Date: Friday, 21-Nov-97 05:03:01 GMT Server: WebSite/1.0 Content-type: text/html Last-modified: Friday, 01-Dec-95 01:01:48 GMT Content-length: 4355
MILPITAS, Calif., November 30, 1995 -- A pair of new, low-power, high-bandwidth transmission op amps designed to drive signals down twisted pair lines with minimal distortion are now available in sample quantities from élantec Semiconductor, Inc. (NASDAQ: ELNT).
Élantec's new EL2140 and EL2141 differential twisted pair drivers provide 150 MHz 3dB bandwidth and consume as little as 11 mA while delivering an output current of at least 50 mA for short-distance signaling in applications such as twisted pair line drivers, differential line drivers, and in VGA over twisted pair. The low power consumption and high output current specifications provide optimal price and performance for these applications; competing differential pair drivers generally consume more than 35 mA of quiescent current, according to Ralph Granchelli, vice president of marketing.
The new drivers also can be used in any line driving application where common mode injection is likely, and they are ideal for transmission of ADSL/HDSL, which requires very low distortion amplification. The input signal can be in either single-ended or differential form. Output is always in differential form.
Differential input range for the two new drivers is ± 2.3V, and basic slew rate is 800 V/µ s. Minimum output current is 50mA. Both ICs operate on ± 5V supplies or single supply.
Output common mode level is set by the reference pin, which has a 3dB bandwidth greater than 100 MHz. The reference pin is generally grounded but can be tied to any voltage reference. The EL2140 comes with a fixed gain of 2; on the EL2141, two feedback inputs allow the user to set the device gain.
"The EL2140 and EL2141 drive twisted pair signals at higher bandwidths with lower power consumption than any competing drivers, which makes them price/performance leaders for short distance computer-to-computer or computer-to-peripheral applications," said Granchelli. "Our design team has developed them specifically to provide reduced distortion when transmitting ADSL/HDSL signals, and to be flexible enough so users can adjust the gain if they want to boost the power applied."
Granchelli added that the new drivers also supply a lower-end complement to élantec Semiconductor's EL1501 Subscriber Line Interface (SLIDE) family of op amps, which were introduced earlier this year.
The EL2140 and EL2141 are available now in 8-pin SOICs, and pricing
begins at $2.79.
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For Further Information: phone: (408) 945-1323 ext. 303 e-mail: info@elantec.com