company blog about TI ADC128S052QCMTX Low-Power Eight-Channel CMOS 12-Bit Analog To Digital Converters

TI ADC128S052QCMTX Low-Power Eight-Channel CMOS 12-Bit Analog To Digital Converters

Product Description Of ADC128S052QCMTX
ADC128S052QCMTX device is a low-power, eight-channel CMOS 12-bit analog-to-digital converter specified for conversion throughput rates of 200 kSPS to 500 kSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to eight input signals at inputs IN0 through IN7.

ADC128S052QCMTX output serial data is straight binary and is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces.

ADC128S052QCMTX may be operated with independent analog and digital supplies. The analog supply (VA) can range from 2.7 V to 5.25 V, and the digital supply (VD) can range from 2.7 V to VA. Normal power consumption using a 3-V or 5-V supply is 1.6 mW and 8.7 mW, respectively. The power-down feature reduces the power consumption to 0.06 µW using a 3-V supply and 0.25 µW using a 5-V supply.

ADC128S052QCMTX is packaged in a 16-pin TSSOP package. The ADC128S052QCMTX is ensured over the extended industrial temperature range of –40°C to +105°C.

ADC128S052QCMTX Technical Data and Performance Specification
As a 12-bit precision analogue-to-digital converter with a resolution of 4096 quantisation levels, the ADC128S052QCMTX meets the needs of most medium-precision applications.The ADC128S052QCMTX supports eight single-ended input channels, which are switched by an internal multiplexer to enable sequential sampling of multi-channel signals. Its sampling rate is flexibly configurable from 200kSPS to 500kSPS, balancing the need for speed and accuracy.

In terms of power management, the ADC128S052QCMTX supports independent analogue and digital power supplies. The analogue power supply (VA) ranges from 2.7V to 5.25V, and the digital power supply (VD) ranges from the same 2.7V to VA voltage. This design allows system engineers to optimise the power supply configuration according to the signal chain requirements, improving overall performance.The ADC128S052QCMTX device achieves a signal-to-noise ratio (SNR) and signal-to-noise-plus-distortion ratio (SINAD) of 73dB, ensuring good signal quality. Integral nonlinearity (INL) is ±1LSB (max) and differential nonlinearity (DNL) is +1.3/-0.9LSB (max) at 5V supply, showing excellent linearity characteristics.

The ADC128S052QCMTX has an input range from 0V to the supply voltage (5.25V max.) and features a single-ended input structure that simplifies the design of front-end signal conditioning circuits. The device's internal supply voltage reference architecture eliminates the need for an external reference voltage source, further reducing system complexity and BOM cost.

Package information for this ADC128S052QCMTX indicates that it is available in a TSSOP-16 package, RoHS compliant, and supports surface mount technology (SMT). This standardised package and packaging approach facilitates automated production and improves manufacturing efficiency.

Applications Of ADC128S052QCMTX
ADC128S052QCMTX has found a wide range of applications in a number of industry sectors thanks to its multi-channel, low-power consumption and medium to high accuracy. In industrial automation systems, it is commonly used to monitor and control various analogue signals such as temperature, pressure, flow and position sensors, etc. The design of the 8 input channels enables the simultaneous acquisition of multiple sensor signals, greatly simplifying the system architecture.

Automotive electronics is another important application area for this device. As an AEC-Q100 Grade-1 certified product, the ADC128S052QCMTX is capable of meeting the stringent temperature requirements of -40°C to +125°C in automotive environments. It can be used in in-car entertainment systems, vehicle diagnostic equipment, battery management systems, and various body control modules. In electric and hybrid vehicles, multi-channel ADCs are particularly important for monitoring parameters such as battery pack voltage, current and temperature.

For medical devices, the ADC128S052QCMTX analogue-to-digital converter is suitable for applications that require the acquisition of bioelectrical signals or sensor signals, such as electrocardiographs, blood pressure monitoring devices, and oximeters. Its low power consumption feature is especially suitable for portable medical devices and helps extend battery life. Base stations and network equipment in communication equipment also often use these ADCs for signal acquisition and processing.

In addition, the ADC128S052QCMTX is widely used in instrumentation applications, such as data acquisition systems, signal analysers, oscilloscopes and other test and measurement equipment. In these applications, the 8-channel design allows simultaneous monitoring of multiple test points, improving test efficiency and system integration.

Simplified Schematic Of ADC128S052QCMTX