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AD5758 Datasheet(PDF) 57 Page - Analog Devices |
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AD5758 Datasheet(HTML) 57 Page - Analog Devices |
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57 / 72 page ![]() Data Sheet AD5758 Rev. 0 | Page 57 of 72 Bits Bit Name Description Reset Access [12:9] SR_CLOCK Slew rate clock. Slew rate clock defines the rate at which the digital slew is updated. 0x6 R/W 0000: 240 kHz. 0001: 200 kHz. 0010: 150 kHz. 0011: 128 kHz. 0100: 64 kHz. 0101: 32 kHz. 0110: 16 kHz (default). 0111: 8 kHz. 1000: 4 kHz. 1001: 2 kHz. 1010: 1 kHz. 1011: 512 Hz. 1100: 256 Hz. 1101: 128Hz. 1110: 64 Hz. 1111: 16 Hz. 8 SR_EN Enable slew rate control. 0x0 R/W 0: disable (default). 1: enable. 7 RSET_EXT_EN Enable external current setting resistor. 0x0 R/W 0: select internal RSET resistor (default). 1: select external RSET resistor. 6 OUT_EN Enable VIOUT. 0x0 R/W 0: disable VIOUT output (default). 1: enable VIOUT output. 5 INT_EN Enable internal buffers. 0x0 R/W 0: disable (default). 1: enable. Setting this bit powers up the DAC and internal amplifiers. Setting this bit does not enable the output. It is recommended to set this bit and allow a >200 μs delay before enabling the output. This delay results in a reduced output enable glitch. 4 OVRNG_EN Enable 20% voltage overrange. 0x0 R/W 0: disable (default). 1: enable. [3:0] Range Select output range. Note that changing the contents of the range bits initiates an internal calibration memory refresh and, therefore, a subsequent SPI write must not be performed until the CAL_MEM_UNREFRESHED bit in the DIGITAL_DIAG_RESULTS register returns to 0. Writes to invalid range codes are ignored. 0x0 R/W 0000: 0 V to 5 V voltage range (default). 0001: 0 V to 10 V voltage range. 0010: ±5 V voltage range. 0011: ±10 V voltage range. 1000: 0 mA to 20 mA current range. 1001: 0 mA to 24 mA current range. 1010: 4 mA to 20 mA current range. 1011: ±20 mA current range. 1100: ±24 mA current range. 1101: −1 mA to +22 mA current range. |
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