OPA340UA/2K5 Audio Power Amplifier IC Op Amps Single-Supply Rail-to-Rail

OPA340UA/2K5 Audio Power Amplifier IC Op Amps Single-Supply Rail-to-Rail

1 Features

• Rail-to-Rail Input

• Rail-to-Rail Output (Within 1 mV)

• MicroSize Packages

• Wide Bandwidth: 5.5 MHz

• High Slew Rate: 6 V/μs

• Low THD + Noise: 0.0007% (f = 1 kHz)

• Low Quiescent Current: 750 μA/Channel

• Single, Dual, and Quad Versions

   

2 Applications

• Driving A/D Converters

• PCMCIA Cards

• Data Acquisition

• Process Control

• Audio Processing

• Communications

• Active Filters

• Test Equipment

   

3 Description

The OPA340 series rail-to-rail CMOS operational amplifiers are optimized for low-voltage, single-supply operation. Rail-to-rail input and output and high- speed operation make them ideal for driving sampling analog-to-digital (A/D) converters. They are also well- suited for general purpose and audio applications as well as providing I/V conversion at the output of digital-to-analog (D/A) converters. Single, dual, and quad versions have identical specifications for design flexibility.

The OPA340 series operate on a single supply as low as 2.5 V with an input common-mode voltage range that extends 500 mV below ground and 500 mV above the positive supply. Output voltage swing is to within 1 mV of the supply rails with a 100-kΩ load. These devices offer excellent dynamic response

(BW = 5.5 MHz, SR = 6 V/μs), yet quiescent current is only 750 A. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.

The single (OPA340) packages are the tiny 5-pin SOT-23 surface mount, 8-pin SOIC surface mount, and 8-pin DIP. The dual (OPA2340) comes in the miniature 8-pin VSSOP surface mount, 8-pin SOIC surface mount, and 8-pin PDIP packages. The quad (OPA4340) packages are the space-saving 16-pin SSOP surface mount and 14-pin SOIC surface mount. All are specified from –40°C to 85°C and operate from –55°C to 125°C. A SPICE macromodel is available for design analysis.

Device Information