Overview
The ADA4805-2ARMZ-R7 is a dual, low-power, low-noise, rail-to-rail operational amplifier produced by Analog Devices Inc. This amplifier is designed for high-speed, low-power applications and is particularly suited for systems requiring high resolution and precision. It features an exceptionally low quiescent current of 500 µA per amplifier, making it ideal for battery-powered instrumentation, micropower active filters, and other power-sensitive applications.
Key Specifications
| Specification | Value |
|---|---|
| Part Number | ADA4805-2ARMZ-R7 |
| Manufacturer | Analog Devices Inc. |
| Package | 8-lead MSOP |
| Operating Temperature | -40°C to 125°C |
| Supply Voltage | 3 V, 5 V, ±1.5 V to ±5 V |
| Quiescent Current | 500 µA per amplifier |
| Slew Rate | 160 V/µs |
| -3 dB Bandwidth | 105 MHz |
| Input Offset Voltage | 125 µV (maximum) |
| Input Offset Voltage Drift | 0.2 µV/°C (typical), 1.5 µV/°C (maximum) |
| Input Bias Current | 470 nA (typical) |
| Output Current per Channel | 73 mA |
| Common Mode Rejection Ratio | 103 dB |
| Power Supply Rejection Ratio (PSRR) | 100 dB |
Key Features
- Low input offset voltage: 125 µV (maximum) and low input offset voltage drift of 0.2 µV/°C (typical).
- Ultralow supply current: 500 µA per amplifier, with a shutdown mode reducing the quiescent supply current to 2.9 µA.
- High speed performance with a -3 dB bandwidth of 105 MHz and a slew rate of 160 V/µs.
- Rail-to-rail outputs and input common-mode range from -VS - 0.1 V to +VS - 1 V.
- Low noise: 5.9 nV/√Hz at 100 kHz and 0.6 pA/√Hz at 100 kHz.
- Dynamic power scaling with a fast turn-on time of 3 µs (maximum) from shutdown to fully settled.
- Small packaging options including 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 and ADC reference buffers).
Q & A
- What is the part number of this operational amplifier?
The part number is ADA4805-2ARMZ-R7.
- Who is the manufacturer of the ADA4805-2ARMZ-R7?
The manufacturer is Analog Devices Inc..
- What is the package type of the ADA4805-2ARMZ-R7?
The package type is 8-lead MSOP.
- What is the operating temperature range of the ADA4805-2ARMZ-R7?
The operating temperature range is -40°C to 125°C.
- What are the supply voltage options for the ADA4805-2ARMZ-R7?
The supply voltage options include 3 V, 5 V, and ±1.5 V to ±5 V).
- What is the quiescent current of the ADA4805-2ARMZ-R7?
The quiescent current is 500 µA per amplifier).
- What is the slew rate of the ADA4805-2ARMZ-R7?
The slew rate is 160 V/µs).
- What is the -3 dB bandwidth of the ADA4805-2ARMZ-R7?
The -3 dB bandwidth is 105 MHz).
- What are some typical applications of the ADA4805-2ARMZ-R7?
Typical applications include high resolution ADC drivers, battery-powered instrumentation, micropower active filters, and more).
- Does the ADA4805-2ARMZ-R7 have a shutdown feature?
Yes, it has a shutdown feature that reduces the quiescent supply current to 2.9 µA and allows for fast turn-on times).
