Electronic Components Datasheet Search |
|
MAX5157AEEE Datasheet(PDF) 10 Page - Maxim Integrated Products |
|
MAX5157AEEE Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 16 page Power-Down Mode The MAX5156/MAX5157 feature a software-program- mable shutdown mode that reduces the typical supply current to 2µA. The two DACs can be shut down inde- pendently or simultaneously by using the appropriate programming word. For instance, enter shutdown mode (for both DACs) by writing an input control word of 111XXXXXXXXXXXX0 (Table 1). In shutdown mode, the reference inputs and amplifier outputs become high impedance, and the serial interface remains active. Data in the input registers is saved, allowing the MAX5156/MAX5157 to recall the output state prior to entering shutdown when returning to normal mode. Exit shutdown by recalling the previous condition or by updating the DAC with new information. When returning to normal operation (exiting shutdown), wait 20µs for output stabilization. Serial Interface The MAX5156/MAX5157 3-wire serial interface is com- patible with both Microwire (Figure 2) and SPI/QSPI (Figure 3) serial-interface standards. The 16-bit serial input word consists of an address bit, two control bits, 12 bits of data (MSB to LSB), and one sub bit as shown in Figure 4. The address and control bits determine the response of the MAX5156/MAX5157, as outlined in Table 1. Low-Power, Dual, 12-Bit Voltage-Output DACs with Configurable Outputs 10 ______________________________________________________________________________________ D11................D0 MSB LSB FUNCTION A0 C1 C0 0 0 1 12 bits of DAC data Load input register A; DAC register is unchanged. 0 1 1 12 bits of DAC data Load all DAC registers from the shift register (start up both DACs with new data). 1 1 0 12 bits of DAC data Load input register B; all DAC registers are updated. 0 1 0 12 bits of DAC data Load input register A; all DAC registers are updated. 1 0 1 12 bits of DAC data Load input register B; DAC register is unchanged. 0 0 0 1 1 0 x xxxxxxxx Shut down DAC A when PDL = 1. 0 0 0 1 0 1 x xxxxxxxx Update DAC register B from input register B (start up DAC B with data previously stored in input register B). 0 0 0 0 0 1 x xxxxxxxx Update DAC register A from input register A (start up DAC A with data previously stored in input register A). 1 1 1 xxxxxxxxxxxx Shut down both DACs if PDL = 1. 1 0 0 xxxxxxxxxxxx Update both DAC registers from their respective input registers (start up both DACs with data previously stored in the input registers). 0 0 0 1 1 1 x xxxxxxxx Shut down DAC B when PDL = 1. 0 0 0 0 1 0 x xxxxxxxx UPO goes low (default). 0 0 0 0 1 1 x xxxxxxxx UPO goes high. 0 0 0 1 0 0 1 xxxxxxxx Mode 1, DOUT clocked out on SCLK’s rising edge. 0 0 0 1 0 0 0 xxxxxxxx Mode 0, DOUT clocked out on SCLK’s falling edge (default). 0 0 0 0 0 0 x xxxxxxxx No operation (NOP). Table 1. Serial-Interface Programming Commands “x” = don’t care Note: D11, D10, D9, and D8 become control bits when A0, C1, and C0 = 0. S0 is a sub bit, always zero. S0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16-BIT SERIAL WORD |
Similar Part No. - MAX5157AEEE |
|
Similar Description - MAX5157AEEE |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |