GENERAL DESCRIPTION The TC520A SERIAL Interface Adapter provides logic CONTROL for TelComs TC500/500A/510/514 family of dual slope, integrating A/D converters. It directly manages TC500 converter phase CONTROL signals A, B, and CMPTR thereby reducing host processor task loading and software complexity. Communication WITH the TC520A is accomplished over a 3 wire SERIAL port. Key converter operating parameters are programmable for complete user flexibility.
FEATURES ■ Converts TC500/500A/510/514 to SERIAL Operation ■ Programmable Conversion Rate and Resolution for Maximum Flexibility ■ Supports up to 17 Bits of Accuracy Plus Polarity Bit ■ Low Power Operation: Typically 7.5mW ■ 14-Pin DIP or 16-Pin SOIC Packages ■ Polled or Interrupt Mode Operation
GENERAL DESCRIPTION The MP7610 provides eight independent 14-bit resolution Digital-to-Analog Converters WITH voltage output amplifiers and a 3-wire standard SERIAL digital address and data port. The output amplifier is capable of sinking and sourcing 5mA, and the output voltage settles to 12-bits in less than 30ms (typ.). The MP7610 is equipped WITH a SERIAL data (3-wire standard) m-processor logic interface to reduce pin count, package size, and board space.
FEATURES • Eight Independent 14-Bit DACs WITH Output Amplifiers • Low Power 320 mW (typ.) • SERIAL Digital Data and Address Port (3-Wire Standard) • 14-Bit Resolution, 12-Bit Accuracy • Extremely Well Matched DACs • Extremely Low Analog Ground Current (<60μA/Channel) • ±10 V Output Swing WITH ±11.4 V Supplies • Zero Volt Output Preset (Data = 10 .. 00) • Rugged Construction -- Latch-Up Free • Parallel Version: MP7611
APPLICATIONS • Data Acquisition Systems • ATE • Process CONTROL • Self-Diagnostic Systems • Logic Analyzers • Digital Storage Scopes • PC Based CONTROLler/DAS
The MP7612 provides eight independent 12-bit resolution Digital-to-Analog Converters WITH voltage output amplifiers and a 3-wire standard SERIAL digital address and data port. Typical DAC matching for B grade versions is 0.7 LSB across all codes. Accuracy of +0.75 LSB for DNL and +1 LSB for INL is also achieved for B grades. The output amplifier is capable of sinking and sourcing 5mA, and the output voltage settles to 12-bits in less than 30µs (typ.).
• Eight Independent 12-Bit DACs WITH Output Amplifiers
• Low Power 320 mW (typ.)
• SERIAL Digital Data and Address Port (3-Wire Standard)
• 12-Bit Resolution, 11 Bit Accuracy
• Extremely Well Matched DACs
• Extremely Low Analog Ground Current (<60µA/Channel)
• +10 V Output Swing WITH +11.4 V Supplies
• Zero Volt Output Preset (Data = 10 .. 00)
• Rugged Construction – Latch-Up Free
• Parallel Version: MP7613
• Data Acquisition Systems
• Process CONTROL
• Self-Diagnostic Systems
• Logic Analyzers
• Digital Storage Scopes
• PC Based CONTROLler/DAS
GENERAL INFORMATION The DAC8143 is a 12-bit SERIAL-input daisy-chain CMOS D/A converter that features SERIAL data input and buffered SERIAL data output. It was designed for multiple SERIAL DAC systems, where SERIALly daisy-chaining one DAC after another is greatly simplified.
FEATURES Fast, Flexible, Microprocessor Interfacing in SERIALly CONTROLled Systems Buffered Digital Output Pin for Daisy-Chaining Multiple DACs Minimizes Address-Decoding in Multiple DAC Systems—Three-Wire Interface for Any Number of DACs One Data Line One CLK Line One Load Line Improved Resistance to ESD –40°C to +85°C for the Extended Industrial Temperature Range
APPLICATIONS Multiple-Channel Data Acquisition Systems Process CONTROL and Industrial Automation Test Equipment Remote Microprocessor-CONTROLled Systems
The CDP68HC68A2 is a CMOS 8-bit or 10-bit successive approximation analog to digital converter (A/D) WITH a standard SERIAL Peripheral Interface (SPI) bus and eight multiplexed analog inputs. Voltage referencing is user selectable to be relative to either VDD or analog channel 0 (AI0). The analog inputs can range between VSS and VDD. The CDP68HC68A2 employs a switched capacitor, successive approximation A/D conversion technique which provides an inherent sample-and-hold function. An onchip Schmitt oscillator provides the internal timing for the A/D converter. The Schmitt input can be externally clocked or connected to a single, external capacitor to form an RC oscillator WITH a period of approximately 10-30ns per picofarad. Conversion times are proportional to the oscillator period. At the maximum specified frequency of 1MHz, 10-bit conversions take 14μs per channel. At the same frequency, 8-bit conversions consume 12μs per channel.
Features • 10-Bit Resolution • 8-Bit Mode for Single Data Byte Transfers • SPI (SERIAL Peripheral Interface) Compatible • Operates Ratiometrically Referencing VDD or an External Source • 14μs 0-Bit Conversion Time • 8 Multiplexed Analog Input Channels • Independent Channel Select • Three Modes of Operation • On Chip Oscillator • Low Power CMOS Circuitry • Intrinsic Sample and Hold