Overview
The ADA4805-1ARJZ-R2, produced by Analog Devices Inc., is a high-speed voltage feedback operational amplifier known for its exceptionally low quiescent current and high performance characteristics. This amplifier is part of the ADA4805-1 series and is designed to be highly efficient, making it ideal for low-power, high-resolution data conversion systems. It features rail-to-rail output, low input offset voltage, and high bandwidth, making it suitable for a variety of precision and high-speed applications.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | - | - | 125 | µV |
| Input Offset Voltage Drift | - | 0.2 | 1.5 | µV/°C |
| Quiescent Current per Amplifier | 570 | 625 | - | µA |
| Bandwidth (-3 dB) | - | 105 | - | MHz |
| Slew Rate | - | 160 | - | V/µs |
| Settling Time to 0.1% | - | 35 | - | ns |
| Input Common-Mode Range | -VS - 0.1 V | - | +VS - 1 V | - |
| Noise Voltage at 100 kHz | - | 5.9 | - | nV/√Hz |
| Noise Current at 100 kHz | - | 0.6 | - | pA/√Hz |
| Input Bias Current | - | 470 | - | nA |
| Power Supply Range | 2.7 | - | 10 | V |
| Shutdown Current | 7.4 | - | 12 | µA |
Key Features
- Low input offset voltage: 125 µV (maximum)
- Low input offset voltage drift: 0.2 µV/°C (typical), 1.5 µV/°C (maximum)
- Ultralow supply current: 500 µA per amplifier
- High speed performance: 105 MHz bandwidth, 160 V/µs slew rate, and 35 ns settling time to 0.1%
- Rail-to-rail outputs with a wide input common-mode range
- Low noise: 5.9 nV/√Hz at 100 kHz, 0.6 pA/√Hz at 100 kHz
- Low distortion: −102 dBc/−126 dBc HD2/HD3 at 100 kHz
- Dynamic power scaling with a shutdown pin for further power reduction
- Fast turn-on time of 3 µs in shutdown mode
- Available in small packaging options: 6-lead SC70, 6-lead SOT-23, and 8-lead MSOP
Applications
- High resolution, high precision analog-to-digital converter (ADC) drivers
- Battery-powered instrumentation
- Micropower active filters
- Portable point of sales terminals
- Active RFID readers
- Photo multipliers
- ADC reference buffers
Q & A
- What is the typical quiescent current of the ADA4805-1ARJZ-R2?
The typical quiescent current is 625 µA per amplifier.
- What is the bandwidth of the ADA4805-1ARJZ-R2 at a gain of +1?
The bandwidth is 105 MHz at a gain of +1.
- What is the slew rate of the ADA4805-1ARJZ-R2?
The slew rate is 160 V/µs.
- What is the input offset voltage of the ADA4805-1ARJZ-R2?
The maximum input offset voltage is 125 µV.
- What is the noise voltage at 100 kHz for the ADA4805-1ARJZ-R2?
The noise voltage at 100 kHz is 5.9 nV/√Hz.
- What are the typical packaging options for the ADA4805-1ARJZ-R2?
The typical packaging options include 6-lead SC70, 6-lead SOT-23, and 8-lead MSOP.
- What is the shutdown current of the ADA4805-1ARJZ-R2?
The shutdown current is between 7.4 µA and 12 µA.
- What is the turn-on time in shutdown mode for the ADA4805-1ARJZ-R2?
The turn-on time in shutdown mode is 3 µs.
- What are some common applications of the ADA4805-1ARJZ-R2?
Common applications include high resolution ADC drivers, battery-powered instrumentation, micropower active filters, and more.
- What is the operating temperature range of the ADA4805-1ARJZ-R2?
The operating temperature range is from −40°C to +125°C.
