Converter family includes large memory and higher speed core
20 November 2002
Analogue, Mixed Signal, LSI
Analog Devices has announced five new MicroConverters and their associated QuickStart evaluation kits, adding to its family of data-acquisition systems on a chip. These devices preserve the signature analog-to-digital converter precision, enhancing the MicroConverter family by offering an eight-fold increase in on-chip memory - facilitating larger programs and C-programming. Each device offers 62 KB of flash/EE program memory, 8 KB of flash/EE data memory, and 2304 bytes 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 & UART), and three timers/counters-timer three facilitates an accurate baud-rate generator at up to 524 kbaud.
The ADuC831, ADuC841 - 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 16 MHz max clock rate, while the ADuC841 has a 1-clock-per-instruction core and a max clock rate of 16 MHz at 3 V and 25 MHz at 5 V. The high-frequency clock is supplied externally. The ADuC832, ADuC842 are identical to the ADuC831/41 respectively, except that they operate from a 32 kHz crystal, with an on-chip PLL generating the high-frequency clock. The ADuC831/32 have an 8-channel 200 kSa/s ADC and a 100 ppm/°C reference. The ADuC841/42 offer a higher throughput 8-channel ADC (up to 400 kSa/s), a more accurate reference (20 ppm/°C), an enhanced I2C interface and higher core speed.
The ADuC836 is an expanded memory version of the ADuC816. It includes dual 16-bit sigma-delta ADCs, a 12-bit DAC, temperature sensor, reference and the same digital peripheral set as detailed above. For 24-bit 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 8 mm) 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 base stations and optical transceivers.
For more information contact Analog Data Products, 011 259 9400.
Further reading:
Dual-range IMU with edge processing
EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s innovative LSM6DSV80X combines two accelerometer structures for 16 g and 80 g full-scale sensing, a gyroscope up 4000 dps, and embedded intelligence in a single component.
Read more...
High-reliability isolation amplifiers
EBV Electrolink
Analogue, Mixed Signal, LSI
The VIA series of isolation amplifiers from Vishay are designed to deliver exceptional thermal stability and precise measurement capabilities.
Read more...
Mibbo QT2C Series signal isolators
Conical Technologies
Analogue, Mixed Signal, LSI
The Mibbo QT2C Series isolators support a rich combination of input and output signals, working with either current loops or voltage levels.
Read more...
IMU with dual-sensing capability
EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.
Read more...
Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.
Read more...
Precision JFET op-amp
Altron Arrow
Analogue, Mixed Signal, LSI
The specifications of the ADA4620 make it optimal as a front-end amplifier in a data-acquisition system, or for a TIA circuit with high input impedance.
Read more...
A new era in modular I/O solutions
Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...
High voltage instrument op-amp
iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...
High-speed SAR ADC simplifies design
Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
Read more...
2-wire quad voltage output DAC
Altron Arrow
Analogue, Mixed Signal, LSI
The DAC has a 2-wire serial interface that operates at clock rates up to 400 kHz, and this interface is SMBus compatible, allowing multiple devices to be placed on the same bus.
Read more...