OPA4140AID

The OPA140, OPA2140, and OPA4140 operational amplifier series are a range of low-power JFET-input amplifiers with excellent drift performance and low input bias current. With their rail-to-rail output swing and input range including V-, designers can take advantage of the low-noise characteristics of JFET amplifiers while also connecting to modern single-supply precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). The OPA140 can achieve an 11MHz unity-gain bandwidth and a 20V/μs slew rate while consuming only 1.8mA (typical) of quiescent current. It is powered by a single supply of 4.5V to 36V or dual supplies of ±2.25V to ±18V. All device versions are rated for an operating temperature range of -40°C to +125°C and can be used in the most challenging environments.

Applications

• Battery-powered instruments
• Industrial control
• Medical instrumentation
• Photodiode amplifiers
• Active filters
• Data acquisition systems
• Automated test systems

Key features

• Ultra-low temperature drift: 1μV/°C (max)
• Ultra-low offset: 120μV
• Low input bias current: 10pA (max)
• Ultra-low 1/f noise: 250nVPP, 0.1Hz to 10Hz
• Low noise: 5.1nV/√Hz
• Slew rate: 20V/μs
• Low supply current: 2mA (max)
• Input voltage range includes V- rail
• Single-supply operation: 4.5V to 36V
• Dual-supply operation: ±2.25V to ±18V
• No phase reversal
• Industry-standard SOIC, VSSOP, TSSOP, and SOT-23 packages