MAX5703/MAX5704/MAX5705
Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output
Voltage DACs with Internal Reference and SPI Interface
General Description
Benefits and Features
The MAX5703/MAX5704/MAX5705 single-channel, low-
power, 8-/10-/12-bit, voltage-output digital-to-analog
converters (DACs) include output buffers and an internal
reference that is selectable to be 2.048V, 2.500V, or
4.096V. The MAX5703/MAX5704/MAX5705 accept a
wide supply voltage range of 2.7V to 5.5V with extremely
low power (< 1mW) consumption to accommodate most
low-voltage applications. A precision external reference
input allows rail-to-rail operation and presents a 100kI
(typ) load to an external reference.
S Single High-Accuracy DAC Channel
12-Bit Accuracy Without Adjustments
1 LSB INL Buffered Voltage Output
Monotonic Over All Operating Conditions
S Three Precision Selectable Internal References
2.048V, 2.500V, or 4.096V
S Internal Output Buffer
Rail-to-Rail Operation with External Reference
6.3µs Settling Time
Output Directly Drives 2kI Loads
The MAX5703/MAX5704/MAX5705 have a 50MHz,
3-wire SPI/QSPI™/MICROWIRE®/DSP-compatible serial
interface. The DAC output is buffered and has a low
supply current of 155FA (typical at 3V) and a low offset
error of Q0.5mV (typical). On power-up, the MAX5703/
MAX5704/MAX5705 reset the DAC outputs to zero,
providing additional safety for applications that drive
valves or other transducers which need to be off on
power-up. The internal reference is initially powered
down to allow use of an external reference.
S Small, 10-Pin, 2mm x 3mm TDFN and 3mm x 5mm
µMAX Packages
S Wide 2.7V to 5.5V Supply Range
S Flexible 1.8V to 5.5V V
DDIO
S 50MHz, 3-Wire, SPI/QSPI/MICROWIRE/DSP-
Compatible Serial Interface
S Power-On-Reset to Zero-Scale DAC Output
S User-Configurable Asynchronous I/O Functions:
CLR, LDAC, GATE
The MAX5703/MAX5704/MAX5705 include
a
user-
configurable active-low asynchronous input, AUX for
additional flexibility. This input can be programmed to
asynchronously clear (CLR) or temporarily gate (GATE) the
DAC output to a user-programmable value. A dedicated
active-low asynchronous LDAC input is also included. This
allows simultaneous output updates of multiple devices.
S Three Software-Selectable Power-Down Output
Impedances: 1kI, 100kI, or High Impedance
S Low 155µA DAC Supply Current at 3V
Functional Diagram
The MAX5703/MAX5704/MAX5705 are available in 10-pin
TDFN/µMAX packages and are specified over the -40NC
V
DDIO
V
DD
REF
M
to +125NC temperature range
.
MAX5703
MAX5704
MAX5705
INTERNAL REFERENCE /
EXTERNAL BUFFER
Applications
CS
8-/10-/
12-BIT
DAC
CODE
DAC
Programmable Voltage and Current Sources
Gain and Offset Adjustment
SCLK
REGISTER
LATCH
OUT
BUFFER
SPI
SERIAL
INTERFACE
DIN
AUX
Automatic Tuning and Optical Control
Power Amplifier Control and Biasing
Process Control and Servo Loops
Portable Instrumentation
CLEAR/
RESET
CLEAR /
RESET
CODE
LOAD GATE
LDAC
100kI 1kI
POWER
DOWN
DAC CONTROL LOGIC
POR
Data Acquisition
GND
QSPI is a trademark of Motorola, Inc.
Ordering Information appears at end of data sheet.
MICROWIRE is a registered trademark of National
Semiconductor Corp.
For related parts and recommended products to use with this part,
refer to: www.maximintegated.com/MAX5703.related
µMAX is a registered trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6463; Rev 3; 11/14
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