ADUC847BCP8-3

a MicroConverter, 10-channel 24-Bit ADC with Embedded 62kB FLASH MCU Preliminary Technical Data FEATURES High Resolution Sigma-Delta ADC 24-Bit Resolution Up to 10 ADC input channels 24-Bit No Missing Codes 20-Bit rms (17.4 Bit p-p) Effective Resolution @ 60 Hz Offset Drift 10 nV/°C, Gain Drift 0.5 ppm/°C (Chop enabled) 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 8051-Based Core 8051 Compatible Instruction Set High Performance Single Cycle Core 32 kHz External Crystal On-Chip Programmable PLL (12.58 MHz Max) 3 x 16-Bit Timer/Counter 26 Programmable I/O Lines 11 Interrupt Sources, Two Priority Levels Dual Data Pointer, Extended 11-Bit Stack Pointer ADuC847 On-Chip Peripherals Internal Power on Reset Circuit Dual 16-Bit S-D DACs/PWMs On-Chip Temperature Sensor Dual Excitation Current Sources Time Interval Counter (Wakeup/RTC Timer) UART, SPI®, and I2C® Serial I/O High Speed Baud Rate Generator (incl 115,200) Watchdog Timer (WDT) Power Supply Monitor (PSM) Power Normal: 2.3mA Max @ 3.6 V (Core CLK = 1.57 MHz) Power-Down: 20mA Max with Wakeup Timer Running Specified for 3 V and 5 V Operation Package and Temperature Range 52-Lead MQFP (14 mm x 14 mm), –40°C to +125°C 56-Lead CSP (8 mm x 8 mm), –40°C to +85°C APPLICATIONS Multi channel Sensor monitoring Industrial/Environmental Instrumentation WeighScales Portable Instrumentation, Battery Powered Systems 4-20mA Transmitters Data Logging Precision System Monitoring FUNCTIONAL BLOCK DIAGRAM REV. PrA 05/03 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. 2 Purchase of licensed I C components of Analog Devices or one of its sublicensed 2 Associated Companies conveys a license for the purchaser under the Philips I C 2 Patent Rights to use these components in an I C system, provided that the system 2 conforms to the I C Standard Specification as defined by Philips One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 Fax: 781/326-8703 www.analog.com © 2003 Analog Devices, Inc. All rights reserved ADUC847* Product Page Quick Links Last Content Update: 11/01/2016 Comparable Parts Tools and Simulations View a parametric search of comparable parts • Sigma-Delta ADC Tutorial Evaluation Kits Reference Materials • ADuC847 QuickStart Development System Technical Articles • Integrated Route Taken to Pulse Oximetry Documentation Application Notes • AN-1074: Understanding the Serial Download Protocol (Formerly uC004) • AN-1139: Understanding the Parallel Programming Protocol • AN-282: Fundamentals of Sampled Data Systems • AN-660: XY-Matrix Keypad Interface to MicroConverter® • AN-709: RTD Interfacing and Linearization Using an ADuC8xx MicroConverter&® • AN-759: Expanding the Number of DAC Outputs on the ADuC8xx and ADuC702x Families (uC012) • UC-006: A 4-wire UART-to-PC Interface • UC-009: Addressing 16MB of External Data Memory Data Sheet • ADuC845/ADuC847/ADuC848: MicroConverter® MultiChannel 24-/16-Bit ADCs with Embedded 62 kB FLASH and Single-Cycle MCU Data Sheet User Guides • ADuC845/ADuC847/ADuC848 Quick Reference Guide • UG-041: ADuC8xx Evaluation Kit Getting Started User Guide Design Resources • • • • ADUC847 Material Declaration PCN-PDN Information Quality And Reliability Symbols and Footprints Discussions View all ADUC847 EngineerZone Discussions Sample and Buy Visit the product page to see pricing options Technical Support Submit a technical question or find your regional support number * This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to the content on this page does not constitute a change to the revision number of the product data sheet. This content may be frequently modified. Preliminary Technical Data ADuC847 