Datasheet

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ADS5542
SBAS308D – MAY 2004 – REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS (continued)
Typical values given at T
A
= 25 ° C, min and max specified over the full recommended operating temperature range, AV
DD
=
DRV
DD
= 3.3 V, sampling rate = 80 MSPS, 50% clock duty cycle, 3-V
PP
differential clock, and –1dBFS differential input,
unless otherwise noted
PARAMETER CONDITIONS MIN TYP MAX UNIT
Dynamic AC Characteristics
25 ° C to 85 ° C 72.7 74.3
f
IN
= 10 MHz
Full temp range 71.5 74.0
f
IN
= 55 MHz 73.7
25 ° C to 85 ° C 71.5 73.5
Signal-to-noise ratio, SNR f
IN
= 70 MHz dBFS
Full temp range 70.0 73
f
IN
= 100 MHz 72.9
f
IN
= 150 MHz 71.9
f
IN
= 220 MHz 70.7
RMS output noise Input tied to common-mode 1.1 LSB
25 ° C 80 92
f
IN
= 10 MHz
Full temp range 78 90
f
IN
= 55 MHz 88
25 ° C 80 87
Spurious-free dynamic range, SFDR f
IN
= 70 MHz dBc
Full temp range 78 86
f
IN
= 100 MHz 88
f
IN
= 150 MHz 85
f
IN
= 220 MHz 77
25 ° C 80 92
f
IN
= 10 MHz
Full temp range 78 90
f
IN
= 55 MHz 88
25 ° C 80 87
Second-harmonic, HD2 f
IN
= 70 MHz dBc
Full temp range 78 86
f
IN
= 100 MHz 88
f
IN
= 150 MHz 85
f
IN
= 220 MHz 77
25 ° C 80 89
f
IN
= 10 MHz
Full temp range 78 88
f
IN
= 55 MHz 79
25 ° C 80 85
Third-harmonic, HD3 f
IN
= 70 MHz dBc
Full temp range 78 83
f
IN
= 100 MHz 83
f
IN
= 150 MHz 80
f
IN
= 220 MHz 76
f
IN
= 10 MHz 25 ° C 88
Worst-harmonic/spur (other than HD2 and
dBc
HD3)
f
IN
= 70 MHz 25 ° C 87
25 ° C to 85 ° C 72.2 73.8
f
IN
= 10 MHz
Full temp range 71 73.5
f
IN
= 55 MHz 73.2
25 ° C to 85 ° C 71 73.2
Signal-to-noise + distortion, SINAD f
IN
= 70 MHz dBFS
Full temp range 69.5 72.5
f
IN
= 100 MHz 72.5
f
IN
= 150 MHz 71.8
f
IN
= 220 MHz 69.8
4
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