ADC3441 datasheet(7/88 Pages) TI2

7 / 88 page

ADC3441, ADC3442, ADC3443, ADC3444

www.ti.com

SBAS670B – JULY 2014 – REVISED APRIL 2017

Product Folder Links: ADC3441 ADC3442 ADC3443 ADC3444

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(1)

For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

7.4 Thermal Information

THERMAL METRIC(1)

ADC344x

UNIT

RTQ (VQFN)

56 PINS

RθJA

Junction-to-ambient thermal resistance

25.3

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

9.5

°C/W

RθJB

Junction-to-board thermal resistance

3.4

°C/W

ψJT

Junction-to-top characterization parameter

0.2

°C/W

ψJB

Junction-to-board characterization parameter

3.3

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

0.5

°C/W

(1)

Crosstalk is measured with a –1-dBFS input signal on the aggressor channel and no input on the victim channel.

(2)

Channels A and B are near to each other but far from channels C and D. Similarly, channels C and D are near to each other but far

from channels A and B; see the Pin Configuration and Functions section for more information.

7.5 Electrical Characteristics: General

at maximum sampling rate, 50% clock duty cycle, AVDD = DVDD = 1.8 V, and –1-dBFS differential input (unless otherwise

noted); typical values are specified at an ambient temperature of 25°C; minimum and maximum values are specified over an

ambient temperature range of –40°C to +85°C

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ANALOG INPUT

Differential input full-scale

2.0

VPP

Input resistance

Differential at dc

6.6

kΩ

Input capacitance

Differential at dc

3.7

VOC(VCM)

VCM common-mode voltage

output

0.8

0.95

1.1

VCM output current capability

Input common-mode current

Per analog input pin

1.5

µA/MSPS

Analog input bandwidth

(–3-dB point)

50-Ω differential source driving 50-Ω

termination across INP and INM

540

MHz

DC ACCURACY

Offset error

–25

αEO

Temperature coefficient of offset

error

±0.024

mV/°C

Overall dc gain error of a

channel

ADC3441

–2

%FS

ADC3442, ADC3443, ADC3444

-2.5

2.5

αEG

Temperature coefficient of

overall gain error

0.005

Δ%FS/°C

CHANNEL-TO-CHANNEL ISOLATION

Crosstalk(1)(2)

fIN = 10 MHz

Between near channels

105

Between far channels

105

fIN = 100 MHz

Between near channels

Between far channels

105

fIN = 200 MHz

Between near channels

Between far channels

105

fIN = 230 MHz

Between near channels

Between far channels

105

fIN = 300 MHz

Between near channels

Between far channels

105

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