Datasheet

MAX1407/MAX1408/MAX1409/MAX1414
Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
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ELECTRICAL CHARACTERISTICS (continued)
(DV
DD
= AV
DD
= +2.7V to 3.6V, 4.7µF at REF, internal V
REF
, 18nF between CPLL and AV
DD
, 32.768kHz crystal across CLKIN and
CLKOUT, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX U N I T S
RESET Output Leakage AV
DD
> V
TH
, RESET deasserted 0.002 0.1 µA
Turn-On Time 2ms
CRYSTAL OSCILLATOR
Crystal Frequency AV
DD
= +3V 32.768 kHz
Crystal Load Capacitance 6pF
Oscillator Stability AV
D D
= + 1.8V to + 3.6V , excl ud i ng cr ystal 0 ppm/V
Oscillator Startup Time 1.5 s
PLL
FOUT Frequency AV
DD
= +3V 2.4576 MHz
Absolute Clock Jitter Cycle-to-cycle 10 ns
Overtemperature excluding crystal,
T
A
= T
MIN
to T
MAX
0p p m /° C
Frequency Tolerance/Stability
Over supp l y vol tag e, + 2.7V < AV
D D
< +3.6V 0 p p m /m V
FOUT Rise/Fall Time 20% to 80% waveform, C
L
= 30pF 15 30 ns
Duty Cycle 40 50 60 %
DIGITAL INPUTS (DIN, SCLK, CS, WU1, WU2)
Input High Voltage DV
DD
= +1.8V to +3.6V
0.7 x
DV
DD
V
Input Low Voltage DV
DD
= +1.8V to +3.6V
0.3 x
DV
DD
V
Input Hysteresis DV
DD
= +3V 200 mV
DIN, SCLK, CS, Input Current V
IN
= 0 or V
IN
= DV
DD
±0.01 ±10 µA
WU1, WU2 Input Current V
IN
= AV
DD
0.01 10 µA
WU1, WU2 Pullup Current V
IN
= 0 10 µA
Input Capacitance 10 pF
DIGITAL OUTPUTS (DOUT, FOUT, INT, DRDY, SHDN, D0)
DOUT, FOUT, DRDY, INT
Output Low Voltage
V
OL
I
SINK
= 1mA, DV
DD
= +1.8V to +3.6V 0.4 V
DOUT, FOUT, DRDY, INT,
SHDN Output High Voltage
V
OH
I
SOURCE
= 0.2mA, DV
DD
= +1.8V to +3.6V 0.8 x DV
DD
V
DOUT Three-State Leakage ±0.01 ±10 µA
DOUT Three-State Capacitance 15 pF
I
SINK
= 1mA, DV
DD
= +1.8V to +3.6V 0.4
SHDN Output Low Voltage
(MAX1407/MAX1408/MAX1414
only)
I
SINK
= 50µA, DV
DD
= +1.8V to +3.6V
0.04 x
DV
DD
V