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The ZS1100A is a precision source meter designed for IOT applications. This tool can be used to accurately estimate the energy consumption of IOT devices. It can plot the current consumption vs time very accurately and in great detail. Some of the features are listed below.
The current profile of a ESP8266 WiFi Module is captured here. The module wakes-up from sleep using an internal timer and GPIO toggling the RESET pin. The GPIO is captured in the bottom chart. The current rises from 16uA to few mA in couple of ms. Then it reaches few 10mA and then few 100mA during the calibration. All of these states are captured in a single range.
This demonstrates the dynamic range, bandwidth, capture length and digital sync feature of the tool. Note how the output voltage remains constant throughout this variation.
|Output voltage range||0 to 6V||Programmable in 10mV steps|
|Output voltage accuracy||Error of 5mV max||Measured with 500mA load|
|Current Measurement range||-0.5A to 1.5A (Linear Range)|
|Current measurement accuracy||1% of measured value +/- 0.2uA||After one time self calibration.|
|Current measurement resolution||< 0.1uA|
|Max Output current||1A constant current||Vout = 5.0V|
|2A with 10% Duty||Measured with 100ms pulse for every 1 second.|
|Load regulation||<1%||0 to 1.5A|
|Measurement bandwidth||300KHz||3dB bandwidth, Single pole RC filter.|
|Step Response||2uS||10% to 90% of full range.|
|Current Sampling rate||1MHz|
|Sampling jitter||10ps||RMS jitter|
|Voltage sampling rate||Once in every 20ms|
|Digital Capture||6 bits at 1Msps|
|Maximum capture length||Tested up to 24 hrs||Limited only by the free space on the HDD.|
|Error Rate||< 1E-12||Less than 1 error in 10^12 samples.|
|Or less than one sample error in 24 hours.|
|Export format||XML, Sigrok|
|< 90% RH|
|Power Consumption||< 2W||USB power < 2W for measurement unit.|
|Load current is supplied by 12-15V DC Adaptor|
|Standard Conformance||CE, FCC, RoHS|