TI’s new data acquisition system delivers up to 75 percent power, space and cost savings
Texas Instruments has introduced the 100-kSPS ADS8201, a complete on-chip data acquisition system (DAS) that draws only 600 uA of supply current at 2.2 V, resulting in up to 75 percent power savings over discrete implementations. The ADS8201 offers customers system-processing capability by integrating a complete analog signal chain of four chips into one.
This level of integration provides greater design flexibility and reduces space, cost, power consumption and design time in portable communications and medical applications, as well as transducer interfaces, and GPS-based and sensor data acquisition systems.
Key features and benefits:
· The ADS8201 integrates a 12-bit, capacitor-based, successive approximate register (SAR) analog-to-digital converter (ADC); a high-performance continuous-time programmable gain amplifier (PGA); and a fully automatic scan, 8-to-1 multiplexer (mux) with breakout to allow for system flexibility.
· High-impedance PGA and channel mapping allow for direct interface with a wide variety of sensors and for user-configurable gain per channel.
· A high-speed, wide-voltage serial interface simplifies serial port design.
· Single-ended and differential-ended inputs allow a wide variety of interface options.
· An eight-deep first in first out (FIFO) permits flexible data reading while reducing overhead on the microprocessor.
· Maximize the ADS8201’s performance for portable communications, industrial and medical applications using TI’s low-noise, high-precision OPA376, OPA364 and OPA340, operational amplifiers, and the low-power REF3020 voltage reference.
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