OPA4340 Quad, single-supply, rail-to-rail, low power operational amplifier | TI.com

OPA4340 (ACTIVE) Quad, single-supply, rail-to-rail, low power operational amplifier



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.


  • 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


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Part number Order Number of channels (#) Total supply voltage (Min) (+5V=5, +/-5V=10) Total supply voltage (Max) (+5V=5, +/-5V=10) GBW (Typ) (MHz) Slew rate (Typ) (V/us) Rail-to-rail Vos (offset voltage @ 25 C) (Max) (mV) Offset drift (Typ) (uV/C) Iq per channel (Typ) (mA) Vn at 1 kHz (Typ) (nV/rtHz) CMRR (Typ) (dB) Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG) Input bias current (Max) (pA) Output current (Typ) (mA) Features Architecture
OPA4340 Order now 4     2.7     5.5     5.5     6     In
0.5     2.5     0.75     25     92     Catalog     -40 to 85     SOIC | 14
SSOP | 16    
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)
16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16)    
10     50         CMOS