max5109 Maxim Integrated Products, Inc., max5109 Datasheet
max5109
Available stocks
Related parts for max5109
max5109 Summary of contents
Page 1
... REFL_ voltages. The MAX5109 also includes an asynchronous MUTE input, that drives both DAC outputs simultaneously to their respective REFL_ voltages. The MAX5109 is available in a 16-pin QSOP and is specified for operation over the extended (-40°C to +85°C) temperature range. Digital Gain and Offset Adjustments ...
Page 2
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial Interface ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) , A0, A1, A2, A3, SCL, SDA, MUTE.................-0.3V to +6. OUT0, OUT1, REFH0, REFH1 REFL0, REFL1 .......................................-0. ...
Page 3
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V, GND = 0, REFH_ = V DD noted. Typical values are +3.0V and T DD PARAMETER SYMBOL Input Low Voltage (Note 4) ...
Page 4
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial Interface ELECTRICAL CHARACTERISTICS (continued +2.7V to +5.25V, GND = 0, REFH_ = V DD noted. Typical values are +3.0V and T DD PARAMETER SYMBOL DIGITAL TIMING (Figure 3, ...
Page 5
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial (V = +3V +3V GND REFH_ REFL_ INTEGRAL NONLINEARITY vs. INPUT CODE 2.0 1.5 1.0 0.5 0 -0.5 -1 128 192 INPUT CODE DIFFERENTIAL NONLINEARITY ...
Page 6
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial Interface (V = +3V +3V GND REFH_ REFL_ GAIN ERROR vs. TEMPERATURE -0.08 -0.10 -0.12 -0.14 -0.16 -0.18 -0.20 -40 - TEMPERATURE (°C) SUPPLY ...
Page 7
... FREQUENCY (kHz) POWER-UP TRANSITION SCL 2V/div GND 25 26 OUT_ 500mV/div GND 1µs/div POSITIVE SETTLING TIME OUT_ 50mV/div AC-COUPLED 2µs/div 1000 10,000 100,000 MAX5109 toc21 SCL 2V/div GND 27 OUT_ 500mV/div GND MAX5109 toc24 SCL 2V/div GND OUT_ 1V/div GND 7 ...
Page 8
... GND to set the device address. DD for normal operation. DD through a 2.4kΩ pullup resistor +2.7 to +5.25V power supply. Bypass V DD through a 2.4kΩ pullup resistor. DD OUTPUT CROSSTALK MAX5109 toc27 SCL 2V/div GND OUT0 2V/div GND OUT1 10mV/div AC-COUPLED OUT1_ SET TO 7Fh 2µs/div Pin Description to GND with a 0.1µ ...
Page 9
... DAC Operation Figure 2. DAC Simplified Circuit Diagram The MAX5109 analog outputs are internally buffered by precision unity-gain amplifiers. The outputs swing from GND to V The amplifier outputs typically settle to ±0.5 LSB in 8µs when loaded with 5kΩ in parallel with 100pF. Interface ...
Page 10
... One data bit transfers during each SCL rising edge. Nine clock cycles are required to transfer the data into or out of the MAX5109. The data on SDA must remain stable during the high period of the SCL clock pulse. Changes in SDA while SCL is high are read as control signals (see the START and STOP Conditions section) ...
Page 11
... This condition is not a legal I REPEATED START Conditions A REPEATED START (Sr) condition is used when the bus master is writing to several I not want to relinquish control of the bus. The MAX5109 serial interface supports continuous write operations with an Sr condition separating them. Continuous read operations require Sr conditions because of the change in direction of data flow ...
Page 12
... The least sig- nificant bit (LSB) of the address byte (R/W) determines whether the master is writing to or reading from the MAX5109. (R selects a write condition. R selects a read condition.) After receiving the address, the MAX5109 (slave) issues an acknowledge by pulling SDA low for one clock cycle ...
Page 13
... The volatile and nonvolatile registers remain active while the MAX5109 is in mute and/or power-down modes. Writing to or reading from the volatile or non- volatile registers does not remove the MAX5109 from mute or power-down mode. Writing or transferring data to the volatile registers while the device is muted or powered down updates the DAC outputs to the new state upon exiting mute or power-down mode ...
Page 14
... The non- volatile control register is set to 00 hex at the factory. Power-on reset (POR) circuitry controls the initialization of the MAX5109. A POR loads the volatile registers with the data stored in the nonvolatile registers. This initialization period takes 500µs (typ). During this time, the DAC outputs are held in mute mode ...
Page 15
... External Voltage Reference The MAX5109 features two reference inputs for each DAC (REFH_ and REFL_). REFH_ sets the full-scale volt- age, while REFL_ sets the zero code output. A 460kΩ ...
Page 16
... TRANSISTOR COUNT: 40,209 V DD PROCESS: BiCMOS MAX5109 OUT0 OUT1 MUTE ADDRESS 0101 111 Pin Configuration SDA SCL MAX5109 REFH0 REFH1 5 12 REFL0 REFL1 6 OUT0 11 OUT1 7 10 N.C. GND 8 9 MUTE QSOP Chip Information ...
Page 17
... Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc. Interface Package Information PACKAGE OUTLINE, QSOP .150", .025" LEAD PITCH ...