The ADC124S051 is a low-power, four-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 ADC124S051 is fully specified over a sample rate range of 200 ksps to
500 ksps. The converter is based on a successive-approximation register architecture with an
internal track-and-hold circuit. It can be configured to accept up to four input signals at inputs
IN1 through IN4.
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 ADC124S051 operates with a single supply that can range from +2.7V to +5.25V. Normal
power consumption using a +3V or +5V supply is 3.0 mW and 10.0 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
The ADC124S051 is packaged in a 10-lead VSSOP package. Operation over the industrial
temperature range of −40°C to +85°C is ensured.
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