SWRS194H January 2018 – March 2021
PRODUCTION DATA
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
General Parameters | ||||||
Resolution | 8 | Bits | ||||
VDDS | Supply voltage | Any load, any VREF, pre-charge OFF, DAC charge-pump ON | 1.8 | 3.8 | V | |
External Load(4), any VREF, pre-charge OFF, DAC charge-pump OFF | 2.0 | 3.8 | ||||
Any load, VREF = DCOUPL, pre-charge ON | 2.6 | 3.8 | ||||
FDAC | Clock frequency | Buffer ON (recommended for external load) | 16 | 250 | kHz | |
Buffer OFF (internal load) | 16 | 1000 | ||||
Voltage output settling time | VREF = VDDS, buffer OFF, internal load | 13 | 1 / FDAC | |||
VREF = VDDS, buffer ON, external capacitive load = 20 pF(3) | 13.8 | |||||
External capacitive load | 20 | 200 | pF | |||
External resistive load | 10 | MΩ | ||||
Short circuit current | 400 | µA | ||||
ZMAX | Max output impedance Vref = VDDS, buffer ON, CLK 250 kHz | VDDS = 3.8 V, DAC charge-pump OFF | 50.8 | kΩ | ||
VDDS = 3.0 V, DAC charge-pump ON | 51.7 | |||||
VDDS = 3.0 V, DAC charge-pump OFF | 53.2 | |||||
VDDS = 2.0 V, DAC charge-pump ON | 48.7 | |||||
VDDS = 2.0 V, DAC charge-pump OFF | 70.2 | |||||
VDDS = 1.8 V, DAC charge-pump ON | 46.3 | |||||
VDDS = 1.8 V, DAC charge-pump OFF | 88.9 | |||||
Internal Load - Continuous Time Comparator / Low Power Clocked Comparator | ||||||
DNL | Differential nonlinearity | VREF = VDDS, load = Continuous Time Comparator or Low Power Clocked Comparator FDAC = 250 kHz |
±1 | LSB(1) | ||
Differential nonlinearity | VREF = VDDS, load = Continuous Time Comparator or Low Power Clocked Comparator FDAC = 16 kHz |
±1.2 | ||||
Offset error(2)
Load = Continuous Time Comparator |
VREF = VDDS = 3.8 V | ±0.64 | LSB(1) | |||
VREF = VDDS = 3.0 V | ±0.81 | |||||
VREF = VDDS = 1.8 V | ±1.27 | |||||
VREF = DCOUPL, pre-charge ON | ±3.43 | |||||
VREF = DCOUPL, pre-charge OFF | ±2.88 | |||||
VREF = ADCREF | ±2.37 | |||||
Offset error(2)
Load = Low Power Clocked Comparator |
VREF = VDDS = 3.8 V | ±0.78 | LSB(1) | |||
VREF = VDDS = 3.0 V | ±0.77 | |||||
VREF = VDDS = 1.8 V | ±3.46 | |||||
VREF = DCOUPL, pre-charge ON | ±3.44 | |||||
VREF = DCOUPL, pre-charge OFF | ±4.70 | |||||
VREF = ADCREF | ±4.11 | |||||
Max code output voltage variation(2)
Load = Continuous Time Comparator |
VREF = VDDS = 3.8 V | ±1.53 | LSB(1) | |||
VREF = VDDS = 3.0 V | ±1.71 | |||||
VREF = VDDS = 1.8 V | ±2.10 | |||||
VREF = DCOUPL, pre-charge ON | ±6.00 | |||||
VREF = DCOUPL, pre-charge OFF | ±3.85 | |||||
VREF = ADCREF | ±5.84 | |||||
Max code output voltage variation(2)
Load = Low Power Clocked Comparator |
VREF = VDDS = 3.8 V | ±2.92 | LSB(1) | |||
VREF =VDDS = 3.0 V | ±3.06 | |||||
VREF = VDDS = 1.8 V | ±3.91 | |||||
VREF = DCOUPL, pre-charge ON | ±7.84 | |||||
