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ManualsBrandsTEXAS INSTRUMENTS ManualsData collecting ICsData acquisition IC - Analog front end (AFE) 24 Bit TQFP 64
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ADS1294, ADS1294R
ADS1296, ADS1296R
ADS1298, ADS1298R
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SBAS459I –JANUARY 2010–REVISED JANUARY 2012
Table 3. Input-Referred Noise (μV
RMS
/μV
PP
) in High-Resolution Mode
5V Analog Supply and 4V Reference
(1)
DR BITS OF OUTPUT –3dB
CONFIG1 DATA RATE BANDWIDTH PGA PGA PGA PGA PGA PGA PGA
REGISTER (SPS) (Hz) GAIN = 1 GAIN = 2 GAIN = 3 GAIN = 4 GAIN = 6 GAIN = 8 GAIN = 12
000 32000 8398 521/5388 260/2900 173/1946 130/1403 87/917 65/692 44/483
001 16000 4193 86/1252 43/633 29/402 22/298 15/206 11/141 7/91
010 8000 2096 17/207 9/112 6/71 4/57 3/36 3/29 2/18
011 4000 1048 6.4/48.2 3.4/25.9 2.417.7 1.9/15.4 1.5/11.2 1.3/9.6 1.1/8.2
100 2000 524 4.2/29.9 2.3/15.9 1.6/11.1 1.3/9.3 1.0/7.5 0.9/6.6 0.8/5.8
101 1000 262 2.9/18.8 1.6/10.4 1.1/7.8 0.9/6.1 0.7/4.9 0.6/4.7 0.6/3.9
110 500 131 2.0/12.8 1.1/7.2 0.8/5.2 0.7/4.0 0.5/3.3 0.5/3.3 0.4/2.7
(1) At least 1000 consecutive readings were used to calculate the RMS and peak-to-peak noise values in this table.
Table 4. Input-Referred Noise (μV
RMS
/μV
PP
) in Low-Power Mode
5V Analog Supply and 4V Reference
(1)
DR BITS OF OUTPUT –3dB
CONFIG1 DATA RATE BANDWIDTH PGA PGA PGA PGA PGA PGA PGA
REGISTER (SPS) (Hz) GAIN = 1 GAIN = 2 GAIN = 3 GAIN = 4 GAIN = 6 GAIN = 8 GAIN = 12
000 16000 4193 526/5985 263/2953 175/1918 132/1410 88/896 66/681 44/458
001 8000 2096 88/1201 44/619 29/411 22/280 15/191 11/139 7/83
010 4000 1048 17/208 9/103 6/62 4/52 3/37 2/25 2/16
011 2000 524 6.0/41.1 3.3/23.3 2.2/15.5 1.8/12.3 1.3/9.8 1.1/7.8 0.9/6.5
100 1000 262 4.1/27.1 2.3/14.8 1.5/10.1 1.2/8.1 0.9/6.0 0.8/5.4 0.7/4.4
101 500 131 2.9/17.4 1.6/9.6 1.1/6.6 0.9/5.9 0.7/4.3 0.6/3.4 0.5/3.2
110 250 65 2.1/11.9 1.1/6.6 0.8/4.6 0.6/3.7 0.5/3.0 0.4/2.5 0.4/2.2
(1) At least 1000 consecutive readings were used to calculate the RMS and peak-to-peak noise values in this table.
Table 5. Typical WCT Performance
ANY ONE ANY TWO ALL THREE
PARAMETER (A, B, or C) (A+B, A+C, or B+C) (A+B+C) UNIT
Integrated noise 540 382 312 nV
RMS
Power 53 59 65 μW
–3dB BW 30 59 89 kHz
Slew rate BW limited BW limited BW limited —
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