Datasheet

MAX1167/MAX1168
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= +4.75V to +5.25V, f
SCLK
= 4.8MHz external clock (50% duty cycle), 24 clocks/conversion (200ksps), external V
REF
= +4.096V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Internal Clock Frequency f
INTCLK
Internal clock 3.2 4.0 MHz
Aperture Delay t
AD
15 ns
Aperture Jitter t
AJ
<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) f
S
External clock, scan mode, 16-bit-wide
data-transfer mode (four conversions)
82
ksps
Duty Cycle 45 55 %
ANALOG INPUT (AIN_)
Input Range V
AIN
_ 0 V
REF
V
Input Capacitance C
AIN
_ 45 pF
EXTERNAL REFERENCE
Input Voltage Range V
REF
(Note 8) 3.8
AV
DD
- 0.2
V
V
AIN
_ = 0 34
SCLK idle 0.1
Input Current I
REF
CS = DV
DD
, SCLK idle 0.1
μA
INTERNAL REFERENCE
Reference Voltage V
REFIN
4.042 4.096 4.136 V
Reference Short-Circuit Current I
REFSC
13 mA
Reference Temperature
Coefficient
±25 ppm/°C
Reference Wake-Up Time t
RWAKE
V
REF
= 0 5 ms
DIGITAL INPUTS (SCLK, CS, DSEL, DSPR, DIN) (DV
DD
= +2.7V to +5.25V)
Input High Voltage V
IH
0.7 
DV
DD
V
Input Low Voltage V
IL
0.3 
DV
DD
V
Input Leakage Current I
IN
Digital inputs = 0 to DV
DD
±0.1 ±1 μA
Input Hysteresis V
HYST
0.2 V
Input Capacitance C
IN
15 pF