embedded processors controllers

BL0940

Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the BL0940 family does

The BL0940 is a built-in clock, no-calibration metering chip from Shanghai Belling. It operates on a single supply of 3.0 to 30 V and features a 1.3 MHz gain bandwidth. The device draws 375 uA per amplifier and supports RMS current and voltage measurements. It is designed for active power metering, leakage detection, and phase angle calculation. This chip eliminates the need for external calibration components, simplifying system design for energy monitoring applications.

Next step
Start building with BL0940 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
01 — Key specifications

BL0940 datasheet parameters

ParameterMinTypMaxConditionsSource
supply voltage range 3 V — 3.6 V Belling datasheet, p. 11 — 1.7.1 电参数性能
operating temperature -40 °C — 85 °C 1.7.2 极限范围 Belling datasheet, p. 12 — 1.7.2 极限范围
clock frequency — 4 MHz — Belling datasheet, p. 5
03 — Alternatives

Closest matches to BL0940

ATtiny13A-MMF 2.0× lower clock frequency, 1.9× higher operating temperature, 1.1× higher supply voltage range
ATtiny1616 1.6× lower clock frequency, 1.4× higher operating temperature, 1.1× higher supply voltage range
CH32V203C6T6 2.0× higher clock frequency, similar operating temperature, similar supply voltage range
EZR32HG220 1.8× lower supply voltage range, 1.8× higher clock frequency, similar operating temperature
EZR32HG220F32R55G 1.8× lower supply voltage range, 1.8× higher clock frequency, similar operating temperature
GD32F103RFT6 1.6× higher clock frequency, similar operating temperature, similar supply voltage range
GD32F303CCT5 1.4× higher operating temperature, 1.3× lower clock frequency, similar supply voltage range
GD32F303CCT6 1.3× lower clock frequency, similar operating temperature, similar supply voltage range
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