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TI SoC integrates analog, digital cores

Posted: 24 Mar 2004 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ti? data acquisition soc? burr-brown? msc1200?

Texas Instruments Inc. (TI) has introduced a low-noise data acquisition SoC from its Burr-Brown product line that integrates a 24-bit delta-sigma analog-to-digital converter (ADC), an enhanced 8051 processor core, flash memory, internal oscillator, and a variety of high-performance peripherals.

"The MSC1200 offers customers a complete, low-cost mixed-signal device which successfully extends TI's innovative MicroSystem product line," said Robert Schreiber, product line manager for microsystem data converter products. "The integration of the analog and digital cores allows users to customize the device to meet specific requirements, and the low price makes the MSC1200 attractive in many new applications."

Suitable for applications in industrial process control, portable instrumentation, and test and measurement, the device operates on a single 2.7V to 5.25V supply and has a 3mW power supply.

The enhanced 8051 core executes three times faster, with lower power, than the standard 8051 core. The MSC1200 family offers two flash memory sizes with pin and function compatibility, allowing the customer to freely migrate between devices as their code requirements change.

The noise performance of the ADC is 75nV. According to TI, this is better than most standalone ADCs on the market and significantly better than any comparable mixed-signal device. The ADC also has a 1Ksps sampling rate and 3mW power consumption.

The analog features consist of a 24-bit delta sigma ADC, a flexible eight-channel multiplexer, internal oscillator, PLL, burn-out detect, selectable buffered input, offset DAC, programmable gains of up to 128, selectable data output rate, programmable single-cycle settling filter, precision on-chip voltage reference or external differential voltage reference, on-chip temperature sensor, on-chip calibration, low voltage detect, and brown-out reset.

Aside from the 8051 microcontroller core with dual data pointers, the digital features include two flash memory size options (4K or 8K), 128 bytes of SRAM, four I/O ports, a 32-bit accumulator/shifter, UART, two timers/counters, basic I?C interface, basic SPI interface, and a watchdog timer.

Rated for operation between the -40C to 85C temperature range, the MSC1200 is packaged in a TQFP-48 and is priced depending on the two flash memory size options. The MSC1200Y2 (4K) is available for $5.95 and the MSC1200Y3 (8K) is priced at $6.45.





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