ADuC832 MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kB Flash MCU

The ADuC832 is a complete, smart transducer front end, integrating a high performance self-calibrating multichannel 12-bit ADC, dual 12-bit DACs, and programmable 8-bit MCU on a single chip.

The device operates from a 32 kHz crystal with an on-chip PLL, generating a high frequency clock of 16.78 MHz. This clock is, in turn, routed through a programmable clock divider from which the MCU core clock operating frequency is generated. The microcontroller core is an 8052 and is therefore 8051 instruction set compatible with 12 core clock periods per machine cycle. 62 kB of nonvolatile Flash/EE program memory are provided on chip. There are also 4 kB of nonvolatile Flash/EE data memory, 256 bytes of RAM, and 2 kB of extended RAM integrated on chip.

The ADuC832 also incorporates additional analog functionality with two 12-bit DACs, a power supply monitor, and a band gap reference. On-chip digital peripherals include two 16-bit Σ-Δ DACs, a dual-output 16-bit PWM, a watchdog timer, time interval counter, three timers/counters, Timer 3 for baud rate generation, and serial I/O ports (SPI, I2C®, and UART).

Applications

Features and Benefits

Analog I/O

8-channel, 247 kSPS, 12-Bit ADC DC performance: ±1 LSB INL AC performance: 71 dB SNR
DMA controller for high speed ADC-to-RAM capture
2 12-bit (monotonic) voltage output DACs
Dual output PWM/Σ-Δ DACs
On-chip temperature sensor function: ±3°C
On-chip voltage reference

8-channel, 247 kSPS, 12-Bit ADC DC performance: ±1 LSB INL AC performance: 71 dB SNR

DMA controller for high speed ADC-to-RAM capture

2 12-bit (monotonic) voltage output DACs

Dual output PWM/Σ-Δ DACs

On-chip temperature sensor function: ±3°C

On-chip voltage reference

Memory

62 kB on-chip Flash/EE program memory
4 kB on-chip Flash/EE data memory
Flash/EE, 100 Yr retention, 100,000 cycles of endurance
2304 bytes on-chip data RAM

62 kB on-chip Flash/EE program memory

4 kB on-chip Flash/EE data memory

Flash/EE, 100 Yr retention, 100,000 cycles of endurance

2304 bytes on-chip data RAM

8051-based core

see data sheet for additional features

Processors & DSP

8052 Core Products

Data Sheets

Document	note
ADuC832: MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kB Flash MCU Data Sheet (Rev. C) ADuC832: Errata Sheet (Rev B1, 11/2002)	PDF 1.05 M

Application Notes

Document	note
AN-282: Fundamentals of Sampled Data Systems	PDF 2131 kB
AN-660: XY-Matrix Keypad Interface to MicroConverter® (Rev. 0) AN-660 Accompanying Source Code	PDF 286 kB
AN-759: Expanding the Number of DAC Outputs on the ADuC8xx and ADuC702x Families (uC012) (Rev. 0) AN-759 Companion Code (zip, 3,464 bytes)	PDF 112 kB
AN-709: RTD Interfacing and Linearization Using an ADuC8xx MicroConverter&® (Rev. 0) AN-709 Accompanying Files (Tools and Source Code)	PDF 698 kB
AN-1139: Understanding the Parallel Programming Protocol (Rev. 0)	PDF 174 kB
AN-1074: Understanding the Serial Download Protocol (Formerly uC004) (Rev. 0)	PDF 245 kB
UC-019: DMA To XRAM on the ADuC831/832 (Rev. prA) uC019 Files	PDF 670 kB
UC-018: Uses of the Time Interval Counter (Rev. prA) uC018 Files	PDF 632 kB
UC-001: MicroConverter® I2C® Compatible Interface uC001 Files	PDF 126 kB
UC-007: User Download (ULOAD) Mode uC007 Files	PDF 0 kB
UC-016: Migrating to the ADuC832 from the ADuC812	PDF 53 kB
UC-009: Addressing 16MB of External Data Memory	PDF 173 kB
UC-006: A 4-wire UART-to-PC Interface uC006 Gerber File (1) uC006 Files uC006 Gerber Files (2)	PDF 157.71 K
AN-643: Closed-Loop Control Circuit Implementation of the ADuC832 MicroConverter®IC and the AD8305 Logarithmic Converter in a Digital Variable Optical Attenuator (Rev. 0)	PDF 395 kB
AN-654: Optical Module Development Platform 2.5 Gbps Transmitter with Digital Diagnostics (Rev. 0)	PDF 387 kB

User Guides

Document	note
UG-041: ADuC8xx Evaluation Kit Getting Started User Guide	PDF 679 kB
ADuC832 Quick Reference Guide	PDF 393 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADUC832BCPZ Production	56 ld LFCSP (8x8mm, 6.1mm EP)	OTH 260	-40 to 85C	10.07	8.87	Y
ADUC832BCPZ-REEL Production	56 ld LFCSP (8x8mm, 6.1mm EP)	REEL 2500	-40 to 85C	0	8.87	Y
ADUC832BSZ Production	52 ld MQFP (13.90mm width)	OTH 96	-40 to 125C	10.07	8.87	Y
ADUC832BSZ-REEL Production	52 ld MQFP (13.90mm width)	REEL 800	-40 to 125C	0	8.87	Y