AD7475 datasheet(3/16 Pages) AD

3 / 16 page

REV. A

–3–

AD7475/AD7495

AD7475–SPECIFICATIONS (continued)

Parameter

A Version

B Version

Unit

Test Conditions/Comments

POWER REQUIREMENTS

(continued)

Power Dissipation

Normal Mode (Operational)

10.5

mW max

VDD = 5 V. fSAMPLE = 1 MSPS

4.5

mW max

VDD = 3 V. fSAMPLE = 1 MSPS

Partial Power-Down (Static)

500

W max

VDD = 5 V

300

W max

VDD = 3 V

Full Power-Down

W max

VDD = 5 V

W max

VDD = 3 V

NOTES

1Temperature ranges as follows: A, B Versions: –40 C to +85 C.

2Sample tested @ 25 C to ensure compliance.

3See Power Versus Throughput Rate section.

Specifications subject to change without notice.

(VDD = 2.7 V to 5.25 V, VDRIVE = 2.7 V to 5.25 V, fSCLK = 20 MHz unless otherwise noted; TA = TMIN to

TMAX, unless otherwise noted.)

AD7495–SPECIFICATIONS

Parameter

A Version

B Version

Unit

Test Conditions/Comments

DYNAMIC PERFORMANCE

Signal to Noise + Distortion

dB min

fIN = 300 kHz Sine Wave, fSAMPLE = 1 MSPS

(SINAD)

Total Harmonic Distortion (THD)

–75

dB max

fIN = 300 kHz Sine Wave, fSAMPLE = 1 MSPS

Peak Harmonic or Spurious Noise

–76

dB max

fIN = 300 kHz Sine Wave, fSAMPLE = 1 MSPS

(SFDR)

Intermodulation Distortion (IMD)

Second Order Terms

–78

dB typ

Third Order Terms

–78

dB typ

Aperture Delay

ns typ

Aperture Jitter

ps typ

Full Power Bandwidth

8.3

MHz typ

@ 3 dB

Full Power Bandwidth

1.3

MHz typ

@ 0.1 dB

DC ACCURACY

Resolution

Bits

Integral Nonlinearity

±1.5

±1

LSB max

@ 5 V (typ @ 3 V)

±0.5

LSB typ

@ 25

°C

Differential Nonlinearity

+1.5/–0.9

LSB max

@ 5 V Guaranteed No Missed Codes to 12 Bits

(typ @ 3 V)

±0.6

LSB typ

@ 25

°C

Offset Error

±8

LSB max

Typically

±2.5 LSB

Gain Error

±7

LSB max

Typically

±2.5 LSB

ANALOG INPUT

Input Voltage Ranges

0 to 2.5

Volts

DC Leakage Current

±1

µA max

Input Capacitance

pF typ

REFERENCE OUTPUT

REF OUT Output Voltage

2.4625/2.5375 2.4625/2.5375

V min/max

REF OUT Impedance

Ω typ

REF OUT Temperature Coefficient 50

ppm/ C typ

LOGIC INPUTS

Input High Voltage, VINH

VDRIVE – 1

V min

Input Low Voltage, VINL

0.4

V max

Input Current, IIN

±1

µA max

Typically 10 nA, VIN = 0 V or VDRIVE

Input Capacitance, CIN

pF max

LOGIC OUTPUTS

Output High Voltage, VOH

VDRIVE – 0.2

V min

ISOURCE = 200

µA; V

DD = 2.7 V to 5.25 V

Output Low Voltage, VOL

0.4

V max

ISINK = 200

µA

Floating-State Leakage Current

±10

µA max

Floating-State Output Capacitance

pF max

Output Coding

Straight (Natural) Binary

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