Differential Amp Pairs With High-Res ADCs

March 1, 2003
Introduced as the industry's first single-chip differential amplifier capable of driving 14-bit a/d converters at 70 MHz, the AD8351 supports 10-bit distortion performance at speeds up to 240 MHz. These performance levels are said to be accomplished

Introduced as the industry's first single-chip differential amplifier capable of driving 14-bit a/d converters at 70 MHz, the AD8351 supports 10-bit distortion performance at speeds up to 240 MHz. These performance levels are said to be accomplished via the company's proprietary eXtra Fast complementary bipolar and silicon-on-insulator manufacturing process. Users can adjust the common-mode voltage and set the gain from 0 dB to 26 dB, voltage gains from 1 through 20, via a single resistor. The device provides a bandwidth of 2.2 GHz with a gain of 12 dB. Noise spectral density is specified as 2.2 nV/rt-Hz, second and third order harmonic distortion as -79/-81 dBc at 70 MHz, and slew rate as 11 kV/µs. The amplifier operates on a 3V or 5V power supply and draws 27 mA of quiescent current. Operating over a temperature range from -40°C to +85°C, the device is specified at the common IF frequencies of 10, 70, 140, and 240 MHz. Available in a 10-pin microSOIC package, price is $3.69/1,000. ANALOG DEVICES, INC., Wilmington, MA. (800) 262-5643.

Company: ANALOG DEVICES, INC.

Product URL: Click here for more information

About the Author

Staff

Articles, galleries, and recent work by members of Electronic Design's editorial staff.

Sponsored Recommendations

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!