AD7091R-5BCPZ-RL7(Rev0) データシートの表示（PDF） - Analog Devices

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AD7091R-5BCPZ-RL7
(Rev.:Rev0)

4-Channel, I2C, Ultralow Power, 12-Bit ADC in 20-Lead LFCSP/TSSOP

Analog Devices 

Data Sheet

TYPICAL PERFORMANCE CHARACTERISTICS

1.0

0.8

0.6

0.4

0.2

0

–0.2

–0.4 VDD = 3.0V

–0.6

VREF = 2.5V

fSCL = 400kHz

–0.8

TA = 25°C

POSITIVE INL = +0.43 LSB

NEGATIVE INL = –0.66 LSB

–1.0

0

512 1024 1536 2048

CODE

2560

3072

3584

Figure 5. Integral Nonlinearity vs. Code

4095

1.0

VDD = 5.25V

0.8 VREF = EXTERNAL

fSCL = 400kHz

0.6 TA = 25°C

0.4

MAX INL (LSB)

0.2

0

–0.2

–0.4

MIN INL (LSB)

–0.6

–0.8

–1.0

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

REFERENCE INPUT VOLTAGE (V)

Figure 6. Minimum/Maximum INL vs. External Reference Input Voltage

8000

7000

6000

VDD = VDRIVE = 3.3V

VREF = 2.5V

8192 SAMPLES

TA = 25°C

7218

5000

4000

3000

2000

1000

0

290

2028

2029

CODE

684

2030

Figure 7. Histogram of a DC Input at Code Center

AD7091R-5

1.0

0.8

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

–0.8

VDD = 3.0V

VREF = 2.5V

fSCL = 400kHz

TA = 25°C

POSITIVE DNL = +0.41 LSB

NEGATIVE DNL = –0.41 LSB

–1.0

0

512 1024 1536 2048

CODE

2560

3072

3584

Figure 8. Differential Nonlinearity vs. Code

4095

1.0

VDD = 5.25V

0.8 VREF = EXTERNAL

fSCL = 400kHz

0.6 TA = 25°C

0.4

MAX DNL (LSB)

0.2

0

–0.2

–0.4

MIN DNL (LSB)

–0.6

–0.8

–1.0

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

REFERENCE INPUT VOLTAGE (V)

Figure 9. Minimum/Maximum DNL vs. External Reference Input Voltage

5000

4500

4000

VDD = VDRIVE = 3.3V

VREF = 2.5V

8192 SAMPLES

TA = 25°C

3762

3500

4353

3000

2500

2000

1500

1000

500

27

0

2042

2043

2044

CODE

50

2045

Figure 10. Histogram of a DC Input at Code Transition

Rev. 0 | Page 9 of 34

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