MAX5214/16 - Low-Power, High-Performance, Buffered Single DACs
The MAX5214/MAX5216 from Maxim are pin-compatible, 14-bit and 16-bit Digital-to-Analog Converters (DACs). The MAX5214/MAX5216 are single-channel, low-power, buffered voltage-output DACs.
The devices use a precision external reference applied through the high resistance input for rail-to-rail operation and low system power consumption. The MAX5214/MAX5216 accept a wide 2.7...5.25 V supply voltage range. Power consumption is extremely low to accommodate most low-power and low-voltage applications. These devices feature a 3-wire SPI™-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface to save board space and to reduce the complexity in isolated applications.
The MAX5214/MAX5216 minimize the digital noise feedthrough from input to output with SCLK and DIN input buffers powered down after completion of each serial input frame. On power-up, the MAX5214/MAX5216 reset the DAC output to zero, providing additional safety for applications that drive valves or other transducers that need to be off on power-up. The DAC output is buffered resulting in a low supply current of 80 µA (max) and a low offset error of ±0.25 mV.
A zero level applied to the active-low CLR pin asynchronously clears the contents of the input and DAC registers and sets the DAC output to zero independent of the serial interface. The MAX5214/MAX5216 are available in an ultra-small (3mm x 3mm), 8-pin µMAX® package and are specified over the -40...+105°C extended industrial temperature range.
MAX5214/16 Features
- Low-Power consumption (80 µA max)
- 14-/16-Bit resolution in a 3mm x 3mm, 8-Pin µMAX package
- Relative accuracy:
- ±0.25 LSB INL (MAX5214, 14-Bit)
- ±1 LSB INL (MAX5216, 16-Bit) - Guaranteed monotonic over all operating range
- Low gain and offset error
- Wide 2.7...5.25 V supply range
- Rail-to-Rail buffered output operation
- Safe Power-On Reset (POR) to zero DAC output
- Fast 50 MHz, 3-Wire, SPI/QSPI/MICROWIRE-compatible serial interface
- Schmitt-Trigger inputs for direct optocoupler interface
- Asynchronous active-low CLR clears DAC output to code 0
- High reference input resistance for power reduction
- Buffered voltage output directly drives 10 kΩ loads
MAX5214/16 Applications
- 2-Wire sensors
- Automatic test equipment
- Automatic tuning
- Communication systems
- Gain and offset adjustment
- Portable instrumentation
- Power amplifier control
- Process control and servo loops
- Programmable voltage and current sources
More Information
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Related Documents
Related Products
- Maxim - MAX5214DACLITE Evaluation Kit



