MAX11043
4-Channel, 16-Bit, Simultaneous-Sampling ADCs
with PGA, Filter, and 8-/12-Bit Dual-Stage DAC
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
((V
AVDD
= +3.0V to +3.6V, V
DVDD
= +3.0V, C
DVREG
= 10µF, V
AGND
= V
DGND
= 0, common-mode input voltage = AVDD/2, V
REFBP
=
V
REFA
= V
REFB
= V
REFC
= V
REFD
= +2.5V (external reference), V
REFDAC
= V
REFDACH
= +1.25V (external reference), V
REFDACL
= 0,
C
REFBP
= C
REFA
= C
REFB
= C
REFC
= C
REFD
= C
REFDAC
= 1µF, f
SCLK
= 38.4MHz, f
EXCLK
= 38.4MHz (external clock applied to
OSCIN), clock divider set to 4, SHDN = DACSTEP = UP/DWN = DGND, CONVRUN = DVDD, all analog inputs driven directly through
a series 150Ω/330pF anti-alias filter, PGA gain = 1. Default filters and gain settings. T
A
= T
MIN
to T
MAX
, unless otherwise noted (Note 1).
Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
REFDAC_ Input Voltage Range V
REFDAC_
0 1.4 V
Input Resistance 150 kΩ
INTERNAL REFERENCE
Reference Voltage V
REFBP
2.45 2.5 2.55 V
Reference Temperature
Coefficient
100 ppm/°C
CRYSTAL OSCILLATOR (Max ESR 100Ω, 22pF Load Capacitors to DGND)
Maximum Crystal Operating
Frequency
Epson Electronics MA-505 (16MHz) 16 MHz
External Clock Input Frequency
Range
External clock applied to OSCIN 4 40 MHz
Stability Excluding crystal 25 ppm
Startup Time Epson Electronics MA-505 (16MHz) 10 ms
OSCIN Input Low Voltage When driven with external clock source
0.3 x
DVDD
V
OSCIN Input High Voltage When driven with external clock source
0.7 x
DVDD
V
OSCIN Leakage Current -5 +5 µA
DIGITAL INPUTS
Input High Voltage V
IH
0.7 x
DVDD
V
Input Low Voltage V
IL
0.3 x
DVDD
V
Input Hysterisis 15 mV
Input Leakage Current I
IN
V
IN
= 0 or DVDD -1 +1 µA
Input Capacitance C
IN
15 pF
DIGITAL OUTPUTS
Output-Voltage High V
OH
I
SOURCE
= 0.8mA
DVDD
-
0.6
V
Output-Voltage Low V
OL
I
SINK
= 1.6mA 0.4 V
Three-State Leakage Current DOUT only -1 +1 µA
Three-State Output Capacitance DOUT only 15 pF
VOLTAGE REGULATOR
Regulated Digital Supply Voltage DV
REG
Internal use only 2.5 V
POWER REQUIREMENTS
Analog Supply Voltage 3.0 3.6 V
Digital Supply Voltage 3.0 3.6 V
(16 páginas)
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