Microchip HV2918模拟开关评估方案

Microchip公司的HV2918模拟开关评估板(EV19W62A)和HV MUX控制器板(ADM00825)一起工作,提供了没有高压偏压,低谐波失真,32路高压模拟开关演示,包括基本的开关的开/断操作. 评估板还包括2:1 MUX,以从两个内置的MD1822和TC6320脉冲电路发送±100V高压脉冲突发.HV2918评估板能控制HV2918器件和内置脉冲器,它通过HV MUX控制器板和GUI连接到演示板的两个2:1 MUX开关. 两个2:1 MUX开关的四个开关输出(SW引脚)有SMA连接器,用它用户可连接四个换能器元件.2:1 MUX的另以边(Y引脚)连接到两个内置MD1822和TC6320脉冲器的输出. HV2918模拟开关评估板能以5MHz ±100V脉冲信号驱动四个换能器元件.评估板具有一个HV2918/R4X 9 x 9 x 0.9 mm 64引脚 VQFN封装集成电路,两个MD1822K6-G 3 x 3 x 1 mm 16引脚QFN集成电路和四个TC6320K6-G 4 x 4 x 1 mm 8引脚DFN封装NMOS和PMOS对集成电路.主要用在医疗超声图像,驱动压电传感器和打印机.本文介绍了HV2918器件简短概述和HV2918模拟开关评估板主要特性和技术指标,简化框图,电路图,材料清单和PCB设计图.

The HV2918 Analog Switch Evaluation Board (EV19W62A) works with the Microchip

HV MUX Controller Board (ADM00825) to provide no high-voltage bias, low harmonic

distortion, 32-channel, high-voltage analog switch demonstration, including basic switch on/off operation. The boards also include 2:1 MUX operation to transmit ±100V high-voltage pulse burst from two built-in MD1822 and TC6320 pulser circuits.

The HV2918 Analog Switch Evaluation Board can control the HV2918 device and built-in pulsers that are connected to the two 2:1 MUX switches for demonstration through the HV MUX Controller Board and GUI. Four switch outputs (SW pins) from two 2:1 MUXes have SMA connectors to which the user can connect four transducer elements. The other side of the 2:1 MUX (Y pins) is connected to the outputs of two built-in MD1822 and TC6320 pulsers. The HV2918 Analog Switch Evaluation Board can drive four transducer elements with 5 MHz, ±100V pulse signals.

The HV2918 Analog Switch Evaluation Board features one ...