MAX1241BCSLASHD datasheet(3/15 Pages) MAXIM

3 / 15 page

ppm/°C

+2.7V, Low-Power,

12-Bit Serial ADCs in 8-Pin SO

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ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.7V to +3.6V (MAX1240); VDD = +2.7V to +5.25V (MAX1241); 73ksps, fSCLK = 2.1MHz (50% duty cycle); MAX1240—4.7µF

capacitor at REF pin, MAX1241—external reference; VREF = 2.500V applied to REF pin; TA = TMIN to TMAX; unless otherwise noted.)

VIN = 0V or VDD

µA

TA = +25°C

µA

100

150

±0.01

±1

IIN

SCLK, CS Input Leakage

0.2

Input Current

CONDITIONS

VSHDN = 0V

µA

±0.01

VHYST

SCLK, CS Input Hysteresis

VSHDN = 0V or VDD

µA

REF Input Current in Shutdown

±4.0

SHDN Input Current

Input Resistance

0.4

VSL

SHDN Input Low Voltage

(Note 5)

VDD - 0.4

VSH

SHDN Input High Voltage

CIN

REF Output Voltage

SCLK, CS Input Capacitance

SHDN = unconnected

±100

SHDN Max Allowed Leakage,

Mid Input

VDD/2

VFLT

SHDN Voltage, Unconnected

1.1

VDD - 1.1

VSM

SHDN Input Mid Voltage

ISINK = 5mA

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

0.4

VOL

Output Voltage Low

CS = VDD (Note 5)

COUT

Three-State Output Capacitance

CS = VDD

µA

ISOURCE = 0.5mA

±0.01

±10

Three-State Leakage Current

VDD - 0.5

VOH

VDD

≤ 3.6V

0.8

VIL

µF

0.1

Capacitive Bypass at REF

SCLK, CS Input Low Voltage

2.0

VIH

SCLK, CS Input High Voltage

Output Voltage High

ISINK = 16mA

VDD > 3.6V (MAX1241)

0.8

3.0

2.480

2.500

2.520

Input Voltage Range

1.00

VDD +

50mV

MAX1240AC/BC

ppm/°C

REF Temperature Coefficient

±30

±50

REF Short-Circuit Current

MAX1240AE/BE

±30

±60

MAX1240AM/BM

±30

±80

0mA to 0.2mA output load

Load Regulation (Note 4)

0.35

µF

Capacitive Bypass at REF

4.7

MAX1240C

±30

DIGITAL OUTPUT: DOUT

DIGITAL INPUTS: SCLK, C

S, S

EXTERNAL REFERENCE (VREF = 2.500V)

INTERNAL REFERENCE (MAX1240 only)

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