Ultra-low power electrochemical sensors

NNC_BMS003

The Nine Senses Series BMS003 is an ultra-low power, low-voltage programmable analog front-end sensing (AFE) chip available in 1.5V and 3V versions. The built-in low-noise amplifier effectively suppresses noise and interference to ensure the accuracy and reliability of bioelectric signal extraction. The chip also adopts a high-precision Δ-sigma oversampling AD converter with a maximum oversampling rate (OSR) of 2048. The chip can support three-electrode as well as four-electrode chemical sensors, and can realize accurate quantification of continuous blood glucose signals.

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Features Product parameters Document

Ultra-low power consumption

The innovative and freely configurable design allows the operating bias current and clock frequency of the chip to be determined by configuring the corresponding registers, thus realizing the optimal solution between performance and power consumption.

Wide range of applications

Capable of accurately capturing and resolving tiny biomolecular signals (e.g. glucose, lactic acid, uric acid, ketone bodies, cholesterol, creatinine, etc.) in body fluids such as sweat, saliva, urine, tissue fluids, etc., the chip is suitable for a wide range of medical monitoring scenarios such as continuous glucose monitoring (CGM).

Power-on self-calibration function

Parameters such as bias voltage (error ≤±1mV) of electrochemical sensors can be automatically configured, while current detection is automatically calibrated.

Temperature compensation

Temperature compensation is included in the current acquisition, so there is almost no temperature drift in the temperature range of CGM application.

Product parameters

Category	Parameters	Detail
Operating Parameters	Supply Voltage	1.5V / 3V
	Package and Size	WLCSP （2.4mm × 2.48mm） QFN (2.8mm × 2.8mm)
	ADC Accuracy	16bit
	Acquisition Current Power Consumption	<15μA@1.5V <12μA@3V
	Oversampling rate range	32-2048
	Bias voltage range	0.3-2V
	Bias Voltage Accuracy	10bit
	Sensor Support Resolution	Three electrodes/four electrodes
	Temperature Sensor Precision	±0.5°C
Application		Dynamic glucose monitoring CGM Electrochemical Sensor Sweat Sensor

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Nanochap_NNC_BMS003_Brief

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