MAX194 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX194 Datasheet PDF : 24 Pages
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14-Bit, 85ksps ADC with 10µA Shutdown
ELECTRICAL CHARACTERISTICS (continued)
(VDDD = VDDA = +5V, VSSD = VSSA = -5V, fCLK = 1.7MHz, VREF = +5V, TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
DIGITAL INPUTS (CLK, CS, CONV, RESET, SCLK, BP/UP/SHDN)
CLK, CS, CONV, RESET, SCLK
Input High Voltage
VIH
VDDD = 5.25V
MIN TYP MAX UNITS
2.4
V
CLK, CS, CONV, RESET, SCLK
Input Low Voltage
VIL
VDDD = 4.75V
0.8
V
CLK, CS, CONV, RESET, SCLK
Input Capacitance (Note 2)
10
pF
CLK, CS, CONV, RESET, SCLK
Input Current
Digital inputs = 0 or 5V
±10
µA
BP/UP/SHDN
Input High Voltage
VIH
VDDD - 0.5
V
BP/UP/SHDN
Input Low Voltage
VIL
0.5
V
BP/UP/SHDN
Input Current, High
IIH
BP/UP/SHDN = VDDD
4.0
µA
BP/UP/SHDN
Input Current, Low
IIL
BP/UP/SHDN = 0V
-4.0
µA
BP/UP/SHDN
Mid Input Voltage
VIM
1.5
VDDD - 1.5 V
BP/UP/SHDN Voltage,
Floating
VFLT BP/UP/SHDN = open
2.75
V
BP/UP/SHDN Max Allowed
Leakage, Mid Input
BP/UP/SHDN = open
-100
+100 nA
DIGITAL OUTPUTS (DOUT, EOC)
Output Low Voltage
VOL VDDD = 4.75V, ISINK = 1.6mA
0.4
V
Output High Voltage
VOH VDDD = 4.75V, ISOURCE = 1mA
VDDD - 0.5
V
DOUT Leakage Current
ILKG DOUT = 0 or 5V
±10
µA
Output Capacitance (Note 4)
10
pF
POWER REQUIREMENTS
VDDD
4.75
5.25
V
VSSD
-5.25
-4.75
V
VDDA
By supply-rejection test
4.75
5.25
V
VSSA
By supply-rejection test
-5.25
-4.75
V
VDDD Supply Current
IDDD VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V
2.5
4
mA
VSSD Supply Current
ISSD VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V
0.9
2
mA
VDDA Supply Current
IDDA VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V
3.8
5
mA
VSSA Supply Current
ISSA VDDD = VDDA = 5.25V, VSSD = VSSA = -5.25V
3.8
5
mA
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