Overview
The AD835ANZ, produced by Analog Devices Inc., is a complete four-quadrant, voltage output analog multiplier. Fabricated on an advanced dielectrically isolated complementary bipolar process, this component is designed to generate the linear product of its X and Y voltage inputs. It features a high bandwidth of 250 MHz and a small signal rise time of 1 ns, making it suitable for a wide range of high-speed signal processing applications. The AD835ANZ is available in an 8-lead PDIP package and operates over an industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Bandwidth | - | 250 | - | MHz |
| Rise Time (Small Signal) | - | 1 | - | ns |
| Settling Time to 0.1% FS | - | 20 | - | ns |
| Differential Input Resistance | 60 | - | - | kΩ |
| Single-Sided Capacitance | 2 | - | - | pF |
| Output Voltage Swing | ±2.2 | ±2.5 | - | V |
| Voltage Noise Spectral Density | - | 50 | - | nV/√Hz |
| Supply Voltage | ±5 | - | - | V |
| Operating Temperature Range | -40 | - | +85 | °C |
Key Features
- Simple Functionality: The basic function is W = XY + Z, making it easy to integrate into various signal processing applications.
- High Speed: Settles to 0.1% of full scale in 20 ns and has a small signal rise time of 1 ns.
- DC-Coupled Voltage Output: Simplifies use by eliminating the need for external coupling capacitors.
- High Differential Input Impedance: Inputs X, Y, and Z have high impedance (100 kΩ||2 pF), minimizing signal source loading.
- Low Multiplier Noise: Achieves state-of-the-art noise levels with a voltage noise spectral density of 50 nV/√Hz.
- High Output Current Capability: Can drive loads as low as 25 Ω.
- Versatile Summing Input (Z): Allows for voltage gains up to about ×10 and addition of signals at the output.
Applications
- Very Fast Multiplication, Division, Squaring: Ideal for high-speed mathematical operations.
- Wideband Modulation and Demodulation: Suitable for high-frequency signal modulation and demodulation tasks.
- Phase Detection and Measurement: Used in applications requiring precise phase measurements.
- Sinusoidal Frequency Doubling: Effective in doubling sinusoidal frequencies.
- Video Gain Control and Keying: Applied in video signal processing for gain control and keying.
- Voltage-Controlled Amplifiers and Filters: Utilized in voltage-controlled amplifiers and filters due to its low noise and high precision.
Q & A
- What is the primary function of the AD835ANZ?
The primary function of the AD835ANZ is to generate the linear product of its X and Y voltage inputs, represented as W = XY + Z.
- What is the bandwidth of the AD835ANZ?
The AD835ANZ has a bandwidth of 250 MHz.
- How quickly does the AD835ANZ settle to 0.1% of full scale?
The AD835ANZ settles to 0.1% of full scale in 20 ns.
- What is the input impedance of the X, Y, and Z inputs?
The inputs X, Y, and Z have a high differential input impedance of 100 kΩ||2 pF.
- What is the voltage noise spectral density of the AD835ANZ?
The voltage noise spectral density is 50 nV/√Hz.
- What is the typical supply voltage for the AD835ANZ?
The typical supply voltage is ±5 V.
- What is the operating temperature range of the AD835ANZ?
The operating temperature range is −40°C to +85°C.
- Can the AD835ANZ drive low impedance loads?
Yes, the AD835ANZ can drive loads as low as 25 Ω.
- What are some common applications of the AD835ANZ?
Common applications include very fast multiplication, division, squaring, wideband modulation and demodulation, phase detection and measurement, sinusoidal frequency doubling, video gain control and keying, and voltage-controlled amplifiers and filters.
- In what package is the AD835ANZ available?
The AD835ANZ is available in an 8-lead PDIP package.
