ADS6445 datasheet(32/75 Pages) STMICROELECTRONICS

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fIN − Input Frequency − MHz

100

150

200

250

G005

Gain = 0 dB

Gain = 3.5 dB

fIN − Input Frequency − MHz

100

150

200

250

G006

Gain = 0 dB

Gain = 3.5 dB

Fin − Input Frequency − MHz

110 130 150 170 190 210 230

G007

Input adjusted to get −1dBFS input

1 dB

0 dB

2 dB

4 dB

5 dB

6 dB

3 dB

Fin − Input Frequency − MHz

100

120

140

160

180

200

220

G008

2 dB

5 dB

1 dB

0 dB

3 dB

3.5 dB

4 dB

6 dB

AVDD − Supply Voltage − V

3.0

3.1

3.2

3.3

3.4

3.5

3.6

G009

SNR

SFDR

fIN = 50.1 MHz

LVDD = 3.3 V

LVDD − Supply Voltage − V

3.0

3.1

3.2

3.3

3.4

3.5

3.6

G010

fIN = 50.1 MHz

AVDD = 3.3 V

SNR

SFDR

ADS6445, ADS6444

ADS6443, ADS6442

SLAS531 – MAY 2007

ADS6445 (F

srated = 125 MSPS) (continued)

SFDR vs INPUT FREQUENCY

SNR vs INPUT FREQUENCY

Figure 10.

Figure 11.

SFDR vs INPUT FREQUENCY ACROSS GAINS

SINAD vs INPUT FREQUENCY ACROSS GAINS

Figure 12.

Figure 13.

PERFORMANCE vs AVDD

PERFORMANCE vs LVDD

Figure 14.

Figure 15.

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