RS1461XH

The RS1461 is a low power, monolithic CMOS 12-bit analog-to-digital converter that operates at 1 MSPS. It is based on a successive approximation register architecture with internal track-and-hold. The serial interface is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces. It uses the supply voltage as a reference, enabling the device to operate with a full-scale input range of 0 to VDD. The conversion rate is determined from the serial clock (SCLK) speed. This converter offers a shutdown mode, which can be used to trade throughput for power consumption. It 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 4.5mW or 11mW respectively. The power-down feature, which is enabled by a chip select (CS) pin, reduces the power consumption to under 5μW using a 5V supply. This converter is available in a 6-pin SOT-23 package, which provides an extremely small footprint for applications where space is a critical consideration. This product is designed for operation over the automotive and extended industrial temperature range of -40°C to 125°C.

Applications

• Automotive Navigation
• FA or ATM Equipment
• Portable Systems
• Medical Instruments
• Mobile Communications
• Instrumentation and Control Systems

Key features

• Variable Power Management
• Packaged in SOT23-6
• Power Supply Used as Reference
• Single 2.7V to 5.25V Supply Operation
• Compatible With SPI, QSPI, MICROWIRE, and DSP
• Key Specifications:
• Resolution with No Missing Codes
• Conversion Rate: 1 MSPS
• DNL: 0.6, -0.3 LSB (Typical)
• INL: ±0.6 LSB (Typical)
• Power Consumption:
• 3V Supply: 4.5mW (Typical)
• 5V Supply: 11mW (Typical)