19-1718; Rev 3; 1/09
Low-Cost, Low-Power, 8-Bit DACs with 3-Wire
Serial Interface in SOT23
4/MAX385
General Description
Features
♦ 8-Bit Resolution in a Miniature 6-Pin SOT23
The MAX5383/MAX5384/MAX5385 low-cost, 8-bit digital-
to-analog converters (DACs) in miniature 6-pin SOT23
packages have a simple 3-wire, SPI™/QSPI™/
MICROWIRE™-compatible serial interface that operates
up to 10MHz. The MAX5383 has an internal +2V refer-
ence and operates from a +2.7V to +3.6V supply. The
MAX5384 has an internal +4V reference and operates
from a +4.5V to +5.5V supply. The MAX5385 operates
over the full +2.7V to +5.5V supply range and has an
✕
Package
♦ Wide +2.7V to +5.5V Supply Range (MAX5385)
♦ <1µA Shutdown Mode
♦ Software-Selectable Output Resistance During
Shutdown
♦ Buffered Output Drives Resistive Loads
♦ Low-Glitch Power-On Reset to Zero DAC Output
♦ 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
♦ < 5ꢀ ꢁull-Scale Error (MAX5385)
internal reference equal to 0.9
V
DD
.
The MAX5383/MAX5384/MAX5385 require an extremely
low supply current of only 150µA (typ) and provide a
buffered voltage output. These devices power up at zero
code and remain there until a new code is written to the
DAC registers. This provides additional safety for appli-
cations that drive valves or other transducers that need
to be off on power-up. The MAX5383/MAX5384/
MAX5385 include a 1µA, low-power shutdown mode that
features software-selectable output loads of 1kΩ, 100kΩ,
or 1MΩ to ground.
♦ < 1LSB maꢂ IꢃL/DꢃL
♦ Low 230µA (maꢂ) Supply Current
Ordering Information
PIꢃ-
SOT
PART
TEMP RAꢃGE
PACKAGE
TOP MARK
MAX5383EUT+T -40°C to +85°C 6 SOT23
MAX5383EZT+T -40°C to +85°C 6 SOT23-Thin
MAX5384EUT+T -40°C to +85°C 6 SOT23
MAX5384EZT+T -40°C to +85°C 6 SOT23-Thin
MAX5385EUT+T -40°C to +85°C 6 SOT23
MAX5385EZT+T -40°C to +85°C 6 SOT23-Thin
AADF
AAAH
AADH
AAAI
Applications
Automatic Tuning (VCO)
Power Amplifier Bias Control
Programmable Threshold Levels
Automatic Gain Control
AADJ
AAAJ
+Denotes lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Automatic Offset Adjustment
Selector Guide
PART
IꢃTERꢃAL REꢁEREꢃCE
MAX5383
MAX5384
MAX5385
2V
4V
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
0.9 ✕ V
DD
Typical Operating Circuit
Pin Configuration
+2.7V TO +5.5V
TOP VIEW
+
OUT
GND
1
2
3
6
5
4
CS
V
DD
MC68XXXX
PCS0
MAX5383
MAX5384
MAX5385
CS
DIN
SCLK
SCLK
DIN
OUT
MAX5385
MOSI
SCK
V
GND
DD
SOT23
________________________________________________________________ Maꢂim Integrated Products
1
ꢁor price, delivery, and to place orders, please contact Maꢂim Distribution at 1-888-629-4642,
or visit Maꢂim’s website at www.maꢂim-ic.com.