Le blog de l'entreprise Mingjiada Electronics Supply TI ADS7142 140kSPS Dual-Channel 12-Bit Nanopower SAR Analog-To-Digital Converter

Mingjiada Electronics Supply TI ADS7142 140kSPS Dual-Channel 12-Bit Nanopower SAR Analog-To-Digital Converter

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of the TI (Texas Instruments) ADS7142, a nanoampere-class, dual-channel, 12-bit successive approximation register (SAR) analogue-to-digital converter. This device supports I²C, automatic monitoring and threshold alarms, and is suitable for battery-powered sensors, portable medical devices, industrial monitoring and IoT terminals. Mingjiada Electronics supports both sample procurement and bulk supply, providing highly integrated solutions for low-power signal acquisition and condition monitoring.

Product Overview:
The ADS7142 is an ultra-low-power, dual-channel, 12-bit SAR ADC launched by TI, featuring an I²C-compatible serial interface and supporting automatic monitoring mode and programmable threshold alarms. Designed for power- and space-constrained applications, this device autonomously samples and compares analogue signals whilst the system’s main controller is in sleep mode or operating at a low duty cycle, thereby helping to reduce overall system power consumption. The ADS7142 features a compact package and a simple peripheral circuit, making it suitable for compact PCB designs.
Compared to traditional ADC solutions that require continuous polling by the host controller, the ADS7142’s automatic monitoring and threshold alarm functions delegate certain monitoring tasks to the ADC itself, reducing the number of times the host is woken up and thereby optimising the energy efficiency of battery-powered systems.

Key Features and Benefits of the ADS7142
Standalone nano-watt-class power sensor monitor suitable for cost-sensitive designs
Small package size: 1.5 mm × 2 mm
Efficient host sleep and wake-up
Autonomous monitoring power consumption of 900 nW
Window comparator for event-triggered host wake-up
Data buffering during host sleep
Independent sensor configuration and calibration
Dual-channel, pseudo-differential or ground-detection input configurations
Programmable thresholds for calibration
Internal calibration improves offset and drift
Error-triggered protection
Programmable thresholds per channel
Programmable hysteresis for noise immunity
Event counter for transient suppression
In-depth data analysis
Data buffering for fault diagnosis
High-precision mode for 16-bit accuracy
One-shot mode for rapid data capture
I²C™ interface
Compatible with a voltage range of 1.65 V to 3.6 V
8 configurable addresses
Up to 3.4 MHz (high-speed)
Wide operating frequency range:
Analogue supply: 1.65 V to 3.6 V
Temperature range: –40 °C to 125 °C

The ADS7142 is suitable for a wide range of low-power, multi-channel signal acquisition and monitoring applications, including:
Battery-powered sensor nodes: wireless sensor networks, environmental monitoring terminals, smart agricultural sensing devices
Portable medical devices: wearable health monitoring, portable diagnostic instruments, low-power vital signs acquisition
Industrial monitoring: equipment condition monitoring, sensor signal acquisition, low-power field instruments
Smart metering: low-power metering and monitoring modules for water, gas and electricity meters, etc.
IoT terminals: IoT sensors, smart home sensing nodes, remote monitoring devices
System auxiliary monitoring: power supply voltage monitoring, analogue out-of-limit alarms for temperature, pressure, etc.

Supply Information
Shenzhen Mingjiada Electronics Co., Ltd. — a long-standing distributor of TI product lines — maintains a constant stock of the ADS7142 series 12-bit successive approximation register analogue-to-digital converters (SAR ADCs) (including models such as ADS7142IRUGR, ADS7142IRUGRG4 and ADS7142IRUGT), and supports sample orders, small-batch purchases and full-reel supply. To confirm specific part numbers, stock levels and real-time prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.
Tags: ADS7142IRUGR, ADS7142IRUG, ADS7142IRU, ADS7142IR, ADS7142I, ADS7142