MAX11661_1111 Datasheet, PDF (13/28 Pages) Maxim Integrated Products – 500ksps, Low-Power, Serial 12-/10-/8-Bit ADCs

500ksps, Low-Power,
Serial 12-/10-/8-Bit ADCs
ELECTRICAL CHARACTERISTICS (MAX11661)
(VDD = 2.2V to 3.6V. fSCLK = 8MHz, 50% duty cycle, 500ksps. CDOUT = 10pF, TA = -40NC to +125NC, unless otherwise noted. Typical
values are at TA = +25NC.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC ACCURACY
Resolution
8
Bits
Integral Nonlinearity
INL
Q0.25 LSB
Differential Nonlinearity
DNL No missing codes
Q0.25 LSB
Offset Error
OE
Q0.45 Q0.8 LSB
Gain Error
GE
Excluding offset and reference errors
Q0.04 Q0.5 LSB
Total Unadjusted Error
TUE
Q0.75
LSB
DYNAMIC PERFORMANCE (fAIN = 250kHz)
Signal-to-Noise and Distortion
SINAD
49
49.5
dB
Signal-to-Noise Ratio
SNR
49
49.5
dB
Total Harmonic Distortion
THD
-70
-67
dB
Spurious-Free Dynamic Range
SFDR
63
66
dB
Intermodulation Distortion
Full-Power Bandwidth
IMD f1 = 239.8kHz, f2 = 200.2kHz
-3dB point
-65
dB
40
MHz
Full-Linear Bandwidth
SINAD > 49dB
2.5
MHz
Small-Signal Bandwidth
45
MHz
CONVERSION RATE
Throughput
5
500 ksps
Conversion Time
1.56
Fs
Acquisition Time
Aperture Delay
tACQ
From CS falling edge
52
ns
4
ns
Aperture Jitter
15
ps
Serial-Clock Frequency
ANALOG INPUT (AIN)
fCLK
0.08
8
MHz
Input Voltage Range
Input Leakage Current
Input Capacitance
DIGITAL INPUTS (SCLK, CS)
VAIN
IILA
CAIN
Track
Hold
0
VDD
V
0.002 Q1
FA
20
pF
4
Digital Input High Voltage
VIH
0.75 x
VVDD
V
Digital Input Low Voltage
VIL
0.25 x
VVDD
V
Digital Input Hysteresis
VHYST
0.15
VVDD
V
Digital Input Leakage Current
Digital Input Capacitance
IIL
Inputs at GND or VDD
CIN
0.001 Q1
FA
2
pF
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