Manufacturer Part Number
AD640TD/883B
Manufacturer
Analog Devices, Inc.
Introduction
High-performance CMOS logarithmic amplifier
Provides precise logarithmic compression of a wide dynamic range input signal
Product Features and Performance
Wide dynamic range of 120 dB
High bandwidth of 350 MHz
Low input bias current of 7 µA
Wide supply voltage range of 9 V to 15 V
Low power consumption of 35 mA
Accurate logarithmic transfer function
Excellent temperature stability
Product Advantages
Provides precise logarithmic compression of a wide dynamic range input signal
High bandwidth allows usage in high-speed applications
Low power consumption and wide supply voltage range make it suitable for various applications
Excellent temperature stability ensures reliable performance across operating conditions
Key Technical Parameters
Manufacturer Part Number: AD640TD/883B
Package: 20-CDIP (0.300", 7.62mm)
Mounting Type: Through Hole
Operating Temperature: -55°C to 125°C
Supply Voltage Range: 9 V to 15 V
Supply Current: 35 mA
Input Offset Voltage: 50 µV
Amplifier Type: Logarithmic
Output Current: 2.3 mA
Input Bias Current: 7 µA
-3 dB Bandwidth: 350 MHz
Quality and Safety Features
RoHS3 compliant
Military-grade 883B qualification
Compatibility
Suitable for a wide range of applications requiring high-performance logarithmic amplification
Application Areas
Instrumentation and test equipment
Radar and sonar systems
Imaging and video processing
Biomedical equipment
Communication systems
Product Lifecycle
The AD640 is an established product from Analog Devices and is not near discontinuation.
Replacement and upgrade options are available, such as the AD8307 and AD8304 logarithmic amplifiers.
Key Reasons to Choose This Product
Excellent dynamic range of 120 dB for handling a wide range of input signals
High bandwidth of 350 MHz for high-speed applications
Low power consumption and wide supply voltage range for versatile use
Accurate logarithmic transfer function for precise signal compression
Reliable performance across a wide operating temperature range
Military-grade quality and safety features for critical applications