Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- THERMAL INFORMATION
- ELECTRICAL CHARACTERISTICS
- PIN CONFIGURATIONS
- TIMING DIAGRAM
- TIMING REQUIREMENTS
- TYPICAL CHARACTERISTICS: DAC at AVDD = 5.5 V
- TYPICAL CHARACTERISTICS: DAC AT AVDD = 3.6 V
- TYPICAL CHARACTERISTICS: DAC AT AVDD = 2.7 V
- THEORY OF OPERATION
- DIGITAL-TO-ANALOG CONVERTER (DAC)
- RESISTOR STRING
- OUTPUT AMPLIFIER
- TWO-WIRE, I2C-COMPATIBLE INTERFACE
- DACx578 I2C UPDATE SEQUENCE
- POWER-ON RESET TO ZERO-SCALE OR MIDSCALE
- LDAC FUNCTIONALITY
- POWER-DOWN COMMANDS
- CLEAR CODE REGISTER AND CLR PIN
- SOFTWARE RESET FUNCTION
- OPERATING EXAMPLES: DAC7578
- Example 1: Write Mid Scale to Data Buffer A and Update Channel A Output
- Example 2: Power-Down Channel B, C, and H with Hi-Z Output
- Example 3: Read-back the value of the input register of DAC Channel G
- Example 4: Write multiple bytes of data to Channel F. Write Full Scale and then Quarter Scale to Channel F
- Example 5: Write Mid Scale and then Full Scale to all DAC channels.
- APPLICATION INFORMATION
- PARAMETER DEFINITIONS
- Revision History

Source Current (mA)
Output Voltage (V)
0 1 2 3 4 5 6 7 8 9 10
4.80
4.85
4.90
4.95
5.00
Channel C
DAC Loaded With FFFh
Sink Current (mA)
Output Voltage (V)
0 1 2 3 4 5 6 7 8 9 10
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Channel C
DAC Loaded With 000h
Source Current (mA)
Output Voltage (V)
0 1 2 3 4 5 6 7 8 9 10
4.80
4.85
4.90
4.95
5.00
Channel D
DAC Loaded With FFFh
Sink Current (mA)
Output Voltage (V)
0 1 2 3 4 5 6 7 8 9 10
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Channel D
DAC Loaded With 000h
Source Current (mA)
Output Voltage (V)
0 1 2 3 4 5 6 7 8 9 10
4.80
4.85
4.90
4.95
5.00
Channel H
DAC Loaded With FFFh
Sink Current (mA)
Output Voltage (V)
0 1 2 3 4 5 6 7 8 9 10
0.0
0.1
0.2
0.3
0.4
0.5
0.6
Channel H
DAC Loaded With 000h
DAC5578
DAC6578
DAC7578
SBAS496A –MARCH 2010–REVISED AUGUST 2010
www.ti.com
TYPICAL CHARACTERISTICS: DAC at AV
DD
= 5.5 V (continued)
At T
A
= 25°C, external reference used, DAC output not loaded, and all DAC codes in straight binary data format, DAC7578
graphs shown (unless otherwise noted).
SOURCE CURRENT SINK CURRENT
AT POSITIVE RAIL AT NEGATIVE RAIL
Figure 31. Figure 32.
SOURCE CURRENT SINK CURRENT
AT POSITIVE RAIL AT NEGATIVE RAIL
Figure 33. Figure 34.
SOURCE CURRENT SINK CURRENT
AT POSITIVE RAIL AT NEGATIVE RAIL
Figure 35. Figure 36.
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