Rainbow Electronics MAX5131 - Manual

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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.
Applications
Industrial Process Control
Automatic Test Equipment (ATE)
Digital Offset and Gain Adjustment
Motion Control
µP-Controlled Systems
Features
♦ Single-Supply Operation
+5V (MAX5130)
+3V (MAX5131)
♦ Full-Scale Output Range
+4.0955V (MAX5130)
+2.04775V (MAX5131)
♦ Built-In 10ppm/°C (max) Precision Bandgap
Reference
+2.5V (MAX5130)
+1.25V (MAX5131)
♦ Adjustable Output Offset
♦ SPI/QSPI/MICROWIRE-Compatible, 3-Wire Serial
Interface
♦ Pin-Programmable Shutdown Mode and Power-
Up Reset (0V or Midscale Output Voltage)
♦ Buffered Output Capable of Driving 5k
Ω || 100pF
or 4–20mA Loads
♦ Space-Saving 16-Pin QSOP Package
♦ Pin-Compatible Upgrades to the 12-Bit
MAX5120/MAX5121
♦ Pin-Compatible 14-Bit Upgrades Available
(MAX5170/MAX5172)
MAX5130/MAX5131
+3V/+5V, 13-Bit, Serial Voltage-Output DACs
with Internal Reference
________________________________________________________________ Maxim Integrated Products 1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
OS V DD
REFADJ
REF
AGND
PD
UPO
DOUT
DGND
TOP VIEW
MAX5130
MAX5131
QSOP
OUT
RSTVAL
CS
PDL
CLR
DIN
SCLK
19-1429; Rev 0; 2/99
Pin Configuration Ordering Information
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
PART
MAX5130 AEEE
MAX5130BEEE
INL
(LSB)
±0.5
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-
PACKAGE
16 QSOP
16 QSOP ±1
MAX5131 AEEE
MAX5131BEEE
±1
-40°C to +85°C
-40°C to +85°C 16 QSOP
16 QSOP ±2