MD1820 Supertex, Inc., MD1820 Datasheet
MD1820
Related parts for MD1820
MD1820 Summary of contents
Page 1
... P- and N-channel MOSFETs for medical ultrasound applications and other applications requiring a high output current for a capacitive load. The high-speed input stage of the MD1820 can operate from a 1.8 to 5.0V logic interface with an optimum operating input signal range of 1.8 to 3.3V. An adaptive threshold circuit is used to set the level translator switch threshold to the average of the input logic 0 and logic 1 levels ...
Page 2
... DD -4.0 V --- DD - µA No input transitions µ input transitions µ One channel on at 5.0Mhz, No load - 0.3 V For logic inputs INA, INB, INC, and IND 1.0 µA 1.0 µA 5.25 V 0.3 V For logic input PE - KΩ ● Tel: 408-222-8888 ● www.supertex.com MD1820 ...
Page 3
... Logic input edge speed ns requirement - 1000pF, see timing LOAD diagram - ns Input signal rise/fall time 2.0ns - For each channel - Device to device delay match V = 1.7 ~ 5.25V µ 7.5 ~ 11.5V DD µs - Output High ● Tel: 408-222-8888 ● www.supertex.com MD1820 L ...
Page 4
... SUB GND ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 4 OUTA OUTB OUTC OUTD VDD VH VSS OUTA VDD VSS VL VH VDD VSS OUTB VDD VSS VL VH VDD VSS OUTC VDD VSS VL VH VDD VSS OUTD VDD VSS VL ● Tel: 408-222-8888 ● www.supertex.com MD1820 ...
Page 5
... OUTB Supertex TC6320 OUTC OUTD VSS VL -5.0V 0.47μF Supertex Supertex MD1820 TC2320 ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 5 +100V 0.1µF To Piezoelectric Transducer -100V 0.1µF +100V 0.1µF To Piezoelectric Transducer -100V 0.1µF +100V 0.1µF To Piezoelectric Transducer -100V 0.1µF ● Tel: 408-222-8888 ● www.supertex.com MD1820 ...
Page 6
... GND to PE, where PE is 1.8 to 5.0V. Good trace practices should be followed corresponding to the desired operating speed. The internal circuitry of the MD1820 is capable of operating up to 100MHz, with the primary speed limitation being the loading effects of the load capacitance. Because of this speed and the high transient currents that result with capacitive loads, the bypass capacitors should be as close to the chip pins as possible ...
Page 7
... MD1820 Delay vs Temperature PHL PLH 4 3 -50 0 Temperature ( MD1820 Delay PHL PLH Voltage (V) DD Pin Description Pin # Function 1 INB 2 VDD 3 VSS 4 INC 5 IND 6 GND OUTC 9 OUTD 10 OUTA 13 OUTB ...
Page 8
... No responsibility is assumed for possible omissions and inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications refer to the ©2010 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Doc.# DSFP-MD1820 A110110 e Note 1 (Index Area ...