOUT0 NC NC NC NC NC VPP VPP NC Ibias NC VVAnode Cathode V+ V+ NC PGND VIN0 VIN1 Pin # 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 Function VIN2 VIN3 VIN4 VIIN5 VIN6 VIN7 VIN8 VIN9 VIN10 VIN11 VIN12 VIN13 VIN14 VIN15 VIIN16 VIN17 VIN18 VIN19 VIN20 VIN21 VIN22 VIN23 VIN24 VIN25 VIN26 Pin # 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Function VIN27 VIN28 VIN29 VIN30 VIN31 PGND NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC HVOUT31 HVOUT30
* For internal testing only. Leave floating. NC=No Connect.
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HV254 Pad Configuration (Not Drawn to Scale)
HVOUT31 HVOUT30 HVOUT29 HVOUT28 HVOUT27 HVOUT26 HVOUT25 HVOUT24 HVOUT23 HVOUT22 HVOUT21 HVOUT20 HVOUT19 HVOUT18 HVOUT17 HVOUT16 HVOUT15 HVOUT14 HVOUT13 HVOUT12 HVOUT11 HVOUT10 HVOUT 9 HVOUT 8 HVOUT 7 HVOUT 6 HVOUT 5 HVOUT 4 HVOUT 3 HVOUT 2 HVOUT 1 HVOUT 0
PGND VIN31 VIN30 VIN29 VIN28 VIN27 VIN26 VIN25 VIN24 VIN23 VIN22 VIN21 VIN20 VIN19 VIN18 VIN17 VIN16 VIN15 VIN14 VIN13 VIN12 VIN11 VIN10 VIN9 VIN8 VIN7 VIN6 VIN5 VIN4 VIN3 VIN2 VIN1 VIN0
Cathode
Anode
5
PGND
V-
V-
V+
VPP
VPP
V+
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HV254
Die Size=4800m X 11180m (including scribes) Center of the die is 0,0. Coordinates for the four corners of the chip (not including scribe):
Notes: 1) The two PGND pads are not electrically connected. 2) The two V PP pads, V+ pads, and V- pads are electrically connected. 3) Backside potential is VPP. Leave floating or connect to V PP. 4) Anode and Cathode are connected to the P and N terminals (respectively) of a silicon diode which can be used to measure temperature.
X (m) -2402 -2402 2335 2335
Y (m) 5492 -5492 5492 -5492
Pad Description
VPP V+ VVIN0 to VIN 31 HVOUT0 to HVOUT31 PGND Anode Cathode High voltage positive supply. Two VPP pads. Low voltage positive supply. Two V+ pads. Low voltage negative supply. Two V- pads. Amplifier inputs. Amplifier outputs. Power ground. Two PGND pads. Need to be externally connected together. Anode side of diode. Cathode side of diode.
Pad Coordinates
Pad Name HVOUT31 HVOUT30 HVOUT29 HVOUT28 HVOUT27 HVOUT26 HVOUT25 HVOUT24 HVOUT23 HVOUT22 HVOUT21 HVOUT20 HVOUT19 HVOUT18 HVOUT17 HVOUT16 HVOUT15 HVOUT14 HVOUT13 HVOUT12 HVOUT11 HVOUT10 HVOUT9 HVOUT8 HVOUT7 X (m) -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 Y (m) 5244 4926.5 4609 4291.5 3974 3656.5 3339 3021.5 2704 2386.5 2069 1751.5 1434 1116.5 799 481.5 164 -153.5 -471 -788.5 -1106 -1423.5 -1741 -2058.5 -2376 Pad Name HVOUT6 HVOUT5 HVOUT4 HVOUT3 HVOUT2 HVOUT1 HVOUT0 VPP VPP VVAnode Cathode V+ V+ Pgnd VIN0 VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 VIN8 X (m) -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -1447.5 -2057 -1897 1030.5 1190.5 1350.5 1550.5 1710.5 1870.5 2034.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 Y (m) -2693.5 -3011 -3328.5 -3646 -3963.5 -4281 -4598.5 -4985 -4985 -5018 -5018 -5018 -5018 -5018 -5018 -5018 -4725 -4411 -4097 -3783 -3469 -3155 -2841 -2527 -2213 Pad Name VIN9 VIN10 VIN11 VIN12 VIN13 VIN14 VIN15 VIN16 VIN17 VIN18 VIN19 VIN20 VIN21 VIN22 VIN23 VIN24 VIN25 VIN26 VIN27 VIN28 VIN29 VIN30 VIN31 Pgnd X (m) 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 2156.5 Y (m) -1899 -1585 -1271 -957 -643 -329 -15 299 613 927 1241 1555 1869 2183 2497 2811 3125 3439 3753 4067 4381 4695 5009 5315.5
DOC #: DSFP-HV254
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Package Outlines 100-LEAD MQFP PACKAGE OUTLINE (FG)
0.913 (23.2)
70
0.787 (20.0)
51
0.063 (1.6)
71
50
0.551 (14.0) 0.677 (17.2)
100
31
0.063 (1.6)
1 30
0.0256 (0.65)
0.0118 0.0031 (0.30 0.08)
0.0346 0.0059 (0.88 0.15)
0.1063 0.0079 (2.70 0.20) 0.0067 0.0024 (0.17 0.06) 0.0111 0.013 (2.825 0.325)
Note: Circle (e.g. B ) indicates JEDEC Reference.
Measurement Legend =
Dimensions in Inches (Dimensions in Millimeters)
Doc. #: DSPD-100MQFPFG
A052104
(c)2004 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 222-8888 / FAX: (408) 222-4895 www.supertex.com

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