Texas Instruments

Mixed Signal & Analog Showcase
Blue Band
Mixed Signal & Analog Showcase Inside:
Showcase (Volume 28) is available in HTML and PDF format. - 351KB

Analog Design Challenge — A
    chance to win $60,000
Supply Voltage Supervisor and
    watchdog timer
Three high-quality stereo audio
    codecs
Low-voltage differential
    signaling (LVDS) family
    of devices plus EVM offer
High-speed xDSL line
    driver/receiver offers ultra-low
    distortion
Family of rail-to-rail I/O ap amps
    drive ± 90-mA loads
Low-voltage single-supply
    family of op amps offers
    exceptional ac performance
Audio power amplifiers with
    75-mW stereo output drive
Universal op amp EVM offered
    with and without devices
    attached
The industry's fastest 12-bit
    Vout DACs available
New RF modulator/synthesizer
    simplifies the design of IS-136
    wireless handsets

Ultra low power MCU - 0.1 µA
    sleep mode
High-speed low-cost RS-232
    interface devices ideal for
    PC desktop applications
ESD protection at ± 15-kV in
    data line transceivers
New Data Transmission Line
    Circuits Data Book


10-Bit, 20 MSPS ADC provides high resolution and speed with 33% power savings

Product Features

  • 20 MSPS, 10-bit resolution ADC
  • 5-V single-supply operation
  • Low power dissipation ... 107 mW Typ
  • Pin-compatible with the AD876
  • Characterized for operation over Commercial (0°C to 70°C) and Industrial (–40°C to 85°C)

The TLC876 is a single-supply, 10-bit, 20 MSPS analog-to-digital converter (ADC) which allows designers to reduce board space, lower 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 107-mW, 33 percent lower than competitive device. Designers experiencing bus delays will find the TLC876 significantly reduces enable and disable times (5 ns vs. 150 ns), improving bus efficiency and system through-put.

The TLC876 analog input has been designed to allow inputs as low as ground. This permits the system designer to eliminate level shifting stages prior to the ADC, saving board space and cost. Additionally, the reference input impedance 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 1-LSB and delivers 54 dB of signal-to-noise ratio (SNL).

The TLC876 features three-state outputs, and both inputs and outputs are compatible with 3-V and 5-V logic. The TLC876 is available in 28-pin SOIC or 28-pin SSOP packaging.

TI&ME

Vol 28 August, 1998

(c) Copyright 1998 Texas Instruments Incorporated. All rights reserved.
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