LT6231 Datasheet

• Low Noise Voltage: 1.1nV/√Hz
• Low Supply Current: 3.5mA/Amp Max
• Low Offset Voltage: 350μV Max
• Wide Supply Range: 3V to 12.6V
• Output Swings Rail-to-Rail
• Common Mode Rejection Ratio: 115dB Typ
• Output Current: 30mA
• Operating Temperature Range: –40°C to 85°C
• Dual LT6231 in 8-Pin SO and Tiny DFN Packages

• Ultrasound Amplifiers
• Low Noise, Low Power Signal Processing
• Active Filters
• Driving A/D Converters
• Rail-to-Rail Buffer Amplifiers

The LT6231 are dual low noise, rail-to-rail output unity-gain stable op amps that feature 1.1nV/√Hz noise voltage and draw only 3.5mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 215MHz gain bandwidth product, a 70V/μs slew rate and are optimized for low supply voltage signal conditioning systems. 

The amplifier family has an output that swings within 50mV of either supply rail to maximize the signal dynamic range in low supply applications and is specified on 3.3V, 5V and ±5V supplies. The e_n • √I_SUPPLY product of 1.9 per amplifier is among the most noise efficient of any op amp.

The LT6231 dual is available in the 8-pin SO package with standard pinouts. For compact layouts, the dual is also available in a tiny dual fine pitch leadless package (DFN).