LTC2756/2758 are 18-bit single/dual channel D/A converters with ±1LSB INL and DNL errors, high-precision DC output characteristics with guaranteed monotonicity over temperature range of -40°C to 85°C. Integrated precision resistors support reference voltage inversion, gain and offset adjustment, bipolar level shift, eliminating expensive external precision resistors and gain stages. 2.7V to 5.5V single-supply operation, support 3-wire SPI interface to read all registers.
The LTC2756 and LTC2758 are 18-bit precision DACs that offer maximum +1LSB INL and DNL over temperature. They feature fast settling time, low glitch impulse, and integrated precision resistors for reference inversion, gain, and offset adjustment without external components.
These devices utilize a current output R-2R or 4-quadrant multiplying DAC architecture with a 3-wire bidirectional serial SPI interface that supports readback of internal registers. They operate on a single supply from 2.7V to 5.5V and are available in LQFP and SSOP packages.
| Resolution | 18-Bit |
|---|---|
| INL Error | +1LSB Max |
| Settling Time (18-bit) | 2.1us |
| Glitch Impulse (3V) | 0.4nsec |
| Supply Voltage Range | 2.7V to 5.5V |
| Package Type (LTC2758) | 48-Pin LQFP |
The maximum +1LSB INL and DNL are guaranteed over temperature.
Yes, the serial interface enables readback of all internal registers.