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MAX5214：14-/16-Bit, Low-Power, Buffered Output, Rail-to-Rail DACs with SPI Interface

Save Application Power and Board Space with Less than 80µA IQ and 3mm x 5mm, 8-Pin µMAX Package

The MAX5214/MAX5216 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 2.7V to 5.5V 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 80µA (max) and a low offset error of ±0.25mV. 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 5mm), 8-pin µMAX® package and are specified over the -40°C to +105°C extended industrial temperature range.

Key Features Low-Power Consumption (80µA max) 14-/16-Bit Resolution in a 3mm x 5mm, 8-Pin µMAX Package Relative Accuracy ±0.40 LSB INL (MAX5214, 14-Bit typ, ±1 LSB max) ±1.2 LSB INL (MAX5216, 16-Bit typ, ±4 LSB max) Guaranteed Monotonic Over All Operating Ranges Low Gain and Offset Error Wide 2.7V to 5.5V Supply Range Rail-to-Rail Buffered Output Operation Safe Power-On Reset (POR) to Zero DAC Output Fast 50MHz, 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 10kΩ Loads

MAX5214, MAX5216: Typical Operating Circuit Applications/Uses 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

DataSheet

Parametrics

Design kits & evaluation modules

• MAX5216EVKIT
• MAX5216PMB1
• MAXPMBAE
• MAX5216DACLITE
• MAX5216LPT

Quality and Environmental Data

• MAX5214.pdf

Related Products

• MAX5138：Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs
• MAX5141：+3V/+5V, Serial-Input, Voltage-Output, 14-Bit DACs
• MAX5441：+3V/+5V, Serial-Input, Voltage-Output, 16-Bit DACs
• MAX5143：+3V/+5V, Serial-Input, Voltage-Output, 14-Bit DACs
• MAX541：+5V, Serial-Input, Voltage-Output 16-Bit DACs

Ordering Information