12-bit, 1MSPS, 4-channel, single-ended MicroPower serial I/F SAR A/D converter ADS7950
Built-in sample-and-hold function supports a wide analog power supply range of 2.7V to 5.25V. This charge redistribution SAR (Successive Approximation Register) ADC is optimized for low power consumption, making it ideal for battery-powered and isolated power applications. It is a serial device with a sample rate of 1MHz and a latency of 0. The wide I/O power supply range of 1.7V to 5.25V allows for easy direct interfacing with common CMOS digital hosts. It is possible to program two alarm levels per channel. Excellent power-down features enable reduced power consumption during operation at low conversion rates. It is available in a 30-pin TSSOP and a 24-pin QFN package.
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basic information
■Serial device with a sample rate of 1MHz ■Resolution: 12 bits ■Latency: 0 ■20MHz serial interface ■Analog power supply range: 2.7 to 5.25V ■I/O power supply range: 1.7 to 5.25V ■Two types of unipolar input ranges selectable by software: 0 to 2.5V / 0 to 5V ■Channel selection by automatic/manual mode ■Footprint compatible with 16-channel devices ■Two programmable alarm levels per channel ■TSSOP package device includes 4 GPIOs (configurable bits). QFN device has 1 GPIO. ■Standard power consumption: 14.5mW (+VA = 5V, +VBD = 3V) (at 1MSPS) ■Power-down current (1μA) ■Input bandwidth: 47MHz (at -3dB)
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Applications/Examples of results
PLC / IPC, battery-operated devices, medical measurement equipment, digital power supplies, touch screen controllers, high-speed data acquisition systems, high-speed closed-loop systems, etc.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】