AD8641 Datasheet

• Low Supply Current: 250 µA max
• Very Low Input Bias Current: 1 pA max
• Low Offset Voltage: 750 µV max
• Single-supply Operation: 5 V to 26 V
• Dual-supply Operation: ±2.5 V to ±13 V
• Rail-to-rail Output
• Unity Gain Stable
• No Phase Reversal
• SC70 Package

• Line-/battery-powered instruments
• Photodiode amplifiers
• Precision current sensing
• Medical instrumentation
• Industrial controls
• Precision filters
• Portable audio
• ATE

The AD8641 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and rail-to-rail at the output enables designers to buffer CMOS DACs, ASICs, and other wide output swing devices in single-supply systems. The outputs remain stable with capacitive loads of more than 500 pF.

The AD8641 are suitable for applications utilizing multichannel boards that require low power to manage heat. Other applications include photodiodes, ATE reference level drivers, battery management, and industrial controls.

The AD8641 are fully specified over the extended industrial temperature range of –40°C to +125°C. The AD8641 is available in 5-lead SC70 and 8-lead SOIC lead-free packages.