Water Sensor Interface ASICs

BA311L

Name: BA311L Wide-range Miniature TDS Interface ASIC
Brand: AtomBit

Wide-range Miniature TDS Interface ASIC

Small SOT23-6 TDS ASIC with a wider range for compact connected appliances.

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Key Specifications

Interface: BURST data output (Tx)
Supply: 3–5 V
Measurement Range: 0–10000 ppm TDS

Product capabilities

Evaluate the capabilities that matter in your system

The extended-range member of the miniature BA311 family. It keeps the SOT23-6 automatic-output architecture while extending the intended TDS range for higher-concentration applications.

0–10000 ppm TDS measurement

Official product-page range: 0–10000 ppm with error below 2% F.S.

Automatic 300 ms measurement cycle

3–5 V wide-voltage supply and automatic measurement approximately every 300 ms.

3–5 V wide-voltage supply

UART Tx-only / BURST-style automatic output in SOT23-6.

Bipolar drive reduces probe polarization

Bipolar probe excitation helps reduce electrode polarization.

Overview

Product overview

The extended-range member of the miniature BA311 family. It keeps the SOT23-6 automatic-output architecture while extending the intended TDS range for higher-concentration applications.

Small SOT23-6 TDS ASIC with a wider range for compact connected appliances. • 0–10000 ppm TDS measurement • Automatic 300 ms measurement cycle • 3–5 V wide-voltage supply • Bipolar drive reduces probe polarization • BURST Tx data output

Engineering notes

Selection and system integration

01Official product-page range: 0–10000 ppm with error below 2% F.S.
023–5 V wide-voltage supply and automatic measurement approximately every 300 ms.
03UART Tx-only / BURST-style automatic output in SOT23-6.
04Bipolar probe excitation helps reduce electrode polarization.

Technical data

Key Specifications

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

Interface: BURST data output (Tx)
Supply: 3–5 V
Measurement Range: 0–10000 ppm TDS
Accuracy: < 2% F.S.
Temperature: External compensation design dependent

Application readiness

Installation, calibration and validation

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

01
Confirm the current BA311L ordering specification before final PCB release.
02
Select a probe geometry appropriate for the higher concentration range.
03
Validate scale and repeatability over the actual water matrix rather than extrapolating from tap-water calibration.

Public documents

Datasheets and product documents

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

PDF

Product documentBA311 / BA311L 系列中文规格书Download file ↓

BA311L

Wide-range Miniature TDS Interface ASIC