AD8152 datasheet(13/32 Pages) AD

13 / 32 page

REV. A

AD8152

–13–

Table I. Address and Data Buses

Connection/Current Bit

Output Address Pins

Data Pins

0 = CONNECTION LATCHES

1 = OUTPUT CURRENT LEVEL

MSB

LSB

MSB

LSB

Table II. Connection Data and Address Programming Examples

Connection/

Data Pins

Current Bit

Output Address Pins

(Used to Select Inputs)

Comments

0 = CONNECTION

MSB

LSB

MSB

LSB

A5 A4 A3 A2 A1 A0

D5 D4 D3 D2 D1 D0

000000

Program IN00 to OUT00

000000

100001

Program IN33 to OUT00

100001

011111

Program IN31 to OUT33

111111

000000

Broadcast IN00 to All Outputs

000000

111111

Disable OUT00

100001

111111

Disable OUT33

111111

Disable All Outputs (Broadcast)

Table III. Output-Current Level Data and Address Programming Examples

Connection/

Data Pins

Current Bit

Output Address Pins

(Used to Select Inputs)

Comments

1 = CURRENT LEVEL MSB

LSB MSB

LSB

A5 A4

A3 A2 A1 A0

D2 D1 D0

000

Program OUT00 to Current—Code 00 (2 mA)

000

111

Program OUT00 to Current—Code 15 (32 mA)

000

111

Program OUT33 to Current—Code 07 (16 mA)

111

000

Broadcast Current—Code 08 to All

Outputs (18 mA)

Table IV. Basic Control Strobe Functions

RESET CS

UPD Function

XGlobal Reset. Disables all outputs and resets all output current to code 0111 (16 mA).

Disable All Control Signals. Signal matrix/currents remain the same. D5:D0 are high impedance.

XWrite Enable. Write D5:D0 data into first rank register addressed by A6:A0.

Single-Output Readback. Second rank register data for output A6:A0 appears on D5:D0.

Global Update. Copy all first rank data into second rank registers.

Transparent Write and Update. D5:D0 immediately control programming. Use

RE as gating signal.

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