ADUC836BS

Product Summary

The ADUC836BS is a complete smart transducer front end, integrating two high resolution ∑△ ADCs, an 8-bit MCU, and program/data Flash/EE memory on a single chip. The applications of the ADUC836BS include Intelligent Sensors, Weigh Scales, Portable Instrumentation, Battery-Powered Systems, 4–20 mA Transmitters, Data Logging and Precision System Monitoring.

Parametrics

ADUC836BS absolute maximum ratings: (1)AVDD to AGND: –0.3 V to +7 V; (2)AVDD to DGND: –0.3 V to +7 V; (3)DVDD to AGND: –0.3 V to +7 V; (4)DVDD to DGND: –0.3 V to +7 V; (5)AGND to DGND: –0.3 V to +0.3 V; (6)AVDD to DVDD: –2 V to +5 V; (7)Analog Input Voltage to AGND: –0.3 V to AVDD + 0.3 V; (8)Reference Input Voltage to AGND: –0.3 V to AVDD + 0.3 V; (9)AIN/REFIN Current (Indefinite): 30 mA; (10)Digital Input Voltage to DGND: –0.3 V to DVDD + 0.3 V; (11)Digital Output Voltage to DGND: –0.3 V to DVDD + 0.3 V; (12)Operating Temperature Range: –40℃ to +125℃; (13)Storage Temperature Range: –65℃ to +150℃; (14)Junction Temperature: 150℃; (15)θJA Thermal Impedance (MQFP): 90℃/W; (16)θJA Thermal Impedance (LFCSP Base Floating): 52℃/W; (17)Lead Temperature, Soldering, Vapor Phase (60 sec): 215℃; Infrared (15 sec): 220℃.

Features

ADUC836BS features: (1)High Resolution ∑△ADCs: 2 Independent ADCs (16-Bit Resolution); 16-Bit No Missing Codes, Primary ADC; 16-Bit rms (16-Bit p-p) Effective Resolution @ 20 Hz; Offset Drift 10 nV/℃, Gain Drift 0.5 ppm/℃; (2)Memory: 62 Kbytes On-Chip Flash/EE Program Memory; 4 Kbytes On-Chip Flash/EE Data Memory; Flash/EE, 100 Year Retention, 100 Kcycles Endurance; 3 Levels of Flash/EE Program Memory Security; In-Circuit Serial Download (No External Hardware); High Speed User Download (5 Seconds); 2304 Bytes On-Chip Data RAM; (3)8051 Based Core: 8051 Compatible Instruction Set; 32 kHz External Crystal; (4)On-Chip Programmable PLL (12.58 MHz Max): 3×16-Bit Timer/Counter; 26 Programmable I/O Lines; 11 Interrupt Sources, 2 Priority Levels; Dual Data Pointer, Extended 11-Bit Stack Pointer; (5)On-Chip Peripherals: Internal Power on Reset Circuit; 12-Bit Voltage Output DAC.

Diagrams