Gain full insight into what drains the battery throughout the product development cycle. Foresee pitfalls and avoid firefighting.
Otii Arc, power analyzer and power supply, comes with the featured-packed free standard Otii software.
Made for hardware, firmware and software developers.
Otii Arc is truly versatile. It is a 2 quadrant source measure unit (SMU) with a constant voltage or constant current source and sink together with a high precision multichannel multimeter.
Set it up as a constant, linear power supply. Use it as a power analyzer or profiler to record and display real-time currents, voltages and/or UART logs. It provides nA resolution current measurements with a sample rate up to 4 ksps.
Powerful and easy-to-use desktop application for Ubuntu, Windows & macOS. Collect and analyze data from Otii Arc and export the data to popular formats.
Powerful and easy-to-use desktop application for Ubuntu, Windows & macOS. Collect and analyze data from Otii Arc and export the data to popular formats.
From unpacking Otii Arc to measurement in less than 1 minute. Download Otii app, connect Otii Arc via USB to your computer, start the app and you are ready to start your next measurement project.
Power it by USB for portability, or by using an external DC-adapter.
Otii Arc measures 10,9cm x 14,4cm x 4,4cm (WxLxH) and weighs 450 grams. It is designed for the office, the lab, and usage at home, as well as field measurements. Also, the innovative mechanical design allows for efficient heat dissipation, hence no fan needed and therefore no noise.
Otii Arc measures 10,9cm x 14,4cm x 4,4cm (WxLxH) and weighs 450 grams. It is designed for the office, the lab, and usage at home, as well as field measurements. Also, the innovative mechanical design allows for efficient heat dissipation, hence no fan needed and therefore no noise.
Measure accurately over 8 orders of magnitude from 5 amps down to tens of nanoamps with the wide dynamic range of Otii Arc. Display and work with accurate visualization of the active and sleep modes in one and the same screen and project.
Check the statistics of the accumulated energy consumption continuously while recording. You can also select a part of the recording – while recording, or afterwards – to see the statistics for the selected part.
Check the statistics of the accumulated energy consumption continuously while recording. You can also select a part of the recording – while recording, or afterwards – to see the statistics for the selected part.
Perform quick battery life estimations taking into account both active and idle consumption of your device. The consumption can either be entered directly, or imported from a measurement performed with Otii Arc.
In the new version of the battery life calculator you can now apply battery discharge and safety margin to get a more realistic battery life calculation.
Connect your device UART to Otii Arc’s expansion port RX/TX (TX from your device to RX on Otii Arc and vice versa). The UART logs recorded are synced to the current and voltage graphs making it easy to correlate power consumption to the application state.
Connect your device UART to Otii Arc’s expansion port RX/TX (TX from your device to RX on Otii Arc and vice versa). The UART logs recorded are synced to the current and voltage graphs making it easy to correlate power consumption to the application state.
To see the impact of the software and/or hardware improvements that you have done to your device during development, as for example part of regression testing, you can add new recordings to previously saved Otii projects to easily compare the energy consumption profiles.
Crop your data using the selection tool. All data, in all measurements and channels, outside the selection will be deleted. Easily choose what recording(s) the downsample should be performed on, and the downsample ratio. The downsample function makes an average of the sample values and removes the samples in-between.
Crop your data using the selection tool. All data, in all measurements and channels, outside the selection will be deleted. Easily choose what recording(s) the downsample should be performed on, and the downsample ratio. The downsample function makes an average of the sample values and removes the samples in-between.
Supply and measure a device and at the same time measure voltage and current consumption for a subsystem of the device, by means of the ADC pins in the Otii Arc expansion port.
Monitor the input and output status of the Otii Arc.
MAIN V: The voltage at the main outlet; MAIN I: The measured current from the main outlet; VBUS: Measured VBUS voltage in the Otii Arc; VDC: DC barrel plug voltage; SENSE+: Voltage on SENSE+ pin; SENSE-: Voltage on SENSE- pin; TEMP: Otii Arc internal temperature.
Monitor the input and output status of the Otii Arc.
MAIN V: The voltage at the main outlet; MAIN I: The measured current from the main outlet; VBUS: Measured VBUS voltage in the Otii Arc; VDC: DC barrel plug voltage; SENSE+: Voltage on SENSE+ pin; SENSE-: Voltage on SENSE- pin; TEMP: Otii Arc internal temperature.
Use Sense pins in the Otii Arc expansion port to monitor the voltage rails of your device (for example 1.8 V and 3.3 V rails). Use them also for a four-wire measurement, which compensates for voltage drop in your cables. Note, four-wire measurement only available with Battery Toolbox (during profiling) or with Automation toolbox (during scripting).
There are two GPIs (General Purpose Input) and two GPOs (General Purpose Output). With the GPIs it is possible to see the logical state for two signals. The GPI and GPO voltage is in relation to the DGND pin on the expansion port.
There are two GPIs (General Purpose Input) and two GPOs (General Purpose Output). With the GPIs it is possible to see the logical state for two signals. The GPI and GPO voltage is in relation to the DGND pin on the expansion port.
Measure with multiple Otii Arcs. Connect several Otii Arcs to the same computer, control and measure individually.
Share Otii files with your customers, colleagues and suppliers. Download Otii application for free and use it to open the Otii files, and view the measurement and work with them (crop, mark, move, read stats). Add new measurements in the same project by connecting Otii Arc and your set-up.
Share Otii files with your customers, colleagues and suppliers. Download Otii application for free and use it to open the Otii files, and view the measurement and work with them (crop, mark, move, read stats). Add new measurements in the same project by connecting Otii Arc and your set-up.
Min | Unit | Max | |
---|---|---|---|
Operating Environment | |||
Operating environment | 15 °C / 60 °F | 25 °C / 77 °F | |
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 current | 250 mA | ||
External 7.5 – 9 V 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 current, max continuous(3) | 2.5 A | ||
Output current, max peak(3) | 5 A | ||
Programmable Current Sink (requires an Otii Battery Toolbox license) | |||
Sink current | 0 A | 2.5 A | |
Sink current, resolution | 39 µA | ||
Sink voltage, USB power supply | 0.85 V(4) | 4.2 V | |
Sink voltage, external power supply | 0.85 V(4) | 5.0 V | |
Current measurement | |||
Accuracy | ±(0.1% + 50 nA)(5) | ||
Sample Rate in ±19 mA range | 4 ksps | ||
Sample Rate in ±2.7 A range | 1 ksps | ||
Sample Rate in ±5.0 A range | 1 ksps | ||
Analog bandwidth (3 dB) | 400 Hz | ||
Voltage measurement | |||
Total accuracy | ±(0.1% + 1.5 mV) | ||
Sample Rate | 1 ksps | ||
UART | |||
Bitrate | 110 bps | 5.25 Mbps | |
Digital I/O; GPO1, GPO2, TX(6) | |||
VIO Expansion port operating voltage | 1.2 V | VIO(7) | 5 V(8) |
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+ (9) | |||
Voltage input | 0 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 | 0 V | 5 V | |
Resolution | 1.25 mV | ||
Accuracy | ±(0.1% + 7.5 mV) | ||
Input impedance | 830 kΩ | ||
SENSE, pins SENSE- and SENSE+ | |||
Voltage input | 0 V | 5 V | |
Resolution | 1.5 mV | ||
Accuracy | 1% | ||
Input impedance | 1 MΩ |
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