Settling Time (ns)
0
100
200
300
400
500
600
700
800
900
1000
1100
0 50 100 150 200 250 300 350 400 450 500
DAC Step Size (Codes)
15 Codes 7 Codes 3 Codes 1 Code
DAC Accuracy
95
TMS320F28069
,
TMS320F28068
,
TMS320F28067
,
TMS320F28066
TMS320F28065, TMS320F28064, TMS320F28063, TMS320F28062
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SPRS698F –NOVEMBER 2010–REVISED MARCH 2016
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TMS320F28064 TMS320F28063 TMS320F28062
Detailed DescriptionCopyright © 2010–2016, Texas Instruments Incorporated
(1) Hysteresis on the comparator inputs is achieved with a Schmidt trigger configuration. This results in an effective 100-kΩ feedback
resistance between the output of the comparator and the non-inverting input of the comparator.
6.9.2.3.1 On-Chip Comparator/DAC Electrical Data/Timing
Table 6-32. Electrical Characteristics of the Comparator/DAC
CHARACTERISTIC MIN TYP MAX UNIT
Comparator
Comparator Input Range V
SSA
– V
DDA
V
Comparator response time to PWM Trip Zone (Async) 30 ns
Input Offset ±5 mV
Input Hysteresis
(1)
35 mV
DAC
DAC Output Range V
SSA
– V
DDA
V
DAC resolution 10 bits
DAC settling time See Figure 6-31
DAC Gain –1.5%
DAC Offset 10 mV
Monotonic Yes
INL ±3 LSB
Figure 6-31. DAC Settling Time