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ELECTRICAL CHARACTERISTICS

ADS5500

SBAS303F – DECEMBER 2003 – REVISED FEBRUARY 2007

RECOMMENDED OPERATING CONDITIONS (continued)

MIN

NOM

MAX

UNIT

Clock duty cycle (see Figure 49 for more information)

50%

0

70

Open free-air temperature range

°C

–40

85

Typ 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 = 125 Msps, 50% clock duty cycle, DLL On, 3-VPP differential clock, and –1-dBFS differential

input, unless otherwise noted

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Resolution

14

Bits

ANALOG INPUTS

Differential input range

2.3

VPP

Differential input impedance

See Figure 41

6.6

Ω

Differential input capacitance

See Figure 41

4

pF

Analog input common-mode current (per

300

µA

input)

Analog input bandwidth

Source impedance = 50

Ω

750

MHz

Clock

Voltage overload recovery time

4

Cycles

INTERNAL REFERENCE VOLTAGES

VREFM

Reference bottom voltage

0.97

V

VREFP

Reference top voltage

2.11

V

Reference error

– 4%

±0.9%

4%

VCM

Common-mode voltage output

1.55

±0.05

V

DYNAMIC DC CHARACTERISTICS AND ACCURACY

No missing codes

Tested

DNL

Differential linearity error

fIN = 10 MHz

–0.9

±0.75

1.1

LSB

INL

Integral linearity error

fIN = 10 MHz

–5

±2.5

5

LSB

Offset error

–11

±1.5

11

mV

Offset temperature coefficient 0.02

mV/

°C

∆offset error/∆AV

DD from AVDD = 3

DC power supply rejection ratio, DC PSRR

0.25

mV/V

V to AVDD = 3.6 V

Gain error (1)

–2

±0.45

2

%FS

Gain temperature coefficient

0.01

∆%/°C

DYNAMIC AC CHARACTERISTICS

25

°C to T

MAX

71.5

73.2

fIN = 10 MHz

Full temp range

70.5

72.8

fIN = 30 MHz

72.7

fIN = 55 MHz

71.9

SNR

Signal-to-noise ratio

25

°C to T

MAX

70.8

72.3

dBFS

fIN = 70 MHz

Full temp range

69.8

72

fIN = 100 MHz

71.2

fIN = 150 MHz

70.1

fIN = 225 MHz

69.1

RMS output noise

Input tied to common-mode

1.1

LSB

(1)

Gain error is specified by design and characterization; it is not tested in production.

3

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