ADS6445 datasheet(31/75 Pages) STMICROELECTRONICS

Nome de Peças	ADS6445

Descrição Electrónicos	QUAD CHANNEL, 14-BIT, 125/105/80/65 MSPS ADC WITH SERIAL LVDS OUTPUTS

PDF	75 Pages

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Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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TYPICAL CHARACTERISTICS

ADS6445 (F

srated = 125 MSPS)

f − Frequency − MHz

−160

−140

−120

−100

−80

−60

−40

−20

G001

SFDR = 88 dBc

SINAD = 74 dBFS

SNR = 74.3 dBFS

THD = 87.6 dBc

f − Frequency − MHz

−160

−140

−120

−100

−80

−60

−40

−20

G002

SFDR = 86 dBc

SINAD = 72.63 dBFS

SNR = 72.76 dBFS

THD = 85 dBc

f − Frequency − MHz

−160

−140

−120

−100

−80

−60

−40

−20

G003

SFDR = 77.9 dBc

SINAD = 68 dBFS

SNR = 69.2 dBFS

THD = 75.3 dBc

f − Frequency − MHz

−160

−140

−120

−100

−80

−60

−40

−20

G004

fIN1 = 185.1 MHz, –7 dBFS

fIN2 = 190.1 MHz, –7 dBFS

2-Tone IMD = –86 dBFS

SFDR = –95 dBFS

ADS6445, ADS6444

ADS6443, ADS6442

SLAS531 – MAY 2007

All plots are at 25

°C, AVDD = LVDD = 3.3 V, maximum rated sampling frequency, sine wave input clock, 1.5 V

PP differential

clock amplitude, 50% clock duty cycle, –1 dBFS differential analog input, internal reference mode, 0 dB gain (unless

otherwise noted)

FFT for 10 MHz INPUT SIGNAL

FFT for 100 MHz INPUT SIGNAL

Figure 6.

Figure 7.

FFT for 230 MHz INPUT SIGNAL

INTERMODULATION DISTORTION (IMD) vs FREQUENCY

Figure 8.

Figure 9.

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