19-3586; Rev 0; 2/05
Nonvolatile, Quad, 8-Bit DACs with 2-Wire Serial
The MAX5115/MAX5116 quad, 8-bit, digital-to-analog
converters (DACs) feature nonvolatile registers. These
nonvolatile registers store the DAC operating modes
and output states, allowing the DACs to initialize to
specified configurations at power-up.
Precision on-chip output buffers swing rail-to-rail, and
provide 8µs settling time. The I2C*-compatible, 2-wire
serial interface allows for a maximum clock frequency
The MAX5115 has independent high and low reference
inputs allowing maximum output voltage range flexibili-
ty. The MAX5116 has single high and low reference
inputs for all DACs to minimize trace count and save
board space. The reference rails accept voltage inputs
that range from ground to the positive supply rail.
The devices operate from a single +2.7V to +5.25V sup-
ply and consume 200µA per DAC. A software-controlled
power-down mode decreases supply current to less
than 25µA. A software-controlled mute mode sets each
DAC, or both DACs simultaneously, to their respective
REFL_ voltages. The MAX5116 also includes an asyn-
chronous MUTE input, that drives all DAC outputs simul-
taneously to their respective REFL_ voltages.
The MAX5115 is available in a 20-pin QSOP, and the
MAX5116 is available in a 16-pin QSOP package. Both
devices are specified for operation over the extended
(-40°C to +85°C) temperature range.
Digital Gain and Offset Adjustments
Power-Amp Bias Control
♦ Nonvolatile Registers Initialize DACs to Stored
♦ +2.7V to +5.25V Single-Supply Operation
♦ Quad 8-Bit DACs with Independent High and Low
♦ Rail-to-Rail Output Buffers
♦ Low 200µA per DAC Supply Current
♦ Power-Down Mode Reduces Supply Current to
♦ 400kHz, I2C-Compatible, 2-Wire Serial Interface
♦ Asynchronous MUTE Input (MAX5116)
♦ Small 16-/20-Pin QSOP Packages
-40°C to +85°C 20 QSOP
-40°C to +85°C 16 QSOP
Pin Configuration and Typical Operating Circuit appear at
end of data sheet.
*Purchase of I2C components from Maxim Integrated Products, Inc., or one of its sublicensed Associate Companies, conveys a
license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C
Standard Specification defined by Philips.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.