ADI ADA4805-2ARMZ

High-speed voltage feedback, rail-to-rail output amplifiers with an ultralow quiescent current of 500 μA, ideal for low-power, high-resolution data conversion systems. Despite their low power consumption, these devices deliver excellent overall performance. They feature 105 MHz high bandwidth at +1 gain, 160 V/μs high slew rate, and a 125 μV maximum low input offset voltage. A shutdown pin allows the quiescent supply current to be further reduced to 2.9 μA. For power-sensitive applications, shutdown mode offers an ultrafast turn-on time of 3 μs. It can disable the amplifier between ADC samples, allowing users to dynamically manage amplifier power consumption. ADI's proprietary eXtra Fast Complementary Bipolar (XFCB) process enables low voltage and current noise (5.9 nV/√Hz, 0.6 pA/√Hz). Supporting a wide supply voltage range of ±1.5 V to ±5 V as well as 3 V and 5 V single-supply operation, these devices are ideal for high-speed, low-power instrumentation. Available in 6-pin SOT-23, 6-pin SC70, and 8-pin MSOP packages. These amplifiers are rated for an operating temperature range of -40°C to +125°C industrial temperature range.

• Low input offset voltage: 125 μV (max)
• Low input offset voltage drift: 0.2 μV/°C (typ), 1.5 μV/°C (max)
• Ultra-low supply current: 500 μA per amplifier
• Rated supply voltage: Vs = 3 V, 5 V, ±V
• High-speed performance − 3 dB bandwidth: 105 MHz, slew rate: 160 V/μs, 0.7% settling time: 35 ns
• Rail-to-rail output
• Input common-mode range: −Vs − 0.1 V to +Vs − 1 V
• Low noise: 5.9 nV/√Hz (100 kHz); 0.6 pA/√Hz (100 kHz)
• Low distortion: −102 dBc/−126 dBc HD2/HD3 (100 kHz)
• Low input bias current: 470 nA (typ)
• Dynamic power scaling enable time: 3 μs (max, fully settled)
• Small packages: 6-pin SC70, 6-pin SOT-23, and 8-pin MSOP

• High-resolution, high-precision ADC driver
• Battery-powered instrumentation
• Micropower active filter
• Portable POS terminal
• Active RFID card reader
• Photomultiplier tube
• ADC reference voltage buffer