AD9260AS(2000) View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD9260AS
(Rev.:2000)

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

Analog Devices 

AD9260–SPECIFICATIONS

CLOCK INPUT FREQUENCY RANGE

Parameter—Decimation Factor (N)

CLOCK INPUT (Modulator Sample Rate, fCLOCK)

AD9260 (8)

1

20

OUTPUT WORD RATE (FS = fCLOCK/N)

0.125

2.5

Specifications subject to change without notice

AD9260 (4)

1

20

0.250

5

AD9260 (2)

1

20

0.500

10

AD9260 (1)

1

20

1

20

Units

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 k⍀)

Parameter—Decimation Factor (N)

AD9260 (8) AD9260 (4) AD9260 (2) AD9260 (1) Units

RESOLUTION

16

16

16

12

Bits min

INPUT REFERRED NOISE (TYP)

1.0 V Reference

2.5 V Reference1

1.40

2.4

0.68 (90.6) 1.2 (86)

6.0

3.7 (76)

1.3

1.0 (63.2)

LSB rms typ

LSB rms typ (dB typ)

ACCURACY

Integral Nonlinearity (INL)

Differential Nonlinearity (DNL)

No Missing Codes

Offset Error

Gain Error2

Gain Error3

± 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)

TEMPERATURE DRIFT

Offset Error

Gain Error2

Gain Error3

2.5

2.5

2.5

2.5

22

22

22

22

7.0

7.0

7.0

7.0

ppm/°C typ

ppm/°C typ

ppm/°C typ

POWER SUPPLY REJECTION

AVDD, DVDD, DRVDD (+5 V ± 0.25 V) 0.06

0.06

0.06

0.06

% FSR max

ANALOG INPUT

Input Span

VREF = 1.0 V

VREF = 2.5 V

Input (VINA or VINB) Range

Input Capacitance

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

INTERNAL VOLTAGE REFERENCE

Output Voltage (1 V Mode)

1

1

1

1

Output Voltage Error (1 V Mode)

± 14

± 14

± 14

± 14

Output Voltage (2.5 V Mode)

2.5

2.5

2.5

2.5

Output Voltage Error (2.5 V Mode)

± 35

± 35

± 35

± 35

Load Regulation4

1 V REF

0.5

0.5

0.5

0.5

2.5 V REF

2.0

2.0

2.0

2.0

V typ

mV max

V typ

mV max

mV max

mV max

REFERENCE INPUT RESISTANCE

8

8

8

8

kΩ

–2–

REV. B

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