MAX1245ACAP 데이터 시트보기 (PDF) - Maxim Integrated

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MAX1245ACAP

+2.375V, Low-Power, 8-Channel, Serial 12-Bit ADC

Maxim Integrated 

+2.375V, Low-Power, 8-Channel,

Serial 12-Bit ADC

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.375V to +3.3V, COM = 0V, fCLK = 1.5MHz, external clock (50% duty cycle), 15 clocks/conversion cycle (100ksps),

VREF = 2.048V applied to VREF pin, TA = TMIN to TMAX, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

ANALOG/COM INPUTS

Input Voltage Range, Single-

Ended and Differential (Note 6)

Multiplexer Leakage Current

Input Capacitance

Unipolar, COM = 0V

Bipolar, COM = VREF/2

On/off leakage current, VIN = 0V or VDD

(Note 7)

0 to VREF

V

±VREF/2

±0.01 ±1

µA

16

pF

EXTERNAL REFERENCE

VREF Input Voltage Range

(Note 8)

1.0

VDD +

50mV

V

VREF Input Current

VREF Input Resistance

Shutdown VREF Input Current

VREF = 2.048V

82

120 µA

18

25

kΩ

0.01

10

µA

DIGITAL INPUTS (DIN, SCLK, CS, SHDN)

DIN, SCLK, CS Input High Voltage VINH

DIN, SCLK, CS Input Low Voltage VINL

DIN, SCLK, CS Input Hysteresis

VHYST

DIN, SCLK, CS Input Leakage

IIN

DIN, SCLK, CS Input Capacitance CIN

SHDN Input High Voltage

VINH

SHDN Input Low Voltage

VINL

SHDN Input Current

IIN

SHDN Input Mid Voltage

VIM

SHDN Voltage, Floating

SHDN Maximum Allowed Leakage,

Mid Input

VFLT

VIN = 0V or VDD

(Note 7)

SHDN = 0V or VDD

SHDN = open

SHDN = open

2.0

V

0.8

V

0.2

V

±0.01 ±1

µA

15

pF

VDD - 0.4

V

0.4

V

±4.0 µA

VDD/2

- 0.3

VDD/2

+ 0.3

V

VDD/2

V

±80 nA

DIGITAL OUTPUTS (DOUT, SSTRB)

Output Voltage Low

VOL

Output Voltage High

Three-State Leakage Current

Three-State Output Capacitance

POWER REQUIREMENTS

Positive Supply Voltage

VOH

IL

COUT

VDD

Positive Supply Current

IDD

ISINK = 5mA

ISINK = 16mA

ISOURCE =0.5mA

CS = VDD

CS = VDD (Note 7)

Operating mode, full-scale input

Power-down

0.4

V

0.5

VDD - 0.375

V

±0.01 ±10 µA

15

pF

2.375

0.8

1.2

3.3

V

1.3 mA

10

µA

Supply Rejection (Note 9)

PSR

VDD = 2.375V to 3.3V, full-scale input,

external reference = 2.048V

±0.3

mV

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