ADUC836BSZ

ADuC836 is a complete smart transducer front end, integrating two high resolution Σ-Δ ADCs, an 8bit MCU and program/data Flash/EE memory on a single chip. The two independent ADCs (primary and auxiliary) include a temperature sensor and a PGA (allowing direct measurement of low level signals). The ADCs with on-chip digital filtering and programmable output data rates are intended for the measurement of wide dynamic range, low frequency signals, such as those in weigh scale, strain gauge, pressure transducer, or temperature measurement applications. The device operates from a 32KHz crystal with an on-chip PLL generating a high frequency clock of 12.58MHz. This clock is routed through a programmable clock divider from which the MCU core clock operating frequency is generated. Typical application includes intelligent sensors, weigh scales, portable instrumentation, battery-powered systems 4-20mA transmitters, data logging and precision system monitoring.

• 2 independent ADC, 16bit no missing codes, primary ADC, offset drift 10nV/°C, gain drift 0.5ppm/°C
• 62Kbytes on-chip flash/EE program memory, 4Kbytes on-chip flash/EE data memory
• In-circuit serial download, high speed user download (5s) and 2304bytes on-chip data RAM
• 8051 compatible instruction set, 32KHz external crystal, 3x16bit timer/counter, 26 programmable I/O
• 11 interrupt sources, two priority levels
• On-chip peripherals: time interval counter (wake-up/RTC timer), UART, SPI® and I2C® serial I/O, WDT
• Internal power on reset circuit, on-chip temperature sensor, dual excitation current sources
• Specified for 3V and 5V operation
• Power of 2.3mA max at 3.6V (core CLK = 1.57MHz) normal, 20µA max with wake-up timer running
• 52 lead MQFP package, operating temperature range from -40°C to 125°C

บันทึก

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party