Date: 29/04/2010

Low noise JFET input op amps by TI

Texas Instruments has introduced a family of JFET-input op amps featuring ultra-low noise and distortion .TI claims that the OPA1641, OPA1642 and OPA1644 with a quiescent current of 1.8 mA per channel consume 40% lower power, produce 15 percent lower noise (5 nV/root Hz) and distortion (0.00005% at 1 kHz) compared to competing devices. The op-amps support the multiple channels pro audio applications require, without increasing power consumption in high-performance audio circuits, such as broadcast studio equipment, analog and digital mixing consoles, and high-end A/V receivers.

These op amps operate from wide supply voltage range of +2.5 V to +18 V. The rail-to-rail output swing feature allow for increased headroom, which is critical for audio analog-to-digital converter (ADC) front ends and digital-to-analog converter (DAC) post filters, including TI's PCM42xx and PCM17xx devices.

Package: SO-8, SO-14 or TSSOP-14

Availability: Now
Price:
OPA1641: Each US$0.95 in 1K units.
OPA1642: Each US$1.45 in 1K units
OPA1644: Each US$1.95 in 1K units

To know more visit: http://www.ti.com