MAX1403_02 Datasheet, PDF (10/36 Pages) Maxim Integrated Products – +3V, 18-Bit, Low-Power, Multichannel, Oversampling (Sigma-Delta) ADC

+3V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
Typical Operating Characteristics (continued)
(V+ = +3V, V_DD = +3V, V_REFIN+ = +1.25V, REFIN- = AGND, f_CLKIN = 2.4576MHz, transducer excitation currents disabled, T_A =
+25°C, unless otherwise noted.)
V_DD SUPPLY CURRENT vs. TEMPERATURE
(240sps OUTPUT DATA RATE UNBUFFERED)
450
400
350
300
250
200
150
100
50 ^{VDD = +3.6V}
(NOTE 30)
0
-50 -25 0
25 50 75 100
TEMPERATURE (°C)
V_DD SUPPLY CURRENT vs. TEMPERATURE
(480sps OUTPUT DATA RATE UNBUFFERED)
600
500
400
300
200
100 V_DD = +3.6V
(NOTE 30)
0
-50 -25 0
25 50 75 100
TEMPERATURE (°C)
V+ SUPPLY CURRENT vs. TEMPERATURE
(240sps OUTPUT DATA RATE)
5000
V+ SUPPLY CURRENT vs. TEMPERATURE
(480sps OUTPUT DATA RATE)
5000
4000
BUFFERED
4000
BUFFERED
3000
3000
2000
1000
UNBUFFERED
0
-50 -25 0
25 50 75 100
TEMPERATURE (°C)
2000
1000
UNBUFFERED
0
-50 -25 0
25 50 75 100
TEMPERATURE (°C)
Note 30: Minimize capacitive loading at CLKOUT for lowest V_DD supply current. Typical Operating Characteristics show V_DD
supply current with CLKOUT loaded by 120pF.
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