MX7705 datasheet(5/34 Pages) MAXIM

Part #	MX7705

Description	16-Bit, Low-Power, 2-Channel, Sigma-Delta ADC

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Manufacturer	MAXIM [Maxim Integrated Products]

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16-Bit, Low-Power, 2-Channel,

Sigma-Delta ADC

_______________________________________________________________________________________

5

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER REQUIREMENTS

Power-Supply Voltage

VDD

2.70

5.25

V

VDD = 5V

0.45

Unbuffered

fCLKIN =1MHz,

gain =1 to 128

VDD = 3V

0.32

VDD = 5V

0.7

Buffered,

fCLKIN =1MHz,

gain =1 to 128

VDD = 3V

0.6

VDD = 5V,

gain = 1 to 4

0.6

VDD = 5V,

gain = 8 to 128

0.85

VDD = 3V,

gain = 1 to 4

0.4

Unbuffered,

fCLKIN = 2.4576MHz

VDD = 3V,

gain = 8 to 128

0.6

VDD = 5V,

gain = 1 to 4

0.9

VDD = 5V,

gain = 8 to 128

1.3

VDD = 3V,

gain = 1 to 4

0.7

Buffered,

fCLKIN = 2.4576MHz

VDD = 3V,

gain = 8 to 128

1.1

mA

VDD = 5V

16

Power-Supply Current (Note 12)

IDD

Power-down mode

(Note 13)

VDD = 3V

8

µA

VDD = 4.75V to 5.25V

(Note 14)

Power-Supply Rejection Ratio

PSRR

VDD = 2.7V to 3.6V

(Note 14)

dB

EXTERNAL CLOCK TIMING SPECIFICATIONS

CLKIN Frequency

fCLKIN

(Note 15)

400

2500

kHz

Duty Cycle

40

60

%

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 3V or 5V, GND = 0, VREF+ = 1.225V for VDD = 3V and VREF+ = 2.5V for VDD = 5V, VREF- = GND, external fCLKIN =

2.4576MHz, CLKDIV bit = 0, CREF+ to GND = 0.1µF, CREF- to GND = 0.1µF, TA = TMIN to TMAX, unless otherwise noted.)

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