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DIGITAL CHARACTERISTICS

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, AVDD =

DRV

DD = 3.3 V, sampling rate = 80 MSPS, 50% clock duty cycle, 3-VPP differential clock, and –1dBFS differential input,

unless otherwise noted

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

25

°C

78

90

fIN = 10 MHz

Full temp range

76

88

fIN = 55 MHz

83.4

25

°C

78

86

Total harmonic distortion, THD

fIN = 70 MHz

dBc

Full temp range

76

84

fIN = 100 MHz

83.4

fIN = 150 MHz

81.2

fIN = 220 MHz

75.8

Effective number of bits, ENOB

fIN = 70 MHz

11.9

Bits

f = 10.1 MHz, 15.1 MHz (–7dBFS each tone)

93.8

f = 50.1 MHz, 55.1 MHz (–7dBFS each tone)

92.4

Two-tone intermodulation distortion, IMD

dBFS

f = 148.1 MHz, 153.1 MHz (–7dBFS each

92.6

tone)

AC power supply rejection ratio, ACPSRR

Supply noise frequency

≤ 100 MHz

35

dB

Power Supply

Total supply current, ICC

fIN = 70 MHz

204

230

mA

Analog supply current, IAVDD

fIN = 70 MHz

165

180

mA

Output buffer supply current, IDRVDD

fIN = 70 MHz

39

50

mA

Analog only

545

594

Power dissipation

mW

Output buffer power with 10-pF load on

129

165

digital output to ground

Standby power

With Clocks running

180

250

mW

Valid over full recommended operating temperature range, AV

DD = DRVDD = 3.3 V, unless otherwise noted

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Digital Inputs

VIH

High-level input voltage

2.4

V

VIL

Low-level input voltage

0.8

V

IIH

High-level input current

10

µA

IIL

Low-level input current

–10

µA

Input current for RESET

–20

µA

Input capacitance

4

pF

Digital Outputs

VOL

Low-level output voltage

CLOAD = 10 pF

0.3

0.4

V

VOH

High-level output voltage

CLOAD = 10 pF

2.4

3

V

Output capacitance

3

pF

5

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