MAX7652CCB datasheet(3/36 Pages) MAXIM

3 / 36 page

Flash Programmable 12-Bit Integrated

Data-Acquisition Systems

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(MAX7651 AVDD = VPWMV = DVDD = VREF+ = +4.5V to +5.5V, VREF- = 0, fXTAL = 12MHz. MAX7652 AVDD = VPWMV = DVDD = +2.7V

to +3.6V, VREF+ = +2.5V, VREF- = 0, ACOM = AVDD/2, fXTAL = 12MHz. TA = TMIN to TMAX, unless otherwise noted. Typical values are

at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

CONVERSION RATE

Conversion Time

tCONV

fXTAL = 12MHz

18.7

µs

Conversion Rate

fXTAL = 12MHz

53.6

ksps

ANALOG INPUTS (AIN0–AIN7, ACOM)

Input Voltage Range

0AVDD

Common-Mode Range

0AVDD

Input Current

1µA

Input Capacitance

CIN

DIGITAL INPUTS

Input Voltage Low

VIL

-0.5

0.2 x

(DVDD - 1)

Input high voltage, except XTAL and RST

0.2 x

(DVDD

+ 0.9)

DVDD

+ 0.5

Input Voltage High

VIH

Input high voltage, XTAL and RST

0.7 x

(DVDD

+ 0.1

DVDD

+ 0.5

MAX7651

409

Internal Reset Pulldown

Resistance

RRST

MAX7652

170

490

Ω

Logical High-to-Low

Transition Current

ITL

Guaranteed by design

750

µA

Logical Zero Input Current,

Ports 1, 2, and 3 ALE,

PSEN

(Note 4)

µA

Input Leakage Current,

Port 0

IIN

VIN = DVDD or DGND

±10

µA

Input Capacitance

DIGITAL OUTPUTS

Output Low Voltage

VOL

ISINK = 4mA

0.45

MAX7651: ISOURCE = 4mA

2.4

Output High Voltage

VOH

MAX7652: ISOURCE = 2mA

2.4

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