The DAC1006, DAC1007, and DAC1008 are advanced CMOS-Si-Cr 10-, 9-, and 8-bit accurate multiplying DACs designed to interface directly with the 8080, 8048, 8085, Z-80, and other popular microprocessors. These DACs appear as a memory location or an I/O port to the microprocessor, and no interfacing logic is needed. When combined with an external amplifier and voltage reference, these devices can be used as standard D-A converters and are particularly attractive for multiplying applications (such as digitally controlled gain blocks) because their linearity error is essentially independent of the voltage reference. They are also attractive in audio signal processing equipment as audio gain controls or programmable attenuators, combining high-quality audio signal processing with digitally based systems under microprocessor control. All of these DACs are double-buffered and can load all 10 bits or two 8-bit bytes, with the data format being left justified. The analog section of these DACs is essentially the same as that of the DAC1020. The DAC1006 series are the 10-bit members of a family of microprocessor-compatible DACs (MICRO-DACs). For applications requiring other resolutions, the DAC0830 series (8 bits) and the DAC1208 and DAC1230 (12 bits) are available alternatives.
The DAC1006/7/8 series are advanced CMOS/Si-Cr multiplying D/A converters designed to interface directly with popular microprocessors such as the 8080, 8048, and 8085. These devices appear as a memory location or I/O port, requiring no additional interfacing logic. They are available in 10-bit, 9-bit, and 8-bit resolutions and support double-buffered, single-buffered, or flow-through digital data inputs.
| Resolution | 10, 9, and 8 bits |
|---|---|
| Linearity Error | 0.05% to 0.2% of FSR |
| Gain Tempco | -0.0003% of FS/°C |
| Power Dissipation | 20 mW |
| Supply Voltage | 5 to 15 Vdc |
| Current Settling Time | 500 ns |
The absolute maximum rating for the supply voltage (Vcc) is 17 V.
The current settling time is typically 500 ns.
The DAC1008 provides a resolution of 8 bits.