RECOMMENDED OPERATING CONDITIONS

ADS5270

www.ti.com............................................................................................................................................... SBAS293F – JANUARY 2004 – REVISED JANUARY 2009

ADS5270

MIN

TYP

MAX

UNITS

SUPPLIES AND REFERENCES

Analog Supply Voltage, AVDD

3.0

3.3

3.6

V

Output Driver Supply Voltage, LVDD

3.0

3.3

3.6

V

REFT — External Reference Mode

1.825

1.95

2.0

V

REFB — External Reference Mode

0.9

0.95

1.075

V

REFCM = (REFT + REFB)/2 – External Reference Mode

(1)

VCM ± 50mV

V

Reference = (REFT – REFB) – External Reference Mode

0.75

1.0

1.1

V

Analog Input Common-Mode Range(1)

VCM ± 50mV

V

CLOCK INPUT AND OUTPUTS

ADCLK Input Sample Rate (low-voltage TTL)

20

40

MSPS

ADCLK Duty Cycle

45

55

%

Low-Level Voltage Clock Input

0.6

V

High-Level Voltage Clock Input

2.2

V

ADCLKP and ADCLKN Outputs (LVDS)

20

40

MHz

LCLKP and LCLKN Outputs (LVDS)

(2)

120

240

MHz

Operating Free-Air Temperature, TA

–40

+85

°C

Thermal Characteristics:

θ

JA

19.4

°C/W

θ

JC

4.2

°C/W

(1)

These voltages need to be set to 1.45V ± 50mV if they are derived independent of VCM.

(2)

6 × ADCLK.

Copyright © 2004–2009, Texas Instruments Incorporated

Submit Documentation Feedback

3

Product Folder Link(s): ADS5270