SPECIFICATIONS1 (AVDD = 2.7 V to 3.6 V or 4.75 V to 5.25 V, DVDD = 2.85 V to 3.6 V or 4.75 V to 5.25 V, REFIN(+) = 2.5 V, REFIN(–) = AGND; AGND = DGND = 0 V; XTAL1/XTAL2 = 32.768 kHz Crystal; all specifications TMIN, to TMAX unless otherwise noted.). Buffer On unless otherwise noted. PARAMETER MIN TYP MAX UNITS 5.4 16.06 24 19.79 59.36 105 1365 Hz Hz Bits Bits Pk-Pk Bits Pk-Pk Bits Pk-Pk Bits Pk-Pk CONDITION ADC (CHOP ENABLED) 1 Conversion Rate (Chop enabled) (Chop disabled) No Missing Codes2 Resolution (Chop enabled) (Chop disabled) (Chop enabled) (Chop disabled) Output Noise Integral Non Linearity 3 Offset Error 13.5 13 18.5 17.4 See Tables IV, V VI & VII in ADC Description ±2 ± 15 ±3 ppm of FSR µV See tables VI & VII Offset Error Drift vs. Temp (Chop enabled) Offset Error Drift vs. Temp (Chop disabled) 4 Full-Scale Error Gain Error Drift vs. Temp ± 10 ±200 ± 10 5 PARAMETER ADC ANALOG INPUTS 9, 10 Differential Input Voltage Ranges Bipolar Mode (ADC0CON.5 = 0) Unipolar Mode (ADC0CON.5 = 1) ADC Range Matching Power Supply Rejection Common Mode DC Rejection On AIN On AIN Common Mode 50/60Hz Rejection On AIN On AIN On AIN On AIN Normal Mode 50/60 Hz Rejection On AIN 2 Analog Input Current nV/°C nV/°C µV ppm/°C ± 0.5 MIN TYP MAX ± 1.024 x VREF/GAIN V 0 Æ 1.024 x Vref/GAIN ±2 80 113 V µV dBs dBs 95 dBs dBs Offset Error is in the order of the noise for the programmed gain and update rate following a calibration for CHOP disabled. Chop Enabled Chop Disabled CONDITION VREF = REFIN(+) - REFIN(-) (or Int 1.25V Ref) GAIN = 1 to 128 VREF = REFIN(+) - REFIN(-) GAIN=1 to 128 AIN=18mV AIN=1V, Range=± 2.56V AIN=7.8mV, Range=± 20mV 95 90 dBs dBs 95 90 dBs dBs @DC, AIN=7.8mV, Range=± 20mV @DC, AIN=1V, Range=± 2.56V 20Hz Update Rate 50/60Hz ± 1Hz, AIN=7.8mV, Range=± 20mV 50/60Hz ± 1Hz, AIN=1V, Range=± 2.56V 59Hz Update Rate 50/60Hz ± 1Hz, AIN=7.8mV, Range=± 20mV 50/60Hz ± 1Hz, AIN=1V, Range=± 2.56V dBs nA 50/60Hz ± 1Hz, 20Hz/59Hz Update Rate TMAX = 85°C 113 60 ±1 ±5 Analog Input Current Drift ±5 ± 15 ± 125 ±2 AINCOM Input Current AINCOM Input Current Drift 2 Absolute AIN Voltage Limits AGND + 0.1 Absolute AINCOM Voltage Limits AGND + 0.03 REV. PrA 05/03 UNITS CHOP = 0 (ADCMODE.3) CHOP = 1 (ADCMODE.3) 19.79Hz/ 59.36Hz Update Rate Range = ± 20mV, 20Hz Update Rate Range = ± 20mV, 59Hz Update Rate Range = ± 2.56V, 20Hz Update Rate Range = ± 2.56V, 59.4Hz Update Rate Output Noise varies with selected Update Rates and Gain Range 1 LSB16 CHOP Enabled AVDD – 0.1 AVDD – 0.03 2 nA pA/°C pA/°C nA/V pA/V/°C V V TMAX = 125°C TMAX = 85°C TMAX = 125°C ± 2.56V Range Ain0-Ain9 with Buffer ON (ADC0CON1.6 = 0 & ADC0CON1.7 = 0) Buffer bypassed (ADC0CON1.6=0, ADC0CON1.7=1) Preliminary Technical Data EXTERNAL REFERENCE INPUTS 2 REFIN(+) to REFIN(–) Range Average Reference Input Current Average Reference Input Current Drift ‘NO Ext. REF’ Trigger Voltage 0.3 Common Mode DC Rejection Common Mode 50/60Hz Rejection Normal Mode 50/60 Hz Rejection 125 90 60 PARAMETER ADC SYSTEM CALIBRATION Full Scale Calibration Limit Zero Scale Calibration Limit Input Span INT REFERENCE (CHOP ENABLED) ADC Reference Reference Voltage Power Supply Rejection Reference Tempco 1 MIN 1.237 Initial Tolerance at 25°C Drift REV. PrA 05/03 0.65 µA/V nA/V/°C V TYP MAX +1.05 x FS AIN- Current POWER SUPPLY MONITOR (PSM) AVDD Trip Point Selection Range AVDD Trip Point Accuracy AVDD Trip Point Accuracy DVDD Trip Point Selection Range DVDD Trip Point Accuracy DVDD Trip Point Accuracy V dBs dBs dBs -1.05 x FS 0.8 x FS TRANSDUCER BURNOUT CURRENT SOURCES AIN+ Current PARAMETER AVDD 1 +/- 0.1 TEMPERATURE SENSOR Accuracy Thermal Impedance EXCITATION CURRENT SOURCES Output