THS0842

DUAL-INPUT, 8-BIT, 40 MSPS LOW-POWER ANALOG-TO-DIGITAL CONVERTER

WITH SINGLE OR DUAL PARALLEL BUS OUTPUT

SLAS246 – DECEMBER 1999

14

POST OFFICE BOX 655303

–140

–120

–100

–80

–60

–40

–20

0

02

46

8

10

12

14

16

18

20

f – Frequency – MHz

FAST FOURIER TRANSFORM

I Input Channel

AIN = 20 MHz

Figure 12

–140

–120

–100

–80

–60

–40

–20

0

0

2

4

6

8

1012

14

1618

20

f – Frequency – MHz

FAST FOURIER TRANSFORM

Q Input Channel

AIN = 20 MHz

Figure 13

† Unless otherwise noted AVDD = DVDD = DRVDD = 3 V, fCLK = 80 MHz, Analog Input = –1 dB FS, TA = 25°C.