AD7626_09 datasheet(4/28 Pages) AD

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AD7626

Rev. A | Page 4 of

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

REFERENCE BUFFER

REFIN Input Voltage Range

1.18

1.2

1.22

REF Output Voltage Range

REF @ 25°C, EN0 = EN1 = 1

4.076

4.096

4.116

Line Regulation

VDD1 ± 5%, VDD2 ± 5%

EXTERNAL REFERENCE

Voltage Range

REF

4.096

VCM PIN

VCM Output

REF/2

VCM Error

−0.015

+0.015

Output Impedance

kΩ

LVDS I/O (ANSI-644)

Data Format

Serial LVDS twos complement

Differential Output Voltage, VOD

RL = 100 Ω

245

290

454

Common-Mode Output Voltage, VOCM

RL = 100 Ω

9802

1130

1375

Differential Input Voltage, VID

100

650

Common-Mode Input Voltage, VICM

800

1575

POWER SUPPLIES

Specified Performance

VDD1

4.75

5.25

VDD2

2.37

2.5

2.63

VIO

2.37

2.5

2.63

Operating Currents

Static—Not Converting

VDD1

3.5

4.5

VDD2

16.7

21.2

VIO

11.6

13.5

With Internal Reference

10 MSPS throughput

VDD1

10.4

11.2

VDD2

23.5

27.8

VIO

Echoed-clock mode

15.8

17.8

With External Reference

10 MSPS throughput

VDD1

7.5

8.8

VDD2

VIO

Echoed-clock mode

16.4

18.5

Power-Down

EN0 = 0, EN1 = 0

VDD1

0.6

μA

VDD2

0.8

μA

VIO

μA

Power Dissipation3

Static—Not Converting

107

With Internal Reference

10 MSPS throughput

150

170

With External Reference

10 MSPS throughput

136

160

Power-Down

μW

Energy per Conversion

10 MSPS throughput

13.6

nJ/sample

TEMPERATURE RANGE

Specified Performance

TMIN to TMAX

−40

+85

°C

1 Using an external reference.

2 The ANSI-644 LVDS specification has a minimum output common mode (VOCM) of 1125 mV.

3 Power dissipation is for the AD7626 device only. In self-clocked interface mode, 0.9 mW is dissipated in the 100 Ω terminator. In echoed-clock interface mode, 1.8 mW

is dissipated in two 100 Ω terminators.

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