VREF = DCOUPL, pre-charge OFF | ±4.06 | |||||
VREF = ADCREF | ±6.94 | |||||
Output voltage range(2)
Load = Continuous Time Comparator |
VREF = VDDS = 3.8 V, code 1 | 0.03 | V | |||
VREF = VDDS = 3.8 V, code 255 | 3.62 | |||||
VREF = VDDS = 3.0 V, code 1 | 0.02 | |||||
VREF = VDDS = 3.0 V, code 255 | 2.86 | |||||
VREF = VDDS = 1.8 V, code 1 | 0.01 | |||||
VREF = VDDS = 1.8 V, code 255 | 1.71 | |||||
VREF = DCOUPL, pre-charge OFF, code 1 | 0.01 | |||||
VREF = DCOUPL, pre-charge OFF, code 255 | 1.21 | |||||
VREF = DCOUPL, pre-charge ON, code 1 | 1.27 | |||||
VREF = DCOUPL, pre-charge ON, code 255 | 2.46 | |||||
VREF = ADCREF, code 1 | 0.01 | |||||
VREF = ADCREF, code 255 | 1.41 | |||||
Output voltage range(2)
Load = Low Power Clocked Comparator |
VREF = VDDS = 3.8 V, code 1 | 0.03 | V | |||
VREF = VDDS = 3.8 V, code 255 | 3.61 | |||||
VREF = VDDS = 3.0 V, code 1 | 0.02 | |||||
VREF = VDDS = 3.0 V, code 255 | 2.85 | |||||
VREF = VDDS = 1.8 V, code 1 | 0.01 | |||||
VREF = VDDS = 1.8 V, code 255 | 1.71 | |||||
VREF = DCOUPL, pre-charge OFF, code 1 | 0.01 | |||||
VREF = DCOUPL, pre-charge OFF, code 255 | 1.21 | |||||
VREF = DCOUPL, pre-charge ON, code 1 | 1.27 | |||||
VREF = DCOUPL, pre-charge ON, code 255 | 2.46 | |||||
VREF = ADCREF, code 1 | 0.01 | |||||
VREF = ADCREF, code 255 | 1.41 | |||||
External Load (Keysight 34401A Multimeter) | ||||||
INL | Integral nonlinearity | VREF = VDDS, FDAC = 250 kHz | ±1 | LSB(1) | ||
VREF = DCOUPL, FDAC = 250 kHz | ±1 | |||||
VREF = ADCREF, FDAC = 250 kHz | ±1 | |||||
DNL | Differential nonlinearity | VREF = VDDS, FDAC = 250 kHz | ±1 | LSB(1) | ||
Offset error | VREF = VDDS = 3.8 V | ±0.40 | LSB(1) | |||
VREF = VDDS = 3.0 V | ±0.50 | |||||
VREF = VDDS = 1.8 V | ±0.75 | |||||
VREF = DCOUPL, pre-charge ON | ±1.55 | |||||
VREF = DCOUPL, pre-charge OFF | ±1.30 | |||||
VREF = ADCREF | ±1.10 | |||||
Max code output voltage variation | VREF = VDDS = 3.8 V | ±1.00 | LSB(1) | |||
VREF = VDDS = 3.0 V | ±1.00 | |||||
VREF = VDDS = 1.8 V | ±1.00 | |||||
VREF = DCOUPL, pre-charge ON | ±3.45 | |||||
VREF = DCOUPL, pre-charge OFF | ±2.10 | |||||
VREF = ADCREF | ±1.90 | |||||
Output voltage range Load = Low Power Clocked Comparator |
VREF = VDDS = 3.8 V, code 1 | 0.03 | V | |||
VREF = VDDS = 3.8 V, code 255 | 3.61 | |||||
VREF = VDDS = 3.0 V, code 1 | 0.02 | |||||
VREF = VDDS = 3.0 V, code 255 | 2.85 | |||||
VREF = VDDS = 1.8 V, code 1 | 0.02 | |||||
VREF = VDDS = 1.8 V, code 255 | 1.71 | |||||
VREF = DCOUPL, pre-charge OFF, code 1 | 0.02 | |||||
VREF = DCOUPL, pre-charge OFF, code 255 | 1.20 | |||||
VREF = DCOUPL, pre-charge ON, code 1 | 1.27 | |||||
VREF = DCOUPL, pre-charge ON, code 255 | 2.46 | |||||
VREF = ADCREF, code 1 | 0.02 | |||||
VREF = ADCREF, code 255 | 1.42 |