Overview
The AD8671ARZ from Analog Devices Inc. is a single, very high precision operational amplifier known for its exceptional performance characteristics. It features very low noise, very low offset voltage and drift, low input bias current, a 10 MHz bandwidth, and low power consumption. The amplifier is stable with capacitive loads of over 1000 pF and operates within a supply current of less than 3 mA per amplifier at 30 V. Its combination of ultralow noise, high precision, speed, and stability makes it unmatched in its class. The AD8671ARZ is available in an 8-lead SOIC-N package and operates over a temperature range of -40°C to +125°C.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 1 | |
| Bandwidth | 10 MHz | |
| Slew Rate | 4 V/µs | RL = 2 kΩ |
| Supply Voltage | ±5 V to ±15 V | |
| Supply Current per Amplifier | 3 mA typ | VO = 0 V, VS = ±5.0 V, VCM = 0 V, TA = 25°C |
| Offset Voltage | 20 µV to 75 µV | -40°C < TA < +125°C |
| Offset Voltage Drift | 0.3 µV/°C to 0.5 µV/°C | -40°C < TA < +125°C |
| Input Bias Current | -12 nA to +12 nA | +25°C < TA < +125°C |
| Input Resistance (Common Mode) | 3.5 GΩ | |
| Input Resistance (Differential Mode) | 15 MΩ | |
| Output Voltage High | +13.2 V to +13.8 V | RL = 2 kΩ, -40°C to +125°C |
| Output Voltage Low | -13.8 V to -13.2 V | RL = 2 kΩ, -40°C to +125°C |
| Output Current | ±20 mA | |
| Power Supply Rejection Ratio | 110 dB to 130 dB | VS = ±4 V to ±18 V |
| Temperature Range | -40°C to +125°C | |
| Package | 8-lead SOIC-N |
Key Features
- Very low noise and low offset voltage and drift, making it suitable for high precision applications.
- Low input bias current of up to 12 nA.
- High bandwidth of 10 MHz and a slew rate of 4 V/µs.
- Low power consumption with a supply current of less than 3 mA per amplifier at 30 V.
- Stable operation with capacitive loads of over 1000 pF.
- Dual-supply operation from ±5 V to ±15 V, unity-gain stable with no phase reversal.
- High open-loop gain and excellent power supply rejection ratio (PSRR) of 110 dB to 130 dB.
Applications
- High quality PLL filters and precision filters.
- Medical and analytical instrumentation.
- Precision power supply controls.
- Automatic Test Equipment (ATE) and data acquisition systems.
- Precision controls and professional quality audio applications.
- Filters for GPS and other sensor and control systems.
Q & A
- What is the bandwidth of the AD8671ARZ operational amplifier?
The bandwidth of the AD8671ARZ is 10 MHz.
- What is the typical supply current per amplifier for the AD8671ARZ?
The typical supply current per amplifier is less than 3 mA at 30 V.
- What is the offset voltage range for the AD8671ARZ?
The offset voltage range is from 20 µV to 75 µV over the temperature range of -40°C to +125°C.
- What is the slew rate of the AD8671ARZ?
The slew rate is 4 V/µs at a load resistance of 2 kΩ.
- What is the power supply rejection ratio (PSRR) of the AD8671ARZ?
The PSRR is between 110 dB to 130 dB for supply voltages from ±4 V to ±18 V.
- What are the typical applications of the AD8671ARZ?
Typical applications include high quality PLL filters, precision filters, medical and analytical instrumentation, precision power supply controls, ATE, data acquisition, and professional quality audio.
- What is the temperature range for the AD8671ARZ?
The temperature range is from -40°C to +125°C.
- What package types are available for the AD8671ARZ?
The AD8671ARZ is available in an 8-lead SOIC-N package.
- How stable is the AD8671ARZ with capacitive loads?
The AD8671ARZ is stable with capacitive loads of over 1000 pF.
- What is the input bias current of the AD8671ARZ?
The input bias current is up to 12 nA.
