EVAL-AD7985EBZ(Rev0) 查看數據表（PDF） - Analog Devices

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EVAL-AD7985EBZ
(Rev.:Rev0)

16-Bit, 2.5 MSPS, PulSAR 15.5 mW ADC in LFCSP

Analog Devices 

AD7985

Table 3.

Parameter

INTERNAL REFERENCE

Output Voltage

Temperature Drift

Line Regulation

Turn-On Settling Time

REFIN Output Voltage

REFIN Output Resistance

EXTERNAL REFERENCE

Voltage Range

Current Drain

REFERENCE BUFFER

REFIN Input Voltage Range

REFIN Input Current

DIGITAL INPUTS

Logic Levels

VIL

VIH

IIL

IIH

DIGITAL OUTPUTS

Data Format

Pipeline Delay

Test Conditions/Comments

PDREF is low

TA = 25°C

−40°C to +85°C

AVDD = 2.5 V ± 5%

CREF = 10 μF, CREFIN = 0.1 μF

REFIN at 25°C

PDREF is high, REFIN is low

VOL

VOH

POWER SUPPLIES

AVDD, DVDD

BVDD

VIO

Standby Current1, 2

Power Dissipation

With Internal Reference

With External Reference

TEMPERATURE RANGE3

Specified Performance

ISINK = +500 μA

ISOURCE = −500 μA

Specified performance

AVDD = DVDD = VIO = 2.5 V

2.5 MSPS throughput

2.0 MSPS throughput

2.5 MSPS throughput

2.0 MSPS throughput

TMIN to TMAX

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

2 During acquisition phase.

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

Min

4.081

2.4

Typ

4.096

±10

±50

40

1.2

6

500

1.2

160

Max

4.111

5.1

Unit

V

ppm/°C

ppm/V

ms

V

kΩ

V

μA

V

μA

−0.3

0.9 × VIO

−1

−1

0.1 × VIO

V

VIO + 0.3

V

+1

μA

+1

μA

Serial 16 bits, straight binary

Conversion results available immediately

after completed conversion

0.4

V

VIO − 0.3

V

2.375

2.5

2.625

V

4.75

5.0

5.25

V

1.8

2.5

2.7

V

1.0

μA

28

33

mW

25

30

mW

15.5

17

mW

12

13

mW

−40

+85

°C

Rev. 0 | Page 4 of 28

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