Rainbow Electronics MX7705 - Manual (Page 5)

MX7705
16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADC
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER REQUIREMENTS
Power-Supply Voltage V DD 2.70 5.25 V
V DD = 5V 0.45 Unbuffered
f
CLKIN
=1MHz,
gain =1 to 128 V DD = 3V 0.32
V DD = 5V 0.7 Buffered,
f
CLKIN
=1MHz,
gain =1 to 128 V DD = 3V 0.6
V DD = 5V,
gain = 1 to 4
0.6
V DD = 5V,
gain = 8 to 128
0.85
V DD = 3V,
gain = 1 to 4
0.4
Unbuffered,
f
CLKIN = 2.4576MHz
V DD = 3V,
gain = 8 to 128
0.6
V DD = 5V,
gain = 1 to 4
0.9
V DD = 5V,
gain = 8 to 128
1.3
V DD = 3V,
gain = 1 to 4
0.7
Buffered,
f
CLKIN = 2.4576MHz
V DD = 3V,
gain = 8 to 128
1.1
mA
V DD = 5V 16
Power-Supply Current (Note 12) I DD
Power-down mode
(Note 13)
V DD = 3V 8
µA
V DD = 4.75V to 5.25V (Note 14)
Power-Supply Rejection Ratio PSRR
V DD = 2.7V to 3.6V (Note 14)
dB
EXTERNAL CLOCK TIMING SPECIFICATIONS
CLKIN Frequency f CLKIN (Note 15) 400 2500 kHz
Duty Cycle 40 60 %
ELECTRICAL CHARACTERISTICS (continued)
(V DD = 3V or 5V, GND = 0, V REF+ = 1.225V for V DD = 3V and V REF+ = 2.5V for V DD = 5V, V REF- = GND, external f CLKIN =
2.4576MHz, CLKDIV bit = 0, C REF+ to GND = 0.1µF, C REF - to GND = 0.1µF, T A = T MIN to T MAX , unless otherwise noted.)