MAX1245ACAP Просмотр технического описания (PDF) - Maxim Integrated

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MAX1245ACAP

+2.375V, Low-Power, 8-Channel, Serial 12-Bit ADC

Maxim Integrated 

+2.375V, Low-Power, 8-Channel,

Serial 12-Bit ADC

CLOCK

MODE

SHDN

DIN

SETS EXTERNAL

CLOCK MODE

SXXXXX11

DOUT

12 DATA BITS

MODE

POWERED UP

EXTERNAL

EXTERNAL

SETS SOFTWARE SETS EXTERNAL

POWER-DOWN

CLOCK MODE

SX X XXX0 0

SXX XXX1 1

12 DATA BITS

VALID INVALID

DATA DATA

POWERED UP

SOFTWARE

POWER-DOWN

HARDWARE

POWER-

DOWN

POWERED UP

Figure 12a. Timing Diagram Power-Down Modes, External Clock

CLOCK

MODE

DIN

DOUT

SETS INTERNAL

CLOCK MODE

SXXXXX10

INTERNAL

SETS

POWER-DOWN

SX X XXX0 0

DATA VALID

SSTRB

MODE

CONVERSION

POWERED UP

CONVERSION

S

DATA VALID

SOFTWARE

POWER-DOWN

POWERED UP

Figure 12b. Timing Diagram Power-Down Modes, Internal Clock

Table 4. Software Power-Down and

Clock Mode

PD1

PD0

1

1

1

0

0

1

0

0

DEVICE MODE

External Clock

Internal Clock

Unassigned

Power-Down

Table 5. Hard-Wired Power-Down and

Internal Clock Frequency

SHDN

STATE

DEVICE

MODE

INTERNAL CLOCK

FREQUENCY

1

Enabled

225kHz

Floating

0

Enabled

Power-Down

1.5MHz

N/A

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