MAX5250BEAP-T Datasheet, PDF (1/16 Pages) Maxim Integrated Products – Low-Power, Quad, 10-Bit Voltage-Output DAC

19-1171; Rev 1; 10/02
Low-Power, Quad, 10-Bit Voltage-Output DAC
with Serial Interface
__________________General Description ______________________________Features
The +5V MAX5250 combines four low-power, voltage- o Four 10-Bit DACs with Configurable
output, 10-bit digital-to-analog converters (DACs) and
Output Amplifiers
four precision output amplifiers in a space-saving, 20-
pin package. In addition to the four voltage outputs,
each amplifier’s negative input is also available to the
user. This facilitates specific gain configurations, remote
sensing, and high output drive capacity, making the
o +5V Single-Supply Operation
o Low Supply Current: 0.85mA Normal Operation
10µA Shutdown Mode
o Available in 20-Pin SSOP and DIP Packages
MAX5250 ideal for industrial-process-control applica- o Power-On Reset Clears all Registers and
tions. Other features include software shutdown, hard-
DACs to Zero
ware shutdown lockout, an active-low reset that clears
all registers and DACs to zero, a user-programmable
logic output, and a serial-data output.
Each DAC has a double-buffered input organized as an
input register followed by a DAC register. A 16-bit serial
word loads data into each input/DAC register. The
3-wire serial interface is compatible with SPI™/QSPI™
o SPI/QSPI and MICROWIRE Compatible
o Simultaneous or Independent Control of DACs
through 3-Wire Serial Interface
o User-Programmable Digital Output
o Schmitt-Trigger Inputs for Direct Optocoupler
Interface
and MICROWIRE™. It allows the input and DAC regis- o 12-Bit Upgrade Available: MAX525
ters to be updated independently or simultaneously with
a single software command. All logic inputs are
TTL/CMOS-logic compatible.
_________________Ordering Information
________________________Applications
Digital Offset and Gain Adjustment
Microprocessor-Controlled Systems
Industrial Process Controls
PART
MAX5250ACPP
MAX5250BCPP
MAX5250ACAP
MAX5250BCAP
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
20 Plastic DIP
20 Plastic DIP
20 SSOP
20 SSOP
INL
(LSB)
±1/2
±1
±1/2
±1
Automatic Test Equipment
Ordering Information continued on last page.
Remote Industrial Controls
Pin Configuration appears at end of data sheet.
Motion Control
_________________________________________________________________________Functional Diagram
DOUT CL
PDL DGND AGND ^VDD
REFAB
DECODE
CONTROL
INPUT
REGISTER A
MAX5250
DAC
REGISTER A
DAC A
FBA
OUTA
FBB
16-BIT
SHIFT
REGISTER
SR
CONTROL
LOGIC
OUTPUT
INPUT
REGISTER B
INPUT
REGISTER C
DAC
REGISTER B
DAC
REGISTER C
INPUT
REGISTER D
DAC
REGISTER D
DAC B
DAC C
DAC D
OUTB
FBC
OUTC
FBD
OUTD
CS DIN SCLK UPO
REFCD
SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products 1
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.