MAX5132 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – +5V/+3V, 13-Bit, Serial, Force/Sense DACs with 10ppm/°C Internal Reference

19-1441; Rev 0; 3/99
+5V/+3V, 13-Bit, Serial, Force/Sense DACs
with 10ppm/°C Internal Reference
General Description
The MAX5132/MAX5133 low-power, 13-bit, voltage-out-
put digital-to-analog converters (DACs) feature an inter-
nal precision bandgap reference and output amplifier.
The MAX5132 operates on a single +5V supply with an
internal reference of +2.5V and offers a configurable out-
put amplifier. If necessary, the user can override the on-
chip, <10ppm/°C voltage reference with an external
reference. The MAX5133 has the same features as the
MAX5132 but operates from a single +3V supply and
has an internal +1.25V precision reference. The user-
accessible inverting input and output of the amplifier
allows specific gain configurations, remote sensing, and
high output drive capability for a wide range of
force/sense applications. Both devices draw only 500µA
of supply 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 mid-
scale and reduces output glitches during power-up.
The serial interface is compatible with SPI™, QSPI™,
and MICROWIRE™, which makes the MAX5132/
MAX5133 suitable for cascading multiple devices. Each
DAC has a double-buffered input organized as an input
register followed 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) operating temperature range. For pin-compati-
ble 14-bit upgrades, see the MAX5171/MAX5173 data
sheet; for pin-compatible 12-bit versions, see the
MAX5122/MAX5123 data sheet.
Features
o Single-Supply Operation
+5V (MAX5132)
+3V (MAX5133)
o Built-In 10ppm/°C max Precision Bandgap Reference
+2.5V (MAX5132)
+1.25V (MAX5133)
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 for the 12-Bit
MAX5122/MAX5123
o Pin-Compatible 14-Bit Upgrades Available
(MAX5171/MAX5173)
PART
MAX5132AEEE
MAX5132BEEE
MAX5133AEEE
MAX5133BEEE
Ordering Information
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
Applications
Industrial Process Control
Automatic Test Equipment (ATE)
Digital Offset and Gain Adjustment
Motion Control
Microprocessor-Controlled Systems
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configuration
TOP VIEW
FB 1
OUT 2
RSTVAL 3
PDL 4
CLR 5
CS 6
DIN 7
SCLK 8
MAX5132
MAX5133
QSOP
16 V_DD
15 REFADJ
14 REF
13 AGND
12 PD
11 UPO
10 DOUT
9 DGND
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