ADC101S101 Datasheet | National Semiconductor

Description The ADC121S101, ADC101S101, and ADC081S101 are low power, monolithic CMOS 12-, 10- and 8-bit analog-to-digital converters that operate at 1 MSPS. Each device is based on a successive approximation register architecture with internal track-and-hold. The serial interface is patible with several standards, such as SPI™, QSPI™, MICROWIRE™, and many mon DSP serial interfaces. The ADC121S101/101S101/081S101 uses the supply voltage as a reference. This enables the devices to operate with a full-scale input range of 0 to VDD. The conversion rate is determined from the serial clock (SCLK) speed. These converters offer a shutdown mode, which can be used to trade throughput for power consumption. The ADC121S101/ 101S101/081S101 is operated with a single supply that can range from +2.7V to +5.25V. Normal power consumption during continuous conversion, using a +3V or +5V supply, is 2 m W or 10 m W respectively. The power down feature , which is enabled by a chip select (CS) pin, reduces the power consumption to under 5 µW using a +5V supply. All three converters are available in a 6-lead SOT-23 package, which provides an extremely small footprint for applications where space is a critical consideration. These products are designed for operation over the automotive/extended industrial temperature range of - 40˚C to +125˚C. Features n n n n n Variable power management Packaged in 6-lead SOT-23 Power supply used as reference Single +2.7V to +5.25V supply operation SPI™/QSPI™/MICROWIRE™/DSP patible Key Specifications n n n n n Resolution with no Missing Codes Conversion Rate DNL INL Power Consumption - 3V Supply - 5V Supply 12/10/8 bits 1 MSPS +0.5, -0.3 LSB (typ) ± 0.4 LSB (typ) 2 m W (typ) 10 m W (typ) Applications n n n n n n Automotive Navigation FA/ATM Equipment Portable Systems Medical Instruments Mobile munications Instrumentation and Control Systems Connection Diagram MICROWIRE™ is a trademark of National Semiconductor Corporation. TRI-STATE ® is a...