The LTC321B of single-channel amplifier provides input offset voltage correction for low positive offset (+0.5 to +3.0 mV) and low drift (1.5 µV/℃) through the use of proprietary techniques. Featuring rail-to-rail input and output swings, and low quiescent current (typical 90 µA) combined with a wide bandwidth of 1.2 MHz and very low noise (30nV/√Hz at 1 kHz) makes this family very attractive for a variety of battery-powered applications such as handsets, tablets, notebooks, and portable medical devices. The low input bias current supports these amplifiers to be used in applications with mega-ohm source impedances.

The robust design of the LTC321B amplifier provides ease-of-use to the circuit designer: unity-gain stability with capacitive loads of up to 500 pF, integrated RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electro-static discharge (ESD) protection (4-kV HBM). 

The LTC321B amplifier is optimized for operation at voltages as low as +1.8 V (± 0.9 V) and up to +5.5 V (± 2.75 V) at the temperature range of 0 ℃ to 70 ℃, and operation at voltages from +2.0 V (± 1.0 V) to +5.5 V (± 2.75 V) over the extended temperature range of -40 ℃ to +125 ℃.
The LTC321B is available in both SOT23-5 and SC70-5 packages
 

• 1.2 MHz GBW for Unity-Gain Stable
• Precision: +0.5 to +3.0 mV Positive Input Offset Voltage
• Low Noise: 30 nV/√Hz at 1 kHz
• Micro-Power: 90 μA Supply Current Per Amplifier
• Single 1.8 V to 5.5 V Supply Voltage Range at 0 ℃ to 70 ℃
• Rail-to-Rail Input and Output
• Internal RF/EMI Filter
• Extended Temperature Range: -40℃ to +125℃

• Battery-Powered Instruments:

• Wireless Charger
• Audio Outputs
• Sensor Signal Conditioning:

• Wireless Sensors: