Water Sensor Interface ASICs

BA022

Name: BA022 Dual-channel Conductivity Interface ASIC
Brand: AtomBit

Dual-channel Conductivity Interface ASIC

Integrated dual-channel conductivity front end for multi-point and comparative measurements.

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Key Specifications

Interface: UART, 2400 / 9600 bps, 8N1
Supply: 3.3 V, ripple <20 mV; current <3 mA
Measurement Range: 0–6000 µS/cm, dual channel

Product capabilities

Evaluate the capabilities that matter in your system

A dual-channel conductivity and temperature ASIC for comparative measurements and multi-point water equipment. It combines two probe interfaces, compensation and UART control in SOP14.

Two 0–6000 µS/cm conductivity channels

Two conductivity channels, each covering 0–6000 µS/cm with error below 2% F.S.

Automatic temperature correction from 0–100 °C

0–100 °C temperature measurement with ±0.5 °C reference accuracy.

Bipolar probe drive reduces polarization

3.3 V, below 3 mA; UART 2400 or 9600 bps.

UART-controlled compact reference design

Both channels should use the same probe model and correctly matched NTC resistors.

Overview

Product overview

A dual-channel conductivity and temperature ASIC for comparative measurements and multi-point water equipment. It combines two probe interfaces, compensation and UART control in SOP14.

Integrated dual-channel conductivity front end for multi-point and comparative measurements. • Two 0–6000 µS/cm conductivity channels • Automatic temperature correction from 0–100 °C • Bipolar probe drive reduces polarization • UART-controlled compact reference design • Suitable for RO, hydrogen-water and tap-water equipment

Engineering notes

Selection and system integration

01Two conductivity channels, each covering 0–6000 µS/cm with error below 2% F.S.
020–100 °C temperature measurement with ±0.5 °C reference accuracy.
033.3 V, below 3 mA; UART 2400 or 9600 bps.
04Both channels should use the same probe model and correctly matched NTC resistors.

Technical data

Key Specifications

Use this information for initial selection; confirm final design and purchasing against the current approved datasheet and sample.

Interface: UART, 2400 / 9600 bps, 8N1
Supply: 3.3 V, ripple <20 mV; current <3 mA
Measurement Range: 0–6000 µS/cm, dual channel
Accuracy: < 2% F.S.
Temperature: 0–100 °C, ±0.5 °C

Application readiness

Installation, calibration and validation

Validate the product with real samples, final mechanics and the intended electrical environment before production.

01
Separate probes by at least 1 m when both contact the same water body.
02
Choose the series resistor to suit the conductivity probe and required span.
03
Validate each channel independently before performing inlet/outlet comparison tests.

Public documents

Datasheets and product documents

Documents are based on AtomBit public product information; confirm the current revision before design release.

PDF

Product documentBA022 中文规格书Download file ↓

BA022

Dual-channel Conductivity Interface ASIC