MAX5214, MAX5216 14-/16-Bit, Low-Power, High-Performance, Buffered Single DACs0 pages

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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
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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