Digital to Analog Converter (DAC) is rarely used as a core component in electronic applications, but plays a crucial role in converting digital signals into accurate analog voltages or currents for controlling motors, sensors, audio systems, instrumentation, and industrial processes. Without high-quality DACs, even the most advanced digital logic cannot produce reliable analog outputs, thereby limiting system performance.
From portable instruments to process control and embedded industrial systems, the performance of DAC directly affects the resolution, accuracy, energy efficiency, and signal integrity of the system.
Choosing the right DAC is not simply about selecting one component and achieving great success. DAC is an active precision device that can interact with analog circuits, microcontrollers, and power supplies. The correct selection of DAC will enhance reliability, minimize time to market, and promote innovative applications.
Adopting a new DAC during the development or product update phase may affect the entire design cycle. These changes may require adjusting PCB layout, updating firmware, and simulating circuits; For specific applications, it may be necessary to recalibrate the setup time, output impedance, or reference voltage characteristics. These upgrade tasks are both time-consuming and costly, and may also pose risks, especially in regulated or high-precision applications.
Multi functional solution
3PEAK solved these design issues through TPC116S1-VR (Figure 1), a single channel 16 bit DAC that provides a multifunctional solution for simplifying integration and promoting innovation in various systems. In addition, the pins and software of this device are compatible with some of the most common DACs today, making it easy to integrate into existing designs, which can shorten development time and reduce costs.
Versatile DACs Offer High Precision and Simplify Integration
Figure 1: TPC116S1-VR and its variants adopt a compact 8-pin MSOP package. (Image source: 3PEAK)
By adopting TPC116S1, high-precision DAC outputs can be obtained for various designs ranging from simple IoT nodes to advanced industrial controls. This single channel DAC device has low system power consumption and provides buffered rail to rail voltage output, allowing for smooth, accurate, and predictable analog signals across the entire power supply range.
3PEAK DAC can provide reliable and accurate analog outputs for various applications:
Factory automation for servo control and valve regulation
Medical equipment used for generating ultrasound waves and infusion pumps
IoT devices for sensor calibration, smooth LED control, and tactile sensing
Automotive systems for battery balancing and motor drive
3-wire serial interface
Thanks to the high reference input resistance, the 3PEAK DAC draws very little current from the reference voltage source, and its guaranteed monotonicity ensures smooth and predictable analog output when the digital input changes. The three wire serial interface of this device supports SPI, QSPI, MICROWIRE, and DSP protocols, with speeds up to 30 MHz, making it easy to integrate into various systems.
TPC116S1 has a built-in power on reset (POR) circuit, which ensures that the DAC output always starts from 0 V and maintains zero potential before the first significant digital input arrives. The device also has a power down mode, which reduces current consumption to only 400 nA at a voltage of 5 V and allows for software selection of output loads during power down. During normal operation, the power consumption of the device is 0.45 mW at a voltage of 5 V.
TPC116S1 integrates a segmented resistor string DAC for precise analog output, a shift register, and a DAC register for managing input digital data. The control logic coordinates these functions, and data loading strictly follows the clock (SCLK) falling edge trigger and the transmission mechanism starting from MSB, ensuring that the update process of analog signals is both accurate and predictable.
12 bit and 14 bit options
In addition to the 16 bit TPC116S1, 3PEAK also offers 12 bit TPC112S1-VR and 14 bit TPC114S1-VR pins and software compatible versions. In this way, designers can flexibly choose the appropriate resolution based on their specific application, achieving a balance between accuracy, power consumption, and system complexity.
All three versions come in an 8-pin MSOP package with a working temperature range of -40 ° C to+125 ° C. This package and temperature rating make the TPC11xS1 series suitable for industrial, automotive, and other environments that require high reliability over a wide temperature range.