DAC8574 Datasheet, PDF (35/40 Pages) Texas Instruments – QUAD, 16-BIT, LOW-POWER, VOLTAGE OUTPUT, I2C INTERFACE DIGITAL-TO-ANALOG CONVERTER

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APPLICATION INFORMATION (continued)
EXAMPLE 4: WRITE 4/4 SCALE TO CHANNEL D
ADDRESS [7...0]
C [7...0]
M [7...0]
START
1001 1000
ACK 0001 0110
ACK
1111 1111
Previous VoutD output voltage is valid
EXAMPLE 5: Power-Down Channel A, With Hi-Z Output
ADDRESS [7...0]
C [7...0]
M [7...0]
START
1001 1000
ACK 0001 0101
ACK
0000 0000
Previous VoutA output voltage is valid
EXAMPLE 6: Power-Down Channel B, With Hi-Z Output
ADDRESS [7...0]
C [7...0]
M [7...0]
START
1001 1000
ACK 0001 0011
ACK
0000 0000
Previous VoutB output voltage is valid
EXAMPLE 7: Power-Down Channel C, With Hi-Z Output
ADDRESS [7...0]
C [7...0]
M [7...0]
START
1001 1000
ACK 0001 0101
ACK
0000 0000
Previous VoutC output voltage is valid
EXAMPLE 8: Power-Down Channel D, With Hi-Z Output
ADDRESS [7...0]
C [7...0]
M [7...0]
START
1001 1000
ACK 0001 0111
ACK
0000 0000
Previous VoutD output voltage is valid
EXAMPLE 9: Power-Down Channel D, With 1 kΩ Output Impedance to Ground
ADDRESS [7...0]
C [7...0]
M [7...0]
START
1001 1000
ACK 0001 0111
ACK
0100 0000
Previous VoutA output voltage is valid
EXAMPLE 10: Power-Down Channel D, With 100 kΩ Output Impedance to Ground
ADDRESS [7...0]
C [7...0]
M [7...0]
START
1001 1000
ACK 0001 0111
ACK
1000 0000
Previous VoutD output voltage is valid
DAC8574
SLAS377A – JANUARY 2003 – REVISED JUNE 2003
ACK
ACK
ACK
ACK
ACK
ACK
ACK
L [7...0]
1111 1111 ACK STOP
VoutB = 5.0 V
L [7...0]
0000 0000 ACK STOP
VoutA = Hi-Z
L [7...0]
0000 0000 ACK STOP
VoutB = Hi-Z
L [7...0]
0000 0000 ACK STOP
VoutC = Hi-Z
L [7...0]
0000 0000 ACK STOP
VoutD = Hi-Z
L [7...0]
0000 0000 ACK STOP
VoutD = 0 V
L [7...0]
0000 0000 ACK STOP
VoutD = 0 V
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