AD9280ARSRL datasheet(6/24 Pages) AD

No de pièce	AD9280ARSRL

Description	Complete 8-Bit, 32 MSPS, 95 mW CMOS A/D Converter

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Fabricant	AD [Analog Devices]

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AD9280

–6–

REV. D

DEFINITIONS OF SPECIFICATIONS

Integral Nonlinearity (INL)

Integral nonlinearity refers to the deviation of each individual

code from a line drawn from “zero” through “full scale.” The

point used as “zero” occurs 1/2 LSB before the first code transi-

tion. “Full scale” is defined as a level 1 1/2 LSB beyond the last

code transition. The deviation is measured from the center of

each particular code to the true straight line.

Differential Nonlinearity (DNL, No Missing Codes)

An ideal ADC exhibits code transitions that are exactly 1 LSB

apart. DNL is the deviation from this ideal value. It is often

specified in terms of the resolution for which no missing codes

(NMC) are guaranteed.

Typical Characterization Curves

CODE OFFSET

1.0

0.5

–1.0

0

240

32

64

96

128

160

192

224

0

–0.5

Figure 3. Typical DNL

CODE OFFSET

1.0

0.5

–1.0

0

240

32

64

96

128

160

192

224

0

–0.5

Figure 4. Typical INL

Offset Error

The first transition should occur at a level 1 LSB above “zero.”

Offset is defined as the deviation of the actual first code transi-

tion from that point.

Gain Error

The first code transition should occur for an analog value 1 LSB

above nominal negative full scale. The last transition should

occur for an analog value 1 LSB below the nominal positive full

scale. Gain error is the deviation of the actual difference be-

tween first and last code transitions and the ideal difference

between the first and last code transitions.

Pipeline Delay (Latency)

The number of clock cycles between conversion initiation and

the associated output data being made available. New output

data is provided every rising edge.

INPUT FREQUENCY – Hz

60

55

20

1.00E+05

1.00E+08

1.00E+06

1.00E+07

50

45

25

40

35

30

–0.5 AMPLITUDE

–6.0 AMPLITUDE

–20.0 AMPLITUDE

Figure 5. SNR vs. Input Frequency

60

55

20

1.00E+05

1.00E+08

1.00E+06

1.00E+07

50

45

25

40

35

30

INPUT FREQUENCY – Hz

–0.5 AMPLITUDE

–6.0 AMPLITUDE

–20.0 AMPLITUDE

Figure 6. SINAD vs. Input Frequency

(AVDD = +3 V, DRVDD = +3 V, FS = 32 MHz (50% Duty Cycle), MODE = AVDD, 2 V Input

Span from 0.5 V to 2.5 V, External Reference, unless otherwise noted)

Numéro de pièce similaire - AD9280ARSRL

Fabricant	No de pièce	Fiches technique	Description
Analog Devices	AD9280ARSRL	438Kb / 25P	CMOS A/D Converter

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Analog Devices	AD9280ARSZ	365Kb / 24P	Complete 8-Bit, 32 MSPS, 95 mW CMOS A/D Converter REV. E
	AD9280	365Kb / 24P	Complete 8-Bit, 32 MSPS, 95 mW CMOS A/D Converter REV. E
	AD9200	341Kb / 24P	Complete 10-Bit, 20 MSPS, 80 mW CMOS A/D Converter REV. E
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Cadeka Microcircuits LL...	SPT7734	191Kb / 9P	8-BIT, 40 MSPS,175 mW A/D CONVERTER
Fairchild Semiconductor	SPT7734	86Kb / 9P	8-BIT, 40 MSPS,175 mW A/D CONVERTER
Texas Instruments	ADC1175-50	1Mb / 27P	[Old version datasheet] 8-Bit, 50 MSPS, 125 mW A/D Converter
National Semiconductor ...	ADC08351	492Kb / 15P	8-Bit, 42 MSPS, 40 mW A/D Converter
National Semiconductor ...	ADC08351	519Kb / 17P	8-Bit, 42 MSPS, 40 mW A/D Converter
Texas Instruments	ADC08351	1Mb / 25P	[Old version datasheet] 8-Bit, 42 MSPS, 40 mW A/D Converter

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