Overview
The AD605ARZ from Analog Devices is a dual, low noise, single-supply variable gain amplifier designed for high-speed signal processing applications. This analog voltage-controlled amplifier (VCA) is ideal for systems requiring variable gain and minimal interference, such as audio and instrumentation systems, data acquisition systems, communication systems, and radar systems. The device features two independent channels with fully differential inputs, providing a dynamic range of 50 dB. It operates over a temperature range of -40°C to +85°C and is packaged in a compact 16-lead SOIC format, making it suitable for surface-mount technology.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Part Number | AD605ARZ |
| Amplifier Type | Variable Gain Amplifiers |
| Number of Channels | 2 Channel |
| GBP - Gain Bandwidth Product | 40 MHz |
| SR - Slew Rate | 170 V/us |
| CMRR - Common Mode Rejection Ratio | -20 dB |
| Ib - Input Bias Current | -400 nA |
| Supply Voltage - Min | 4.5 V |
| Supply Voltage - Max | 5.5 V |
| Operating Supply Current | 18 mA |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| Mounting Style | SMD/SMT |
| Package Type | 16-lead SOIC |
Key Features
- Dual, low noise, single-supply variable gain amplifier
- Two independent channels with fully differential inputs and 50 dB dynamic range
- Programmable gain stages with gain ranges from -14 dB to +34 dB and 0 dB to +48 dB
- Laser-diode driver capabilities
- Low power consumption: 25 mW or 50 μW (depending on the application)
- Operating temperature range: -40°C to +85°C
- Surface-mount technology in 16-lead SOIC package
- Digital output for easy interface
- High performance linear-in-dB response with differential input, single-supply, exponential amplifier (DSX-AMP) architecture
Applications
- High-speed signal processing applications
- Variable gain amplifiers
- Data acquisition systems
- Instrumentation
- Communication systems
- Radar systems
Q & A
- What is the AD605ARZ used for?
The AD605ARZ is used for high-speed signal processing applications, variable gain amplifiers, data acquisition systems, instrumentation, communication systems, and radar systems.
- How many channels does the AD605ARZ have?
The AD605ARZ has two independent channels with fully differential inputs.
- What is the gain bandwidth product of the AD605ARZ?
The gain bandwidth product (GBP) of the AD605ARZ is 40 MHz.
- What is the slew rate of the AD605ARZ?
The slew rate (SR) of the AD605ARZ is 170 V/us.
- What is the operating temperature range of the AD605ARZ?
The operating temperature range of the AD605ARZ is -40°C to +85°C.
- What package type is the AD605ARZ available in?
The AD605ARZ is available in a 16-lead SOIC package.
- How does the gain control work on the AD605ARZ?
The gain control on the AD605ARZ is achieved through a user-determined gain range and an external reference input, providing user-determined gain scaling (dB/V).
- What is the power consumption of the AD605ARZ?
The power consumption of the AD605ARZ is 25 mW or 50 μW, depending on the application.
- Can the AD605ARZ be used in cascaded configurations?
Yes, the two channels of the AD605ARZ can be cascaded to provide a very accurate gain range of up to 96 dB.
- What is the input noise spectral density of the AD605ARZ?
The input noise spectral density of the AD605ARZ is 1.8 nV/√Hz.
