ADC12D040_05 datasheet(6/22 Pages) NSC | Dual 12-Bit, 40 MSPS, 600 mW A/D Converter with Internal/External Reference

6 page

Converter Electrical Characteristics (Continued)

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)

Third Harmonic

IN = 1 MHz, VIN = −0.5 dBFS

−84

IN = 10 MHz, VIN = −0.5 dBFS

−82

−69.5

dB (max)

SFDR

Spurious Free Dynamic Range

IN = 1 MHz, VIN = −0.5 dBFS

IN = 10 MHz, VIN = −0.5 dBFS

69.5

dB (min)

IMD

Intermodulation Distortion

IN = 9.6 MHz and 10.2 MHz,

each = −6.0 dBFS

−80

dBFS

INTER-CHANNEL CHARACTERISTICS

Channel — Channel Offset Match

±0.02

%FS

Channel — Channel Gain Error

Match

±0.05

%FS

Crosstalk

10 MHz Tested Channel. 15 MHz

Other Channel

−80

REFERENCE AND ANALOG INPUT CHARACTERISTICS

IN Input Capacitance (each pin to

GND)

IN = 2.5 Vdc

+ 0.7 V

rms

(CLK LOW)

(CLK HIGH)

REF

Input Reference Voltage (Note 13)

2.00

1.0

V (min)

2.4

V (max)

REF

Reference Input Resistance

100

Ω (min)

Analog Input Voltage Range

V (min)

V (max)

DC and Logic 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 T

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)

CLK, PD, OE DIGITAL INPUT CHARACTERISTICS

IN(1)

Logical “1” Input Voltage

D = 5.25V

2.0

V (min)

IN(0)

Logical “0” Input Voltage

D = 4.75V

1.0

V (max)

IN(1)

Logical “1” Input Current

IN = 5.0V

µA

IN(0)

Logical “0” Input Current

IN = 0V

−10

µA

Digital Input Capacitance

D0–D11 DIGITAL OUTPUT CHARACTERISTICS

OUT(1)

Logical “1” Output Voltage

OUT = −0.5 mA

DR = 2.5V

2.3

V (min)

DR =3V

2.7

V (min)

OUT(0)

Logical “0” Output Voltage

OUT = 1.6 mA, VDR =3V

0.4

V (max)

TRI-STATE Output Current

OUT = 2.5V or 5V

100

OUT = 0V

−100

Output Short Circuit Source

Current

OUT = 0V

−20

−I

Output Short Circuit Sink Current

OUT =VDR

OUT

Digital Output Capacitance

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