Dual 100MHz, Rail-to-Rail Input and Output, Ultralow 1.9nV√ Noise, Low Power Op Amps

The LT6202/LT6203/LT6204 are single/dual/quad low noise, rail-to-rail input and output unity gain stable op amps that feature 1.9nV/√Hz noise voltage and draw only 2.5mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 100MHz gain bandwidth product, a 25V/μs slew rate, and are optimized for low supply signal conditioning systems.

These amplifiers maintain their performance for supplies from 2.5V to 12.6V and are specified at 3V, 5V and ±5V supplies. Harmonic distortion is less than – 80dBc at 1MHz making these amplifiers suitable in low power data acquisition systems.

The LT6202 is available in the 5-pin TSOT-23 and the 8-pin SO, while the LT6203 comes in 8-pin SO and MSOP packages with standard op amp pinouts. For compact layouts the LT6203 is also available in a tiny fine line leadless package (DFN), while the quad LT6204 is available in the 16-pin SSOP and 14-pin SO packages. These devices can be used as plug-in replacements for many op amps to improve input/output range and noise performance.

Applications

* Low Noise, Low Power Signal Processing

* Active Filters

* Rail-to-Rail Buffer Amplifiers

* Driving A/D Converters

* DSL Receivers

* Battery Powered/Battery Backed Equipment

* Low Noise Voltage: 1.9nV/√Hz (100kHz)

* Low Supply Current: 3mA/Amp Max

* Gain Bandwidth Product: 100MHz

* Dual LT6203 in Tiny DFN Package

* Low Distortion: –80dB at 1MHz

* Low Offset Voltage: 500μV Max

* Wide Supply Range: 2.5V to 12.6V

* Input Common Mode Range Includes Both Rails

* Output Swings Rail-to-Rail

* Common Mode Rejection Ratio 90dB Typ

* Unity Gain Stable

* Low Noise Current: 1.1pA/√Hz

* Output Current: 30mA Min

* Operating Temperature Range –40°C to 85°C

* Low Profile (1mm) SOT-23 (ThinSOT™) Package