AD7952 Ver la hoja de datos (PDF) - Analog Devices

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componentes Descripción

Fabricante

AD7952

14-Bit, 1 MSPS, Differential, Programmable Input PulSAR® ADC

Analog Devices 

AD7952

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD = DVDD = 5 V; OVDD = 5 V; VCC = 15 V; VEE = −15 V; VREF = 5 V; TA = 25°C.

1.0

1.0

POSITIVE INL = +0.15

NEGATIVE INL = –0.15

0.5

0.5

Data Sheet

POSITIVE DNL = +0.27

NEGATIVE DNL = –0.27

0

0

–0.5

–0.5

–1.0

0

250

200

4096

8192

12288

CODE

Figure 5. Integral Nonlinearity vs. Code

16384

NEGATIVE INL

POSITIVE INL

150

100

50

0

–1.0 –0.8 –0.6 –0.4 –0.2 0

0.2 0.4 0.6 0.8 1.0

INL DISTRIBUTION (LSB)

Figure 6. Integral Nonlinearity Distribution (239 Devices)

300000

250000

261120

200000

150000

100000

50000

0

0

1FFF

0

2000

2001

0

2002

0

2003

CODE IN HEX

Figure 7. Histogram of 261,120 Conversions of a DC Input

at the Code Center

–1.0

0

4096

8192

CODE

12288

Figure 8. Differential Nonlinearity vs. Code

16384

200

NEGATIVE DNL

180

POSITIVE DNL

160

140

120

100

80

60

40

20

0

–1.0 –0.8 –0.6 –0.4 –0.2 0

0.2 0.4 0.6 0.8 1.0

DNL DISTRIBUTION (LSB)

Figure 9. Differential Nonlinearity Distribution (239 Devices)

140000

120000

132052 129068

100000

80000

60000

40000

20000

0

0

8192

0

8193

8194

8195

CODE IN HEX

0

8196

0

8197

Figure 10. Histogram of 261,120 Conversions of a DC Input

at the Code Transition

Rev. A | Page 12 of 32

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