MAX5214, MAX5216 14-/16-Bit, Low-Power, High-Performance, Buffered Single DACs - Maxim Integrated Products - #1

Text version of the page

________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. MAX5214/MAX5216 14-/16-Bit, Low-Power, High-Performance, Buffered Single DACs 19-5651; Rev 0; 12/10 General Description 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 5.25V supply voltage range. Power consumption is extremely low to accommodate most low-power and low-voltage applications. These devices feature a 3-wire SPIK-/QSPIK-/MICROWIREK-/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 80FA (max) and a low offset error of Q0.25mV. A zero level applied to the 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 FMAX® package and are specified over the -40NC to +105NC extended industrial temperature range. Applications 2-Wire Sensors Communication Systems Automatic Tuning Gain and Offset Adjustment Power Amplifier Control Process Control and Servo Loops Portable Instrumentation Programmable Voltage and Current Sources Automatic Test Equipment Features S Low-Power Consumption (80ìA max) S 14-/16-Bit Resolution in a 3mm x 3mm, 8-Pin ìMAX Package S Relative Accuracy ±0.25 LSB INL (MAX5214, 14-Bit) ±1.0 LSB INL (MAX5216, 16-Bit) S Guaranteed Monotonic Over All Operating Ranges S Low Gain and Offset Error S Wide 2.7V to 5.25V Supply Range S Rail-to-Rail Buffered Output Operation S Safe Power-On Reset (POR) to Zero DAC Output S Fast 50MHz, 3-Wire, SPI/QSPI/MICROWIRECompatible Serial Interface S Schmitt-Trigger Inputs for Direct Optocoupler Interface S Asynchronous CLR Clears DAC Output to Code 0 S High Reference Input Resistance for Power Reduction S Buffered Voltage Output Directly Drives 10kI Loads Note: All devices are specified over the -40°C to +105°C operating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. Ordering Information SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. ìMAX is a registered trademark of Maxim Integrated Products, Inc. Functional Diagram PART PIN-PACKAGE RESOLUTION (BITS) MAX5214GUA+ 8 FMAX 14 MAX5216GUA+ 8 FMAX 16 SERIAL-TOPARALLEL CONVERTER INPUT REGISTER DAC REGISTER CLR POR 14-/16-BIT DAC BUFFER CS SCLK DIN GND OUT MAX5214 MAX5216 VDD REF