MAX5500_09 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Low-Power, Quad, 12-Bit Voltage-Output DACs with Serial Interface

19-4368; Rev 1; 4/09
Low-Power, Quad, 12-Bit
Voltage-Output DACs with Serial Interface
General Description
The MAX5500/MAX5501 integrate four low-power, 12-bit
digital-to analog converters (DACs) and four precision
output amplifiers in a small, 20-pin package. Each nega-
tive input of the four precision amplifiers is externally
accessible providing flexibility in gain configurations,
remote sensing, and high output drive capacity, making
the MAX5500/MAX5501 ideal for industrial-process-con-
trol applications. Other features include software shut-
down, hardware shutdown lockout, an active-low reset
which clears all registers and DACs to zero, a user-pro-
grammable logic output, and a serial-data output.
Each DAC provides a double-buffered input organized
as an input register followed by a DAC register. A 16-bit
serial word loads data into each input register. The seri-
al interface is compatible with SPI™/QSPI™/
MICROWIRE™. The serial interface allows the input and
DAC registers to be updated independently or simulta-
neously with a single software command. The 3-wire
interface simultaneously updates the DAC registers. All
logic inputs are TTL/CMOS-logic compatible. The
MAX5500 operates from a single +5V power supply,
and the MAX5501 operates from a single +3V power
supply. The MAX5500/MAX5501 are specified over the
extended -40°C to +105°C temperature range.
Applications
Industrial Process Controls
Automatic Test Equipment
Microprocessor (μP)-Controlled Systems
Motion Control
Digital Offset and Gain Adjustment
Remote Industrial Controls
Features
o Four 12-Bit DACs with Configurable Output
Amplifiers
o +5V or +3V Single-Supply Operation
o Low Supply Current:
0.85mA Normal Operation
10µA Shutdown Mode (MAX5500)
o Force-Sense Outputs
o Power-On Reset Clears All Registers and DACs
to Zero
o Capable of Recalling Last State Prior to Shutdown
o SPI/QSPI/MICROWIRE Compatible
o Simultaneous or Independent Control of DACs
through 3-Wire Serial Interface
o User-Programmable Digital Output
o Guaranteed Over Extended Temperature Range
(-40°C to +105°C)
Ordering Information
PART
PIN-
INL (LSB) SUPPLY (V)
PACKAGE
MAX5500AGAP+ 20 SSOP
±0.75
+5
MAX5500BGAP+ 20 SSOP
±2
+5
MAX5501AGAP+ 20 SSOP
±0.75
+3
MAX5501BGAP+ 20 SSOP
±2
+3
+Denotes a lead(Pb)-free/RoHS-compliant package.
Note: All devices are specified over the -40°C to +105°C operating
temperature range.
Pin Configuration appears at end of data sheet.
Functional Diagram
DOUT CL
PDL DGND AGND VDD
DECODE
CONTROL
INPUT
REGISTER A
DAC
REGISTER A
16-BIT
SHIFT
REGISTER
INPUT
REGISTER B
INPUT
REGISTER C
DAC
REGISTER B
DAC
REGISTER C
SR
CONTROL
LOGIC
OUTPUT
INPUT
REGISTER D
DAC
REGISTER D
REFAB
DAC A
MAX5500
MAX5501
DAC B
DAC C
DAC D
FBA
OUTA
FBB
OUTB
FBC
OUTC
FBD
OUTD
CS DIN SCLK UPO
REFCD
SPI/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 Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.