Data Sheet

AD7699

Rev. F | Page 5 of 32

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

Total Harmonic Distortion

fIN = 20 kHz

−97

dB

Spurious-Free Dynamic Range

fIN = 20 kHz

112

dB

Channel-to-Channel Crosstalk

fIN = 100 kHz on adjacent channel(s)

−125

dB

SAMPLING DYNAMICS

−3 dB Input Bandwidth

Full bandwidth

14

MHz

¼ bandwidth

3.6

MHz

Aperture Delay

VDD = 5 V

2.5

ns

INTERNAL REFERENCE

REF Output Voltage

At 25°C

4.086

4.096

4.106

V

REFIN Output Voltage6

At 25°C

2.3

V

REF Output Current

±300

µA

Temperature Drift

±10

ppm/°C

Line Regulation

VDD = 5 V ± 5%

±15

ppm/V

Long-Term Drift

1000 hours

50

ppm

Turn-On Settling Time

CREF = 10 µF

5

ms

EXTERNAL REFERENCE

Voltage Range

REF input

0.5

VDD + 0.3

V

REFIN input (buffered)

0.5

VDD − 0.2

V

Current Drain

500 kSPS, REF = 5 V

100

µA

TEMPERATURE SENSOR

Output Voltage7

At 25°C

283

mV

Temperature Sensitivity

1

mV/°C

DIGITAL INPUTS

Logic Levels

VIL

−0.3

+0.3 × VIO

V

VIH

0.7 × VIO

VIO + 0.3

V

IIL

−1

+1

µA

IIH

−1

+1

µA

DIGITAL OUTPUTS

Data Format8

Pipeline Delay9

VOL

ISINK = +500 µA

0.4

V

VOH

ISOURCE = −500 µA

VIO − 0.3

V

POWER SUPPLIES

VDD

Specified performance

4.5

5.5

V

VIO

Specified performance

1.8

VDD + 0.3

V

Standby Current10, 11

VDD and VIO = 5 V, at 25°C

50

nA

Power Dissipation

VDD = 5 V, 100 kSPS throughput

5.2

µW

VDD = 5 V, 500 kSPS throughput

26

29

mW

VDD = 5 V, 500 kSPS throughput with internal reference

28

32

mW

Energy per Conversion

52

nJ

TEMPERATURE RANGE12

Specified Performance

TMIN to TMAX

−40

+85

°C

1

See the Analog Inputs section.

2

The bandwidth is set with the configuration register.

3

LSB means least significant bit. With the 5 V input range, one LSB = 76.3 µV.

4

See the Terminology section. These specifications include full temperature range variation but not the error contribution from the reference.

5

All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.

6

This is the output from the internal band gap.

7

The output voltage is internal and present on a dedicated multiplexer input.

8

Unipolar mode: serial 16-bit straight binary.

Bipolar mode: serial 16-bit twos complement.

9

Conversion results available immediately after completed conversion.

10

With all digital inputs forced to VIO or GND as required.

11

During acquisition phase.

12

Contact an Analog Devices, Inc., sales representative for the extended temperature range.