ADS5242 datasheet(6/29 Pages) TI

Part #	ADS5242

Description	4-Channel, 12-Bit, 65MSPS Analog-to-Digital Converter with Serial LVDS Interface

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Manufacturer	TI [Texas Instruments]

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AC CHARACTERISTICS

ADS5242

SBAS330C – OCTOBER 2004 – REVISED OCTOBER 2005

T

MIN = –40°C and TMAX = +85°C. Typical values are at TA = +25°C, clock frequency = maximum specified, 50% clock duty

cycle, AVDD = 3.3V, LVDD = 3.3V, –1dBFS, I

SET = 56.2kΩ, internal voltage reference, and LVDS buffer current at 3.5mA per

channel, unless otherwise noted.

ADS5242

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

DYNAMIC CHARACTERISTICS

fIN = 1MHz

88

dBc

fIN = 5MHz

77

85

dBc

SFDR Spurious-Free Dynamic Range

fIN = 10MHz

85

dBc

fIN = 20MHz

85

dBc

fIN = 1MHz

98

dBc

fIN = 5MHz

84

95

dBc

HD2 2nd-Order Harmonic Distortion

fIN = 10MHz

95

dBc

fIN = 20MHz

92

dBc

fIN = 1MHz

88

dBc

fIN = 5MHz

77

85

dBc

HD3 3rd-Order Harmonic Distortion

fIN = 10MHz

85

dBc

fIN = 20MHz

85

dBc

fIN = 1MHz

71.1

dBFS

fIN = 5MHz

69

71

dBFS

SNR Signal-to-Noise Ratio

fIN = 10MHz

70.8

dBFS

fIN = 20MHz

70.1

dBFS

fIN = 1MHz

70.9

dBFS

fIN = 5MHz

68.5

70.8

dBFS

SINAD Signal-to-Noise and Distortion

fIN = 10MHz

70.6

dBFS

fIN = 20MHz

69.9

dBFS

ENOB Effective Number of Bits

fIN = 5MHz

11.1

11.5

Bits

5MHz Full-Scale Signal Applied to 3 Channels;

Crosstalk

–88

dBc

Measurement Taken on the Channel with No Input Signal

f1 = 9.5MHz at –7dBFS

Two-Tone, Third-Order

IMD3

95

dBFS

Intermodulation Distortion

f2 = 10.2MHz at –7dBFS

6

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