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| MAX1193 Datasheet, PDF (4/26 Pages) Maxim Integrated Products – Ultra-Low-Power, 45Msps, Dual 8-Bit ADC | |||
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Ultra-Low-Power, 45Msps, Dual 8-Bit ADC
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 3.0V, OVDD = 1.8V, VREFIN = VDD (internal reference), CL â 10pF at digital outputs, fCLK = 45MHz, CREFP = CREFN = CCOM =
0.33µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
Maximum REFP/REFN/COM Sink
Current
ISINK
2
REFIN Input Resistance
>500
REFIN Input Current
-0.7
UNBUFFERED EXTERNAL REFERENCE (REFIN = GND, VREFP, VREFN, and VCOM are applied externally)
REFP Input Voltage
VREFP - VCOM
0.256
REFN Input Voltage
VREFN - VCOM
-0.256
COM Input Voltage
VCOM
VDD / 2
Differential Reference Input
Voltage
VREF VREFP - VREFN
0.512
REFP Input Resistance
RREFP Measured between REFP and COM
4
REFN Input Resistance
RREFN Measured between REFN and COM
4
DIGITAL INPUTS (CLK, PD0, PD1)
Input High Threshold
CLK
VIH
PD0, PD1
0.7 x
VDD
0.7 x
OVDD
Input Low Threshold
CLK
VIL
PD0, PD1
Input Hysteresis
VHYST
0.1
Digital Input Leakage Current
DIIN CLK at GND or VDD
PD0 and PD1 at OGND or OVDD
Digital Input Capacitance
DCIN
5
DIGITAL OUTPUTS (D7âD0, A/B)
Output Voltage Low
VOL ISINK = 200µA
Output Voltage High
Tri-State Leakage Current
Tri-State Output Capacitance
POWER REQUIREMENTS
Analog Supply Voltage
Digital Output Supply Voltage
VOH ISOURCE = 200µA
ILEAK
COUT
VDD
OVDD
0.8 x
OVDD
5
2.7
3.0
1.8
MAX
0.3 x
VDD
0.3 x
OVDD
±5
±5
0.2 x
OVDD
±5
3.6
VDD
UNITS
mA
kâ¦
µA
V
V
V
V
kâ¦
kâ¦
V
V
V
µA
pF
V
V
µA
pF
V
V
4 _______________________________________________________________________________________
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