MEC1404 Datasheet, PDF (500/572 Pages) Microchip Technology – Keyboard and Embedded Controller Products for Notebook PC

MEC140X/1X
42.2.6 DAC ELECTRICAL CHARACTERISTICS
TABLE 42-9: DC CHARACTERISTICS: DAC
DC CHARACTERISTICS
Standard Operating Conditions (unless otherwise noted)
Symbol
Characteristic
Min
Typ
Max
Units
Comments
V_RNG
RES
ACC
INL
DNL
E_OFF
E_G
R_IN
Output Voltage Range for
Guaranteed Specifications
Resolution
Accuracy
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
V_REF Input Impedance
10%
–
90%
V
Range of (input-AVSS)
12
–
–
Bits Guaranteed Monotonic
–
2
4
LSB
–
±2
±4
LSB Guaranteed Monotonic
-1
±1
<+2
LSB Guaranteed Monotonic
-5
20
36
mV
-2
0
+2
% of FS
–
130
–
kΩ
For each DAC
–
65
–
kΩ
With both DACs
enabled
DAC Output Buffer
RL
Resistive Output Load imped-
2
ance
CL
Output Load capacitance
–
–
–
–
50
I_OUT
R_OUT
Output current drive strength
Output impedance
1.5
–
–
3.34
3.60
4.01
2.67
2.90
3.34
kΩ
Minimum external load
resistance
pF
Maximum external load
capacitance
mA Sink and Source
Ω
DAC0
Ω
DAC1
TABLE 42-10: AC CHARACTERISTICS: DAC
AC CHARACTERISTICS
Standard Operating Conditions (unless otherwise noted)
Symbol
Characteristic
Min
Typ
Max
Units
Comments
F_S
Sampling Frequency
T_ST
Settling Time
—
—
—
1
1
MSPS Frequency for a small
variation of input (1
LSB)
2
µS
DS00001956D-page 500
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