Rainbow Electronics MAX5541 - Manual

General Description
The MAX5541 serial-input, voltage-output, 16-bit monoto-
nic digital-to-analog converter (DAC) operates from a
single +5V supply. The DAC output is unbuffered, result-
ing in a low 0.3mA supply current and low 1LSB offset
error. The DAC output range is 0V to V
REF . The DAC
latch accepts a 16-bit serial word. A power-on reset
(POR) circuit clears the DAC output to 0V (unipolar
mode) when power is initially applied.
The 10MHz 3-wire serial interface is SPI™/QSPI™/
MICROWIRE™-compatible and interfaces directly with
optocouplers for applications requiring isolation. The
MAX5541 is available in an 8-pin SO package. For the
1LSB (max) INL version, refer to the MAX541 data sheet.
Applications
High-Resolution Offset and Gain Adjustment
Industrial Process Control
Automated Test Equipment
Data Acquisition Systems
Features
♦ Full 16-Bit Performance Without Adjustments
♦ +5V Single-Supply Operation
♦ Low Power: 1.5mW
♦ 1µs Settling Time
♦ Unbuffered Voltage Output Directly Drives 60kΩ
Loads
♦ SPI/QSPI/MICROWIRE-Compatible Serial Interface
♦ Power-On Reset Circuit Clears DAC Output to 0V
(unipolar mode)
♦ Schmitt Trigger Inputs for Direct Optocoupler
Interface
♦ Choose MAX541 as a 1LSB (max) INL Upgrade to
the MAX5541
MAX5541
Low-Cost, +5V, Serial-Input,
Voltage-Output, 16-Bit DAC
________________________________________________________________ Maxim Integrated Products 1
TOP VIEW
SO
DIN REF
SCLK CS
1
2
8
7
V DD
DGND AGND
OUT
MAX5541
3
4
6
5
Pin Configuration
16-BIT DAC
16-BIT DATA LATCH
SERIAL INPUT REGISTER
CONTROL
LOGIC
MAX5541
REF
CS
DIN
SCLK
AGND
OUT
V DD
DGND
Functional Diagram
19-1572; Rev 2; 6/02
PART
MAX5541CSA
MAX5541ESA -40°C to +85°C
0°C to +70°C
TEMP RANGE PIN-PACKAGE
8 SO
8 SO
Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.