High-voltage op amp offers low noise, high precision

Henri Arnold

EE Times Europe (09/04/2009 5:52 AM ET)

Created on Intersil’s proprietary precision bipolar process technology, ISL28127 offers best-in-class performance for instrumentation, industrial and data acquisition

Intersil’s ISL28127 is a 40V low-noise bipolar precision operational amplifier that operates with 20 percent lower noise and consumes 30 percent less power than competing devices.

The device offers outstanding low-frequency voltage noise performance of 3.0nV/?Hz @ 10Hz, and excellent DC precision with 70mV max offset voltage and 10nA max input bias current. It also features superb offset voltage drift performance of 0.5mV/ degree C max, and is unity-gain stable over the full -40 to +125 degree C temperature range. The ISL28127 exhibits a wide operating supply voltage range of 4.5V to 40V and a gain bandwidth of 10MHz.

These specifications make the ISL28127 ideal for laboratory instrumentation, automated test equipment, power line monitors, weight measurement systems, and environmental analyzers that require low DC noise. The low distortion and gain accuracy also make the ISL28127 ideal for low-noise preamps, loop filters, strain gauge sensors and precision power sources.

Key advantages of ISL28127 include:

Ultra-low noise performance to achieve low noise gain error and high gain accuracy for 12-bit to 24-bit signal front-end applications.
High DC precision for 12-bit to 24-bit processing over the extended temperature range (low offset drift).
Simplified design-in, due to the versatile wide voltage operating range that provides extended dynamic range and full-scale input and output.
High ESD protection (4kV HBM) reduces in-field failures for industrial applications such as data acquisition and process control.

Pricing and Availability

Pricing for the ISL28127 starts at $1.05 each in 1,000-piece quantities in SOIC 8-lead packages.

Intersil SA, Sandringham House, 110 Sandringham Avenue, Harlow, Essex, CM19 5QA
Tel: +44 (0)1279 630922
Fax: +44 (0)1279 630939
E-mail: europe@intersil.com
Web: http://www.intersil.com

About Intersil

Intersil Corporation is a leader in the design and manufacture of high-performance analogue and mixed signal semiconductors. The Company’s products address some of the industry’s fastest growing markets, such as, flat panel displays, cell phones, other handheld systems, and notebooks. Intersil’s product families address power management functions and analogue signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators, Zilker Labs Digital Power ICs and power MOSFET drivers; optical storage laser diode drivers; DSL line drivers; D2Audio products; video and high-performance operational amplifiers; high-speed data converters; interface ICs; analogue switches and multiplexers; crosspoint switches; voice-over-IP devices; and ICs for military, space and radiation-hardened applications.