Water Sensor Interface ASICs

BA234

Name: BA234 Multi-parameter Sensor Interface ASIC
Brand: AtomBit

Multi-parameter Sensor Interface ASIC

Single-channel, two-probe interface ASIC with NTC compensation and UART digital output.

Downloads

Key Specifications

Interface: UART, 9600 bps
Supply: 3.3 V ±0.3 V
Measurement Range: Probe and parameter dependent

Product capabilities

Evaluate the capabilities that matter in your system

A configurable conductivity signal-processing ASIC that integrates probe excitation, acquisition, amplification, filtering, temperature compensation and digital output. It is intended for designs that need more flexibility than a fixed-range appliance ASIC.

Single-channel two-probe measurement

Single-channel, two-probe measurement with bipolar pulse excitation.

Automatic NTC temperature compensation

3.3 V ±0.3 V supply, approximately 1 mA operating current and UART 9600 bps.

Bipolar pulse excitation

Automatic NTC temperature compensation and digital control ports.

Simple control commands

QFN32 package; the achievable range and accuracy depend on probe and calibration configuration.

Overview

Product overview

Single-channel, two-probe interface ASIC with NTC compensation and UART digital output. • Single-channel two-probe measurement • Automatic NTC temperature compensation • Bipolar pulse excitation • Simple control commands • UART digital output at 9600 bps

Engineering notes

Selection and system integration

01Single-channel, two-probe measurement with bipolar pulse excitation.
023.3 V ±0.3 V supply, approximately 1 mA operating current and UART 9600 bps.
03Automatic NTC temperature compensation and digital control ports.
04QFN32 package; the achievable range and accuracy depend on probe and calibration configuration.

Technical data

Key Specifications

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

Interface: UART, 9600 bps
Supply: 3.3 V ±0.3 V
Measurement Range: Probe and parameter dependent
Accuracy: Application calibration dependent
Temperature: Automatic NTC compensation

Application readiness

Installation, calibration and validation

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

01
Define the electrode material, cell constant and intended conductivity range before configuring the analog path.
02
Observe low-leakage PCB layout around analog inputs.
03
Build a multipoint calibration using the final probe and target water matrix.

Public documents

Datasheets and product documents

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

PDF

Product documentBA234 中文规格书Download file ↓

BA234

Multi-parameter Sensor Interface ASIC