Overview
The AD8694ARUZ from Analog Devices Inc. is a low-cost, quad-channel, rail-to-rail output, single-supply operational amplifier. It is designed to offer low offset and input voltages, low current noise, and a wide signal bandwidth. This combination of performance features makes the AD8694ARUZ suitable for a wide variety of applications, including filters, integrators, photodiode amplifiers, and high impedance sensors. The amplifier is also beneficial in audio and other AC applications due to its wide bandwidth and low distortion.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Number of Channels | 4 | |
| Offset Voltage | 0.4 mV | mV |
| Offset Voltage Drift | 1.3 µV/°C | µV/°C |
| Input Bias Current | 0.2 pA | pA |
| Voltage Noise Density | 8 nV/√Hz | nV/√Hz |
| Total Harmonic Distortion + Noise | 0.003% at (G = 1, RL = 600 ohm, f = 1kHz, VO = 250mV p-p) | % |
| Gain Bandwidth Product | 10 MHz | MHz |
| Slew Rate | 5 V/µs | V/µs |
| Single-Supply Operation | 2.7 V to 6 V | V |
| Supply Current per Amplifier | 0.85 mA | mA |
| Operating Temperature | −40°C to +125°C | °C |
| Packaging Style | 14-lead TSSOP |
Key Features
- Low offset voltage: 0.4 mV typical
- Low offset voltage drift: 1.3 µV/°C typical
- Very low input bias currents: 0.2 pA typical
- Low noise: 8 nV/√Hz typical voltage noise density
- Low distortion: 0.003% total harmonic distortion + noise at specific conditions
- Wide bandwidth: 10 MHz gain bandwidth product
- Unity-gain stable
- Single-supply operation: 2.7 V to 6 V
- Rail-to-rail output
- High slew rate: 5 V/µs
Applications
- Power amplifier (PA) controls
- Laser diode control loops
- Portable and loop-powered instrumentation
- Audio amplification for portable devices
- ASIC input and output amplifiers
- Battery-powered instrumentation
- Medical instruments
- Multipole filters
- Sensors
- Photodiode amplification
Q & A
- What is the typical offset voltage of the AD8694ARUZ?
The typical offset voltage is 0.4 mV.
- What is the input bias current of the AD8694ARUZ?
The input bias current is 0.2 pA typical.
- What is the gain bandwidth product of the AD8694ARUZ?
The gain bandwidth product is 10 MHz.
- What is the operating temperature range of the AD8694ARUZ?
The operating temperature range is −40°C to +125°C.
- What is the typical supply current per amplifier for the AD8694ARUZ?
The typical supply current per amplifier is 0.85 mA.
- What are some common applications of the AD8694ARUZ?
Common applications include power amplifier controls, laser diode control loops, portable and loop-powered instrumentation, and audio amplification for portable devices.
- What is the packaging style of the AD8694ARUZ?
The packaging style is a 14-lead TSSOP.
- What is the slew rate of the AD8694ARUZ?
The slew rate is 5 V/µs.
- Is the AD8694ARUZ suitable for audio applications?
Yes, it is suitable for audio applications due to its wide bandwidth and low distortion.
- What is the voltage noise density of the AD8694ARUZ?
The voltage noise density is 8 nV/√Hz typical.
