AD9260ASZ 查看數據表（PDF） - Analog Devices

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AD9260ASZ

High Speed Oversampling CMOS ADC with 16-Bit Resolution at a 2.5 MHz Output Word Rate

Analog Devices 

SPECIFICATIONS

CLOCK INPUT FREQUENCY RANGE

Table 1.

Parameter—Decimation Factor (N)

CLOCK INPUT (Modulator Sample Rate, fCLOCK)

OUTPUT WORD RATE (FS = fCLOCK/N)

AD9260

AD9260 (8)

1

20

0.125

2.5

AD9260 (4)

1

20

0.250

5

AD9260 (2)

1

20

0.500

10

AD9260 (1)

1

20

1

20

Unit

kHz min

MHz max

kHz min

MHz max

DC SPECIFICATIONS

AVDD = +5 V, DVDD = +3 V, DRVDD = +3 V, fCLOCK = 20 MSPS, VREF = +2.5 V, Input CML = 2.0 V TMIN to TMAX unless otherwise noted,

RBIAS = 2 kΩ.

Table 2.

Parameter—Decimation Factor (N)

RESOLUTION

INPUT REFERRED NOISE (TYP)

1.0 V Reference

2.5 V Reference1

ACCURACY

Integral Nonlinearity (INL)

Differential Nonlinearity (DNL)

No Missing Codes

Offset Error

Gain Error2

Gain Error3

TEMPERATURE DRIFT

Offset Error

Gain Error2

Gain Error3

POWER SUPPLY REJECTION

AVDD, DVDD, DRVDD (+5 V ±0.25 V)

ANALOG INPUT

Input Span

VREF= 1.0 V

VREF= 2.5 V

Input (VINA or VINB) Range

Input Capacitance

INTERNAL VOLTAGE REFERENCE

Output Voltage (1 V Mode)

Output Voltage Error (1 V Mode)

Output Voltage (2.5 V Mode)

Output Voltage Error (2.5 V Mode)

Load Regulation4

1 V REF

2.5 V REF

REFERENCE INPUT RESISTANCE

POWER SUPPLIES

Supply Voltages

AVDD

AD9260 (8)

16

AD9260 (4)

16

AD9260 (2)

16

AD9260 (1)

12

Unit

Bits min

1.40

0.68 (90.6)

2.4

1.2 (86)

6.0

3.7 (76)

1.3

1.0 (63.2)

LSB rms typ

LSB rms typ (dB typ)

± 0.75

± 0.50

16

0.9 (0.5)

2.75 (0.66)

1.35 (0.7)

± 0.75

± 0.50

16

(0.5)

(0.66)

(0.7)

± 0.75

± 0.50

16

(0.5)

(0.66)

(0.7)

± 0.3

± 0.25

12

(0.5)

(0.66)

(0.7)

LSB typ

LSB typ

Bits Guaranteed

% FSR max (typ @ +25°C)

% FSR max (typ @ +25°C)

% FSR max (typ @ +25°C)

2.5

2.5

2.5

2.5

ppm/°C typ

22

22

22

22

ppm/°C typ

7.0

7.0

7.0

7.0

ppm/°C typ

0.06

0.06

0.06

0.06

% FSR max

1.6

4.0

+0.5

+AVDD –0.5

10.2

1.6

4.0

+0.5

+AVDD –0.5

10.2

1.6

4.0

+0.5

+AVDD –0.5

10.2

1.6

4.0

+0.5

+AVDD –0.5

10.2

V p p Diff. max

V p p Diff. max

V min

V max

pF typ

1

1

1

1

V typ

± 14

± 14

± 14

± 14

mV max

2.5

2.5

2.5

2.5

V typ

± 35

± 35

± 35

± 35

mV max

0.5

0.5

0.5

0.5

mV max

2.0

2.0

2.0

2.0

mV max

8

8

8

8

kΩ

+5

+5

+5

+5

V (± 5%)

Rev. C | Page 3 of 44

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