AD7801BRUZ-REEL7

AD7801 is a parallel input, voltage output 8Bit DAC. Its on-chip precision output buffer allows the DAC output to swing rail to rail. It has a parallel microprocessor and DSP compatible interface with high speed registers and double buffered interface logic. Data is loaded to the input register on the rising edge of CS (active high) or WR (active high). Reference selection for the AD7801 can be either an internal reference derived from the VDD or an external reference applied at the REFIN pin. The output of the DAC can be cleared by using the asynchronous CLR (active high) input. The low power consumption of this part makes it ideally suited to portable battery operated equipment. The power consumption is less than 5mW at 3.3V, reducing to less than 3µW in power-down mode. Application includes portable battery powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators.

• Internal and external reference capability
• DAC power-down function, parallel interface
• On-chip output buffer rail-to-rail operation
• Maximum relative accuracy is ±1LSB (VDD = +2.7 to +5.5V, CL = 100pF, RL = 10KV)
• Maximum differential nonlinearity is ±1LSB (guaranteed monotonic)
• Typical zero-code error at +25°C is 3LSB (all zeros loaded to DAC register)
• Typical full-scale error is -0.75LSB (all ones loaded to DAC register)
• Typical gain error is ±1% FSR (VDD = +2.7 to +5.5V, CL = 100pF, RL = 10KV)
• 7.5V/µs typical slew rate (VDD = +2.7 to +5.5V, CL = 100pF, RL = 10KV)
• 20 pin TSSOP package, operating temperature range from -40°C to +105°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party