MAX19705ETM Просмотр технического описания (PDF) - Maxim Integrated

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MAX19705ETM

10-Bit, 7.5Msps, Ultra-Low-Power Analog Front-End

Maxim Integrated 

10-Bit, 7.5Msps, Ultra-Low-Power

Analog Front-End

ABSOLUTE MAXIMUM RATINGS

VDD to GND, OVDD to OGND ..............................-0.3V to +3.6V

GND to OGND.......................................................-0.3V to +0.3V

IAP, IAN, QAP, QAN, IDP, IDN, QDP,

QDN, DAC1, DAC2, DAC3 to GND .....................-0.3V to VDD

ADC1, ADC2 to GND.................................-0.3V to (VDD + 0.3V)

REFP, REFN, REFIN, COM to GND ...........-0.3V to (VDD + 0.3V)

D0–D9, DOUT, T/R, SHDN, SCLK, DIN, CS,

CLK to OGND .....................................-0.3V to (OVDD + 0.3V)

Continuous Power Dissipation (TA = +70°C)

48-Pin Thin QFN (derate 27.8mW/°C above +70°C) .....2.22W

Thermal Resistance θJA ..................................................36°C/W

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-60°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 7.5MHz (50% duty cycle), Rx ADC input

amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, CREFP = CREFN =

CCOM = 0.33µF, unless otherwise noted. CL < 5pF on all aux-DAC outputs. Typical values are at TA = +25°C.) (Note 1)

PARAMETER

POWER REQUIREMENTS

Analog Supply Voltage

Output Supply Voltage

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

VDD

OVDD

2.7

3.0

3.3

V

1.8

VDD

V

Ext1-Tx, Ext3-Tx, and SPI2-Tx states;

transmit DAC operating mode (Tx):

fCLK = 7.5MHz, fOUT = 620kHz on both

7.4

channels; aux-DACs ON and at midscale,

aux-ADC ON

VDD Supply Current

Ext2-Tx, Ext4-Tx, and SPI4-Tx states;

transmit DAC operating mode (Tx):

fCLK = 7.5MHz, fOUT = 620kHz on both

channels; aux-DACs ON and at midscale,

aux-ADC ON

Ext1-Rx, Ext4-Rx, and SPI3-Rx states;

receive ADC operating mode (Rx):

fCLK = 7.5MHz, fIN = 1.875MHz on both

channels; aux-DACs ON and at midscale,

aux-ADC ON

9.6 12.5

mA

9.4

11

Ext2-Rx, Ext3-Rx, and SPI1-Rx states;

receive ADC operating mode (Rx):

fCLK = 7.5MHz, fIN = 1.875MHz on both

7

channels; aux-DACs ON and at midscale,

aux-ADC ON

2 _______________________________________________________________________________________

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