Overview
The AD640JPZ is a high-speed, high-accuracy logarithmic amplifier IC produced by Analog Devices Inc. This device is designed to provide precise logarithmic compression and expansion, making it ideal for applications that require these functionalities. The AD640JPZ is part of the AD640 series, which is known for its wide dynamic range and fast response time, making it suitable for real-time signal processing.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Bandwidth | 350 MHz | |
| Dynamic Range | Up to 90 dB | |
| Logarithmic Response Time | 800 ns | |
| Logarithmic Conformity | ±0.5 dB over 80 dB dynamic range | |
| Input Offset Voltage | 50 μV | |
| Supply Voltage Range | 9 V to 15 V | |
| Power Consumption | 35 mA | |
| Operating Temperature Range | 0°C to 70°C | |
| Package | 20-PLCC (9x9) | |
| Mounting Type | Surface mount |
Key Features
- Precise logarithmic compression and expansion
- High speed and wide bandwidth for fast signal processing
- Low noise and distortion for accurate measurements
- Wide supply voltage range for various applications
- Low power consumption
- Direct coupled fully differential signal path for dc or square wave inputs
- Dual polarity current outputs scaled at 1 mA per decade
- Voltage slope options (1 V/Decade, 100 mV/dB, etc.)
Applications
- Audio and video signal processing
- Automatic gain control (AGC) circuits
- Instrumentation and test equipment
- Medical imaging systems
- Radar and communications systems
- Precision instrumentation from DC to 120 MHz
- Power measurement with absolute calibration
- Radar, sonar, ultrasonic, and audio systems
Q & A
- What is the primary function of the AD640JPZ?
The AD640JPZ is a logarithmic amplifier IC designed for precise logarithmic compression and expansion.
- What is the bandwidth of the AD640JPZ?
The bandwidth of the AD640JPZ is 350 MHz.
- What is the dynamic range of the AD640JPZ?
The AD640JPZ has a dynamic range of up to 90 dB.
- How fast is the logarithmic response time of the AD640JPZ?
The logarithmic response time is 800 ns.
- What is the input offset voltage of the AD640JPZ?
The input offset voltage is 50 μV.
- What is the supply voltage range for the AD640JPZ?
The supply voltage range is from 9 V to 15 V.
- What are the typical applications of the AD640JPZ?
The AD640JPZ is used in audio and video signal processing, AGC circuits, instrumentation and test equipment, medical imaging systems, and radar and communications systems.
- What is the operating temperature range of the AD640JPZ?
The operating temperature range is from 0°C to 70°C.
- What type of package does the AD640JPZ come in?
The AD640JPZ comes in a 20-PLCC (9x9) package.
- Is the AD640JPZ suitable for military applications?
While the AD640JPZ itself is specified for commercial temperature ranges, there are military-grade versions (AD640B and AD640T) available for such applications.
