AD7723 datasheet(5/33 Pages) AD

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AD7723

Rev. C | Page 4 of 32

B Version

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

Low-Pass Decimate by 16

0 kHz to fCLKIN/41.75

±0.001

fCLKIN/33.45

−3

fCLKIN/32

−6

fCLKIN/25.95 to fCLKIN/2

−90

Group Delay

541/2 fCLKIN

Settling Time

541/fCLKIN

Band-Pass Decimate by 32

fCLKIN/51.90 to fCLKIN/41.75

±0.001

fCLKIN/62.95, fCLKIN/33.34

−3

fCLKIN/64, fCLKIN/32

−6

0 kHz to fCLKIN/83.5, fCLKIN/25.95 to fCLKIN/2

−90

Group Delay

1293/2 fCLKIN

Settling Time

1293/fCLKIN

Output Data Rate, FO

Decimate by 32

fCLKIN/32

Decimate by 166

fCLKIN/16

ANALOG INPUTS

Full-Scale Input Span

VIN(+) − VIN(−)

Bipolar Mode

±4/5 × VREF2

Unipolar Mode

8/5 × VREF2

Absolute Input Voltage

VIN(+) − VIN(−)

AGND

AVDD

Input Sampling Capacitance

Input Sampling Rage, fCLKIN

19.2

MHz

CLOCK

CLKIN Duty Ratio

REFERENCE

REF1 Output Resistance

kΩ

Using Internal Reference

REF2 Output Voltage

2.39

2.54

2.69

REF2 Output Voltage Drift

ppm/°C

Using External Reference

REF2 Input Impedance

REF1 = AGND

kΩ

REF2 External Voltage Range

1.2

2.5

3.15

STATIC PERFORMANCE

Resolution

Bits

Differential Nonlinearity

Guaranteed monotonic

±0.5

±1

LSB

Integral Nonlinearity

±2

LSB

DC CMRR

Offset Error

±20

Gain Error5

±0.5

% FSR

LOGIC INPUTS (EXCLUDING CLKIN)

VINH, Input High Voltage

2.0

VINL, Input High Voltage

0.8

CLOCK INPUT (CLKIN)

VINH, Input High Voltage

3.8

VINL, Input High Voltage

0.4

ALL LOGIC INPUTS

IIN, Input Current

VIN = 0 V to DVDD

±10

µA

CIN, Input Capacitance

AD7723 Datasheet(PDF) 5 Page - Analog Devices

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