OPA313IDCKR

The OPA313 series of single-channel, dual-channel, and quad-channel operational amplifiers represents a new generation of low-cost, general-purpose, micropower operational amplifiers. The combination of rail-to-rail input and output swing, low quiescent current (typically 50μA), 1MHz wide bandwidth, and extremely low noise (25nV/√Hz at 1kHz) makes this series highly attractive for a variety of battery-powered applications that require a good balance between cost and performance. The low input bias current supports the use of these operational amplifiers in applications with megohm-level source impedance. The robust design of the OPA313 devices makes it convenient for circuit designers: unity-gain stability with load capacitance up to 150pF, an integrated RF/EMI rejection filter, no phase reversal under overdrive conditions, and high electrostatic discharge (ESD) protection (4kV human body model (HBM)). These devices are optimized for low-voltage operation from +1.8V (±0.9V) up to +5.5V (±2.75V), and are rated for operation over the full extended temperature range of -40°C to +125°C at voltages of 1.8V, 3.3V, and 5V.

Applications

• Battery-powered instruments: consumer, industrial, medical, laptop, portable media player applications
• Sensor signal conditioning: loop-powered, laptop, portable media player applications
• Wireless sensors: residential security remote sensing, wireless instrumentation

Key features

• Low IQ: 50μA
• Wide supply voltage: 1.8V to 5.5V
• Low noise: 25nV/√Hz at 1kHz
• Gain bandwidth: 1MHz
• Low input bias current: 0.2pA
• Low offset voltage: 0.5mV
• Unity-gain stable
• Internal RF/EMI filter
• Extended temperature range: -40°C to +125°C