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The uCurrent™ provides a solution for the problem of burden voltage on a multimeter. This little-known problem can be a real big issue, even on a "precision" 0.05% multimeter. It also turns your multimeter into a powerful and precise nanoamp level measurement tool.

Thousands are in use all around the world, and it has quickly become the industry standard low-cost tool for low power current measurement in modern low power microcontroller based digital electronics.

The µCurrent™ GOLD is the latest design with greatly improved specs over the original. Improvements have been made in basic accuracy, bandwidth (now you can measure fast changing "sleep" modes), current handling, and an added shorting mode to ensure uninterrupted power to your device under test while changing ranges. The µCurrent can rival 5 1/2 digit multimeters in accuracy, it is truly a precision instrument.

Specifications - µCurrent™ GOLD:

3 Current ranges:

• ± 0-1250mA (20µV / mA burden voltage typical) * switch contact resistance plays a role here. 10µV due to the shunt resistor.

• ± 0-1250µA (10µV / uA burden voltage)

• ± 0-1250nA (10µV / nA burden voltage)

• (NOTE: Higher currents are available by increasing the battery voltage, to a maximum of 5.5V, which would give ±2250mA/2250µA/2250nA maximum)

Output Voltage Units:

• 1mV/mA

• 1mV/µA

• 1mV/nA

Resolution (nA range): 100pA (3.5digit meter), 10pA (4.5 digit meter), 1pA (5.5 digit meter)

Accuracy (typical): <±0.05% on µA and nA ranges, <±0.1% on mA range.

Output Offset Voltage: <50µV (essentially insignificant on 4.5 digit meter)

Bandwidth: >300KHz (-3dB)

Temperature Drift: <10ppm / degC (µA/nA), <15ppm / degC (mA)

Noise: < -90dBV

THD: < -60dB

Battery: CR2032 Lithium coin cell (optional 3 x AAA's)

Battery Life: >50 hours (battery good LED ensures accurate measurement when LED is on). 2.65V cutout voltage.

The TMC261 breakout board is a development board with the dedicated TMC261-PA chip. It is designed to give users the chance to rapidly prototype their applications - making it possible to immediately check how the motor performs with TMC chips while developing the application's software.

• Config via SPI, control via step/direction

• Optional cooling from bottoms ide

• Optional electrolyte cap at supply rail

• Board width 1.5", board height 1.0"

• 2x10 pin 0.1" header rows for pins/connectors

The EVAL-SCS002V1 shows minimum USB-C sink implementation. It can be uses as a small footprint reference design for fast migration of any USB mini-B, micro-B or STD-B application to USB-C.

It is based on the STUSB4500L USB controller IC and is certified as “Power Sinking Device” (TID #1455)

A status LED indicates the current output on the VSNK:

• Blue = Defalut Source

• Blue + Red = Source 1.5 Amp

• Blue + Green = Source 3 Amp