Overview
The AD8512ARZ-REEL7, produced by Analog Devices Inc., is a dual-precision JFET operational amplifier. It is part of the AD8510/AD8512/AD8513 family, known for their low offset voltage, low input bias current, and low input voltage noise. These characteristics make the AD8512 particularly suitable for high-impedance sensor amplification, precise current measurements using shunts, and applications requiring high dc precision and low noise.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | - | - | 1 | 5 | mV |
| Offset Voltage Drift (B Grade) | - | 0.9 | - | 5 | μV/°C |
| Input Bias Current | - | - | 10 | 50 | pA |
| Input Voltage Noise Density | f = 1 kHz | 8.0 | 10 | - | nV/√Hz |
| Output Voltage High | RL = 10 kΩ | 4.1 | 4.3 | - | V |
| Output Voltage Low | RL = 10 kΩ, -40°C < TA < +125°C | -4.9 | -4.7 | - | V |
| Slew Rate | RL = 2 kΩ | - | 20 | - | V/μs |
| Gain Bandwidth Product | - | - | 8 | - | MHz |
| Settling Time to 0.1% | 0 V to 4 V step, G = +1 | - | 0.4 | - | μs |
| Power Supply Rejection Ratio | VS = ±4.5 V to ±18 V | 86 | 130 | - | dB |
| Supply Current/Amplifier | VO = 0 V | 2.0 | 2.3 | - | mA |
Key Features
- Low offset voltage and low input bias current, making it ideal for high-impedance sensor amplification and precise current measurements.
- Low input voltage noise and fast settling time, ensuring superior accuracy in applications such as medical instruments and automated test equipment.
- High stability with capacitive loads and no output phase reversal when input voltages exceed the maximum common-mode voltage range.
- Fast slew rate and high gain bandwidth product, suitable for high-performance filters.
- Excellent power supply rejection ratio and low supply current per amplifier.
Applications
- High-impedance sensor amplification
- Precise current measurements using shunts
- Medical instruments requiring high dc precision and low noise
- Automated test equipment
- High-performance filters
- Electronic measurement and instrumentation
Q & A
- What is the AD8512ARZ-REEL7 used for? The AD8512ARZ-REEL7 is a dual-precision JFET operational amplifier used in applications requiring low offset voltage, low input bias current, and low noise.
- What are the key specifications of the AD8512ARZ-REEL7? Key specifications include low offset voltage (1 mV), low input bias current (10 pA), low input voltage noise density (8 nV/√Hz at 1 kHz), and a fast slew rate (20 V/μs).
- Does the AD8512ARZ-REEL7 suffer from output phase reversal? No, the AD8512ARZ-REEL7 does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.
- What is the gain bandwidth product of the AD8512ARZ-REEL7? The gain bandwidth product is 8 MHz.
- How stable is the AD8512ARZ-REEL7 with capacitive loads? The AD8512ARZ-REEL7 is highly stable with capacitive loads.
- What is the power supply rejection ratio of the AD8512ARZ-REEL7? The power supply rejection ratio is 86 dB to 130 dB.
- What are typical applications of the AD8512ARZ-REEL7? Typical applications include high-impedance sensor amplification, precise current measurements, medical instruments, automated test equipment, and high-performance filters.
- What is the settling time of the AD8512ARZ-REEL7? The settling time to 0.1% is 0.4 μs for a 0 V to 4 V step with a gain of +1.
- How much current does the AD8512ARZ-REEL7 draw from the power supply? The supply current per amplifier is typically 2.0 mA to 2.3 mA.
- What is the operating temperature range of the AD8512ARZ-REEL7? The operating temperature range is -40°C to +125°C.
