AD7949BCPZRL7 데이터 시트보기 (PDF) - Analog Devices

부품명

상세내역

일치하는 목록

AD7949BCPZRL7

14-Bit, 8-Channel, 250 kSPS PulSAR ADC

Analog Devices 

Data Sheet

AD7949

Parameter

INTERNAL REFERENCE

REF Output Voltage

REFIN Output Voltage7

REF Output Current

Temperature Drift

Line Regulation

Long-Term Drift

Turn-On Settling Time

EXTERNAL REFERENCE

Voltage Range

Current Drain

TEMPERATURE SENSOR

Output Voltage8

Temperature Sensitivity

DIGITAL INPUTS

Logic Levels

VIL

VIH

IIL

IIH

DIGITAL OUTPUTS

Data Format9

Pipeline Delay10

VOL

VOH

POWER SUPPLIES

VDD

VIO

Standby Current11, 12

Power Dissipation

Energy per Conversion

TEMPERATURE RANGE13

Specified Performance

Test Conditions/Comments

2.5 V, @ 25°C

4.096 V, @ 25°C

2.5 V, @ 25°C

4.096 V, @ 25°C

VDD = 5 V ± 5%

1000 hours

CREF = 10 µF

REF input

REFIN input (buffered)

250 kSPS, REF = 5 V

@ 25°C

Min

2.490

4.086

0.5

0.5

Typ

2.500

4.096

1.2

2.3

±300

±10

±15

50

5

50

283

1

Max

Unit

2.510

4.106

V

V

V

V

µA

ppm/°C

ppm/V

ppm

ms

VDD + 0.3 V

VDD − 0.5 V

µA

mV

mV/°C

−0.3

0.7 × VIO

−1

−1

+0.3 × VIO V

VIO + 0.3 V

+1

µA

+1

µA

ISINK = +500 µA

ISOURCE = −500 µA

Specified performance

Specified performance

Operating range

VDD and VIO = 5 V, @ 25°C

VDD = 2.5 V, 100 SPS throughput

VDD = 2.5 V, 100 kSPS throughput

VDD = 2.5 V, 200 kSPS throughput

VDD = 5 V, 250 kSPS throughput

VDD = 5 V, 250 kSPS throughput with internal

reference

TMIN to TMAX

VIO − 0.3

2.3

2.3

1.8

50

1.5

1.45

2.9

10.8

13.5

50

−40

0.4

V

V

5.5

V

VDD + 0.3 V

VDD + 0.3 V

nA

µW

2.0

mW

4.0

mW

12.5

mW

15.5

mW

nJ

+85

°C

1 See the Analog Inputs section.

2 The bandwidth is set in the configuration register.

3 LSB means least significant bit. With the 5 V input range, one LSB = 305 µV.

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

5 With VDD = 5 V, unless otherwise noted.

6 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.

7 This is the output from the internal band gap.

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

9 Unipolar mode: serial 14-bit straight binary.

Bipolar mode: serial 14-bit twos complement.

10 Conversion results available immediately after completed conversion.

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

12 During acquisition phase.

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

Rev. F | Page 5 of 32

Share Link: