Quad voltage-output DAC provides four 12-bit buffered analog outputs with an I2C-compatible two-wire serial interface. The device operates from a 2.7 V to 5.5 V supply and supports a separate 1.62 V to 5.5 V logic supply. A gain-select pin sets the full-scale output span to either 0 V to VREF or 0 V to 2 × VREF. Power-on reset can initialize the DAC outputs to zero scale or midscale, and per-channel power-down reduces supply current to microamp levels. The device is specified over the −40°C to +105°C temperature range in 16-lead LFCSP and TSSOP package options.
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| DAC resolution | 12bit |
| Number of DAC channels | 4 |
| Interface | I2C-compatible two-wire serial |
| Maximum serial clock frequency | 400kHz |
| Analog supply voltage | 2.7 to 5.5V |
| Logic supply voltage | 1.62 to 5.5V |
| Reference input range, gain = 1 | 1 to VDDV |
| Reference input range, gain = 2 | 1 to VDD/2V |
| Output voltage range, gain = 1 | 0 to VREFV |
| Output voltage range, gain = 2 | 0 to 2 × VREFV |
| Relative accuracy, A grade | ±2 maxLSB |
| Relative accuracy, B grade | ±1 maxLSB |
| Differential nonlinearity | ±1 maxLSB |
| Offset error, B grade | ±1.5 maxmV |
| Gain error, B grade | ±0.1 max% FSR |
| Normal-mode supply current | 0.7 maxmA |
| Power-down supply current | 4 max to +85°C; 6 max to +105°CµA |
| Output voltage settling time | 7 maxµs |
| Operating temperature range | -40 to +105°C |
| Package options | 16-lead LFCSP, 16-lead TSSOP |
These are design resources that include the Analog Devices AD5694
Evaluation board user guide for the AD569xR and AD569x series quad-channel 16-bit/12-bit voltage output DACs featuring I2C interface and on-board voltage references.
