36.18 DAC
VDD = 3V, unless stated otherwise.
Accuracy characteristics calculated based on 5% to 95% range of the DAC.
| Symbol | Description | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| VDD | Supply voltage(1) | 1.8 | 3 | 5.5 | V |
| RLoad | Resistive external load | 5 | - | - | kΩ |
| CLoad | Capacitive external load | - | - | 30 | pF |
| VOUT | Output voltage range | 0.2 | - | VDD-0.2 | V |
| IOUT | Output sink/source | - | 1 | - | mA |
Note: 1. The supply voltage must meet the
VDD specification for the VREF level used as DAC
reference.
| Symbol | Description | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| fDAC | Maximum conversion rate | 0.55V ≤ VREF ≤ 2.5V | - | 350 | - | ksps |
| VREF = 4.3V | - | 270 | - | ksps |
| Symbol | Description | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|---|
| RES | Resolution | - | 8 | bits | ||
| INL | Integral nonlinearity | 0.55V ≤ VREF ≤ 4.3V | -1.2 | 0.3 | 1.2 | LSb |
| DNL | Differential nonlinearity | 0.55V ≤ VREF ≤ 4.3V | -1 | 0.25 | 1 | LSb |
| EOFF(1) | Offset error | 0.55V ≤ VREF ≤ 1.5V | -25 | -3 | 20 | mV |
| VREF = 2.5V | -30 | -6 | 10 | |||
| VREF = 4.3V | -40 | -10 | 0 | |||
| EGAIN(2) | Gain error | VREF = 1.1V, VDD = 3.0V, T = 25°C | - | ±1 | - | LSb |
| 0.55V ≤ VREF ≤ 4.3V | -10 | -1 | 10 |
Note:
- Offset including the DAC output buffer offset, this measured at DAC output pin.
- VREF accuracy is included in the Gain accuracy specification.
- These values are based on characterization and not covered by production test limits.