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Product category: Analogue and Mixed Signal ICs
News Release from: Analog Devices | Subject: ADuC8xx MicroConverters
Edited by the Electronicstalk Editorial Team on 14 October 2002

More memory and
speed for data-acquisition SoCs

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Analog Devices has released five new MicroConverters and their associated QuickStart evaluation kits, adding to its extensive family of data-acquisition SoCs

These new devices preserve the signature analogue-to-digital convertor precision, enhancing the MicroConverter family by offering an eight-fold increase in on-chip memory - facilitating larger programs and C programming. Each device offers 62Kbyte of Flash/EE program memory, 8Kbyte of Flash/EE data memory, and 2304byte of data RAM.

A comprehensive suite of peripherals includes precision ADCs, voltage output DACs, PWM/sigma-delta outputs, temperature sensor and reference.

Also included are a watchdog timer, time-interval-counter, serial I/O ports (I2C, SPI and UART), and three timers/counters - timer 3 facilitates an accurate baud-rate generator at up to 524kbaud.

The ADuC831/41 - drop in replacements for the ADuC812 - are for use in applications where larger memory and/or higher core speed are required.

They differ in that the ADuC831 has a 12-clock-per-instruction core and a 16MHz maximum clock rate, while the ADuC841 has a one-clock-per-instruction core and a maximum clock rate of 16MHz at 3V and 25MHz at 5V.

The high-frequency clock is supplied externally.

The ADuC832/42 are identical to the ADuC831/32 respectively, except that they operate from a 32kHz crystal, with an on-chip PLL generating the high-frequency clock.

The ADuC831/32 have an eight-channel 200Ksample/s ADC and a 100ppm/C reference.

The ADuC841/42 offer a higher-throughput eight-channel ADC (up to 400Ksample/s), a more accurate reference (20ppm/C), an enhanced I2C interface and higher core speed.

The ADuC836 is an expanded memory version of the ADuC816.

It includes dual 16bit sigma-delta ADCs, a 12bit DAC, temperature sensor, reference and the same digital peripheral set as detailed above.

For 24bit performance, the ADuC824/34 provides a fully compatible upgrade path.

All parts are packaged in a 52-lead plastic quad flatpack and in the smaller (8 x 8mm) chip-scale package.

Integration, precision and low power make these parts ideal for smart/remote sensor interface in industrial, instrumentation (including portable) and automotive applications, as well as for monitoring/control of critical parameters in communications infrastructure such as basestations and optical transceivers.

Available now, the ADuC8xx are priced per unit in 10,000 quantities as follows: the ADuC831/2 are priced at $7.22, the ADuC841/2 at $7.95 and the ADuC836 at $8.11.

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