The DAC7621 is a 12-bit digital-to-analog converter (DAC) with guaranteed 12-bit monotonicity performance over the industrial temperature range. It requires a single +5V supply and contains an input register, latch, 2.435V reference, DAC, and high speed rail-to-rail output amplifier. For a full-scale step, the output will settle to 1 LSB within 7µs. The device consumes 2.5mW (0.5mA at 5V).
The parallel interface is compatible with a wide variety of microcontrollers. The DAC7621 accepts a 12-bit parallel word, has a double-buffered input logic structure and provides data readback. In addition, two control pins provide a chip select (_CS) function and asynchronous clear (CLR) input. The _CLR input can be used to ensure that the DAC7621 output is 0V on power-up or as required by the application.
The DAC7621 is available in a 20-lead SSOP package and is fully specified over the industrial temperature range of –40°C to +85°C.
| Resolution (Bits) | 12 |
| Number of DAC channels | 1 |
| Interface type | Parallel |
| Output type | Buffered Voltage |
| Settling time (µs) | 10 |
| Reference type | Int |
| Architecture | R-2R |
| Rating | Catalog |
| Output range (max) (mA/V) | 5 |
| Output range (min) (mA/V) | 0 |
| Sample/update rate (Msps) | 0.143 |
| Power consumption (typ) (mW) | 2.5 |
| Operating temperature range (°C) | -40 to 85 |
| SSOP (DB) | 20 | 56.16 mm² 7.2 x 7.8 |
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