Nuts and Volts - May/June 2018

• The cost-effective PicoLog 1012 and PicoLog 1216 multi-channel voltage loggers; these work as loggers with PicoLog 6 and as 100 kS/s scopes using PicoScope 6.

With its wide range of built-in sensors and connections for optional external sensors, the DrDAQ solves many data acquisition challenges at a budget price.

GENERAL-PURPOSE

P-CHANNEL JFET AMPLIFIER

The LS94 from Linear Integrated Systems is a general-purpose version of the popular LSJ74 series.

The LSJ74 is a world-class option for designers seeking to build ultra-low-noise circuits, but the part currently has limited availability.

Because the LS94 has slightly higher noise and is offered in a single IDSS range ( 2. 6 to 30 mA) versus the multiple IDSS grades of the LSJ74 family, Linear Integrated Systems is able to provide the LS94 at a lower cost and with greater availability. The LSJ74 is currently allocated to OEM audio manufacturers.

The LS94 is the P-Channel complement to the LS190 single N-Channel JFET amplifier, which is a general-purpose version of the LSK170 series.

The high impedance and high gain features of both the LS94 and the LS190 make them ideal for audio, sensor, and instrumentation applications. The surface-mount version is designated SST94.

Available in the TO- 92 package, the LS94 shares the same pin-out as the Toshiba 2SJ74. The SOT89 surface-mount version reduces the overall size of the circuit boards while creating additional packaging options not offered by Toshiba. There is immediate availability for ROHS compliant versions. Features include: • Low Noise • High Input Impedance • High Gain ( 22 ms -Typ)

• Lead-free ROHS Compliant TO- 92

and SOT89 Packages • Complement to the N-Channel LS190 JFET Amplifier Applications include audio, detectors, instrumentation, medical, test and measurement, and sensors. Price is $2.69 each for 1,000+ pieces.

FEATURE-RICH

PICkit 4

To address the needs of debugging processes and enhance the development experience, Microchip Technology, Inc., has introduced the MPLAB® PICkit TM 4 In-Circuit Debugger.

The low cost PICkit 4 in-circuit programming and debugging development tool is meant to replace the popular PICkit 3 programmer by offering five times faster programming; a wider voltage range (1.2-5V); improved USB connectivity;

and more debugging interface options.

In addition to supporting Microchip’s PIC® microcontrollers (MCUs) and dsPIC® Digital Signal Controllers (DSCs), the tool also supports debugging and programming for the CEC1702 family of hardware cryptography-enabled devices.

This low cost programming and debugging solution is ideal for those designing in the eight-bit space, but it is also perfectly suited for 16- and 32- bit development due in part to its 300 MHz, high performance ATSAME70Q21B microcontroller on board.

The benefits of faster programming time are less waiting and better productivity during development. This is especially important when designing with 32-bit microcontrollers with larger memory capacities.