ADC122S021

If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Analog Supply Voltage             V_A −0.3V to 6.5V
Voltage on Any Pin to GND     −0.3V to V_A +0.3V
Input Current at Any Pin (Note 3)          ±10 mA
Package Input Current (Note 3)             ±20 mA
Power Consumption at T_A = 25    See (Note 4)
ESD Susceptibility (Note 5)
Human Body Model                                    2500V
Machine Model                                             250V

Junction Temperature                               +150
Storage Temperature                 −65 to +150

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 W using a +3V supply, or 0.32 W using a +5V supply.

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