ADC12L080 datasheet(7/31 Pages) TI1

7 / 31 page

ADC12L080

www.ti.com

SNAS200B – OCTOBER 2004 – REVISED MARCH 2013

DC and Logic Electrical Characteristics

Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, VA = VD = +3.3V, VDR =

+2.5V, PD = 0V, VREF = +1.0V external, VCM = 1.65V, RS < 100Ω, fCLK = 80 MHz, tr = tf = 2 ns, fIN = 70 MHz, CL = 15 pF/pin.

Boldface limits apply for TJ = TMIN to TMAX: all other limits TJ = 25°C

(1) (2) (3) (4)

Units

Symbol

Parameter

Conditions

Typical(4)

Limits(4)

(Limits)

DYNAMIC CONVERTER CHARACTERISTICS

Full Power Bandwidth

-0.5 dBFS Input, Output at

−3 dB

450

MHz

fIN = 10 MHz, Differential VIN = −0.5 dBFS

dB (min)

fIN = 40 MHz, Differential VIN = −0.5 dBFS

SNR

Signal-to-Noise Ratio

fIN = 70 MHz, Differential VIN = −0.5 dBFS

dB (min)

fIN = 150 MHz, Differential VIN = −0.5 dBFS

fIN = 10 MHz, Differential VIN = −0.5 dBFS

dB (min)

fIN = 40 MHz, Differential VIN = −0.5 dBFS

64.5

SINAD

Signal-to-Noise & Distortion

fIN = 70 MHz, Differential VIN = −0.5 dBFS

62.7

dB (min)

fIN = 150 MHz, Differential VIN = −0.5 dBFS

fIN = 10 MHz, Differential VIN = −0.5 dBFS

10.7

10.2

Bits (min)

fIN = 40 MHz, Differential VIN = 0.5 dBFS

10.4

Bits

ENOB

Effective Number of Bits

fIN = 70 MHz, Differential VIN = −0.5 dBFS

10.3

10.1

Bits (min)

fIN = 150 MHz, Differential VIN = −0.5 dBFS

10.0

Bits

fIN = 10 MHz, Differential VIN = −0.5 dBFS

−77

-66

dB (max)

fIN = 40 MHz, Differential VIN = −0.5 dBFS

-74

THD

Total Harmonic Distortion

fIN = 70 MHz, Differential VIN = −0.5 dBFS

-71

-65

dB (max)

fIN = 150 MHz, Differential VIN = −0.5 dBFS

-70

fIN = 10 MHz, Differential VIN = −0.5 dBFS

−80

-68

dB (max)

fIN = 40 MHz, Differential VIN = −0.5 dBFS

-80

2nd

Second Harmonic Distortion

Harm

fIN = 70 MHz, Differential VIN = −0.5 dBFS

-80

-65.5

dB (max)

fIN = 150 MHz, Differential VIN = −0.5 dBFS

-79

fIN = 10 MHz, Differential VIN = −0.5 dBFS

−84

-69

dB (max)

fIN = 40 MHz, Differential VIN = −0.5 dBFS

-81

3rd

Third Harmonic Distortion

Harm

fIN = 70 MHz, Differential VIN = −0.5 dBFS

-79

-66

dB (max)

fIN = 150 MHz, Differential VIN = −0.5 dBFS

-78

fIN = 10 MHz, Differential VIN = −0.5 dBFS

dB (min)

fIN = 40 MHz, Differential VIN = −0.5 dBFS

SFDR

Spurious Free Dynamic Range

fIN = 70 MHz, Differential VIN = −0.5 dBFS

-65.5

dB (min)

fIN = 150 MHz, Differential VIN = −0.5 dBFS

fIN1 = 19.6MHz, fIN2 = 20.5 MHz,

dBFS

IMD

Intermodulation Distortion

each = -6.0 dBFS

(1)

The inputs are protected as shown below. Input voltages above VA or below GND will not damage this device, provided current is limited

per(6). However, errors in the A/D conversion can occur if the input goes above VA or below GND by more than 100 mV. As an example,

if VA is 3.3V, the full-scale input voltage must be ≤3.4V to ensure accurate conversions.

(2)

To guarantee accuracy, it is required that |VA–VD| ≤ 100 mV and separate bypass capacitors are used at each power supply pin.

(3)

With the test condition for VREF = +1.0V (2 VP-P differential input), the 12-bit LSB is 488 µV.

(4)

Typical figures are at TA = TJ = 25°C, and represent most likely parametric norms. Test limits are guaranteed to TI's AOQL (Average

Outgoing Quality Level).

Submit Documentation Feedback

Product Folder Links: ADC12L080

ADC12L080 Datasheet(PDF) 7 Page - Texas Instruments

ADC12L080 Datasheet(HTML) 7 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Datasheet Download

Link URL