AD9280 datasheet(3/25 Pages) AD

부품명	AD9280

상세설명	CMOS A/D Converter

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제조업체	AD [Analog Devices]

홈페이지	http://www.analog.com

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AD9280–SPECIFICATIONS

(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, TMIN to TMAX unless otherwise noted)

Parameter

Symbol

Min

Typ

Max

Units

Condition

RESOLUTION

8

Bits

CONVERSION RATE

FS

32

MHz

DC ACCURACY

Differential Nonlinearity

DNL

±0.2

±1.0

LSB

REFTS = 2.5 V, REFBS = 0.5 V

Integral Nonlinearity

INL

±0.3

±1.5

LSB

Offset Error

EZS

±0.2

±1.8

% FSR

Gain Error

EFS

±1.2

±3.9

% FSR

REFERENCE VOLTAGES

Top Reference Voltage

REFTS

1

AVDD

V

Bottom Reference Voltage

REFBS

GND

AVDD – 1 V

Differential Reference Voltage

2

V p-p

Reference Input Resistance

1

10

k

Ω

REFTS, REFBS: MODE = AVDD

4.2

k

Ω

Between REFTF & REFBF: MODE = AVSS

ANALOG INPUT

Input Voltage Range

AIN

REFBS

REFTS

V

REFBS Min = GND: REFTS Max = AVDD

Input Capacitance

CIN

1

pF

Switched

Aperture Delay

tAP

4ns

Aperture Uncertainty (Jitter)

tAJ

2ps

Input Bandwidth (–3 dB)

BW

Full Power (0 dB)

300

MHz

DC Leakage Current

43

µA

Input =

±FS

INTERNAL REFERENCE

Output Voltage (1 V Mode)

VREF

1

V

REFSENSE = VREF

Output Voltage Tolerance (1 V Mode)

±10

±25

mV

Output Voltage (2 V Mode)

VREF

2

V

REFSENSE = GND

Load Regulation (1 V Mode)

0.5

2

mV

1 mA Load Current

POWER SUPPLY

Operating Voltage

AVDD

2.7

3

5.5

V

DRVDD

2.7

3

5.5

V

Supply Current

IAVDD

31.7

36.7

mA

AVDD = 3 V, MODE = AVSS

Power Consumption

PD

95

110

mW

AVDD = DRVDD = 3 V, MODE = AVSS

Power-Down

4

mW

STBY = AVDD, MODE and CLOCK

= AVSS

Gain Error Power Supply Rejection

PSRR

1

% FS

DYNAMIC PERFORMANCE (AIN = 0.5 dBFS)

Signal-to-Noise and Distortion

SINAD

f = 3.58 MHz

46.4

49

dB

f = 16 MHz

48

dB

Effective Bits

f = 3.58 MHz

7.8

Bits

f = 16 MHz

7.7

Bits

Signal-to-Noise

SNR

f = 3.58 MHz

47.8

49

dB

f = 16 MHz

48

dB

Total Harmonic Distortion

THD

f = 3.58 MHz

–62

–49.5

dB

f = 16 MHz

–58

dB

Spurious Free Dynamic Range

SFDR

f = 3.58 MHz

66

51.4

dB

f = 16 MHz

61

dB

Differential Phase

DP

0.2

Degree

NTSC 40 IRE Mod Ramp

Differential Gain

DG

0.08

%

REV. E

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