Vishay Intertechnology, Inc.（NYSE 股市代号：VSH）推出八款面向高精度仪表应用的新型高频、低电荷注入模拟多路复用器与开关。这些产品还是同类器件中首批除标准 TSSOP 与 SOIC 封装外还提供采用 1.8mm×2.6mm 无引线微型 QFN 封装的器件。
四款新型模拟多路复用器与四款新型模拟开关将 0.5pC～1.0pC的超低电荷注入、2pF 及 3pF 的低开关电容、0.25nA～5nA 的漏电流及 66Ω～72Ω 的典型导通电阻完美结合在一起。
它们的规格使这些器件非常适用于高频模拟转换、高速多路复用、音视频路由、滤波、增益与频率选择、电平位移及校准。终端产品将包括高精度仪表、工业控制、医疗仪器、电信与数据通信设备、自动化测试设备 (ATE) 及高速通信系统。
新型多路复用器产品包括 4 信道 DG604、双路 4 信道 DG4052A、8 信道 DG4051A及三路 2 信道 DG4053A。新型模拟开关产品为四路 SPST DG611A, DG612A, 及DG613A，与业界标准 DG611相比，这些产品可提供更出色的电荷注入、导通电阻及待机电流，同时无需 VL 引脚。新型 DG636可用作双路 SPDT 模拟开关或双路 2:1 多路复用器。
日前推出的所有这些器件均可通过 +2.7V～+12V 的单电源或 ±2.5V～±5.0V 的双电源运行。它们的电压全部规定为 +3V、+5V 及 ±5V。当从 +5V 或 ±5V 电源运行时，所有控制逻辑输入均确保了 2V 逻辑上限，当通过 3V 电源运行时，这些控制逻辑输入均具有低压逻辑兼容性。
这些多路复用器及开关均能够同样出色地在两个方向上进行导电，并可进行轨至轨模拟信号处理。这些器件具有 -40°C～+125°C 的更宽泛工作温度范围，并且采用多种封装，包括 14 与 16 引线 TSSOP 封装、16 引脚窄型 SOIC 封装以及节省空间的微型 QFN 封装。
Vishay Releases New Analog Multiplexers and Switches With Ultra-Low Charge Injection Less Than 1.0 pC and Low Switching Capacitance Under 3 pF for Precision Instrumentation Applications
Eight New Devices Provide Low Leakage Currents From 0.25 nA to 5 nA and Extended Temperature Range From - 40 °C to + 125 °C
Vishay Intertechnology, Inc. (NYSE: VSH) today released eight new high-frequency, low-charge-injection analog multiplexers and switches for precision instrumentation applications. They are also the first devices of their kind to be offered in the leadless 1.8-mm by 2.6-mm miniQFN package, in addition to the standard TSSOP and SOIC packages.
The four new analog multiplexers and four new analog switches combine an ultra-low charge injection from 0.5 pC to 1.0 pC, low switch capacitance of 2 pF and 3 pF, leakage currents from 0.25 nA to 5 nA, and typical on-resistance from 66 Ω to 72 Ω.
Their specifications make them ideal for high-frequency analog switching, high-speed multiplexing, audio and video routing, filtering, gain and frequency selection, level shifting, and calibration. End products will include precision instrumentation, industrial controls, medical instrumentation, telecom and datacom equipment, automated test equipment (ATE), and high-speed communications systems.
The new multiplexer offering includes the 4-channel DG604, the dual 4-channel DG4052A, the 8-channel DG4051A, and the triple 2-channel DG4053A. The new analog switches are the quad SPST DG611A, DG612A, and DG613A, which offer improved charge injection, on-resistance, and standby current compared to the industry-standard DG611, while eliminating the need for a VL pin. The new DG636 can be used as a dual SPDT analog switch or dual 2:1 multiplexer.
All of the devices released today are designed to operate from a +2.7-V to +12-V single supply, or from ± 2.5-V to ± 5.0-V dual supplies. They are fully specified at + 3 V, + 5 V, and ± 5 V. All control logic inputs have guaranteed 2-V logic high limits when operating from + 5-V or ± 5-V supplies, and are low-voltage logic compatible when operating from a 3-V supply.
The multiplexers and switches conduct equally well in both directions and offer rail-to-rail analog signal handling. They feature an extended operating temperature from -40 ° C to +125 ° C, and are available in a variety of packages, including the 14- and 16-lead TSSOP, 16-pin narrow SOIC, and the space-saving miniQFN.