Overview
The AD797ARZ-REEL7 is a high-performance operational amplifier (op-amp) manufactured by Analog Devices Inc. This device is renowned for its ultralow distortion and ultralow noise characteristics, making it ideal for critical applications requiring precise signal amplification and processing.
The AD797 is particularly suited for buffering the inputs to Sigma-Delta (Σ-Δ) analog-to-digital converters (ADCs) and the outputs of high-resolution digital-to-analog converters (DACs), especially in applications such as seismic detection and spectrum analyzers.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices |
| Part Number | AD797ARZ-REEL7 |
| Package | SOIC-8 |
| Supply Voltage | ±4.5 V to ±18 V |
| Input Offset Voltage (Vos) | Max ±1.5 mV (25°C) |
| Input Bias Current (Ib) | Max 1 nA (25°C) |
| Input Noise Voltage (en) | Typ 0.9 nV/√Hz (1 kHz) |
| Input Noise Current (in) | Typ 0.15 fA/√Hz (1 kHz) |
| Gain Bandwidth Product (GBW) | Min 75 MHz (AV = 1, RL = 2 kΩ) |
| Slew Rate (SR) | Min 20 V/µs (AV = 1, VOUT = ±10 V) |
| Operating Temperature | -40°C to +85°C |
| Full Power Bandwidth | 280 kHz typ |
| -3dB Bandwidth | 8 MHz typ |
Key Features
- Ultralow Distortion and Noise: The AD797 features exceptionally low distortion and noise, making it ideal for applications requiring high signal integrity.
- Fast Settling Time: It has a fast 16-bit settling time of 800 ns, which is crucial for precision applications such as seismic detection and spectrum analyzers.
- High Output Drive Current: The device can provide a high output drive current of 50 mA, making it suitable for driving loads with high current requirements).
- Wide Supply Voltage Range: It operates with a supply voltage range of ±5 V to ±18 V, offering flexibility in various circuit designs).
- Excellent DC Precision: The AD797 has a maximum input offset voltage of 1.5 mV and a VOS drift of 1.0 μV/°C, ensuring accurate amplification of DC signals).
Applications
- Buffering for Σ-Δ ADCs and High-Resolution DACs: Ideal for buffering the inputs to Sigma-Delta ADCs and the outputs of high-resolution DACs in applications such as seismic detection and spectrum analyzers).
- Professional Audio Preamplifiers: Used in professional audio preamplifiers where low noise and low distortion are critical).
- IR, CCD, and Sonar Imaging Systems: Suitable for infrared (IR) and sonar imaging systems where the widest dynamic range is necessary).
- Ultrasound Preamplifiers: Used in ultrasound preamplifiers due to its high-speed signal processing capabilities).
- General-Purpose Amplification: Versatile enough to be used in various general-purpose amplification tasks where low noise, low distortion, and high precision are required).
Q & A
- What is the primary application of the AD797ARZ-REEL7?
The AD797ARZ-REEL7 is primarily used for buffering the inputs to Sigma-Delta (Σ-Δ) analog-to-digital converters (ADCs) and the outputs of high-resolution digital-to-analog converters (DACs), especially in critical applications such as seismic detection and spectrum analyzers).
- What is the input noise voltage of the AD797ARZ-REEL7?
The input noise voltage of the AD797ARZ-REEL7 is typically 0.9 nV/√Hz at 1 kHz).
- What is the slew rate of the AD797ARZ-REEL7?
The slew rate of the AD797ARZ-REEL7 is 20 V/µs).
- What is the operating temperature range of the AD797ARZ-REEL7?
The operating temperature range of the AD797ARZ-REEL7 is -40°C to +85°C).
- What is the maximum input offset voltage of the AD797ARZ-REEL7?
The maximum input offset voltage of the AD797ARZ-REEL7 is ±1.5 mV at 25°C).
- What is the full power bandwidth of the AD797ARZ-REEL7?
The full power bandwidth of the AD797ARZ-REEL7 is 280 kHz typical).
- What is the gain bandwidth product (GBW) of the AD797ARZ-REEL7?
The gain bandwidth product (GBW) of the AD797ARZ-REEL7 is 75 MHz minimum (AV = 1, RL = 2 kΩ)).
- Can the AD797ARZ-REEL7 be used in professional audio preamplifiers?
Yes, the AD797ARZ-REEL7 can be used in professional audio preamplifiers due to its low noise and low distortion characteristics).
- What is the package type of the AD797ARZ-REEL7?
The package type of the AD797ARZ-REEL7 is SOIC-8).
- What is the supply voltage range of the AD797ARZ-REEL7?
The supply voltage range of the AD797ARZ-REEL7 is ±4.5 V to ±18 V).
