MAX1284BCSA データシートの表示（PDF） - Maxim Integrated

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MAX1284BCSA

400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference

Maxim Integrated 

400ksps/300ksps, Single-Supply, Low-Power,

Serial 12-Bit ADCs with Internal Reference

ELECTRICAL CHARACTERISTICS—MAX1285 (continued)

(VDD = +2.7V to +3.6V; fSCLK = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), 4.7µF capacitor at REF, TA = TMIN to

TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP

DYNAMIC SPECIFICATIONS (75kHz sine wave, 2.5VP-P, fSAMPLE = 300ksps, fSCLK = 4.8MHz)

Signal-to-Noise Plus Distortion

SINAD

70

Ratio

Total Harmonic Distortion

THD Up to the 5th harmonic

-80

Spurious-Free Dynamic Range

SFDR

80

Intermodulation Distortion

IMD

fIN1 = 73kHz, fIN2 = 77kHz

76

Full-Power Bandwidth

-3dB point

3

Full-Linear Bandwidth

SINAD > 68dB

250

CONVERSION RATE

Conversion Time (Note 4)

Track/Hold Acquisition Time

Aperture Delay

tCONV

tACQ

3.3

10

Aperture Jitter

Serial Clock Frequency

Duty Cycle

tSCLK

< 50

0.5

40

ANALOG INPUT (AIN)

Input Voltage Range

Input Capacitance

VAIN

0

18

INTERNAL REFERENCE

REF Output Voltage

REF Short-Circuit Current

REF Output Tempco

Load Regulation (Note 5)

VREF

TC VREF

TA = +25°C

0 to 0.75mA output load

2.48 2.50

15

±15

0.1

Capacitive Bypass at REF

4.7

DIGITAL INPUTS (SCLK, CS, SHDN)

Input High Voltage

VINH

Input Low Voltage

VINL

Input Hysteresis

VHYST

Input Leakage

IIN

Input Capacitance

CIN

DIGITAL OUTPUT (DOUT)

Output Voltage Low

VOL

VIN = 0V or VDD

ISINK = 5mA

2.0

0.2

15

Output Voltage High

Three-State Leakage Current

Three-State Output Capacitance

POWER SUPPLY

VOH

IL

COUT

ISOURCE = 0.5mA

VCS = +3V

VCS = +3V

VDD - 0.5

15

Positive Supply Voltage (Note 6)

Positive Supply Current (Note 7)

Shutdown Supply Current

Power-Supply Rejection

VDD

IDD

ISHDN

PSR

VDD = +3.6V

SCLK = VDD, SHDN = GND

VDD = +2.7V to 3.6V, midscale input

2.7

2.5

2

±0.5

MAX UNITS

dB

dB

dB

dB

MHz

kHz

µs

625

ns

ns

ps

4.8 MHz

60

%

2.5

V

pF

2.52

V

mA

ppm/°C

2.0 mV/mA

10

µF

V

0.8

V

V

±1

µA

pF

0.4

V

V

±10

µA

pF

3.6

V

3.5

mA

10

µA

±2.0 mV

4 _______________________________________________________________________________________

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