Dual Single-Supply Operational Amplifiers MicroAmplifier™ Series

The OPAx237 op amp family is one of Texas

Instruments’ MicroAmplifier series of miniature products. In addition to small size, these

devices feature low offset voltage, low quiescent current, low bias current, and a wide

supply range. Single, and dual versions have identical specifications for maximum design

flexibility. These devices are designed for single-supply, battery-operated, and

space-limited applications, such as PCMCIA cards and other portable instruments.

The OPAx237

series op amps operate from either single or dual supplies. When operated from a single

supply, the input common-mode range extends below ground and the output can swing to within

10mV of ground. Dual and quad designs feature completely independent circuitry for lowest

crosstalk and freedom from interaction.

Single, dual, and quad versions are offered

in space-saving surface-mount packages. The single version is available in the

ultra-miniature 5-lead SOT23-5 and SOIC-8 surface-mount packages. The dual version comes in

miniature VSSOP-8 and SO-8 surface-mount packages. The quad version is obsolete. The VSSOP-8

has the same lead count as a the SO-8, but at half the size. The SOT23-5 is even smaller, at

one-fourth the size of an SOIC-8. All are specified for –40°C to +85°C operation. A

macromodel is available for design analysis.