MAX11043 Datasheet, PDF (3/33 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
MIN
DYNAMIC PERFORMANCE (PGA Enabled, PGA Gain = 8 x (25kHz -1dB Full-Scale Signal))
Maximum Full-Scale Input
ADC modulator gain = 1
Input-Referred Noise Spectral
Density
100kHz
TYP MAX UNITS
150
mV_P-P
20
nV/√Hz
Second Harmonic to
Fundamental
Third Harmonic to Fundamental
Spurious-Free Dynamic Range
Channel-to-Channel Isolation
SFDR
Unused channels are shorted and
unconnected
-92
dB
-94
dB
92
dB
110
dB
Channel Phase Matching
Between all channels, including complete
analog signal path
-0.05
+0.05 Degrees
DYNAMIC PERFORMANCE (PGA Enabled, PGA Gain = 16 x (25kHz -1dB Full-Scale Signal))
Maximum Full-Scale Input
Input-Referred Noise Spectral
Density
ADC modulator gain = 1
100kHz
75
mV_P-P
15
nV/√Hz
Second Harmonic to
Fundamental
-99
dB
Third Harmonic to Fundamental
-93
dB
Spurious-Free Dynamic Range
SFDR
93
dB
Channel-to-Channel Isolation
Unused channels are shorted and
unconnected
106
dB
Channel Phase Matching
Between all channels, including complete
analog signal path
-0.075
+0.075 Degrees
DYNAMIC PERFORMANCE (EQ Mode (5kHz -1dB Full-Scale Signal, CONFIG_ Register Bit 3 = 1))
Maximum Full-Scale Input
Input-Referred Noise Spectral
Density
ADC modulator gain = 1 (Note 2)
100kHz
800
mV_P-P
6
nV/√Hz
Second Harmonic to
Fundamental
-80
-90
dB
Third Harmonic to Fundamental
-77
-98
dB
Spurious-Free Dynamic Range
SFDR Input referred (Note 3)
77
89
dB
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