ADC10D020 datasheet(7/32 Pages) NSC

7 / 32 page

Absolute Maximum Ratings (Notes 1,

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Positive Supply Voltages

3.8V

Voltage on Any Pin

−0.3V to (V

A or VD +0.3V)

Input Current at Any Pin (Note 3)

±25 mA

Package Input Current (Note 3)

±50 mA

Package Dissipation at T

A = 25˚C

See (Note 4)

ESD Susceptibility (Note 5)

Human Body Model

2500V

Machine Model

250V

Soldering Temperature,

Infrared, 10 sec. (Note 6)

235˚C

Storage Temperature

−65˚C to +150˚C

Operating Ratings (Notes 1, 2)

Operating Temperature Range

−40˚C

≤ T

A ≤ +85˚C

A,VD Supply Voltage

+2.7V to +3.6V

DR Supply Voltage

+1.5V to V

IN Differential Voltage Range

GAIN = Low

±V

REF/2

GAIN = High

±V

REF

CM Input Common Mode Range

GAIN = Low

REF/4 to (VA–VREF/4)

GAIN = High

REF/2 to (VA–VREF/2)

REF Voltage Range

0.8V to 1.5V

Digital Input Pins Voltage

Range

−0.3V to (V

A +0.3V)

Converter Electrical Characteristics

The following specifications apply for V

A =VD =VDR = +3.0 VDC,VREF = 1.0 VDC, GAIN = OF = 0V, OS = 3.0V, VIN (ac

coupled) = FSR = 1.0 V

P-P,CL = 15 pF, fCLK = 20 MHz, 50% Duty Cycle, RS =50Ω,trc =tfc < 4 ns, NOT offset corrected.

Boldface limits apply for T

A =TMIN to TMAX: all other limits TA = 25˚C (Note 7).

Symbol

Parameter

Conditions

Typical

(Note 8)

Limits

(Note 9)

Units

(Limits)

STATIC CONVERTER CHARACTERISTICS

INL

Integral Non-Linearity

±0.65

±1.8

LSB(max)

DNL

Differential Non-Linearity

±0.35

+1.2

−1.0

LSB(max)

LSB(min)

Resolution with No Missing Codes

Bits

OFF

Offset Error

Without Offset Correction

−5

+10

−16

LSB(max)

LSB(min)

With Offset Correction

+0.5

+1.5

−0.5

LSB(max)

LSB(min)

Gain Error

−4

−14

%FS(max)

%FS(min)

DYNAMIC CONVERTER CHARACTERISTICS

ENOB

Effective Number of Bits

IN = 1.0 MHz, VIN = FSR −0.1 dB

9.5

Bits

IN = 4.7 MHz, VIN = FSR −0.1 dB

9.5

9.0

Bits(min)

IN = 9.5 MHz, VIN = FSR −0.1 dB

9.5

Bits

IN = 19.5 MHz, VIN = FSR −0.1 dB

9.5

Bits

SINAD

Signal-to-Noise Plus Distortion

Ratio

IN = 1.0 MHz, VIN = FSR −0.1 dB

IN = 4.7 MHz, VIN = FSR −0.1 dB

dB(min)

IN = 9.5 MHz, VIN = FSR −0.1 dB

IN = 19.5 MHz, VIN = FSR −0.1 dB

SNR

Signal-to-Noise Ratio

IN = 1.0 MHz, VIN = FSR −0.1 dB

IN = 4.7 MHz, VIN = FSR −0.1 dB

dB(min)

IN = 9.5 MHz, VIN = FSR −0.1 dB

IN = 19.5 MHz, VIN = FSR −0.1 dB

THD

Total Harmonic Distortion

IN = 1.0 MHz, VIN = FSR −0.1 dB

−73

IN = 4.7 MHz, VIN = FSR −0.1 dB

−73

−62

dB(min)

IN = 9.5 MHz, VIN = FSR −0.1 dB

−73

IN = 19.5 MHz, VIN = FSR −0.1 dB

−73

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