Water Sensor Interface ASICs

BA112

Name: BA112 Wide-range Dual-channel TDS & Temperature ASIC
Brand: AtomBit

Wide-range Dual-channel TDS & Temperature ASIC

Wide-range dual-channel TDS and temperature ASIC with probe diagnostics, two-point calibration and automatic BURST mode.

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Key Specifications

Interface: UART, 9600 bps; automatic BURST mode
Supply: 3.3 V or 5 V; ripple <20 mV; current <3 mA
Measurement Range: 0–10000 ppm TDS, dual channel

Product capabilities

Evaluate the capabilities that matter in your system

A newer wide-range dual-channel TDS ASIC with probe-status diagnostics, bipolar drive and application calibration commands. It is designed for appliances that need both broader range and better diagnostic coverage.

Two TDS and two temperature channels

0–10000 ppm range: below 2% F.S. from 0–2000 ppm and below 5% F.S. from 2000–10000 ppm.

0–10000 ppm wide-range measurement

Two TDS and two temperature channels; -10–100 °C with ±0.5 °C reference accuracy.

Suspended-probe and NTC open/short diagnostics

3.3 V or 5 V supply, below 3 mA; UART 9600 bps in SOP14.

Bipolar drive and two-point calibration

Detects suspended probes and NTC open/short conditions; supports two-point calibration and automatic BURST operation.

Overview

Product overview

BA112 integrates two TDS channels, two temperature channels, bipolar probe drive, suspended-probe and NTC fault detection, two-point calibration, UART control and automatic BURST operation for wide-range appliance designs.

Engineering notes

Selection and system integration

010–10000 ppm range: below 2% F.S. from 0–2000 ppm and below 5% F.S. from 2000–10000 ppm.
02Two TDS and two temperature channels; -10–100 °C with ±0.5 °C reference accuracy.
033.3 V or 5 V supply, below 3 mA; UART 9600 bps in SOP14.
04Detects suspended probes and NTC open/short conditions; supports two-point calibration and automatic BURST operation.

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; automatic BURST mode
Supply: 3.3 V or 5 V; ripple <20 mV; current <3 mA
Measurement Range: 0–10000 ppm TDS, dual channel
Accuracy: <2% F.S. at 0–2000 ppm; <5% F.S. at 2000–10000 ppm
Temperature: -10–100 °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
Use identical probes on both channels and separate them by at least 0.5 m in the same water.
02
Use the official calibration commands when integrating probes other than the matched BA01 probe.
03
Verify supply and digital levels for the chosen 3.3 V or 5 V system.

Public documents

Datasheets and product documents

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

PDF

Product documentBA112 中文规格书Download file ↓

BA112

Wide-range Dual-channel TDS & Temperature ASIC