19-1587; Rev 0; 11/99
Lo w -P o w e r, Du a l, Vo lt a g e -Ou t p u t , 1 2 -Bit DAC
w it h S e ria l In t e rfa c e
MAX5104
Ge n e ra l De s c rip t io n
The MAX5104 low-power, serial, voltage-output, dual
12-bit digital-to-analog converter (DAC) consumes only
500µA from a single +5V supply. This device features
____________________________Fe a t u re s
♦ 12-Bit Dual DAC with Internal Gain of +2V/V
♦ Rail-to-Rail Output Swing
®
Rail-to-Rail output swing and is available in a space-
♦ 12µs Settling Time
saving 16-pin QSOP package. To maximize the dynamic
range, the DAC output amplifiers are configured with an
internal gain of +2V/V.
♦ +5V Single-Supply Operation
♦ Low Quiescent Current
500µA (normal operation)
2µA (power-down mode)
The 3-wire serial interface is SPI™/QSPI™/MICROWIRE™
compatible. Each DAC has a double-buffered input
organized as an input register followed by a DAC register,
which allows the input and DAC registers to be updated
independently or simultaneously with a 16-bit serial
word. Additional features include programmable power-
down (2µA), hardware power-down lockout (PDL), a
separate reference voltage input for each DAC that
accepts AC and DC signals, and an active-low clear
input (CL) that resets all registers and DACs to zero.
These devices provide a programmable logic pin for
added functionality, and a serial-data output pin for
daisy chaining.
♦ SPI/QSPI/MICROWIRE Compatible
♦ Space-Saving 16-Pin QSOP Package
♦ Power-On Reset Clears Registers and DACs to Zero
♦ Adjustable Output Offset
Ord e rin g In fo rm a t io n
PIN-
PACKAGE
INL
(LSB)
PART
TEMP. RANGE
________________________Ap p lic a t io n s
Industrial Process Control
MAX5104CEE
MAX5104EEE
0°C to +70°C
16 QSOP
16 QSOP
±4
±4
-40°C to +85°C
Remote Industrial Controls
Pin Configuration appears at end of data sheet.
Digital Offset and Gain Adjustment
Microprocessor-Controlled Systems
Motion Control
Automatic Test Equipment (ATE)
Fu n c t io n a l Dia g ra m
V
DD
CL
PDL
DGND
DOUT
AGND
REFA
OSA
R
DECODE
CONTROL
R
OUTA
OSB
DAC
REG A
INPUT
REG A
DAC A
16-BIT
SHIFT
R
REGISTER
MAX5104
R
SR
CONTROL
OUTB
DAC
REG B
INPUT
REG B
DAC B
REFB
LOGIC
OUTPUT
UPOH
CS
DIN
SCLK
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.