The ADC121S101 is a low-power, single-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC121S101 is fully specified over a sample rate range of 500 ksps to 1 Msps. The converter is based upon a successive-approximation register architecture with an internal track-and-hold circuit.
The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
The ADC121S101 operates with a single supply with a range from 2.7 V to 5.25 V. Normal power consumption using a 3 V or 5 V supply is 2 mW and 10 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a 5-V supply.
The ADC121S101 is packaged in 6-pin WSON and SOT-23 packages. Operation over the temperature range of –40°C to 125°C is specified.
| Status | ACTIVE |
| SubFamily | Precision ADCs (<=10MSPS) |
| Resolution | 12 |
| Sample Rate | 1 |
| Number of input channels | 1 |
| INL | 1 |
| SNR | 72.5 |
| SFDR | |
| Power consumption | 2 |
| Interface | Microwire (Serial I/O)^QSPI^SPI |
| Architecture | SAR |
| Operating temperature range | -40 to 125 |
| Rating | Automotive |
| Package Group | SOT-23|6 |
| Package size: mm2:W x L (PKG) | [pf]6SOT-23[/pf]: 8 mm2: 2.8 x 2.9 (SOT-23|6) |
| Approx. price | 2.27 | 1ku |
| Analog input BW | 11 |