The AD7835ASZ is a monolithic 14-bit Digital-to-analog Converter (DAC) with output voltages in the range ±8.192V with a maximum span of 14V. Data is loaded in 16-bit format from the external serial bus, MSB first after two leading 0s, into one via DIN, SCLK and FSYNC. It can accept either 14-bit parallel loading or double-byte loading, where right-justified data is loaded in one 8-bit byte and one 6-bit byte. Data is loaded from the external bus into one of the input latches under the control of the WR, CS, BYSHF and DAC channel address pins A0 to A2. In addition, for each device, the asynchronous CLR input can be used to set all signal outputs, VOUT1 to VOUT4, to the user-defined voltage level on the device sense ground pin DSG. On power-on, before the power supplies have stabilized, internal circuitry holds the DAC output voltage levels to within ±2V of the DSG potential. As the supplies stabilize, the DAC output levels move to the exact DSG potential.
- Serial input device
- Power-on reset function
- Maximum/minimum output voltage range of ±8.192V
- Maximum output voltage span of 14V
- Common voltage reference inputs
- User-assigned device addressing
- Clear function to user-defined voltage
自动化与过程控制, 测试与测量, 传感与仪器
