Rail-to-rail output op-amps for high dynamic range applications

Analog Devices LTC6226/LTC6227 Rail-to-Rail Output Op-Amps are extremely fast, low noise, unity-gain stable single/dual op-amps, with a gain-bandwidth product of 420MHz and a slew rate of 180V/μs. The low input-referred voltage noise of only 1nV/√Hz and low distortion of less than –90dBC for 4VP-P signals at 1MHz makes them excellent for applications that require high dynamic range and deal with extremely fast signals, such as driving A/D converters. The blend of low offset, low offset drift, high gain (139dB), and high CMRR (114dB) make these excellent devices for high dynamic range applications.

The device family sustains superior performance for supply voltages of 2.8V to 11.75V, and the devices are fully specified at supplies of 3V, 5V, and 10V (±5V). With an input range stretching to the negative rail and rail-to-rail output stage, the operational amplifier can support wide-swinging signals and true single-supply operation. For space-constrained applications, the amplifiers are offered in 2mm x 2mm DFN (single) and 3mm x 3mm DFN (dual) packages. The devices are also provided in 8-lead SOIC, TSOT-23, and MS8E. These amplifiers can be employed as replacements for many high-speed op-amps to improve speed, noise, and dynamic range.

Typical applications include optical electronics: fast AC-coupled transimpedance amplifiers, driving high dynamic range A/D converters, active filters, video amplifiers, snf low voltage low distortion amplification.