MAX5214 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – 14-/16-Bit, Low-Power, High-Performance, Buffered Single DACs

19-5651; Rev 0; 12/10
14-/16-Bit, Low-Power,
High-Performance, Buffered Single DACs
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, buff-
ered 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 consump-
tion 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 pow-
ered down after completion of each serial input frame.
On power-up, the MAX5214/MAX5216 reset the DAC
output to zero, providing additional safety for applica-
tions 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 (80µA max)
S 14-/16-Bit Resolution in a 3mm x 3mm, 8-Pin
µMAX 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/MICROWIRE-
Compatible 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
Ordering Information
PART
PIN-PACKAGE
RESOLUTION
(BITS)
MAX5214GUA+ 8 FMAX
14
MAX5216GUA+ 8 FMAX
16
Note: All devices are specified over the -40°C to +105°C
operating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Functional Diagram
VDD
REF
POR
MAX5214
CS
MAX5216
SERIAL-TO-
SCLK
DIN
PARALLEL
CONVERTER
INPUT
REGISTER
DAC
REGISTER
14-/16-BIT
DAC
BUFFER
OUT
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
CLR
GND
________________________________________________________________ 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.