MAX5548 Datasheet, PDF (13/15 Pages) Maxim Integrated Products – Dual, 8-Bit, Programmable, 30mA High-Output-Current DAC

Dual, 8-Bit, Programmable, 30mA
High-Output-Current DAC
Table 4. Command Summary
SERIAL DATA INPUT
C5 C4 C3 C2 C1 C0 D7–D0, S1 AND S0
000000
XXXXXXXXXX
000001
8-bit DAC data
000010
000011
8-bit DAC data
8-bit DAC data
000100
8-bit DAC data
000101
8-bit DAC data
000110
000111
001001
001010
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
010101
101101
101110
101111
110000
110001
110010
110011
110100
110101
8-bit DAC data
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
FUNCTIONS
No operation.
Load DAC data to both DAC registers and both input registers from the
shift register.
Load DAC register A and input register A from the shift register.
Load DAC register B and input register B from the shift register.
Load both channel input registers from the shift register; both DAC
registers are unchanged.
Load input register A from the shift register; DAC register A is
unchanged.
Load input register B from the shift register; DAC register B is
unchanged.
Update both DAC registers from their corresponding input registers.
Update DAC register A from input register A.
Update DAC register B from input register B.
Internal reference mode.
External reference mode (default mode at power-up).
Shut down both DACs.
Shut down DACA.
Shut down DACB.
DACA 1mA–2mA full-scale current range mode (default mode at
power-up)
DACA 1.5mA–3mA full-scale current range mode.
DACA 2.5mA–5mA full-scale current range mode.
DACA 4.5mA–9mA full-scale current range mode.
DACA 8mA–16mA full-scale current range mode.
DACA 15mA–30mA full-scale current range mode.
Power up both channels of the DACs.
Power up DACA.
Power up DACB.
DACB 1mA–2mA full-scale current range mode (default mode at
power-up)
DACB 1.5mA–3mA full-scale current range mode.
DACB 2.5mA–5mA full-scale current range mode.
DACB 4.5mA–9mA full-scale current range mode.
DACB 8mA–16mA full-scale current range mode.
DACB 15mA–30mA full-scale current range mode.
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