Texas Instruments’ latest operational amplifier provides industry’s lowest noise, distortion and quiescent current

Dual-channel, bipolar-input amplifier delivers leading sound in pro audio applications

Bangalore (Dec. 14, 2009) – Texas Instruments Incorporated (TI) introduces the OPA653 and OPA659 JFET-input operational amplifiers, which provide a slew rate of up to 2675 V/us, three times faster than that of the nearest competitor, resulting in improved pulse response. These amplifiers combine a widebandvoltage feedback amplifier with a high-impedance JFET-input stage and meet the requirements for frequency domain and FFT analysis due to their large signal bandwidth and low total harmonic distortion. See more product details at www.ti.com/opa659-pr.

Key features and benefits of the OPA653 and OPA659:

• Best-in-class slew rate and low distortion contribute to enhanced signal integrity for time-domain and pulse-oriented applications.
• The OPA653 is a fixed gain (+2 V/V) JFET-input amplifier with a slew rate of 2675 V/µs and 475 MHz of large signal bandwidth (2 Vp-p).
• The OPA659 is a unity gain stable JFET-input amplifier with a slew rate of 2550 V/µs and 575 MHz of large signal bandwidth (2 Vp-p).
• Third order harmonic distortion (HD3) of -60 dBc (OPA659) and -66 dBc (OPA653) at 100 MHz ensures superior high-bandwidth linearity.
• Fast settling time (8 ns) and overdrive recovery (8 ns) enable excellent pulse response.
• The OPA653’s ultra-low overshoot and ringing are desirable in low-noise, wideband, high input impedance applications such as data acquisition cards, high-impedance probes and oscilloscope front ends.
• The OPA659’s 350-MHz high gain bandwidth optimizes machine vision applications, such as broadband photodiode transimpedance amplifiers used in wafer inspection equipment.
• Power supply voltage range of +/-3.5 V to +/- 6.4 V maximizes design flexibility.
• These devices drive TI’s 12- and 14-bit, 400-MSPS and 500-MSPS analog-to-digital converters including the ADS5474, ADS5463 and ADS54RF63.

Find out more about TI’s amplifiers at the links below:

• Order OPA653 and OPA659 evaluation modules and samples: www.ti.com/opa659-pr
• View TI’s amplifier portfolio and download selection guide: www.ti.com/amplifiers-pr
• Ask questions and share knowledge in the high-speed amplifier forum in TI’s E2E online community: www.ti.com/hsampforum-pr

About Texas Instruments:

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through design, sales and manufacturing operations in more than 30 countries. For more information, go to www.ti.com.

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