ADC122S021 Datasheet PDF - TI

●The ADC122S021 is a low-power, two-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 ADC122S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals at inputs IN1 and IN2.

●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 ADC122S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply.

●The ADC122S021 is packaged in an 8-lead VSSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.

● Specified over a Range of Sample Rates.

● Two Input Channels

● Variable Power Management

● Single Power Supply with 2.7V - 5.25V Range

●## Key Specifications

● DNL +0.4 / −0.2 LSB (typ)

● INL ± 0.35 LSB (typ)

● SNR 72.0 dB (typ)

● Power Consumption 2.2 mW (typ)

● 5V Supply 7.9 mW (typ)

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