16-Bit, Ultra-Low Power, Voltage Output Digital-to-Analog ... - dreamm

www.ti.com
At T A = +25°C, V REF = +2.5 V unless otherwise noted
TYPICAL CHARACTERISTICS: V DD = +3 V (continued)
DAC8830
DAC8831
SLAS449B–FEBRUARY 2005–REVISED APRIL 2006
1.00
0.75
0.50
LINEARITY ERROR
vs DIGITAL INPUT CODE
T A = +25C
V REF = 3 V
1.00
0.75
0.50
DIFFERENTIAL LINEARITY ERROR
vs DIGITAL INPUT CODE
T A = +25C
V REF = 3 V
INL (LSB)
0.25
0
−0.25
DNL (LSB)
0.25
0
−0.25
−0.50
−0.50
−0.75
−0.75
−1.00
0 8192 16384 24576 32768 40960 49152 57344 65536
Digital Input Code
−1.00
0 8192 16384 24576 32768 40960 49152 57344 65536
Digital Input Code
Figure 32. Figure 33.
0.75
LINEARITY ERROR
vs REFERENCE VOLTAGE
1.00
GAIN ERROR
vs TEMPERATURE
Linearity Error (LSB)
0.50
DNL
0.25
0
−0.25
INL
−0.50
0.5 1.0 1.5 2.0 2.5 3.0 3.5
Reference Voltage (V)
Gain Error (LSB)
0.75
0.50
0.25
0
−0.25
−0.50
−0.75
V DD = 3 V
V REF = 2.5 V
Bipolar Mode
Unipolar Mode
−1.00
−60 −40 −20 0 20 40 60 80 100 120 140
Temperature (C)
Figure 34. Figure 35.
Zero−Code Error (LSB)
0.50
0.25
0
−0.25
−0.50
Bipolar Mode
ZERO-CODE ERROR
vs TEMPERATURE
Unipolar Mode
V DD = 3 V
V REF = 2.5 V
Reference Current (µA)
300
250
200
150
100
50
REFERENCE CURRENT
vs CODE (UNIPOLAR MODE)
V REF = 1.5 V
−0.75
−60 −40 −20 0 20 40 60 80 100 120 140
Temperature (C)
0
0
8192
16384 24576 32768 40960
Digital Input Code
49152 57344 65536
Figure 36. Figure 37.
Submit Documentation Feedback
13