Two types of 8-channel DACs, providing 16-bit and 14-bit resolution
Two types of 24-bit ADCs, 2-wire interface adopted

The three major domestic mobile carriers launched the world's first commercial 5G service on the 1st. The 5G service, which is first applied to industrial sites, is scheduled to be made available to consumers next March as 5G devices are officially released into the market.

5G services, which will drive the explosive growth of IoT and IIoT, are already ready to bring winds of change to various fields. Accordingly, market expectations for sensors are also changing.

The use of sensors is increasing at every stage of various fields, including production, operations, and management, and customers want sensors to be smaller, more accurate, and have more functions.
Accordingly, Texas Instruments announced on the 7th that it is launching four ultra-small precision data converter IC products. Developers can use these new products to increase functional density and reduce system board space.

The DAC80508 and DAC70508 are 8-channel precision digital-to-analog converters that provide 16-bit and 14-bit resolution, respectively. In addition, the ADS122C04 and ADS122U04 are 24-bit precision analog-to-digital converters that provide a 2-wire I2C compatible interface and a 2-wire UART compatible interface, respectively.

These four new products, added to the precision ADC and DAC portfolio, are suitable for ultra-small, low-power, high-performance applications, including industrial, telecommunications, and personal electronics. These include optical modules, field transmitters, battery-powered systems, building automation, and wearable devices.

The DAC80508 and DAC70508 are small but achieved outstanding performance.

Both DACs integrate an internal 2.5V 5ppm/℃ reference, eliminating the need for an external precision reference. They are available in 2.4mm x 2.4mm DSBGA and WCSP packages, as well as a 3mm x 3mm QFN-16 package, making them up to 36% smaller than competing products. This allows for reduced board size or increased channel density while maintaining high system accuracy.

The two DACs, featuring 1 LSB (least significant bit) INL (integral nonlinearity), offer high accuracy with 16-bit and 14-bit resolutions, providing up to 66% better linearity compared to competing products. They are also highly durable, operating over a temperature range of -40°C to 125°C and providing a CRC (cyclic redundancy interface) function to enhance system reliability.

The same applies to ADS122C04 and ADS122U04.

Two 24-bit ADCs are available in 3mm x 3mm WQFN-16 and 5mm x 4.4mm TSSOP-16 packages. Both products adopt a 2-wire interface, requiring fewer digital isolation channels than the standard 4-wire SPI (serial peripheral interface), which can reduce the overall cost of the isolation system.

Both products can reduce external circuitry by integrating a flexible input multiplexer, a low-noise programmable gain amplifier, two programmable excitation current sources, an oscillator, and a precision temperature sensor. Both also internally incorporate a low-drift 2.048V 5ppm/℃ reference.

In addition, by integrating an internal 2% accuracy oscillator to improve power line cycle noise rejection, high accuracy is achieved even in noisy environments. With a gain of 1 to 128 and low noise of 100 nV, a single ADC can be used to measure both small-signal sensors and a wide input range.

These products, which provide pin-to-pin compatible 16-bit products, offer the flexibility to meet the system requirements desired by developers through performance scaling up or down.

TI provides DAC80508, ADS122C04, and ADS122U04 evaluation modules.