MAX5253

Four 12-Bit DACs with Configurable Output Amplifiers
+3.0V to +3.6V Single-Supply Operation
Low Supply Current: 0.82mA Normal Operation
   3A Shutdown Mode
Reference Inputs are High Impedance in Shutdown
Available in 20-Pin SSOP
Power-On Reset Clears all Registers and DACs to Zero
SPI/QSPI and Microwire Compatible
Simultaneous or Independent Control of DACs
   via 3-Wire Serial Interface
User-Programmable Digital Output

Industrial Process Controls Automatic Test Equipment
Digital Offset and Gain Adjustment Motion Control
Remote Industrial Controls Microprocessor-Controlled Systems

VDD to AGND....................................................-0.3V, +6V
VDD to DGND ...................................................-0.3V, +6V
AGND to DGND........................................................±0.3V
REFAB, REFCD to AGND.....................0.3V to (VDD + 0.3V)
OUT_, FB_ to AGND..........................-0.3V to (VDD + 0.3V)
Digital Inputs to DGND...................................-0.3V to +6V
DOUT, UPO to DGND ........................-0.3V to (VDD + 0.3V)
Continuous Current into Any Pin...........................±20mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 8.00mW/°C above +70°C) ....640mW
SSOP (derate 8.00mW/°C above +70°C) ............640mW
CERDIP (derate 11.11mW/°C above +70°C)........889mW
Operating Temperature Ranges
MAX5253_C_P ...........................................0°C to +70°C
MAX5253_E_P ..........................................40°C to +85°C
MAX5253BMJP........................................-55°C to +125°C
Storage Temperature Range .................-65°C to +150°C
Lead Temperature (soldering, 10sec) ....................+300°C

The MAX5253 combines four low-power, voltage-output, 12-bit digital-to-analog converters (DACs) and four precision output amplifiers in a space-saving, 20-pin package. In addition to the four voltage outputs, each amplifier's negative input is also available to the user. This facilitates specific gain configurations, remote sensing, and high output drive capacity, making the
MAX5253 ideal for industrial-process-control applications. Other features include software shutdown, hardware shutdown lockout, an active-low reset which clears all registers and DACs to zero, a user-programmable logic output, and a serial-data output.

Each DAC has a double-buffered input organized as an input register followed by a DAC register. A 16-bit serial word loads data into each input/DAC register. The MAX5253 is compatible with SPI^TM/QSPI^TMand Microwire^{TM. THe MAX5253} allows the input and DAC registers to be updated independently or simultaneously with a single software command. The DAC registers can be simultaneously updated via the 3-wire serial interface. All logic inputs are TTL/CMOS-logic compatible.