Overview
The AD8504ARUZ is a micropower CMOS operational amplifier produced by Analog Devices Inc. This device is part of the AD8502/AD8504 family, known for its ultra-low power consumption and high performance in various applications. The AD8504ARUZ is particularly suited for use in battery-powered devices, remote sensors, and other low-power systems due to its minimal supply current and robust operational characteristics.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | 0 V < VCM < 5 V | 0.5 | 3 | 5.5 | mV |
| Offset Voltage Drift | ΔVOS/ΔT | −40°C < TA < +85°C | 7 | μV/°C | ||
| Input Bias Current | IB | 0 V < VCM < 5 V | 1 | 10 | 100 | pA |
| Output Voltage Low | VOL | RLOAD = 100 kΩ to VS | 1.6 | 5 | 7 | mV |
| Short-Circuit Current | ISC | VOUT = GND | ±5 | mA | ||
| Power Supply Rejection Ratio | PSRR | 1.8 V < VS < 5 V | 85 | 105 | 66 | dB |
| Supply Current/Amplifier | ISY | VO = VS/2 | 0.75 | 1 | 1.5 | μA |
| Slew Rate | SR | RLOAD = 1 MΩ | 0.004 | V/μs | ||
| Gain Bandwidth Product | GBP | 7 | kHz | |||
| Phase Margin | ØO | 60 | Degrees |
Key Features
- Ultra-Low Power Consumption: Maximum supply current of 1 μA per amplifier, making it ideal for battery-powered devices and low-power systems.
- Rail-to-Rail Input and Output: Allows the amplifier to operate with input and output signals that range from the negative to the positive supply rail.
- No Phase Reversal: Ensures stable operation without phase reversal, even when the input signal exceeds the supply rails.
- Unity Gain Stable: The amplifier is stable when used in a unity gain configuration.
- Single-Supply or Dual-Supply Operation: Can operate with either a single supply or dual supplies, offering flexibility in design.
Applications
- Portable Equipment: Ideal for use in handheld devices and other portable equipment due to its low power consumption.
- Remote Sensors: Suitable for remote sensing applications where power efficiency is crucial.
- Low Power Filters: Can be used in low-power filter circuits.
- Threshold Detectors: Useful in threshold detection circuits.
- Current Sensing: Can be employed in current sensing applications.
Q & A
- What is the maximum supply current of the AD8504ARUZ? The maximum supply current is 1 μA per amplifier.
- Does the AD8504ARUZ support rail-to-rail input and output? Yes, it supports rail-to-rail input and output.
- Is the AD8504ARUZ stable in unity gain configuration? Yes, it is unity gain stable.
- What are the operating temperature ranges for the AD8504ARUZ? The operating temperature range is −40°C to +125°C.
- What is the typical slew rate of the AD8504ARUZ? The typical slew rate is 0.004 V/μs.
- What is the gain bandwidth product of the AD8504ARUZ? The gain bandwidth product is 7 kHz.
- Can the AD8504ARUZ be used in single-supply or dual-supply configurations? Yes, it can be used in both single-supply and dual-supply configurations.
- What is the phase margin of the AD8504ARUZ? The phase margin is 60 degrees.
- What are some typical applications of the AD8504ARUZ? Typical applications include portable equipment, remote sensors, low power filters, threshold detectors, and current sensing.
- What is the power supply rejection ratio (PSRR) of the AD8504ARUZ? The PSRR is 85 dB to 105 dB for supply voltages between 1.8 V and 5 V.
