Omega OMB-DAQ-2416_4AO Input bandwidth, Noise performance

OMB-DAQ-2416-4AO User's Guide								Specifications
	Range	A/D	Gain error	Offset	INL	Absolute	Gain	Offset
		data	(% of	error	error (%	accuracy	temperature	temperature
		rate	reading)		of		coefficient (%	coefficient
					range)		reading/°C)	(µV/°C)
		60 S/s	0.035	6 µV	0.0009	33.866 µV	0.0006	1
		50 S/s	0.035	6 µV	0.0009	34.026 µV	0.0006	1
		25 S/s	0.035	6 µV	0.0009	33.933 µV	0.0006	1
		10 S/s	0.035	6 µV	0.0009	33.937 µV	0.0006	1
		5 S/s	0.035	6 µV	0.0009	33.969 µV	0.0006	1
		2.5 S/s	0.035	6 µV	0.0009	33.934 µV	0.0006	1

Input bandwidth

	Table 13. input bandwidth
A/D data rate		-3 dB Bandwidth (Hz)
3750 S/s		1615
2000 S/s		878
1000 S/s		441
500 S/s		221
100 S/s		44.2
60 S/s		26.5
50 S/s		22.1
25 S/s		11.1
10 S/s		4.42
5 S/s		2.21
2.5 S/s		1.1

Noise performance

For the peak-to-peak noise distribution test, a differential input channel is connected to GND at the input terminal block, and 50,000 samples are acquired at the maximum rate available at each setting.

Table 14. Peak-to-peak noise performance specifications (µV)

	A/D data rate
Range	3750 S/s	2000 S/s	1000 S/s	500 S/s	100 S/s	60 S/s	50 S/s	25 S/s	10 S/s	5 S/s	2.5 S/s
±20 V	230.31	186.92	126.84	100.14	57.22	57.22	49.59	47.58	23.84	23.84	14.31
±10 V	126.84	100.14	71.76	45.06	30.52	30.52	26.70	19.07	11.92	9.54	9.54
±5 V	56.74	47.56	34.21	25.87	16.21	14.31	14.31	14.30	5.96	4.77	4.77
±2.5 V	32.96	28.79	17.94	14.19	7.51	7.09	7.09	5.72	3.81	2.86	2.38
±1.25 V	18.57	17.52	13.83	9.30	5.48	5.48	5.01	3.81	3.34	3.34	2.86
±0.625 V	18.88	16.58	8.45	7.41	5.32	4.80	4.38	3.86	2.50	2.61	1.98
±0.3125 V	15.33	14.76	8.19	6.94	4.75	4.69	4.49	3.70	3.34	2.56	2.45
±0.15625 V	13.28	16.84	7.47	6.61	5.70	4.48	4.48	4.24	2.66	3.07	2.29
±0.078125 V	13.47	15.02	9.17	6.88	4.28	4.16	4.00	3.57	2.28	2.13	2.40

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