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S9S12G128F0CLF Datasheet, PDF (1093/1158 Pages) Freescale Semiconductor, Inc – MC9S12G Family Reference Manual | |||
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Electrical Characteristics
A.6 DAC Characteristics
This section describes the electrical characteristics of the digital to analog converter.
Table A-23. Static Electrical Characteristics - DAC_8B5V
Characteristics noted under conditions 3.13V <= VDDA <= 5.5V>, -40ËC < Tj < 150ËC >, VRH=VDDA, VRL=VSSA
unless otherwise noted. Typical values noted reï¬ect the approximate parameter mean at TA = 25ËC under nominal
conditions unless otherwise noted.
Num C
Ratings
Symbol
Min
Typ
Max
Unit
1
Supply Current of DAC_8B5V
D buffer disabled
P buffer enabled
2
Reference current
D reference disabled
P reference enabled
3 D Resolution
4 C Relative Accuracy
@ ampliï¬er output
5 P Differential Nonlinearity @ ampliï¬er output
6 D DAC Range A (FVR bit = 1)
7 D DAC Range B (FVR bit = 0
8 C Output Voltage
unbuffered range A or B (load >= 50Mâ¦)
9 P Output Voltage (DRIVE bit = 0)1
buffered range A (load >= 100K⦠to VSSA)
buffered range A (load >= 100K⦠to VDDA)
buffered range B (load >= 100K⦠to VSSA)
buffered range B (load >= 100K⦠to VDDA)
10 P Output Voltage (DRIVE bit = 1)2
buffered range B with 6.4K⦠load into resistor
divider of 800⦠/6.56K⦠between VDDA and
VSSA.
(equivalent load is >= 65K⦠to VSSA) or
(equivalent load is >= 7.5K⦠to VDDA)
11 D Buffer Output Capacitive load
12 P Buffer Output Offset
13 P Settling time
14 D Reverence voltage high
1 DRIVE bit = 1 is not recomended in this case.
2 DRIVE bit = 0 is not allowed with this high load.
Ibuf
Iref
INL
DNL
Vout
Vout
Vout
Vout
Vout
Cload
Voffset
tdelay
Vrefh
-
-
5
µA
200
600
1000
-
-
1
µA
50
150
8
bit
-0.5
+0.5
LSB
-0.5
+0.5
LSB
0...255/256(VRH-VRL)+VRL
V
32...287/320(VRH-VRL)+VRL
V
full DAC Range A or B
V
0
-
VDDA-0.15
0.15
-
VDDA
V
full DAC Range B
full DAC Range B
V
0
-
100
pF
-30
-
+30
mV
-
3
5
µs
VDDA-0.1V VDDA VDDA+0.1V V
Freescale Semiconductor
MC9S12G Family Reference Manual, Rev.1.10
1093
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