Description

The ADA4505-1ARJZ is an instrumentation operational amplifier designed for low power and wide range applications. It is ideal for the dc gain and buffering of sensor front ends or high impedance input sources used in wireless or remote sensors or transmitters. This electronic component has a micropower of 22 μA, a low input bias current of 20 pA, and a gain bandwidth product of 240 kHz. It can operate under single-supply (2.7 V to 18 V) or dual-supply (±1.35 V to ±9 V) operations.

Specifications and features

• Micropower at high voltage: 22 μA maximum
• Low input bias current: 20 pA maximum
• Gain bandwidth product: 240 kHz
• Slew rate: 80 V/ms
• Large signal voltage gain: 110 dB minimum
• Single-supply operation: 2.7 V to 18 V
• Dual-supply operation: ±1.35 V to ±9 V
• Unity-gain stable

Application Scenarios

• Portable medical equipment
• Remote sensors
• Transimpedance amplifiers
• Current monitors
• 4 mA to 20 mA loop drivers
• Buffer/level shifting

Comparison

• Low power consumption
• Multiple operating supply voltage options
• Wide operating voltage range
• Large signal voltage gain
• Rail-to-rail input/output

• The gain bandwidth product is relatively low compared to similar models
• Not suitable for applications with high-frequency signals