Rainbow Electronics MAX1068 - Manual (Page 4)

MAX1067/MAX1068
Multichannel, 14-Bit, 200ksps Analog-to-Digital
Converters
4 _______________________________________________________________________________________
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
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
DIGITAL OUTPUT (DOUT, DSPX, EOC) (DV
DD = +2.7V to +5.25V)
Output High Voltage V OH I SOURCE = 0.5mA
DV DD -
0.4
V
I SINK = 10mA, DV DD = +4.75V to +5.25V 0.8
Output Low Voltage V
OL
I SINK = 1.6mA, DV DD = +2.7V to +5.25V 0.4
V
Tri-State Output Leakage Current I L
CS = DV
DD ±0.1 ±10 µA
Tri-State Output Capacitance C OUT
CS = DV
DD 15 pF
POWER SUPPLIES
Analog Supply AV
DD
4.75 5.25 V
Digital Supply DV DD 2.70 5.25 V
External reference 2.0 2.9
200ksps
Internal reference 2.9 3.8
External reference 1.0
100ksps
Internal reference 2.0
External reference 0.1
10ksps
Internal reference 1.1
External reference 0.01
Analog Supply Current (Note 8) I
AVDD
1ksps
Internal reference 1.01
mA
200ksps 0.87 1.3
100ksps 0.45
10ksps 0.045
Digital Supply Current I DVDD
DOUT =
all zeros
1ksps 0.005
mA
Internal reference and
reference buffer on
between conversions
1.01
Power-Down Supply Current
I AVDD +
I DVDD
CS = DV
DD ,
SCLK = 0,
DIN = 0,
DSPR = DV
DD
Internal reference on,
reference buffer off
between conversions
0.43
mA