ADUC812BS

Product Summary

The ADUC812BS is a fully integrated 12-bit data acquisition system incorporating a high performance self-calibrating multichannel ADC, two 12-bit DACs and programmable 8-bit(8051-compatible) MCU on a single chip. The programmable 8051-compatible core of ADUC812BS is supported by 8K bytes Flash/EE program memory, 640 bytes Flash/EE data memory and 256 bytes data SRAM on-chip. Normal, idle and power-down operating modes for both the MCU core and analog converters allow for flexible power management schemes suited to low power applications. The applications of the ADUC812BS include: Intelligent Sensors (IEEE 1451.2-Compatible), Battery Powered Systems (Portable PCs, Instruments, Monitors), Transient Capture Systems, DAS and Communications Systems.

Parametrics

ADUC812BS absolute maximum ratings: (1)AVDD to DVDD: –0.3 V to +0.3 V; (2)AGND to DGND: –0.3 V to +0.3 V; (3)DVDD to DGND, AVDD to AGND: –0.3 V to +7 V; (4)Digital Input Voltage to DGND: –0.3 V to DVDD + 0.3 V; (5)Digital Output Voltage to DGND: –0.3 V to DVDD + 0.3 V; (6)VREF to AGND: –0.3 V to AVDD + 0.3 V; (7)Analog Inputs to AGND: –0.3 V to AVDD + 0.3 V; (8)Operating Temperature Range Industrial (B Version): –40℃ to +85℃; (9)Storage Temperature Range: –65℃ to +150℃; (10)Junction Temperature: 150℃; (11)θJA Thermal Impedance: 90℃/W; (12)Lead Temperature, Soldering: Vapor Phase (60 sec): 215℃; Infrared (15 sec): 220℃.

Features

ADUC812BS features: (1)8-Channel, High Accuracy 12-Bit ADC; (2)On-Chip, 40 ppm/℃ Voltage Reference; (3)High Speed 200 kSPS; (4)DMA Controller for High Speed ADC-to-RAM Capture; (5)Two 12-Bit Voltage Output DACs; (6)On-Chip Temperature Sensor Function; (7)8K Bytes On-Chip Flash/EE Program Memory; (8)640 Bytes On-Chip Flash/EE Data Memory; (9)On-Chip Charge Pump (No Ext. VPP Requirements); (10)256 Bytes On-Chip Data RAM; (11)16M Bytes External Data Address Space; (12)64K Bytes External Program Address Space; (13)12 MHz Nominal Operation (16 MHz Max); (14)Three 16-Bit Timer/Counters; (15)32 Programmable I/O lines; (16)High Current Drive Capability—Port 3; (17)Nine Interrupt Sources, Two Priority Levels; (18)Specified for 3 V and 5 V Operation; (19)Normal, Idle and Power-Down Modes.

Diagrams