Current Initial Tolerance at 25°C Drift Initial Current Matching at 25°C Drift Matching Line Regulation (AVDD) Load Regulation Output Compliance 2.5 2.1 x FS 1.25 45 100 1.2625 2.63 V dBs ppm/°C -100 nA 100 nA +/- 10 0.03 % %/°C 0.1 AVDD-0.6 TYP µA % ppm/°C % ppm/°C µA/V V V MAX UNITS 4.63 +/- 3.0 +/- 3.0 4.63 +/- 3.0 +/- 3.0 V % % V % % -3- ADC Enabled NOXREF bit active if VREF0.65 @DC, AIN=1V, Range=± 2.56V 50/60Hz ± 1Hz, AIN=1V, Range=± 2.56V 50/60Hz ± 1Hz, 20Hz/59.4Hz Update Rate CONDITION V V V °C °C/W °C/W AGND 2.63 UNITS +/- 2 90 52 -200 +/-10 200 +/-1 20 1 MIN ADuC847 initial tolerance @ 25°C, VDD=5V MQFP Package CSP Package AIN+ is the selected positive input (Ain4 or Ain6 only) to the ADC AIN- is the selected negative input (Ain5 or Ain7 only) to the ADC Available from each Current Source Matching between both Current Sources AVDD=5V +/- 5% CONDITION Four Trip Points selectable in this range TMAX = 85°C TMAX = 125°C Four Trip Points selectable in this range TMAX = 85°C TMAX = 125°C Preliminary Technical Data CRYSTAL OSCILLATOR (XTAL 1AND XTAL2) Logic Inputs, XTAL1 Only2 VINL, Input Low Voltage VINH, Input Low Voltage 0.8 0.4 V V V V pF pF DVDD = 5V DVDD = 3V DVDD = 5V DVDD = 3V 0.8 0.4 V V V DVDD = 5V DVDD = 3V 3.0 2.5 1.4 1.1 0.85 V V V V V DVDD = 5V DVDD = 3V DVDD = 5V DVDD = 3V DVDD = 5V or 3V +/- 10 -40 +/-10 +/-10 105 +/-10 -660 -75 10 V µA µA µA µA µA µA µA µA pF VIN = 0V or VDD VIN = 0V, DVDD=5V, Internal Pullup VIN = DVDD, DVDD=5V VIN = 0V, DVDD=5V VIN = DVDD, DVDD=5V, Internal Pull-Down VIN = DVDD, DVDD=5V VIN = 2V, DVDD=5V VIN = 0.45V, DVDD=5V All Digital Inputs 10 V V V V V µA pF 3.5 2.5 XTAL1 Input Capacitance XTAL2 Output Capacitance 18 18 LOGIC INPUTS All Inputs except SCLOCK, RESET and XTAL12 VINL, Input Low Voltage VINH, Input Low Voltage SCLOCK and RESET Only (Schmidt Triggered Inputs)2 VT+ VTVT+ - VTInput Currents Port 0, P1.0ÆP1.7, EA SCLOCK, MOSI,MISO SS13 2.0 1.3 0.95 0.8 0.4 0.3 2.0 -10 RESET 35 Port 2, Port 3 -180 -20 Input Capacitance LOGIC OUTPUTS All Digital Outputs except XTAL22 VOH, Output High Voltage VOL, Output Low Voltage14 2.4 2.4 0.8 0.8 0.8 +/-10 Floating State Leakage Current Floating State Output Capacitance PARAMETER START UP TIME At Power On After External RESET in Normal Mode After WDT RESET in Normal Mode From Idle Mode From Power-Down Mode Oscillator Running Wakeup with INT0 Interrupt Wakeup with SPI Interrupt Wakeup with TIC Interrupt Wakeup with External RESET Oscillator Powered Down Wakeup with INT0 Interrupt Wakeup with SPI Interrupt Wakeup with External RESET REV. PrA 05/03 MIN ADuC847 TYP MAX UNITS 300 3 3 10 ms ms ms us 20 20 20 3 us us us us 20 20 5 us us ms DVDD = 5V, ISOURCE = 80 µA DVDD = 3V, ISOURCE = 20 µA ISINK = 8mA, SCLOCK, MOSI/SDATA ISINK = 10mA, P1.0, P1.1 ISINK = 1.6mA, All Other Outputs CONDITION Controlled via WDCON SFR PLLCON.7 = 0 PLLCON.7 = 1 4 Preliminary Technical Data FLAH/EE MEMORY RELIABILITY CHARACTERISTICS Endurance16 100,000 700,000 Data Retention17 100 POWER REQUIREMENTS Power Supply Voltages AVDD 3V Nominal AVDD 5V Nominal DVDD 3V Nominal DVDD 5V Nominal 5V POWER CONSUMPTION Normal Mode18, 19 DVDD Current 2.85 4.75 2.85 4.75 Cycles Years 3.6 5.25 3.6 5.25 13 DVDD Current AVDD Current 4 16 180 mA mA µA core clock = 1.57MHz core clock = 12.58MHz 53 100 30 80 1 3 µA µA µA µA µA µA TMAX = 85°C; Osc ON;TIC ON TMAX = 125°C; Osc ON; TIC ON TMAX = 85°C; Osc OFF TMAX = 125°C; Osc OFF TMAX = 85°C; Osc ON or OFF TMAX = 125°C; Osc ON or OFF Typical Additional Peripheral Currents (AIDD and D IDD) Primary ADC 1 Auxiliary ADC 0.5 Power Supply Monitor 50 DAC 150 Dual Excitation Current Sources 400 mA mA µA µA µA 4.75V < DVDD