Datasheet

AD7730/AD7730L
–49–
Table XXIII. Output Noise vs. Input Range and Update Rate (CHP = 0)
Typical Output RMS Noise in nV
Output –3 dB SF Settling Time Settling Time Input Range Input Range Input Range Input Range
Data Rate Frequency Word Normal Mode Fast Mode = 80 mV = 40 mV = 20 mV = 10 mV
75 Hz 2.9 Hz 2048 332 ms 53.2 ms 320 215 135 100
100 Hz 3.9 Hz 1536 250 ms 40 ms 325 245 160 110
150 Hz 5.85 Hz 1024 166 ms 26.6 ms 410 275 180 130
300 Hz 11.7 Hz 512 83 ms 13.3 ms 590 370 265 180
600 Hz 23.4 Hz 256 41.6 ms 6.6 ms 910 580 350 220
Table XXIV. Peak-to-Peak Resolution vs. Input Range and Update Rate (CHP = 0)
Peak-to-Peak Resolution in Counts (Bits)
Output –3 dB SF Settling Time Settling Time Input Range Input Range Input Range Input Range
Data Rate Frequency Word Normal Mode Fast Mode = 80 mV = 40 mV = 20 mV = 10 mV
75 Hz 2.9 Hz 2048 332 ms 53.2 ms 85k (16.5) 62k (16) 49k (15.5) 33k (15)
100 Hz 3.9 Hz 1536 250 ms 40 ms 82k (16.5) 55k (15.5) 42k (15.5) 30k (15)
150 Hz 5.85 Hz 1024 166 ms 26.6 ms 65k (16) 48k (15.5) 36k (15) 25k (14.5)
300 Hz 11.7 Hz 512 83 ms 13.3 ms 45k (15.5) 36k (15) 25k (14.5) 18k (14)
600 Hz 23.4 Hz 256 41.6 ms 6.63 ms 30k (15) 23k (14.5) 19k (14) 15k (14)
REV. B