MP108FD Apex Microtechnology

MP108 MP108A Power Operational Amplifier FEATURES Low Cost High Voltage - 200V High Output Current - 10A 100W Dissipation Capability 300 kHz Power Bandwidth APPLICATIONS Inkjet Printer Head Drive Piezo Transducer Drive Industrial Instrumentation Reflectometers Ultra-Sound Transducer Drive DESCRIPTION The MP108 operational amplifier is a surface mount constructed component that provides a cost effec- tive solution in many industrial applications. The MP108 offers outstanding performance that rivals much more expensive hybrid components yet has a footprint of only 4 sq in. The MP108 has many optional features such as four-wire current limit sensing and external compensation. The 300 kHz power bandwidth and 10A output of the MP108 makes it a good choice for piezo transducer drive applications. The MP108 is built on a thermally conductive but electrically insulating substrate that can be mounted to a heat sink. Figure 1: Equivalent Schematic +V B 8 +V B 4 14 +V S C R R 1 1 2 Q17 15 +V S R 3 GND 3 16 +V S BPLT 2 Q1A Q1B Q2 C 5 1 TP D1 Q4 Q6 SUBSTRATE R Q3 5 BACKPLATE Q7 Q8 Q9 11 +OUT D2 12 +OUT C C1 5 R 7 R +OUT 15 13 Q14 C C2 6 R 8 Q11 28 +CL Q12 Q13 27 -CL IC1 Q16 20 -OUT R 9 Q15A Q15B -OUT -IN 34 21 R R11 10 22 -OUT Q18 Q19 R 12 R 17 Q22 +IN 33 Q20 Q23 Q24 Q21 GND 32 R19 R20 C3 17 -V S -V 30 B -V 18 S -V -V 19 S B 25 Apex Microtechnology Inc. Oct 2016 www.apexanalog.com All rights reserved MP108U Rev HMP108 MP108A TYPICAL CONNECTION Figure 2: Typical Connection R F +V +V S B * 0.1F 0.1F +V S +V B R I V OUT -CL R CL +CL OUT MP108 C C R C L C -V B C C * Use 10 F per Amp -V S of output current * 0.1F 0.1F -V -V S B 2 MP108U Rev H