19-1429; Rev 0; 2/99
+3V/+5V, 13-Bit, Serial Voltage-Output DACs
with Internal Reference
General Description
The MAX5130/MAX5131 are low-power, 13-bit, voltage-
output digital-to-analog converters (DACs) with an inter-
nal precision bandgap reference and output amplifier.
The MAX5130 operates on a single +5V supply with an
internal reference of +2.5V, and is capable of a +4.0955V
full-scale output. If necessary, the user can override the
on-chip, <10ppm/°C voltage reference with an external
reference. The MAX5131, operating on +3V, delivers its
+2.04775V full-scale output with an internal precision ref-
erence of +1.25V. Both devices draw only 500µA of sup-
ply current, which reduces to 3µA in power-down mode.
In addition, their power-up reset feature allows for a user-
selectable initial output state of either 0V or midscale and
minimizes output voltage glitches during power-up.
The serial interface is compatible with SPI™, QSPI™, and
MICROWIRE™, which makes the MAX5130/MAX5131
suitable for cascading multiple devices. Each DAC has a
double-buffered input organized as an input register fol-
lowed by a DAC register. A 16-bit shift register loads data
into the input register. The DAC register may be updated
independently or simultaneously with the input register.
Both devices are available in a 16-pin QSOP package
and are specified for the extended-industrial (-40°C to
+85°C) temperature range. For pin-compatible 14-bit
upgrades, see the MAX5170/MAX5172 data sheet;
for pin-compatible 12-bit versions, see the MAX5120/
MAX5121 data sheet.
o
Single-Supply Operation
+5V (MAX5130)
+3V (MAX5131)
o
Full-Scale Output Range
+4.0955V (MAX5130)
+2.04775V (MAX5131)
o
Built-In 10ppm/°C (max) Precision Bandgap
Reference
+2.5V (MAX5130)
+1.25V (MAX5131)
o
Adjustable Output Offset
o
SPI/QSPI/MICROWIRE-Compatible, 3-Wire Serial
Interface
o
Pin-Programmable Shutdown Mode and Power-
Up Reset (0V or Midscale Output Voltage)
o
Buffered Output Capable of Driving 5kΩ
||
100pF
or 4–20mA Loads
o
Space-Saving 16-Pin QSOP Package
o
Pin-Compatible Upgrades to the 12-Bit
MAX5120/MAX5121
o
Pin-Compatible 14-Bit Upgrades Available
(MAX5170/MAX5172)
Features
MAX5130/MAX5131
Applications
Industrial Process Control
Automatic Test Equipment (ATE)
Digital Offset and Gain Adjustment
Motion Control
µP-Controlled Systems
Pin Configuration
TOP VIEW
OS 1
OUT 2
RSTVAL 3
PDL 4
CLR 5
CS 6
DIN 7
SCLK 8
16 V
DD
15 REFADJ
14 REF
Ordering Information
PART
MAX5130AEEE
MAX5130BEEE
MAX5131AEEE
MAX5131BEEE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
16 QSOP
16 QSOP
16 QSOP
16 QSOP
INL
(LSB)
±0.5
±1
±1
±2
MAX5130
MAX5131
13 AGND
12 PD
11 UPO
10 DOUT
9
DGND
SPI and QSPI are trademarks of Motorola, Inc.
QSOP
MICROWIRE is a trademark of National Semiconductor Corp.
1
________________________________________________________________
Maxim Integrated Products
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.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
