Features: · Dual, 12-/10-/8-Bit Serial DACs in 4mm x 4mm Thin QFN and TSSOP Packages
· 3µs (max) 12-Bit Settling Time to 1/2 LSB
· Integral Nonlinearity
1 LSB (max) MAX5290/MAX5291 A-Grade (12-Bit)
1 LSB (max) MAX5292/MAX5293 (10-Bit)
1/2 LSB (max) MAX5294/MAX5295 (8-Bit)
· Guaranteed Monotonic, ±1 LSB (max) DNL
· Two User-Programmable Digital I/O Ports
· Single +2.7V to +3.6V Analog Supply
· +1.8V to AVDD Digital Supply
· 20MHz 3-Wire SPI-/QSPI-/MICROWIRE- and DSP-Compatible Serial Interface
· Glitch-Free Outputs Power Up to Zero Scale, Midscale or Full Scale
· Unity-Gain- or Force-Sense-Configured Output BuffersApplication·Portable Instrumentation
·Automatic Test Equipment (ATE)
·Digital Offset and Gain Adjustment
·Automatic Tuning
·Programmable Voltage and Current Sources
·Programmable Attenuators
·Industrial Process Controls
·Motion Control
·Microprocessor (µP)-Controlled Systems
·Power Amplifier Control
·Fast Parallel-DAC to Serial-DAC UpgradesSpecificationsAVDD to DVDD.................................................................................±6V
AGND to DGND............................................................................±0.3V
AVDD to AGND, DGND........................................................-0.3V to +6V
DVDD to AGND, DGND ......................................................-0.3V to +6V
FB_, OUT_,
REF to AGND.....................-0.3V to the lower of (AVDD + 0.3V) or +6V
SCLK, DIN, CS, PU,
DSP to DGND ...................-0.3V to the lower of (DVDD + 0.3V) or +6V
UPIO1, UPIO2
to DGND ..........................-0.3V to the lower of (DVDD + 0.3V) or +6V
Maximum Current into Any Pin ................................................±50mA
Continuous Power Dissipation (TA = +70°C)
14-Pin TSSOP (derate 9.1mW/°C above +70°C) ..................727mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ..................755mW
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) ..........1349mW
Operating Temperature Range ...............................-40°C to +85°C
Storage Temperature Range ................................-65°C to +150°C
Maximum Junction Temperature ...........................................+150°C
Lead Temperature (soldering, 10s) ......................................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe MAX5291 dual, 12-/10-/8-bit, voltageoutput digital-to-analog converters (DACs) offer buffered outputs and a 3µs maximum settling time at the 12-bit level. The DACs operate from a 2.7V to 3.6V analog supply and a separate 1.8V to 3.6V digital supply. The 20MHz 3-wire serial interface is compatible with SPI™, QSPI™, MICROWIRE™, and digital signal processor (DSP) protocol applications. Multiple devices can share a common serial interface in direct access or daisy-chained configuration. The MAX5291 provide two multifunctional, user-programmable, digital I/O ports. The externally selectable power-up states of the DAC outputs are either zero scale, midscale, or full scale. Software-selectable FAST and SLOW settling modes decrease settling time in FAST mode, or reduce supply current in SLOW mode.
The MAX5290/MAX5291 are 12-bit DACs, the MAX5292/ MAX5293 are 10-bit DACs, and the MAX5294/MAX5295 are 8-bit DACs. The MAX5290/ MAX5292/MAX5294 provide unity-gain-configured output buffers, while the MAX5291/MAX5293/MAX5295 provide force-sense-configured output buffers. The MAX5290 MAX5295 are specified over the extended -40°C to +85°C temperature range, and are available in space-saving 4mm x 4mm, 16-pin thin QFN and 6.5mm x 5mm, 14-pin and 16-pin TSSOP packages.
MAX5291 Data Sheet
