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TI DA microsystems offer 'best performance, value'

Posted: 01 Mar 2005 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ti? data acquisition microsystem? data acquisition? burr-brown?

Texas Instruments Inc. (TI) introduced a pair of low-noise, low-cost data acquisition microsystems in tiny 6-by-6mm QFN packages from its Burr-Brown product line. According to Robert Schreiber, product line manager for TI's microsystem data converter products, both the MSC1201 and MSC1202 raise the bar for mixed-signal devices by providing a complete data acquisition system in a 6-by-6mm package with the industry's best performance and value.

"The flexibility of a pin-compatible resolution path along with advanced packaging and integration will be attractive to a wide range of high-performance, space-constrained applications," Schreiber added.

The MSC1201 (24bit) and MSC1202 (16bit) devices integrate a low-noise delta-sigma ADC, an enhanced 8051 processor core, 4KB or 8KB of flash memory, 8bit current DAC, on-chip oscillator, voltage reference and a variety of high-performance peripherals.

The enhanced 8051 core executes up to three times faster, with lower power, than the standard 8051 core. The MSC1201 and MSC1202 offers two flash memory sizes with pin and function compatibility, thus allowing the customer to freely migrate between devices as their code requirements change. Additional digital features include 256 bytes of SRAM, four I/O ports, a 32bit accumulator/shifter, UART, two timers/counters, basic I?C interface, basic SPI interface and a watchdog timer.

In addition, the noise performance of the MSC1201's ADC is 75nV, better than most standalone ADCs on the market and significantly better than any comparable mixed-signal device, added TI. The MSC1201's ADC also has a 1kSPS sampling rate with 3mW of power consumption. Meanwhile, the MSC1202's ADC offers 16bit noise free performance at low data rates and can run faster than 2kSPS.

The analog features consist of a 24bit delta-sigma ADC (MSC1201) or 16bit delta-sigma ADC (MSC1202), a flexible six-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.

The MSC1201 and MSC1202 chips are housed in QFN-36 packages, and for 1,000-piece orders, have a suggested resale price of $5.60 (MSC1201Y2, 4K), $5.95 (MSC1201Y3, 8K), $4.60 (MSC1202Y2, 4K) and $4.95 (MSC1202Y3, 8K).

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