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| MAX148 Datasheet, PDF (4/24 Pages) Maxim Integrated Products – +2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs | |||
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+2.7V to +5.25V, Low-Power, 8-Channel,
Serial 10-Bit ADCs
ELECTRICAL CHARACTERISTICS (continued)
VDD = +2.7V to +5.25V; COM = 0V; fSCLK = 2.0MHz; external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps);
MAX149â4.7µF capacitor at VREF pin; MAX148âexternal reference, VREF = 2.500 V applied to VREF pin; TA = TMIN to TMAX; unless
otherwise noted.)
PARAMETER
SYMBOL
DIGITAL INPUTS (DIN, SCLK, CS, SHDN)
CONDITIONS
DIN, SCLK, CS Input High Voltage
DIN, SCLK, CS Input Low Voltage
DIN, SCLK, CS Input Hysteresis
DIN, SCLK, CS Input Leakage
DIN, SCLK, CS Input Capacitance
SHDN Input High Voltage
SHDN Input Mid Voltage
SHDN Input Low Voltage
SHDN Input Current
SHDN Voltage, Floating
SHDN Maximum Allowed
Leakage, Mid Input
VIH
VIL
VHYST
IIN
CIN
VSH
VSM
VSL
IS
VFLT
VDD ⤠3.6V
VDD > 3.6V
VIN = 0V or VDD
(Note 10)
SHDN = 0V or VDD
SHDN = FLOAT
SHDN = FLOAT
DIGITAL OUTPUTS (DOUT, SSTRB)
Output Voltage Low
Output Voltage High
Three-State Leakage Current
Three-State Output Capacitance
POWER REQUIREMENTS
VOL
VOH
IL
COUT
ISINK = 5mA
ISINK = 16mA
ISOURCE = 0.5mA
CS = VDD
CS = VDD (Note 10)
Positive Supply Voltage
Positive Supply Current
VDD
Operating mode,
full-scale input (Note 11)
IDD
IDD Full power-down
VDD = 5.25V
VDD = 3.6V
VDD = 5.25V
VDD = 3.6V
IDD Fast power-down (MAX149)
Supply Rejection (Note 12)
PSR
Full-scale input, external reference = 2.500V,
VDD = 2.7V to 5.25V
MIN TYP MAX UNITS
2.0
V
3.0
0.8
V
0.2
V
±0.01 ±1
µA
15
pF
VDD - 0.4
V
1.1
VDD - 1.1
V
0.4
V
±4.0 µA
VDD / 2
V
±100 nA
0.4
V
0.8
VDD - 0.5
V
±0.01 ±10 µA
15
pF
2.70
5.25
V
1.6
3.0
mA
1.2
2.0
3.5
15
1.2
10
µA
30
70
±0.3
mV
4 _______________________________________________________________________________________
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