Rainbow Electronics MAX1033 - Manual (Page 8)

MAX1032/MAX1033
8-/4-Channel, ±12V Multirange Inputs,
Serial 14-Bit ADCs
8 _______________________________________________________________________________________
ANALOG SUPPLY CURRENT
vs. CONVERSION RATE
MAX1032/33 toc08
CONVERSION RATE (ksps)
I AVDD1
(mA)
200 150 100 50
0.5
1.0
1.5
2.0
2.5
3.0
0
0
EXTERNAL CLOCK MODE
PARTIAL
POWER-DOWN MODE
FULL
POWER-DOWN MODE
PREAMPLIFIER SUPPLY CURRENT
vs. CONVERSION RATE
MAX1032/33 toc09
I AVDD2
(mA)
5
10
15
20
25
0
CONVERSION RATE (ksps)
200 150 100 50 0
f CLK = 7.5MHz (NOTE 6)
EXTERNAL CLOCK MODE
FULL POWER-DOWN MODE,
PARTIAL POWER-DOWN MODE
Typical Operating Characteristics (continued)
(AV
DD1
= AV
DD2
= DV
DD
= DV
DDO
= 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f
CLK
= 3.5MHz (50% duty cycle),
external clock mode, V REF = 4.096V (external reference operation), REFCAP = AV DD1 , maximum single-ended bipolar input range
(±12V), C DOUT = 50pF, C SSTRB = 50pF; unless otherwise noted.)
DIGITAL SUPPLY CURRENT
vs. CONVERSION RATE
MAX1032/33 toc10
I DVDD
(mA)
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
0
CONVERSION RATE (ksps)
200 150 100 50
f CLK = 7.5MHz (NOTE 6)
FULL POWER-DOWN MODE
EXTERNAL CLOCK MODE,
PARTIAL POWER-DOWN MODE
DIGITAL I/O SUPPLY CURRENT
vs. CONVERSION RATE
MAX1032/33 toc11
CONVERSION RATE (ksps)
I DVDDO
(mA)
200 150 100 50
0.1
0.2
0.3
0.4
0.5
0.6
0
0
f CLK = 7.5MHz (NOTE 6)
EXTERNAL CLOCK MODE
FULL POWER-DOWN MODE,
PARTIAL POWER-DOWN MODE
Note 6: For partial power-down and full power-down modes, external clock mode was used for a burst of continuous samples.
Partial power-down or full power-down modes were entered thereafter. By using this method, the conversion rate was found
by averaging the number of conversions over the time starting from the first conversion to the end of the partial power-down
or full power-down modes.