AD7626 datasheet(3/11 Pages) AD

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Preliminary Technical Data

AD7626

Rev. PrC | Page 3 of 11

SPECIFICATIONS

VDD1 = 5 V; VDD2 = 2.5 V; VIO = 2.5 V; VREF = 4.096 V; all specifications TMIN to TMAX, unless otherwise noted.

Table 2.

Parameter

Conditions

Min

Typ

Max

Unit

RESOLUTION

Bits

ANALOG INPUT

Voltage Range

VIN+ − VIN−

−VREF

+VREF

Operating Input Voltage

VIN+, VIN− to AGND

−0.1

+VREF + 0.1

Common Mode Input Range

VREF/2 – 0.1

VREF/2

VREF/2 + 0.1

Analog Input CMRR

fIN = 1 MHz

Input Current

10 MSPS throughput

550

μA

THROUGHPUT SPEED

Complete Cycle

100

Throughput Rate

0.001

MSPS

DC ACCURACY

Integral Linearity Error

-2

±1

LSB

No Missing Codes

Bits

Differential Linearity Error

-1

±0.3

LSB

Transition Noise

0.6

LSB

Zero Error, TMIN to TMAX

±100

μV

Zero Error Drift

ppm/°C

Gain Error, TMIN to TMAX

ppm of FS

Gain Error Drift

ppm/°C

Power Supply Sensitivity

VDD1 = 5 V ± 5%

TBD

LSB

VDD2 = 2.5 V ± 5%

TBD

LSB

AC ACCURACY

Dynamic Range

Signal-to-Noise

fIN = 1 MHz

Spurious-Free Dynamic Range

fIN = 1 MHz

110

fIN = TBD

Total Harmonic Distortion

fIN = 1 MHz

-110

fIN = TBD

-90

Signal-to-(Noise + Distortion)

fIN = 1 MHz

−3 dB Input Bandwidth

100

MHz

Aperture Delay

Aperture jitter

ps rms

Transient Response

Full-Scale Step

INTERNAL REFERENCE

Output Voltage

REFIN @ 25°C

1.2

Temperature Drift

−40°C to +85°C

±7

ppm/°C

REFERENCE BUFFER

REFIN Input Voltage Range

1.2

REF Output Voltage range

4.096

EXTERNAL REFERENCE

Voltage Range

REF

4.096

VCM

@ 25°C

Output Voltage

VREF/2

Output Impedance

kΩ

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