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Please refer to Event Code: MSP124

DALLAS (August 18, 1997) -- A new single-supply, 10-bit, 20 megasamples per second (MSPS) analog-to-digital converter (ADC) from Texas Instruments allows designers to reduce board space, decrease power dissipation, improve bus efficiency, increase flexibility and lower system cost. This ADC’s speed and resolution make it ideal in digital video systems, digital cameras, scanners, communications systems and other cost-sensitive, high performance applications.

The device, designated the TLC876, is pin compatible with the current market alternative and offers several key improvements. The TLC876’s power consumption is only 107mW, 33 percent lower than the competitive device. Designers experiencing bus delays will find the TLC876 significantly reduces enable and disable times (5ns versus 150ns), improving bus efficiency and system throughput. The TLC876 analog input has been designed to allow inputs as low as ground, permitting the system designer to eliminate level shifting stages prior to the ADC, saving board space and cost. Additionally, the reference input impedence is two times higher, reducing the drive requirements and cost of the reference drive circuitry. The TLC876 guarantees Differential Non-Linearity (DNL) of less than 1LSB and delivers 54dB of Signal-to-Noise Ratio (SNL).

Features/Benefits

Price	Lowers system costs due to reduced requirements for reference and level shifting circuitry.
Input range includes ground	Gives the engineer optimum design potential due to fewer components, more board space and lower system costs.
Increased reference impedance	Reduces current loading of the reference drive circuitry, giving many more options for reference circuitry, thus improves stability and decreases system costs.
Reduced power consumption	Reduces the current loading of the system power supplies thus makes the system greener.
Reduced enable and disable times	Greatly improves system efficiency and increases total system performance.
Pin-compatible to the current market alternative ADC	Provides designers with more choices, and can be used in designs already planned with the current market alternative.

End Equipment Applications

Applications for the TLC876 include:

• Electronic still cameras
  
• Video tape recorders
  
• Video systems
  
• 256 quadrature amplitude modulation (QAM) systems
  
• Color scanners
  
• Digital copiers

Pricing, Packaging and Availability

The TLC876 is now available from TI and its authorized distributors. The TLC876 is available in a 28-pin small-outline integrated circuit (SOIC) or a 28-pin shrink small-outline package (SSOP) and is available in commercial (0 to 70 C) and industrial (-40 to 85 C) temperature ranges. Suggested pricing for the TLC876 starts at $2.89 in quantities of 1,000.