Current-Feedback Amplifier suits wireless communications.
January 16, 2004 - Housed in SO-8 and SOT23-6 packages, OPA695 IF amplifier is capable of single supply, +5 to +12 V operation. At G = +8, unit offers 4,300 V/µsec slew rate and greater than 450 MHz bandwidth. At G = +2, it offers 1.4 GHz bandwidth with 2,500 V/µ sec slew rate. Unit, specified over commercial and industrial temperature ranges, has 12.9 mA supply current and optional disable control pin and suits applications from video signal processing to wireless communications.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Texas Instruments, Inc., Semiconductors
12500 Texas Instruments Blvd.
Dallas, TX, 75243
USA
TI Establishes New Performance Level with Wideband, Current-Feedback Amplifier for Video Signal Processing and Wireless Communications
TUCSON, Ariz. (Jan. 14, 2004) – Texas Instruments Incorporated (TI) (NYSE: TXN) today announced a low-power, current-feedback amplifier from the company’s Burr-Brown product line, which offers unmatched bandwidth at low and high gains. The device is designed for applications in video signal processing, cable modems, wireless communications and test instrumentation. (See www.ti.com/sc04018).
At higher gains (G = +8), the OPA695 offers 4300V/usec slew rate and >450MHz bandwidth, providing a low-power solution for Intermediate Frequency (IF) amplifier applications. Capable of single supply +5V to +12V operation, the OPA695 gives an improved output intercept at lower power than existing dedicated IF amplifiers. At lower gains (G = +2), popular for video line driving, the OPA695 offers 1.4GHz bandwidth with 2500V/usec slew rate, covering the highest speed video requirements.
“The OPA695 establishes a new performance level for wideband current feedback amplifiers. No other competitive device can match the bandwidth at a gain of +2, nor hold a high bandwidth to higher gains as well as the OPA695,” said Michael Steffes, strategic marketing manager for TI’s high-speed signal processing group. “Wireless communication applications will benefit from this low power, low cost, high dynamic range IF amplifier, while high-resolution RGB applications will enjoy exceptional pulse fidelity through the highest pixel update rates.”
The low 12.9mA supply current is precisely trimmed at +25C. This trim, along with low quiescent current shift over a wide temperature range, gives low system power over temperature. Fully specified over both the commercial (0°C to +70°C) and industrial temperature (-40°C to +85°C) ranges, the OPA695 shows minimal drop-off in performance at the temperature extremes. Using the optional disable control pin, the OPA695 supply current may be further reduced to less than 170uA. This power-saving feature, along with exceptional single +5V operation and ultra-small SOT23-6 packaging, will be attractive to wideband amplifier requirements in portable applications.
Additional features include low input voltage noise (1.8nV/rtHz), high 3rd-order intercept (>30dBm through 120MHz), high output swing (+/-4.2V on +/-5V supply) and instrumentation level dG/dP (0.04%/0.01°) for composite video applications.
Available Today
The OPA695 is packaged in both an SO-8 and SOT23-6 in industry standard pinouts. The OPA695ID (SO-8 package) is available now from TI and its authorized distributors. The device is priced from $1.35 in 1,000 piece quantities (suggested resale pricing). The OPA695IDBV (SOT23-6 package) will be available in February 2004.
Texas Instruments Incorporated provides innovative DSP and analog technologies to meet our customers' real world signal processing requirements. In addition to Semiconductor, the company's businesses include Sensors & Controls, and Educational & Productivity Solutions. TI is headquartered in Dallas, Texas, and has manufacturing, design or sales operations in more than 25 countries.
Texas Instruments is traded on the New York Stock Exchange under the symbol TXN. More information is located on the World Wide Web at www.ti.com.
About the TI Developer Conference
The TI Developer Conference (TIDC), scheduled for February 18-20, 2004, will focus on learning through peer-to-peer, hands-on interaction with the latest technological advances in the high-performance analog and digital signal processing areas of video, imaging, control, telecom, audio and security. It will also contain partner-specific sessions for university and third party attendees. Online registration for the TI Developer Conference is now available, with an early registration discount of $500 off offered through January 16, 2004. For more information on the conference, specific sessions or to register, please visit www.ti.com/tidc04mr.
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