ADS5545 datasheet(5/59 Pages) TI1

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ELECTRICAL CHARACTERISTICS

ADS5545

SLWS180C – NOVEMBER 2005 – REVISED MAY 2007

Typical values are at 25

°C, min and max values are across the full temperature range T

MIN = –40°C to TMAX = 85°C,

AVDD = DRVDD = 3.3 V, sampling rate = 170 MSPS, sine wave input clock, 1.5 V

PP differential clock amplitude, 50% clock

duty cycle, –1 dBFS differential analog input, internal reference mode, 0dB gain, DDR LVDS data output (unless otherwise

noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

AC CHARACTERISTICS

FIN = 10 MHz

74.3

FIN = 70 MHz

71.5

FIN = 100 MHz

73.4

FIN = 150 MHz

72.8

SNR

Signal to noise ratio

dBFS

0 dB gain, 2 VPP FS(1)

71.3

FIN = 225 MHz

3 dB gain, 1.4 VPP FS

69.8

0 dB gain, 2 VPP FS

FIN = 300 MHz

3 dB gain, 1.4 VPP FS

RMS output noise

Inputs tied to common-mode

1.1

LSB

FIN = 10 MHz

FIN = 70 MHz

FIN = 100 MHz

FIN = 150 MHz

SFDR

Spurious free dynamic range

dBc

0 dB gain, 2 VPP FS

FIN = 225 MHz

3 dB gain, 1.4 VPP FS

0 dB gain, 2 VPP FS

FIN = 300 MHz

3 dB gain, 1.4 VPP FS

FIN = 10 MHz

74.1

FIN = 70 MHz

70.5

FIN = 100 MHz

72.8

FIN = 150 MHz

72.2

SINAD

Signal to noise and distortion ratio

dBFS

0 dB gain, 2 VPP FS

FIN = 225 MHz

3 dB gain, 1.4 VPP FS

68.9

0 dB gain, 2 VPP FS

67.8

FIN = 300 MHz

3 dB gain, 1.4 VPP FS

67.5

FIN = 10 MHz

FIN = 70 MHz

FIN = 100 MHz

FIN = 150 MHz

HD2

Second harmonic

dBc

0 dB gain, 2 VPP FS

FIN = 225 MHz

3 dB gain, 1.4 VPP FS

0 dB gain, 2 VPP FS

FIN = 300 MHz

3 dB gain, 1.4 VPP FS

FIN = 10 MHz

FIN = 70 MHz

FIN = 100 MHz

FIN = 150 MHz

HD3

Third harmonic

dBc

0 dB gain, 2 VPP FS

FIN = 225 MHz

3 dB gain, 1.4 VPP FS

0 dB gain, 2 VPP FS

FIN = 300 MHz

3 dB gain, 1.4 VPP FS

(1)

FS = Full scale range

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