ADC12D040 datasheet(5/22 Pages) NSC

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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.

A,VD,VDR

6.5V

D + 0.3V

A–VD|

≤ 100 mV

Voltage on Any Input or Output 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

Human Body Model (Note 5)

2500V

Machine Model (Note 5)

250V

Soldering Temperature,

Infrared, 10 sec. (Note 6)

235˚C

Storage Temperature

−65˚C to +150˚C

Operating Ratings (Notes 1, 2)

Operating Temperature

−40˚C

≤ T

≤ +85˚C

Supply Voltage (V

A,VD)

+4.75V to +5.25V

Output Driver Supply (V

DR)

+2.35V to V

REF Input

1.0V to 2.4V

CLK, PD, OE

−0.5V to (V

D + 0.5V)

Analog Input Pins

−0V to (V

A − 0.5V)

Input Common Mode Voltage

CM)

REF/2 to VA −VREF

|AGND–DGND|

≤100mV

Package Thermal Resistance

Package

J-A

64-Lead TQFP

50˚C / W

Converter Electrical Characteristics

Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V

A VD +5V, VDR +3.0V, PD

= 0V, INT/EXT = V

D,VREF = +2.0V, OEA, OEB = 0V, fCLK = 40 MHz, tr =tf = 3 ns, CL = 20 pF/pin. Boldface limits apply for

J =TMIN to TMAX: all other limits TJ = 25˚C (Notes 7, 8, 9)

Symbol

Parameter

Conditions

Typical

(Note 10)

Limits

(Note 10)

Units

(Limits)

STATIC CONVERTER CHARACTERISTICS

Resolution with No Missing Codes

Bits (min)

INL

Integral Non Linearity (Note 11)

±0.7

±2.0

LSB (max)

DNL

Differential Non Linearity

±0.4

±1.0

LSB (max)

Gain Error

Positive Error

0.51

+2.8/−1.9

%FS

Negative Error

0.68

+4/−2.7

%FS

TC GE

Gain Error Tempco

External Reference

ppm/oC

Internal Reference

100

ppm/oC

OFF

Offset Error (V

IN+=VIN−)

−0.1

±1.2

%FS (max)

OFF

Offset Error Tempco

External Reference

ppm/oC

Internal Reference

ppm/oC

Under Range Output Code

Over Range Output Code

4095

DYNAMIC CONVERTER CHARACTERISTICS

FPBW

Full Power Bandwidth

0 dBFS Input, Output at −3 dB

100

MHz

SNR

Signal-to-Noise Ratio

IN = 1 MHz, VIN = −0.5 dBFS

IN = 10 MHz, VIN = −0.5 dBFS

66.5

dB (min)

SINAD

Signal-to-Noise and Distortion

IN = 1 MHz, VIN = −0.5 dBFS

IN = 10 MHz, VIN = −0.5 dBFS

65.6

dB (min)

ENOB

Effective Number of Bits

IN = 1 MHz, VIN = −0.5 dBFS

11.1

Bits

IN = 10 MHz, VIN = −0.5 dBFS

10.9

10.6

Bits (min)

THD

Total Harmonic Distortion

IN = 1 MHz, VIN = −0.5 dBFS

−80

IN = 10 MHz, VIN = −0.5 dBFS

−78

−69

dB (max)

Second Harmonic

IN = 1 MHz, VIN = −0.5 dBFS

−84

IN = 10 MHz, VIN = −0.5 dBFS

−80

−73

dB (max)

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