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HT574

Features: • Specified Over -55 to +225°C• Includes On-Chip Clock, Reference, mP Interface and Sample/Hold• 11-Bit Linearity• 10 s Maximum Conversion, Including Acquisition• Hermetic 28-Lead Ceramic DIPApplication• Down-Hole Oil Well• Avionics• Turbin...

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SeekIC No. : 004366882 Detail

HT574: Features: • Specified Over -55 to +225°C• Includes On-Chip Clock, Reference, mP Interface and Sample/Hold• 11-Bit Linearity• 10 s Maximum Conversion, Including Acquisition...

HT574 Data Sheet

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Part Number:
HT574
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Specified Over -55 to +225°C
• Includes On-Chip Clock, Reference, mP Interface and Sample/Hold
• 11-Bit Linearity
• 10 s Maximum Conversion, Including Acquisition
• Hermetic 28-Lead Ceramic DIP


Application

• Down-Hole Oil Well
• Avionics
• Turbine Engine Control
• Industrial Process Control
• Nuclear Reactor
• Electric Power Conversion
• Heavy Duty Internal Combustion Engines


Pinout

Connection Diagram


Specifications

VDD to Analog Common .................................................................................................0V to +12.5V
VLOGIC to Digital Common ................................................................................................. 0V to +7V
Analog Common to Digital Common .............................................................................................±1V
Control Inputs (CE, NCS, 12_N8, Ao, R_NS) to Digital Common........................ -0.5V to VLOGIC +0.5V
Analog Inputs (VREF_IN, BIP_OFF, 10V_IN) to Analog Common ..............................................  ±12.5V
20V_IN to Analog Common .........................................................................................................±24V
VREF_OUT ......................................................................................... Indefinite Short Circuit to Ground
Power Dissipation ..................................................................................................................  1000mW
Storage Temperature ..................................................................................................... -65 to +325
Lead Temperature (Attachment, 10 sec.) ......................................................................................355
ESD Protection..............................................................................................................................2000V

(1) Stresses in excess of those listed above may result in permanent damage. These are stress ratings only, and operation at these levels is not implied.
Frequent or extended exposure to absolute maximum conditions may effect device reliability.


Description

The HT574 is a general purpose, 12-bit successive approximation A/D converter intended for applications with an extremely wide operating temperature range. Fabricated with Honeywell's dielectrically isolated high temperature (HTMOS™) process, it is designed specifically for severe high-temperature applications.

The HT574 includes a switched capacitor, digital-to-analog converter, internal reference, comparator, successive approximation register, sample and hold, oscillator and architecture which allows it to be used with minimal external components. Tristate output buffers and digital control pins are also provided for microprocessor interfacing. Analog input signal ranges of 0 to +10V, 0 to +20V, or ±5V may be selected from the internal resistor scaling network.

The HT574 provides 12-bit conversions in 10ms over the entire -55 to +225°C temperature range. Typically, parts will operate up to +300°C for a year, with derated performance. All parts are burned in at 250°C to eliminate infant mortality.




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