MAX1464 Datasheet, PDF (34/47 Pages) Maxim Integrated Products – Low-Power, Low-Noise Multichannel Sensor Signal Processor

Low-Power, Low-Noise Multichannel
Sensor Signal Processor
Table 19. ADC Bias Current (BIASn[2:0],
Where n = 1, 2, or T)
BIASn[2:0]
FRACTION
OF FULL
BIAS
CURRENT
MAXIMUM
ADC CLOCK
FREQUENCY
(Hz)
CLKn[2:0]
000
1/8
125k
011
001
2/8
250k
011
010
3/8
250k
010
011
4/8
500k
010
100
5/8
500k
001
101
6/8
500k
001
110
7/8
1M
000
111
8/8
1M
000
Table 20. ADC Reference Voltage Source
(REFn[1:0], Where n = 1 or 2)
REFn[1:0]
00
01
1X
ADC REFERENCE
V_DD
2 x V_REF (external)
4 x V_BG (internal bandgap)
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