AD7641BSTZ datasheet(4/14 Pages) AD

4 / 14 page

AD7631/AD7634

Preliminary Technical Data

Rev. PrC | Page 4 of 14

Parameter

Conditions

Min

Typ

Max

Unit

AC ACCURACY

Dynamic Range

VIN = ±5V, fIN = 2 kHz, -60dB

102.5

dB4

Signal-to-Noise

VIN = ±5V, fIN = 2 kHz

101

Spurious-Free Dynamic Range

VIN = ±5V, fIN = 2 kHz

122

Total Harmonic Distortion

VIN = ±5V, fIN = 2 kHz

-106

Signal-to-(Noise + Distortion)

VIN = ±5V, fIN = 2 kHz

100

–3 dB Input Bandwidth

MHz

SAMPLING DYNAMICS

Aperture Delay

Aperture Jitter

ps rms

Transient Response

Full-scale step

115

INTERNAL REFERENCE

PDREF = PDBUF = low

Output Voltage

REF @ 25°C

4.985

5.000

5.015

Temperature Drift

–40°C to +85°C

±7

ppm/°C

Line Regulation

AVDD = 5 V ± 5%

±15

ppm/V

Turn-On Settling Time

CREF = 10 μF

REFERENCE BUFFER

PDREF = high

REFBUFIN Input Voltage Range

2.5

EXTERNAL REFERENCE

PDREF = PDBUF = high

Voltage Range

REF

AVDD+0.1

Current Drain

AD7634 @ 670 kSPS throughput

TBD

μA

Current Drain

AD7631 @ 250 kSPS throughput

TBD

μA

TEMPERATURE PIN

Voltage Output

TEMP @ 25°C

TBD

Temperature Sensitivity

mV/°C

Output Resistance

kΩ

DIGITAL INPUTS

Logic Levels

VIL

–0.3

+0.6

VIH

2.1

OVDD+0.3

IIL

–1

μA

IIH

–1

μA

DIGITAL OUTPUTS

Data Format5

Pipeline Delay6

VOL

ISINK = 500 μA

0.4

VOH

ISOURCE = −500 μA

OVDD − 0.6

POWER SUPPLIES

Specified Performance

AVDD

4.75

5.25

DVDD

4.75

5.25

OVDD

2.7

5.25

VCC

VEE

-15

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