MAX1282 datasheet(6/24 Pages) MAXIM

Part #	MAX1282

Description	300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference

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Manufacturer	MAXIM [Maxim Integrated Products]

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300ksps/400ksps, Single-Supply, 4-Channel,

Serial 12-Bit ADCs with Internal Reference

6

_______________________________________________________________________________________

VDD1 =

VDD2 =

3.6V

ISOURCE = 0.5mA

VDD1 = VDD2 = 2.7V to 3.6V, midscale input

CONDITIONS

mA

2.5

3.5

IVDD1 +

IVDD2

Supply Current

V

2.7

3.6

VDD1,

VDD2

V

VDD2 - 0.5V

VOH

Output Voltage High

Positive Supply Voltage

(Note 9)

1.3

2.0

Normal operating mode (Note 10)

Reduced-power mode (Note 11)

0.9

1.5

Fast power-down mode (Note 11)

Full power-down mode (Note 11)

µA

2.0

10

mV

±0.5

±2.0

PSR

Power-Supply Rejection

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

ISINK = 5mA

V

0.4

VOL

Output Voltage Low

CS = VDD2

µA

±10

IL

Three-State Leakage Current

CS = VDD2

pF

15

COUT

Three-State Output Capacitance

ELECTRICAL CHARACTERISTICS—MAX1283 (continued)

(VDD1 = VDD2 = +2.7V to +3.6V, COM = GND, fOSC = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), external

+2.5V at REF, REFADJ = VDD1, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)

TIMING CHARACTERISTICS—MAX1282

(Figures 1, 2, 5, 6; VDD1 = VDD2 = +4.5V to +5.5V, TA = TMIN to TMAX, unless otherwise noted.)

CLOAD = 20pF

CONDITIONS

ns

100

tCSW

CS Pulse Width High

ns

65

tSTE

CS Fall to SSTRB Enable

ns

65

tDOE

CS Fall to DOUT Enable

ns

10

65

tSTD

CS Rise to SSTRB Disable

ns

10

65

tDOD

CS Rise to DOUT Disable

ns

80

tSTV

SCLK Rise to SSTRB Valid

ns

80

tDOV

SCLK Rise to DOUT Valid

ns

62

tCL

SCLK Pulse Width Low

ns

62

tCH

ns

156

tCP

SCLK Period

SCLK Pulse Width High

ns

10

20

tSTH

SCLK Rise to SSTRB Hold

ns

10

20

tDOH

SCLK Rise to DOUT Hold

ns

35

tCS1

CS Rise to SCLK Rise Ignore

ns

35

tCSO

SCLK Rise to CS Fall Ignore

ns

35

tDS

DIN to SCLK Setup

ns

0

tDH

DIN to SCLK Hold

ns

35

tCSS

CS Fall to SCLK Rise Setup

ns

0

tCSH

SCLK Rise to CS Rise Hold

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

DIGITAL OUTPUTS (DOUT, SSTRB)

POWER SUPPLY

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