MAX1084 datasheet(4/16 Pages) MAXIM

Part #	MAX1084

Description	400ksps/300ksps, Single-Supply, Low-Power, Serial 10-Bit ADCs with Internal Reference

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Manufacturer	MAXIM [Maxim Integrated Products]

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4 / 16 page

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

Serial 10-Bit ADCs with Internal Reference

4

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—MAX1085 (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.)

SINAD > 58dB

-3dB point

fIN1 = 99kHz, fIN2 =102kHz

Up to the 5th harmonic

CONDITIONS

ps

<50

Aperture Jitter

ns

10

Aperture Delay

ns

625

tACQ

Track/Hold Acquisition Time

µs

3.3

tCONV

Conversion Time (Note 4)

kHz

250

Full-Linear Bandwidth

MHz

3

Full-Power Bandwidth

dB

76

IMD

Intermodulation Distortion

dB

70

SFDR

Spurious-Free Dynamic Range

dB

-70

THD

Total Harmonic Distortion

dB

60

SINAD

Signal-to-Noise Plus Distortion

Ratio

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

ISINK = 5mA

VIN = 0 or VDD

TA = +25°C

0 to 0.75mA output load

V

0.4

VOL

Output Voltage Low

pF

15

CIN

Input Capacitance

µA

±1

IIN

Input Leakage

V

0.2

VHYST

Input Hysteresis

V

0.8

VINL

Input Low Voltage

V

2.0

VINH

Input High Voltage

µF

4.7

10

Capacitive Bypass at REF

mV/mA

0.1

2.0

Load Regulation (Note 5)

ppm/°C

±15

TC VREF

REF Output Tempco

%

40

60

MHz

0.5

4.8

fSCLK

Serial Clock Frequency

Duty Cycle

mA

15

REF Short Circuit Current

V

2.48

2.50

2.52

VREF

REF Output Voltage

V

0

2.5

VAIN

Input Voltage Range

pF

18

CIN

Input Capacitance

CS = 3V

ISOURCE = 0.5mA

pF

15

COUT

Three-State Output Capacitance

µA

±10

IL

Three-State Leakage Current

V

VDD - 0.5V

VOH

Output Voltage High

V

2.7

3.6

VDD

Positive Supply Voltage (Note 6)

VDD = 3.6V

mA

2.5

3.5

IDD

Positive Supply Current (Note 7)

SCLK = VDD, SHDN = GND

µA

210

ISHDN

Shutdown Supply Current

VDD = 2.7V to 3.6V, midscale input

mV

±0.5

±2.0

PSR

Power-Supply Rejection

DYNAMIC SPECIFICATIONS (75kHz sinewave, 2.5Vp-p, fSAMPLE = 300ksps, fSCLK = 4.8MHz)

CONVERSION RATE

INTERNAL REFERENCE

DIGITAL INPUTS (SCLK,CS, SHDN)

DIGITAL OUTPUTS (DOUT)

ANALOG INPUT

POWER SUPPLY

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