DS4830 Datasheet, PDF (4/29 Pages) Maxim Integrated Products – Optical Microcontroller 16-Bit MAXQ20 Low-Power Microcontroller

DS4830
Optical Microcontroller
DAC DC ELECTRICAL CHARACTERISTICS
(V_DD = 3.0V to 3.6V, T_A = -40NC to +85NC, unless otherwise noted. Typical values are at V_DD = 3.3V, T_A = +25NC.)
PARAMETER
DAC Resolution
DAC Internal Reference Accuracy
SYMBOL
CONDITIONS
2.5V internal reference
MIN
12
-1.25
TYP MAX
+1.25
DAC Internal Reference Power-Up
Speed
99% settled
10
Reference Input Full-Scale Range
(REFINA, REFINB)
1
2.5
DAC Operating Current
I_DACS
Per channel
See the DC Electrical
Characteristics
DAC Integral Nonlinearity
DACINL 12-bit at 2.5V reference
12
DAC Differential Nonlinearity
DACDNL 12-bit at 2.5V reference
1
DAC Offset
V_OFFSET-DAC At code “0”
0
18
DAC Source Load Regulation
I_DAC-SOURCE 0 to full-scale output
8.6
DAC Sink Capability and Sink Load
Regulation
R_DAC-SINK
I_DAC-SINK
0 to 0.5V output, limited by output
buffer impedance
0.5V to full-scale output
500
11.5
DAC Settling Time
t_DAC
10
UNITS
Bits
%
Fs
V
LSB
LSB
mV
mV/mA
I
mV/mA
Fs
FAST COMPARATOR/QUICK TRIPS DC ELECTRICAL CHARACTERISTICS
(V_DD = 3.0V to 3.6V, T_A = -40NC to +85NC, unless otherwise noted. Typical values are at V_DD = 3.3V, T_A = +25NC.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP MAX
Fast Comparator Resolution
8
Fast Comparator Internal Reference
Accuracy
-1
+1
Fast Comparator Operating Current I_FASTCOMP
See the DC Electrical
Characteristics
Fast Comparator Full Scale
Fast Comparator Integral
Nonlinearity
V_FS-COMP
INL
Differential mode, 2.2nF capacitor
at input
2.36
2.42 2.48
2
Fast Comparator Differential
Nonlinearity
DNL
Differential mode, 2.2nF capacitor
at input
1
Fast Comparator Offset
Fast Comparator Input Resistance
Fast Comparator Input Capacitance
Fast Comparator Sample Rate
V_OFFSET-COMP
R_IN-COMP
C_IN-COMP
f_COMP
(Note 6)
2
15
4
625
UNITS
Bits
%
V
LSB
LSB
LSB
MI
pF
ksps
����������������������������������������������������������������� Maxim Integrated Products   4