Overview
The AD824AR-14-3V, produced by Analog Devices Inc., is a quad, FET input, single supply operational amplifier featuring rail-to-rail outputs. This amplifier is designed for low voltage applications where low input current is a primary consideration. It operates from a single supply of 3 V to 30 V or dual supplies up to ±15 V, making it versatile for various applications. The AD824 is fabricated on Analog Devices' complementary bipolar process, ensuring high accuracy and low noise performance, which is particularly beneficial in battery-powered medical equipment and other precision applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | VS | 3 V | - | 30 V / ±15 V | V |
| Input Bias Current | IB | 2 pA | 12 pA | 4000 pA | pA |
| Input Offset Voltage | VOS | 0.2 mV | 1.0 mV | 1.5 mV | mV |
| Common-Mode Rejection Ratio | CMRR | 60 dB | 74 dB | 80 dB | dB |
| Slew Rate | SR | - | 2 V/μs | - | V/μs |
| Bandwidth | GBP | - | 2 MHz | - | MHz |
| Output Voltage High | VOH | 2.975 V | - | 2.988 V | V |
| Output Voltage Low | VOL | 15 mV | - | 25 mV | mV |
| Operating Temperature | - | -40°C | - | 85°C | °C |
Key Features
- Single supply operation from 3 V to 30 V or dual supplies up to ±15 V.
- Very low input bias current of 2 pA, minimizing offset errors caused by high unbalanced source impedances.
- Rail-to-rail output swing, allowing the output voltage to swing within 15 mV of the supplies.
- Low supply current per amplifier: 500 μA.
- Wide bandwidth of 2 MHz and a slew rate of 2 V/μs.
- No phase reversal and safe input voltage range beyond the negative and positive supplies without latch-up.
- Capacitive loads up to 350 pF can be handled without oscillation.
- Precision and low noise performance, ideal for battery-powered medical equipment and high impedance transducer amplifiers.
Applications
- Photo diode preamplifiers.
- Battery-powered instrumentation.
- Power supply control and protection.
- Medical instrumentation, including portable medical equipment.
- Remote sensors.
- Low voltage strain gage amplifiers.
- DAC output amplifier.
Q & A
- What is the supply voltage range for the AD824AR-14-3V?
The AD824AR-14-3V operates from a single supply of 3 V to 30 V or dual supplies up to ±15 V.
- What is the input bias current of the AD824AR-14-3V?
The input bias current is very low, typically 2 pA.
- Does the AD824AR-14-3V have rail-to-rail output swing?
- What is the bandwidth of the AD824AR-14-3V?
The bandwidth is 2 MHz.
- Can the AD824AR-14-3V handle capacitive loads?
- What are some common applications of the AD824AR-14-3V?
- What is the operating temperature range of the AD824AR-14-3V?
- What is the slew rate of the AD824AR-14-3V?
- Does the AD824AR-14-3V have phase reversal or latch-up issues?
- What is the common-mode rejection ratio (CMRR) of the AD824AR-14-3V?
