MAX128AENG datasheet(5/16 Pages) MAXIM

Part #	MAX128AENG

Description	Multirange, 5V, 12-Bit DAS with 2-Wire Serial Interface

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Manufacturer	MAXIM [Maxim Integrated Products]

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5 / 16 page

Multirange, +5V, 12-Bit DAS with

2-Wire Serial Interface

_______________________________________________________________________________________

5

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +5V ±5%; unipolar/bipolar range; external reference mode, VREF = 4.096V; 4.7µF at REF pin; external clock, fCLK = 400kHz;

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

Input Hysteresis

VHYS

0.05 x VDD

V

Input Low Threshold Voltage

VIL

0.3 x VDD

V

Input High Threshold Voltage

VIH

0.7 x VDD

V

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

CONDITIONS

TIMING CHARACTERISTICS

(VDD = +4.75V to +5.25V; unipolar/bipolar range; external reference mode, VREF = 4.096V; 4.7µF at REF pin; TA = TMIN to TMAX;

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

Input Capacitance

CIN

15

pF

(Note 4)

Input Leakage Current

IIN

±0.1

±10

µA

VIN = 0 or VDD

Three-State Output Capacitance

COUT

15

pF

(Note 4)

Output Low Voltage

VOL

0.4

V

ISINK = 3mA

2-WIRE FAST MODE

Hold Time (Repeated)

START Condition

tHD,STA

0.6

µs

Bus Free Time Between a

STOP and START Condition

tBUF

1.3

µs

SCL Clock Frequency

fSCL

400

kHz

PARAMETERS

SYMBOL

MIN

TYP

MAX

UNITS

CONDITIONS

Set-Up Time for a Repeated

START Condition

tSU,STA

0.6

µs

High Period of the SCL Clock

tHIGH

0.6

µs

Low Period of the SCL Clock

tLOW

1.3

µs

Rise Time for Both SDA and SCL

Signals (Receiving)

tR

20 +

300

0.1 x Cb

ns

Cb = Total capacitance of one bus line in pF

Data Setup Time

tSU,DAT

100

ns

Data Hold Time

tHD,DAT

0

0.9

µs

DIGITAL INPUTS (SDA, SCL)

DIGITAL OUTPUTS (SDA)

ISINK = 6mA

0.6

Fall Time for Both SDA and SCL

Signals (Receiving)

tF

Cb = Total capacitance of one bus line in pF

20 +

300

0.1 x Cb

ns

Fall Time for Both SDA and SCL

Signals (Transmitting)

tF

Cb = Total capacitance of one bus line in pF

20 +

250

0.1 x Cb

ns

Set-Up Time for STOP Condition

tSU,STO

0.6

µs

Capacitive Load for Each

Bus Line

Cb

400

pF

Pulse Width of Spike Suppressed

tSP

0

50

ns

2-WIRE FAST MODE

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