MAX5732

Features:

 Guaranteed Monotonic to 16 Bits
32 Individual DACs in an 8mm x 8mm, 56-Pin, Thin QFN Package
Four Output Voltage Ranges
        0 to +5V
        0 to +10V
        -2.5V to +7.5V
        -5V to +5V
Buffered Voltage Outputs Capable of Driving 10kΩ || 100pF
Glitch-Free Power-Up
SPI-/QSPI-/MICROWIRE-/DSP-Compatible 33MHz Serial Interface


Application

Automatic Test Systems
Optical Router Controls
Industrial Process Controls
Arbitrary Function Generators
Avionics Equipment
Digital Offset/Gain Adjustment


Specifications

AV_CC to VSS, AGND, DGND, REFGND..............................-0.3V to +12V
V_SS to AGND, DGND........................................................-6V to +0.3V
AV_DD, DVDD to AGND, DGND, REFGND.............................-0.3V to +6V
AGND to DGND.............................................................-0.3V to +0.3V
REF to AGND, DGND,
    REFGND.....................-0.3V to the lower of (AV_DD + 0.3V) and +6V
REFGND to AGND.........................................................-0.3V to +0.3V
Digital Inputs to AGND, DGND,
   REFGND.....................-0.3V to the lower of (DV_DD + 0.3V) and +6V
DOUT to DGND..............-0.3V to the lower of (DV_DD + 0.3V) and +6V
OUT_ to V_SS................-0.3V to the lower of (AV_CC + 0.3V) and +12V
GS to AGND .......................................................................-1V to +1V
Maximum Current into REF.......................................................±10mA
Maximum Current into Any Pin ................................................±50mA
Continuous Power Dissipation (T_A = +70°C)
Thin QFN (derate 31.3mW/°C above +70°C)...........................2.5W
Operating Temperature Ranges
MAX573__CTN............................................................0°C to +70°C
MAX573__ETN.........................................................-40°C to +85°C
Junction Temperature...........................................................+150°C
Storage Temperature Range ................................-65°C to +150°C
Lead Temperature (soldering, 10s) ......................................+300°C


Description

The MAX5732MAX5735 are 32-channel, 16-bit, voltage-output, digital-to-analog converters (DACs). All devices accept a 3V external reference input. The devices include an internal offset DAC that allows all the outputs to be offset and a ground-sensing function, allowing out-put voltages to be referenced to a remote ground.

A 33MHz SPI™-/QSPI™-/MICROWIRE™- and digital signal processor (DSP)-compatible serial interface con-trols the MAX5732MAX5735.  Each DAC has a double-buffered input structure that helps minimize the digital noise feedthrough from the digital inputs to the outputs,and allows for synchronous or asynchronous updating of the outputs. The MAX5732MAX5735 also provide a DOUT that allows for read-back or daisy chaining multi-ple devices. The devices provide separate powerinputs for the analog and digital sections and provide separate power inputs for the output buffer amplifiers.The MAX5732MAX5735 include proprietary deglitch circuits to prevent output glitches at power-up and eliminate the need for power sequencing.  The  evices provide a software-shutdown mode to allow efficient power management. The MAX5732MAX5735 con- sume 50µA of supply current in shutdown.

The MAX5732MAX5735 provide buffered outputs that can drive 10kΩ in parallel with 100pF. The MAX5732 has a 0 to +5V output range; the MAX5733 has a 0 to +10V range; the MAX5734 has a -2.5V to +7.5V range; the MAX5735 has a -5V to +5V range. The MAX5732 MAX5735 are available in a 56-pin, 8mm x 8mm, thin QFN package in both the commercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges.