0
ACTIVE
Resolution (Bits) |
12 |
Sample rate (max) (ksps) |
1000 |
Number of input channels |
1 |
Interface type |
Microwire (Serial I/O), SPI |
Architecture |
SAR |
Input type |
Single-ended |
Rating |
Automotive |
Reference mode |
Supply |
Input voltage range (max) (V) |
5.25 |
Input voltage range (min) (V) |
0 |
Features |
Small Size |
Operating temperature range (°C) |
-40 to 125 |
Power consumption (typ) (mW) |
2 |
Analog supply voltage (min) (V) |
2.7 |
Analog supply voltage (max) (V) |
5.25 |
SNR (dB) |
72.5 |
Digital supply (min) (V) |
2.7 |
Digital supply (max) (V) |
5.25 |
SOT-23 (DBV)-6-8.12 mm² 2.9 x 2.8
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.
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