19-1846; Rev 3; 1/09
KIT
ATION
EVALU
ILABLE
AVA
+3V/+5V, Serial-Input,
Voltage-Output, 16-Bit DACs
The MAX5441–MAX5444 are serial-input, voltage-output, 16-bit digital-to-analog converters (DACs) in tiny
µMAX® packages, 50% smaller than comparable DACs
in 8-pin SOs. They operate from low +3V (MAX5443/
MAX5444) or +5V (MAX5441/MAX5442) single supplies. They provide 16-bit performance (±2LSB INL and
±1LSB DNL) over temperature without any adjustments.
Unbuffered DAC outputs result in a low supply current
of 120µA and a low offset error of 2LSB.
The DAC output ranges from 0 to VREF. For bipolar
operation, matched scaling resistors are provided in
the MAX5442/MAX5444 for use with an external precision op amp (such as the MAX400), generating a
±VREF output swing.
A 16-bit serial word is used to load data into the DAC
latch. The 25MHz, 3-wire serial interface is compatible
with SPI/QSPI™/MICROWIRE, and can interface directly
with optocouplers for applications requiring isolation. A
power-on reset circuit clears the DAC output to code 0
(MAX5441/MAX5443) or code 32768 (MAX5442
/MAX5444) when power is initially applied.
A logic low on CLR asynchronously clears the DAC output to code 0 (MAX5441/MAX5443) or code 32768
(MAX5442/MAX5444) independent of the serial interface.
The MAX5441/MAX5443 are available in 8-pin µMAX
packages. The MAX5442/MAX5444 are available in 10pin µMAX packages.
Applications
High-Resolution Offset and Gain Adjustment
Features
o
o
o
o
o
o
o
o
o
o
o
Ultra-Small 3mm x 5mm 8-Pin µMAX Package
Low 120µA Supply Current
Fast 1µs Settling Time
25MHz SPI/QSPI/MICROWIRE-Compatible Serial
Interface
VREF Range Extends to VDD
+5V (MAX5441/MAX5442) or +3V
(MAX5443/MAX5444) Single-Supply Operation
Full 16-Bit Performance Without Adjustments
Unbuffered Voltage Output Directly Drives
60kΩ Loads
Power-On Reset Circuit Clears DAC Output to
Code 0 (MAX5441/MAX5443) or Code 32768
(MAX5442/MAX5444)
Schmitt-Trigger Inputs for Direct Optocoupler
Interface
Asynchronous CLR
Pin Configurations
TOP VIEW
+
8 GND
REF 1
CS
2
SCLK 3
DIN
MAX5441
MAX5443
4
7 VDD
REF 1
5 CLR
10 GND
CS 2
SCLK 3
6 OUT
+
9 VDD
MAX5442
MAX5444
8 RFB
DIN 4
7 INV
CLR 5
6 OUT
Industrial Process Control
µMAX-10
µMAX-8
Automated Test Equipment
Data-Acquisition Systems
Functional Diagrams appear at end of data sheet.
Ordering Information
INL (LSB)
SUPPLY (V)
MAX5441ACUA+
PART
TEMP RANGE
0°C to +70°C
8 µMAX
PIN-PACKAGE
±2
5
MAX5441AEUA+
-40°C to +85°C
8 µMAX
±2
5
MAX5441BCUA+
0°C to +70°C
8 µMAX
±4
5
MAX5441BEUA+
-40°C to +85°C
8 µMAX
±4
5
5
MAX5442ACUB+
0°C to +70°C
10 µMAX
±2
MAX5442AEUB+
-40°C to +85°C
10 µMAX
±2
5
MAX5442BCUB+
0°C to +70°C
10 µMAX
±4
5
MAX5442BEUB+
-40°C to +85°C
10 µMAX
±4
5
+Denotes a lead(Pb)-free/RoHS-compliant package.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
QSPI is a trademark of Motorola, Inc.
Note: For leaded version, contact factory.
MICROWIRE is a registered trademark of National Semiconductor Corp. Ordering Information continued at end of data sheet.
________________________________________________________________ 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.
MAX5441–MAX5444
General Description
