ADC081S021 Datasheet | National Semiconductor

Description The ADC081S021 is a low-power, single channel CMOS 8-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 ADC081S021 is fully specified over a sample rate range of 50 ksps to 200 ksps. The converter is based upon a successiveapproximation register architecture with an internal trackand-hold circuit. The output serial data is straight binary, and is patible with several standards, such as SPI™, QSPI™, MICROWIRE, and many mon DSP serial interfaces. The ADC081S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3.6V or +5.25V supply is 1.3 m W and 7.7 m W, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a +5.25V supply. The ADC081S021 is packaged in 6-lead LLP and SOT-23 packages. Operation over the industrial temperature range of - 40˚C to +85˚C is guaranteed. Features n n n n n Specified over a range of sample rates. 6-lead LLP and SOT-23 packages Variable power management Single power supply with 2.7V - 5.25V range SPI™/QSPI™/MICROWIRE/DSP patible Key Specifications n n n n DNL INL SNR Power Consumption - 3.6V Supply - 5.25V Supply +0.04/-0.03 LSB (typ) +0.04/-0.03 LSB (typ) 49.6 d B (typ) 1.3 m W (typ) 7.7 m W (typ) Applications n Portable Systems n Remote Data Acquisition n Instrumentation and Control Systems Pin-patible Alternatives by Resolution and Speed All devices are fully pin and function patible. Resolution 50 to 200 ksps 12-bit 10-bit 8-bit ADC121S021 ADC101S021 ADC081S021 Specified for Sample Rate Range of: 200 to 500 ksps ADC121S051 ADC101S051 ADC081S051 500 ksps to 1 Msps ADC121S101 ADC101S101 ADC081S101 Connection Diagram Ordering Information Order Code ADC081S021CISD ADC081S021CISDX ADC081S021CIMF ADC081S021CIMFX ADC081S021EVAL TRI-STATE ® is a trademark of National Semiconductor Corporation QSPI™ and SPI™ are trademarks of...