AD7691 Просмотр технического описания (PDF) - Analog Devices

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AD7691

18-Bit, 1.5 LSB INL, 250 kSPS PulSAR Differential ADC in MSOP/LFCSP

Analog Devices 

AD7691

Data Sheet

VDD = 2.3 V to 5.25 V, VIO = 2.3 V to VDD, VREF = VDD, all specifications TMIN to TMAX, unless otherwise noted.

Table 3.

Parameter

REFERENCE

Voltage Range

Load Current

SAMPLING DYNAMICS

−3 dB Input Bandwidth

Aperture Delay

DIGITAL INPUTS

Logic Levels

VIL

VIH

IIL

IIH

DIGITAL OUTPUTS

Data Format

Pipeline Delay1

VOL

VOH

POWER SUPPLIES

VDD

VIO

VIO Range

Standby Current2, 3

Power Dissipation

Energy per Conversion

TEMPERATURE RANGE4

Specified Performance

Conditions/Comments

Min

0.5

250 kSPS, REF = 5 V

VDD = 5 V

−0.3

0.7 × VIO

−1

−1

Serial 18-bit, twos complement

ISINK = +500 µA

ISOURCE = −500 µA

VIO − 0.3

Specified performance

2.3

Specified performance

2.3

1.8

VDD and VIO = 5 V, TA = 25°C

VDD = 2.5 V, 100 SPS throughput

VDD = 2.5 V, 100 kSPS throughput

VDD = 2.5 V, 180 kSPS throughput

VDD = 5 V, 100 kSPS throughput

VDD = 5 V, 250 kSPS throughput

TMIN to TMAX

−40

Typ

Max

VDD + 0.3

60

2

2.5

+0.3 × VIO

VIO + 0.3

+1

+1

0.4

5.25

VDD + 0.3

VDD + 0.3

1

50

1.4

1.35

2.4

4.24

5

10.6

12.5

50

+85

1 Conversion results are available immediately after completed conversion.

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

3 During acquisition phase.

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

Unit

V

µA

MHz

ns

V

V

µA

µA

V

V

V

V

V

nA

µW

mW

mW

mW

mW

nJ/sample

°C

Rev. E | Page 4 of 28

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