ADC081500 datasheet(7/32 Pages) NSC

Part #	ADC081500

Description	High Performance, Low Power, 8-Bit, 1.5 GSPS A/D Converter

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Manufacturer	NSC [National Semiconductor (TI)]

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Absolute Maximum Ratings

(Notes 1, 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage (V

A,VDR)

2.2V

Voltage on Any Input Pin

−0.15V to (V

A

+0.15V)

Ground Difference

|GND - DR GND|

0V to 100 mV

Input Current at Any Pin (Note 3)

±25 mA

Package Input Current (Note 3)

±50 mA

Power Dissipation at T

A

≤ 85˚C

2.0 W

ESD Susceptibility (Note 4)

Human Body Model

Machine Model

2500V

250V

Soldering Temperature, Infrared,

10 seconds, (Note 5), (Applies

to standard plated package only)

235˚C

Storage Temperature

−65˚C to +150˚C

Operating Ratings (Notes 1, 2)

Ambient Temperature Range

−40˚C

≤ T

A

≤ +85˚C

Supply Voltage (V

A)

+1.8V to +2.0V

Driver Supply Voltage (V

DR)

+1.8V to V

A

Analog Input Common Mode

Voltage

V

CMO ±50mV

V

IN+, VIN- Voltage Range

(Maintaining Common Mode)

200mV to V

A

Ground Difference

(|GND - DR GND|)

0V

CLK Pins Voltage Range

0V to V

A

Differential CLK Amplitude

0.4V

P-P to 2.0VP-P

Package Thermal Resistance

Package

θ

JA

θ

JC (Top of

Package)

θ

J-PAD

(Thermal

Pad)

128-Lead

Exposed Pad

LQFP

26˚C / W

10˚C / W

2.8˚C / W

Converter Electrical Characteristics

The following specifications apply after calibration for V

A =VDR = +1.9VDC, OutV = 1.9V, VIN (a.c. coupled) Full Scale Range =

differential 870mV

P-P,CL = 10 pF, Differential (a.c. coupled) sinewave input clock, fCLK = 1.5 GHz at 0.5VP-P with 50% duty

cycle, V

BG = Floating, Normal Control Mode, Single Data Rate Mode, REXT = 3300

Ω ±0.1%, Analog Signal Source Impedance

= 100

Ω Differential. Boldface limits apply for T

A =TMIN to TMAX. All other limits TA = 25˚C, unless otherwise noted. (Notes 6,

7)

Symbol

Parameter

Conditions

Typical

(Note 8)

Limits

(Note 8)

Units

(Limits)

STATIC CONVERTER CHARACTERISTICS

INL

Integral Non-Linearity (Best fit)

DC Coupled, 1MHz Sine Wave

Overanged

±0.3

±0.9

LSB (max)

DNL

Differential Non-Linearity

DC Coupled, 1MHz Sine Wave

Overanged

±0.15

±0.6

LSB (max)

Resolution with No Missing

Codes

8

Bits

V

OFF

Offset Error

-0.45

−1.5

1.0

LSB (min)

LSB (max)

V

OFF_ADJ

Input Offset Adjustment Range

Extended Control Mode

±45

mV

PFSE

Positive Full-Scale Error

(Note 9)

−0.6

±25

mV (max)

NFSE

Negative Full-Scale Error

(Note 9)

−1.31

±25

mV (max)

FS_ADJ

Full-Scale Adjustment Range

Extended Control Mode

±20

±15

%FS

DYNAMIC CONVERTER CHARACTERISTICS

FPBW

Full Power Bandwidth

1.7

GHz

B.E.R.

Bit Error Rate

10

-18

Error/Sample

Gain Flatness

d.c. to 500 MHz

±0.5

dBFS

d.c. to 1 GHz

±1.0

dBFS

ENOB

Effective Number of Bits

f

IN = 373 MHz, VIN = FSR − 0.5 dB

7.4

7.0

Bits (min)

f

IN = 748 MHz, VIN = FSR − 0.5 dB

7.3

Bits (min)

SINAD

Signal-to-Noise Plus Distortion

Ratio

f

IN = 373 MHz, VIN = FSR − 0.5 dB

46.3

43.9

dB (min)

f

IN = 748 MHz, VIN = FSR − 0.5 dB

45.4

dB (min)

SNR

Signal-to-Noise Ratio

f

IN = 373 MHz, VIN = FSR − 0.5 dB

47

44.5

dB (min)

f

IN = 748 MHz, VIN = FSR − 0.5 dB

46.3

dB (min)

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