MAX11043 Datasheet, PDF (4/33 Pages) Maxim Integrated Products – 4-Channel, 16-Bit, Simultaneous-Sampling ADCs with PGA, Filter, and 8-/12-Bit Dual-Stage DAC

4-Channel, 16-Bit, Simultaneous-Sampling ADCs
with PGA, Filter, and 8-/12-Bit Dual-Stage DAC
ELECTRICAL CHARACTERISTICS (continued)
(V_AVDD = +3.0V to +3.6V, V_DVDD = +3.0V, C_DVREG = 10µF, V_AGND = V_DGND = 0V, common-mode input voltage = V_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 =
0V, 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. DIFF = 1. T_A = T_MIN to T_MAX, unless otherwise noted
(Note 1). Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
Channel-to-Channel Isolation
Unused channels are shorted and
unconnected
Channel Phase Matching
Between all channels, including complete
analog signal path
DYNAMIC PERFORMANCE (All Modes)
Conversion Rate
Minimum Throughput
Power-Supply Rejection Ratio
DCPSRR
All 4 channels
2 channels only
ANALOG INPUTS (AINAP/AINAN, AINBP/AINBN, AINCP/AINCN, AINDP/AINDN)
Absolute Voltage Any Input
(Note 4)
Input Impedance (Note 5)
Direct input to ADC,
gain = 1
DIFF = 1
DIFF = 0
Direct input to ADC, gain = 2
Direct input to ADC, gain = 4 or 8
Input Capacitance
PGA gain = 16
EQ mode only
EQ FILTER (Analog and Digital)
Unity-Gain Frequency
Default
Lower Transition Frequency
Upper Transition Frequency
LP FILTER
Default, from 40dB/decade to 0dB/decade
Default, from 0dB/decade to -80dB/decade
-3dB Corner Frequency
REFERENCE INPUT
REF_ Input Voltage Range
Input Current
Default
V_{REF_}
REFBP Input Voltage Range
Input Current
V_REFBP
REFDAC Input Voltage Range
Input Resistance
V_REFDAC
MIN
80
-0.12
0
25
100
7
7
5.5
2
2
1
17
TYP MAX UNITS
104
dB
+0.12 Degrees
400
ksps
800
5
ksps
50
dB
V_AVDD
V
kΩ
50
pF
5
kHz
190
kHz
205
kHz
205
kHz
2.5
2.8
V
150
µA
2.5
2.8
V
700
µA
1.25
1.4
V
kΩ
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