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ADUC832BCPZ-REEL

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ADUC832BCPZ-REEL Overview

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, timeinterval counter, three timers/counters, Timer 3 for baud rate generation, and serial I/O ports (SPI, I2C®, and UART).

Applications

  • Optical networking—laser power control
  • Base station systems
  • Precision instrumentation, smart sensors
  • Transient capture systems
  • DAS and communications systems
  • Upgrade to ADuC812 systems; runs from 32 kHz
  • External crystal with on-chip PLL.
  • Also available: ADuC831 pin-compatible upgrade to existing ADuC812 systems that require additionalcode or data memory; runs from 1 MHz to 16 MHz
  • External crystal 

Features

  • 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
  • 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
  • 8051-based core
  • see data sheet for additional features

Applications

MicroConverter? ADuC8xx

Specifications

  • Core Processor 8052

  • Speed 16MHz

  • Operating Temperature -40℃ ~ 85℃ (TA)

  • Program Memory Type FLASH

  • RAM Size 2.25K x 8

  • Number of I/O 34

  • Peripherals PSM, Temp Sensor, WDT

  • Mounting Type Surface Mount

  • Oscillator Type Internal

  • Supplier Device Package 56-LFCSP-VQ (8x8)

  • EEPROM Size 4K x 8

  • Package / Case 56-VFQFN Exposed Pad, CSP

  • Core Size 8-Bit

  • Connectivity EBI/EMI, I2C, SPI, UART/USART

  • Program Memory Size 62KB (62K x 8)

  • Data Converters A/D 8x12b; D/A 2x12b

  • Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V

Circuit Diagram

ADUC832
ADUC832
ADUC832

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