MAX1248BEEE datasheet(4/24 Pages) MAXIM

4 / 24 page

VDD = 5.25V

+2.7V to +5.25V, Low-Power, 4-Channel,

Serial 10-Bit ADCs in QSOP-16

_______________________________________________________________________________________

1.2

2.0

3.5

Operating mode,

full-scale input (Note 11)

Fast power-down (MAX1248)

±100

SHDN Maximum Allowed

Leakage, Mid Input

VDD / 2

VFLT

SHDN Voltage, Floating

SHDN = FLOAT

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

µA

1.2

IDD

CONDITIONS

Positive Supply Current

1.6

3.0

µA

±0.01

±10

Three-State Leakage Current

VDD - 0.5

VOH

Output Voltage High

0.8

VOL

Output Voltage Low

0.4

2.70

5.25

VDD

Positive Supply Voltage

COUT

Three-State Output Capacitance

Full power-down

CS = VDD (Note 10)

CS = VDD

ISOURCE = 0.5mA

ISINK = 16mA

ISINK = 5mA

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.7V to +5.25V; COM = 0V; fSCLK = 2.0MHz, external clock (50% duty cycle); 15 clocks/conversion cycle (133ksps);

MAX1248—4.7µF capacitor at VREF pin; MAX1249—external reference; VREF = 2.500V applied to VREF pin, TA = TMIN to TMAX,

unless otherwise noted.)

±0.3

PSR

Supply Rejection (Note 12)

VDD = 2.7V to 5.25V, full-scale input,

external reference = 2.500V

DIGITAL OUTPUTS (DOUT, SSTRB)

POWER REQUIREMENTS

IDD

VDD = 5.25V

VDD = 3.6V

VDD = 5.25V

VDD = 3.6V

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