Rainbow-electronics MAX1083 Bedienungsanleitung PDF herunterladen (Seite 17)

MAX1082/MAX1083

300ksps/400ksps, Single-Supply, 4-Channel,

Serial 10-Bit ADCs with Internal Reference

______________________________________________________________________________________ 17

SCLK

11 15885812 12 1216 16 1 516

B4B9S0B4B9S0

DIN

SSTRB

DOUT

CONTROL BYTE 0SSSCONTROL BYTE 1

CONVERSION RESULT 1CONVERSION RESULT 0

CONTROL BYTE 2 S ETC

B4B9

Figure 7. Continuous 16-Clock/Conversion Timing

0.50

0.25

1.00

0.75

1.25

1.50

0.0001 0.010.001 0.1 1 10

TIME IN SHUTDOWN (s)

REFERENCE POWER-UP DELAY (ms)

MAX1083, V

DD1

DD2

3.0V

LOAD

= 20pF

CODE = 1010100000

1000

100

0.1 101 100 1k 10k

SAMPLING RATE (sps)

SUPPLY CURRENT (µA)

4 CHANNELS

1 CHANNEL

10,000

1000

100

1 10010 1k 10k 100k

SAMPLING RATE (sps)

SUPPLY CURRENT (µA)

MAX1083, V

DD1

DD 2

3.0V

LOAD

= 20pF

CODE = 1010100000

4 CHANNELS

1 CHANNEL

Figure 8. Reference Power-Up Delay vs. Time in Shutdown

Figure 9a. Average Supply Current vs. Conversion Rate with

Internal Reference in FULLPD

Figure 9b. Average Supply Current vs. Conversion Rate with

External Reference in FULLPD

2.5

2.0

1.0

1.5

0.5

150

250

100

200

300 350

SAMPLING RATE (sps)

SUPPLY CURRENT (mA)

MAX1083, V

DD1

DD2

3.0V

LOAD

= 20pF

CODE = 1010100000

REDP

FASTPD

NORMAL OPERATION

Figure 10. Average Supply Current vs. Sampling Rate (in

FASTPD, REDP, and Normal Operation)

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24

MAX1082/MAX1083 1

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