MAX147ACAP Просмотр технического описания (PDF) - Maxim Integrated

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MAX147ACAP

+2.7V, Low-Power, 8-Channel, Serial 12-Bit ADCs

Maxim Integrated 

+2.7V, Low-Power, 8-Channel,

Serial 12-Bit ADCs

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.7V to +3.6V (MAX146); VDD = +2.7V to +5.25V (MAX147); COM = 0V; fSCLK = 2.0MHz; external clock (50% duty cycle); 15

clocks/conversion cycle (133ksps); MAX146—4.7µF capacitor at VREF pin; MAX147—external reference, VREF = 2.500 V applied to

VREF pin; TA = TMIN to TMAX; unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

DIGITAL INPUTS (DIN, SCLK, CS, SHDN)

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

VIH

VIL

VHYST

IIN

CIN

VSH

VSM

VSL

IS

VFLT

VDD ≤ 3.6V

VDD > 3.6V, MAX147 only

VIN = 0V or VDD

(Note 9)

SHDN = 0V or VDD

SHDN = FLOAT

SHDN Maximum Allowed

Leakage, Mid Input

SHDN = FLOAT

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

DIGITAL OUTPUTS (DOUT, SSTRB)

Output Voltage Low

VOL

ISINK = 5mA

ISINK = 16mA

0.4

V

0.8

Output Voltage High

Three-State Leakage Current

Three-State Output Capacitance

POWER REQUIREMENTS

VOH

IL

COUT

ISOURCE = 0.5mA

CS = VDD

CS = VDD (Note 9)

VDD - 0.5

V

±0.01 ±10 µA

15

pF

Positive Supply Voltage

MAX146

VDD

MAX147

2.70

3.60

V

2.70

5.25

Operating mode, full-scale input

1.2

2.0 mA

Positive Supply Current, MAX146

IDD VDD = 3.6V Fast power-down

Full power-down

30

70

µA

1.2

10

Positive Supply Current, MAX147

IDD

Operating mode,

full-scale input

VDD = 5.25V

VDD = 3.6V

1.8

2.5

mA

0.9

1.5

Positive Supply Current, MAX147

IDD Full power-down

VDD = 5.25V

VDD = 3.6V

2.1

15

µA

µA

1.2

10

Supply Rejection (Note 10)

PSR

Full-scale input, external reference = 2.500V,

VDD = 2.7V to VDD(MAX)

±0.3

mV

4 _______________________________________________________________________________________

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