SBAS760 Data sheet

SBAS760C March 2018 – January 2019 ADS1260 , ADS1261

PRODUCTION DATA.

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)

RHB|32

Thermal pad, mechanical data (Package|Pins)

Orderable Information

9.3.10.4 50-Hz and 60-Hz Normal Mode Rejection

To reduce 50-Hz and 60-Hz noise interference, configure the conversion period to reject the noise at 50 Hz and 60 Hz. 50-Hz and 60-Hz noise rejection depends on the filter type. Table 7 summarizes the 50-Hz and 60-Hz noise rejection versus data rate and filter type. The table values are based on 2% and 6% tolerance of noise frequency to ADC clock frequency. For the sinc filter mode, noise rejection is increased by increasing the order of the filter. Common mode noise is also rejected at these frequencies.

Table 7. 50-Hz and 60-Hz Normal Mode Rejection

DATA RATE (SPS)	FILTER TYPE	DIGITAL FILTER RESPONSE (dB)
DATA RATE (SPS)	FILTER TYPE	50 Hz ±2%	60 Hz ±2%	50 Hz ±6%	60 Hz ±6%
2.5	FIR	–113	–99	–88	–80
2.5	Sinc1	–36	–37	–40	–37
2.5	Sinc2	–72	–74	–80	–74
2.5	Sinc3	–108	–111	–120	–111
2.5	Sinc4	–144	–148	–160	–148
5	FIR	–111	–95	–77	–76
5	Sinc1	–34	–34	–30	–30
5	Sinc2	–68	–68	–60	–60
5	Sinc3	–102	–102	–90	–90
5	Sinc4	–136	–136	–120	–120
10	FIR	–111	–94	–73	–68
10	Sinc1	–34	–34	–25	–25
10	Sinc2	–68	–68	–50	–50
10	Sinc3	–102	–102	–75	–75
10	Sinc4	–136	–136	–100	–100
16.6	Sinc1	–34	–21	–24	–21
16.6	Sinc2	–68	–42	–48	–42
16.6	Sinc3	–102	–63	–72	–63
16.6	Sinc4	–136	–84	–96	–84
20	FIR	–95	–94	–66	–66
20	Sinc1	–18	–34	–18	–24
20	Sinc2	–36	–68	–36	–48
20	Sinc3	–54	–102	–54	–72
20	Sinc4	–72	–136	–72	–96
50	Sinc1	–34	–15	–24	–15
50	Sinc2	–68	–30	–48	–30
50	Sinc3	–102	–45	–72	–45
50	Sinc4	–136	–60	–96	–60
60	Sinc1	–13	–34	–12	–24
60	Sinc2	–27	–68	–24	–48
60	Sinc3	–40	–102	–36	–72
60	Sinc4	–53	–136	–48	–96