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Part Number: MAX7651
Description: The MAX7651/MAX7652 are complete 12-bit data-acquisition systems featuring an algorithmic, switched-ca...
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MAX7651
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General Description
MAX7651 General Description
The MAX7651/MAX7652 are complete 12-bit data-acquisition systems featuring an algorithmic, switched-capacitor, analog-to-digital converter (ADC), a pulsewidth- modulated digital-to-analog converter (DAC), three timer/counters, and an industry-standard 8051 microprocessor core with a variety of I/O peripherals. Powerdown capability and full functionality with supply voltages as low as +3V make the MAX7651/MAX7652 suitable for portable and power-sensitive applications.
The MAX7651/MAX7652 perform fully differential voltage measurements with 12-bit resolution, programmable gain, and separate track-and-hold for both positive and negative inputs. The converter accepts versatile input modes consisting of four 2-channel signal pairs or eight 1-channel signals relative to a floating common.
The MAX7651/MAX7652 microprocessor systems feature a CPU, 256 bytes of RAM, two 8kB flash memory, four 8-bit I/O ports, two UARTs, an interrupt controller, and a watchdog timer. Only four clock cycles are required to complete each microprocessor instruction.
The MAX7651/MAX7652 are available in 64-pin TQFP packages.
MAX7651 Maximum Ratings
AVDD, PWMV, DVDD to AGND_ ..............................-0.3V to +6V
AVDD, DVDD to DGND..............................................-0.3V to +6V
AVDD to DVDD .......................................................-0.3V to +0.3V
AGND, PWMG to DGND .........................................-0.3V to +0.3V
Analog Inputs (AIN_, ACOM, XTAL1, XTAL2)
to AGND..................................................-0.3V to AVDD_ + 0.3V
Analog Outputs (PWMA, PWMB)
to AGND_................................................-0.3V to AVDD_ + 0.3V
Digital I/O (A_, AD_, ALE/PROG, EA/VPP, INT0,
INT1, P_._, PSEN, RST) to DGND ................-0.3V to DVDD + 0.3V
REF+, REF- to AGND_ ................................-0.3V to AVDD_ + 0.3V
Short-Circuit Duration (PWM_, P_._, ALE/PROG, PSEN).............1s
Continuous Power Dissipation (TA = +70°C)
64-Pin TQFP (derate 5.00mW/°C above +70°C).........500mW
Operating Temperature Range
MAX765_CCB ....................................................0°C to +70°C
MAX765_ECB .................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range ..........................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
AVDD, DVDD to DGND..............................................-0.3V to +6V
AVDD to DVDD .......................................................-0.3V to +0.3V
AGND, PWMG to DGND .........................................-0.3V to +0.3V
Analog Inputs (AIN_, ACOM, XTAL1, XTAL2)
to AGND..................................................-0.3V to AVDD_ + 0.3V
Analog Outputs (PWMA, PWMB)
to AGND_................................................-0.3V to AVDD_ + 0.3V
Digital I/O (A_, AD_, ALE/PROG, EA/VPP, INT0,
INT1, P_._, PSEN, RST) to DGND ................-0.3V to DVDD + 0.3V
REF+, REF- to AGND_ ................................-0.3V to AVDD_ + 0.3V
Short-Circuit Duration (PWM_, P_._, ALE/PROG, PSEN).............1s
Continuous Power Dissipation (TA = +70°C)
64-Pin TQFP (derate 5.00mW/°C above +70°C).........500mW
Operating Temperature Range
MAX765_CCB ....................................................0°C to +70°C
MAX765_ECB .................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range ..........................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
MAX7651 Features
· 12-Bit 53ksps ADC with Fully Differential Inputs
· Dual 8-Bit PWM DAC Outputs
· Three Timers
· 4-Clock Cycle 8051-Compatible Instruction Set
with Dual Data Pointers
· Programmable Watchdog Supervisor
· Four Parallel I/O Ports
· Dual Serial I/O Ports (up to 375kb)
· +3V or +5V Single-Supply Operation
· DC to 12MHz Clock Speed
· 64-Pin TQFP Package
· Dual 8-Bit PWM DAC Outputs
· Three Timers
· 4-Clock Cycle 8051-Compatible Instruction Set
with Dual Data Pointers
· Programmable Watchdog Supervisor
· Four Parallel I/O Ports
· Dual Serial I/O Ports (up to 375kb)
· +3V or +5V Single-Supply Operation
· DC to 12MHz Clock Speed
· 64-Pin TQFP Package
MAX7651 Typical Application
·Hand-Held Instruments
·Portable Data-Acquisition Systems
·Temperature Controllers
·Smart Transmitters
·Data Loggers
·Multi-Channel Data-Acquisition with Data Formatting
·Portable Data-Acquisition Systems
·Temperature Controllers
·Smart Transmitters
·Data Loggers
·Multi-Channel Data-Acquisition with Data Formatting
MAX7651 Connection Diagram
MAX7651
PDF/DataSheet Download
- Datasheet: MAX7651
- File Size: 491378 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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