Overview
The AD795JR-REEL7 is a low noise, precision FET input operational amplifier produced by Analog Devices Inc. This device combines the low voltage noise and low offset drift characteristics of bipolar input op-amps with the very low bias current of FET-input devices. It is designed for applications requiring high precision and low noise, making it suitable for a variety of uses in instrumentation and signal processing.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | ±4 | ±18 | V | |
| Quiescent Current | 1.3 | 1.5 | mA | |
| Input Offset Voltage | 500 | μV | ||
| Input Bias Current | 2 | pA | ||
| Input Offset Voltage Drift | 10 | μV/°C | ||
| Common-Mode Rejection Ratio | 86 | 90 | 110 | dB |
| Output Voltage Range | VS - 4 | VS - 2.5 | V | |
| Output Current | 10 | mA | ||
| Bandwidth | 1.6 | MHz |
Key Features
- Low noise: Guaranteed maximum input voltage noise, making it suitable for high precision applications.
- Low offset drift: Offers low offset voltage drift of 10 μV/°C, ensuring stable performance over temperature variations.
- Low bias current: Maximum input bias current of 2 pA, which is essentially independent of common-mode voltage and supply voltage variations.
- Low power consumption: Maximum supply current of 1.5 mA, making it energy-efficient.
- High common-mode rejection ratio: Up to 110 dB, ensuring good immunity to common-mode noise.
- Wide operating temperature range: From 0°C to +70°C, suitable for various environmental conditions.
Applications
- Low noise photodiode preamps: Ideal for applications requiring high sensitivity and low noise.
- CT scanners: Used in medical imaging due to its high precision and low noise characteristics.
- Precision I-to-V converters: Suitable for converting current signals to voltage signals with high accuracy.
- Instrumentation and signal processing: General use in various instrumentation and signal processing applications where low noise and high precision are required.
Q & A
- What is the typical supply voltage range for the AD795JR-REEL7?
The typical supply voltage range is ±4 V to ±18 V.
- What is the maximum input bias current of the AD795JR-REEL7?
The maximum input bias current is 2 pA.
- What is the common-mode rejection ratio (CMRR) of the AD795JR-REEL7?
The CMRR is up to 110 dB.
- What is the operating temperature range of the AD795JR-REEL7?
The operating temperature range is from 0°C to +70°C.
- What is the typical quiescent current of the AD795JR-REEL7?
The typical quiescent current is 1.5 mA.
- What is the bandwidth of the AD795JR-REEL7?
The bandwidth is up to 1.6 MHz.
- What are some common applications of the AD795JR-REEL7?
Common applications include low noise photodiode preamps, CT scanners, precision I-to-V converters, and general instrumentation and signal processing.
- What is the input offset voltage of the AD795JR-REEL7?
The maximum input offset voltage is 500 μV.
- How does the AD795JR-REEL7 handle common-mode voltage variations?
The 1014 Ω common-mode impedance ensures that the input bias current is essentially independent of common-mode voltage and supply voltage variations.
- What is the packaging type for the AD795JR-REEL7?
The packaging type is 8-Lead SOIC (Surface Mount).
