JAJSES9 February 2018 DAC8771
PRODUCTION DATA.
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
SCLIM[1:0] | HTEN | OTEN | SRCLK_RATE[3:0] | ||||
R/W | R/W | R/W | R/W | ||||
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
SR_STEP[2:0] | SREN | RANGE[3:0] | |||||
R/W | R/W | R/W |
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
15:14 | SCLIM[1:0] | R/W | 00 | Voltage output short circuit limit
00 - 22 mA (default). Actual value will be between the minimum and maximum values specified in . 01 - 10 mA. Actual value will be between the minimum and maximum values specified in . 10 - 26 mA. Actual value will be between the minimum and maximum values specified in . 11 - 31 mA. Actual value will be between the minimum and maximum values specified in . |
13 | HTEN | R/W | 0 | Enable HART - When set, this bit enables HART, disabled by default |
12 | OTEN | R/W | 0 | Output Enabled - When set, this bit enables DAC (Voltage or Current) outputs, disabled by default |
11:8 | SRCLK_RATE[3:0] | R/W | 0000 | Slew Clock Rate
0000 - DAC updates at 258,065 Hz (default) 0001 - DAC updates at 200,000 Hz 0010 - DAC updates at 153,845 Hz 0011 - DAC updates at 131,145 Hz 0100 - DAC updates at 115,940 Hz 0101 - DAC updates at 69,565 Hz 0110 - DAC updates at 37,560 Hz 0111 - DAC updates at 25,805 Hz 1000 - DAC updates at 20,150 Hz 1001 - DAC updates at 16,030 Hz 1010 - DAC updates at 10,295 Hz 1011 - DAC updates at 8,280 Hz 1100 - DAC updates at 6,900 Hz 1101 - DAC updates at 5,530 Hz 1110 - DAC updates at 4,240 Hz 1111 - DAC updates at 3,300 Hz |
7:5 | SR_STEP[2:0] | R/W | 000 | Slew Rate Step Size
000 - 1 LSB (default) 001 - 2 LSB 010 - 4 LSB 011 - 8 LSB 100 - 16 LSB 101 - 32 LSB 110 - 64 LSB 111 - 128 LSB |
4 | SREN | R/W | 0 | Slew Rate Enabled - When set, this bit enables slew rate feature, disabled by default |
3:0 | RANGE[3:0] | R/W | 0000 | Range, Please note that upon changing the range, the DAC output changes based on CLSLA (Address 0x03)
0000 - Voltage output 0 to +5 V (default) 0001 - Voltage output 0 to +10 V 0010 - Voltage output ±5 V 0011 - Voltage output ±10 V 0100 - Current output 3.5 mA to 23.5 mA 0101 - Current output 0 to 20 mA 0110 - Current output 0 to 24 mA 0111 - Current output ±24 mA 1000 - Voltage output 0 to +6 V 1001 - Voltage output 0 to +12 V 1010 - Voltage output ±6 V 1011 - Voltage output ±12 V 11xx - Current output 4 mA to 20 mA |