
MAX1167/MAX1168
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
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3
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = +4.75V to +5.25V, fSCLK = 4.8MHz external clock (50% duty cycle), 24 clocks/conversion (200ksps), external VREF
= +4.096V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Internal Clock Frequency
fINTCLK
Internal clock
3.2
4.0
MHz
Aperture Delay
tAD
15
ns
Aperture Jitter
tAJ
<50
ps
8-bit-wide data-transfer mode
4.17
200.00
16-bit-wide data-transfer mode
3.125
150.00
Internal clock, single conversion, 8-bit-wide
data-transfer mode
89
Internal clock, single conversion, 16-bit-
wide data-transfer mode
68
Internal clock, scan mode, 8-bit-wide data-
transfer mode (four conversions)
103
Sample Rate (Note 7)
fS
External clock, scan mode, 16-bit-wide
data-transfer mode (four conversions)
82
ksps
Duty Cycle
45
55
%
ANALOG INPUT (AIN_)
Input Range
VAIN_
0
VREF
V
Input Capacitance
CAIN_
45
pF
EXTERNAL REFERENCE
Input Voltage Range
VREF
(Note 8)
3.8
AVDD
- 0.2
V
VAIN_ = 0
34
SCLK idle
0.1
Input Current
IREF
CS = DVDD, SCLK idle
0.1
μA
INTERNAL REFERENCE
Reference Voltage
VREFIN
4.042
4.096
4.136
V
Reference Short-Circuit Current
IREFSC
13
mA
Reference Temperature
Coefficient
±25
ppm/°C
Reference Wake-Up Time
tRWAKE
VREF = 0
5
ms
DIGITAL INPUTS (SCLK,
CS, DSEL, DSPR, DIN) (DVDD = +2.7V to +5.25V)
Input High Voltage
VIH
0.7
DVDD
V
Input Low Voltage
VIL
0.3
DVDD
V
Input Leakage Current
IIN
Digital inputs = 0 to DVDD
±0.1
±1
μA
Input Hysteresis
VHYST
0.2
V
Input Capacitance
CIN
15
pF