Datasheet

MAX11047–MAX11049/MAX11057–MAX11059
4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
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ELECTRICAL CHARACTERISTICS (continued)
V
AVDD
= 4.75V to 5.25V, V
DVDD
= +2.7V to 5.25V, V
AGNDS
= V
AGND
= V
DGND
= 0V, V
REFIO
= internal reference, C
RDC
= 4 x 33µF,
C
REFIO
= 0.1µF, C
AVDD
= 4 x 0.1µF || 10µF, C
DVDD
= 3 x 0.1µF || 10µF; all digital inputs at DVDD or DGND, unless otherwise noted.
T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX11047/MAX11048/MAX11049,
f
IN
= 10kHz, full-scale input
90.5 92
Signal-to-Noise and Distortion
Ratio
SINAD
MAX11057/MAX11058/MAX11059,
f
IN
= 10kHz, full-scale input
84.5 85.2
dB
MAX11047/MAX11048/
MAX11049
98 108
Spurious-Free Dynamic Range SFDR
f
IN
= 10kHz,
full-scale input
MAX11057/MAX11058/
MAX11059
95 108
dB
MAX11047/MAX11048/
MAX11049
-108 -98
Total Harmonic Distortion THD
f
IN
= 10kHz,
full-scale input
MAX11057/MAX11058/
MAX11059
-108 -95
dB
Channel-to-Channel Crosstalk
f
IN
= 60Hz, full scale and ground on
adjacent channel (Note 2)
-126 -100 dB
ANALOG INPUTS (CH0–CH7)
Input Voltage Range (Note 3) 0
1.22 x
V
REFIO
V
Input Leakage Current -1 +1 µA
Input Capacitance 15 pF
Input-Clamp Protection Current Each input simultaneously -20 +20 mA
TRACK AND HOLD
Throughput Rate Per channel 250 ksps
Acquisition Time t
ACQ
1 µs
-3dB point 4
Full-Power Bandwidth
-0.1dB point > 0.2
MHz
Aperture Delay 10 ns
Aperture-Delay Matching 100 ps
Aperture Jitter 50 ps
RMS
INTERNAL REFERENCE
REFIO Voltage V
REF
4.080 4.096 4.112 V
REFIO Temperature Coefficient ±4 ppm/°C
EXTERNAL REFERENCE
Input Current -10 +10 µA
REF Voltage Input Range V
REF
3.00 4.25 V
REF Input Capacitance 15 pF
DIGITAL INPUTS (CR0–CR3, RD, WR, CS , CONVST)
Input-Voltage High V
IH
V
DVDD
= 2.7V to 5.25V 2 V
Input-Voltage Low V
IL
V
DVDD
= 2.7V to 5.25V 0.8 V
Input Capacitance C
IN
10 pF
Input Current I
IN
V
IN
= 0 or V
DVDD
±10 µA