Otii Standard Power Supply and Measure

PRODUCT DETAILS

Built by developers, for developers, Otii addresses the ultimate problem of optimizing for low energy consumption in device and app designs.

The Otii Arc is a small, portable power supply, a current and voltage measurement unit, and a data-acquisition module. Otii Arc is accompanied by an easy-to-use desktop application for Windows, Ubuntu & macOS.

Otii is a proud winner of the 2018 DESIGN&ELEKTRONIK innovator of the year award

Otii for individual developers and small companies

Otii Standard is the recommended solution for individual developers and most small companies. Otii Standard includes the Otii Arc measurement device and the Otii software (standard version).

Otii Arc measurement device

The Otii Arc acts both as a power supply to the IoT device being tested, and as a current and voltage measurement unit. It provides up to 5 V output voltage and runs high-resolution current measurements with a sample rate up to 4 ksps for the range of 1 μA - 5 A.

Read more about the Otii Arc in the tech spec.

Otii software (standard version)

Otii is a powerful and easy-to-use desktop application for Ubuntu, Windows & macOS. Use it to collect and analyze data from the Otii Arc. Otii also exports the data to popular formats.

You can click on the image to see a clearer original image.

	Min	Unit	Max
OPERATING ENVIRONMENT
Operating Environment	15 ºC / 60 ºF		25 ºC / 77 ºF

USB POWER SUPPLY (1)
Output Voltage (auto range)	0.5 V		3.75 V
Output Voltage (locked to High Current range)	0.5 V		4.2 V
Output Voltage Setting Resolution		1 mV
Output Voltage Accuracy		±1%
Output Current		250 mA

EXTERNAL 7.5-9V POWER SUPPLY (2)
Output Voltage (auto range)	0.5 V		4.55 V
Output Voltage (locked to High Current range)	0.5 V		5.0 V
Output Voltage Setting Resolution		1 mV
Output Voltage Accuracy		±1%
Output Current, max continuous (3)		2.5 A
Output Current, max peak (3)		5.0 A

PROGRAMMABLE CURRENT SINK
Sink current	0 A		2.5 A
Sink current, resolution		39 µA
Sink voltage, USB power supply	0.85V (4)		4.2 V
Sink voltage, external power supply	0.85V (4)		5.0 V

CURRENT MEASUREMENT
Accuracy		±(1% + 0.5 µA)
Sample Rate in ±19 mA range		4 ksps
Sample Rate in ±2.7 A range		1 ksps
Sample Rate in 0 – 5 A range		1 ksps
Analog Bandwidth (3dB)		400 Hz

VOLTAGE MEASUREMENT
Total accuracy		±(1% + 10 mV)
Sample Rate		1 ksps

UART
Bitrate	110 bps		5.25 Mbps

DIGITAL I/O; GPO1, GPO2, TX (5)
VIO Expansion Port Operating Voltage	1.2 V	VIO(6)	5 V(7)
VIL Low-level input voltage			VIO * 0.2 V
VIH High-level input voltage	VIO * 0.8 V
Imax Maximum sink/source current			10 mA

ADC, Differential Analog/Digital Conversion pins ADC-, ADC+ (8)
Voltage input	O V		5 V
Shunt Voltage Range	-81.9175 mV		81.2 mV
Resolution		2.5 µV
Accuracy		±(0.1% + 10 µV)
Input Impedance		220 kΩ

ADC, Single Ended Analog/Digital Conversion pin ADC+
Voltage input	O V		5 V
Resolution		1.25mV
Accuracy		±(0.1% + 7.5 mV)
Input Impedance		830 kΩ

SENSE, pins SENSE- and SENSE+
Voltage input	O V		5 V
Resolution		1.5mV
Accuracy		1%
Input Impedance		1MΩ

1) USB power capacity and reliability in laptops and desktops greatly depend on host USB port/cable design. 2) See list of recommended external power supplies and powered USB hubs at www.otii.com/FAQ 3) Depends on chosen power supply. Otii Arc will monitor internal temperature and cut off if temperature limit is reached. 4) Sink voltage can go below this specification if locked to high range. It is possible to go down to 0.5V if the sink current is below 1.9A. For currents below 19mA, the measurement will have a lot more noise when locked to high range than in auto range. 5) See Nexperia SN74LVC8T245 for details. 6) Expansion Port Digital voltage level is set by user in Otii SW. 7) Maximum voltage will depend on your USB power supply and USB cable. 8) See TI INA226 for details.

Part List：

1 x Otii Standard

1 x Micro USB Cable

ECCN/HTS

HSCODE	90308490
UPC

LEARN AND DOCUMENTS

Documentations

Otii Tech Specification

See the list of standard features in the Otii software listed below.

Learn

REVIEWS

Write Your Own Review

Only registered users can write reviews. Please Sign in or create an account