AD835ARZ-REEL7

250兆赫，电压输出， 4象限乘法器 250 MHz, Voltage Output, 4-Quadrant Multiplier

Product Details

The AD835 is a complete four-quadrant, voltage output analog multiplier, fabricated on an advanced dielectrically isolated complementary bipolar process. It generates the linear product of its X and Y voltage inputs with a −3 dB output bandwidth of 250 MHz a small signal rise time of 1 ns. Full-scale −1 V to +1 V rise to fall times are 2.5 ns with a standard RL of 150 Ω, and the settling time to 0.1% under the same conditions is typically 20 ns.

Its differential multiplication inputs X, Y and its summing input Z are at high impedance. The low impedance output voltage W can provide up to ±2.5 V and drive loads as low as 25 Ω. Normal operation is from ±5 V supplies.

Though providing state-of-the-art speed, the AD835 is simple to use and versatile. For example, as well as permitting the addition of a signal at the output, the Z input provides the means to operate the AD835 with voltage gains up to about ×10. In this capacity, the very low product noise of this multiplier 50 nV/√Hz makes it much more useful than earlier products.

The AD835 is available in an 8-lead PDIP package N and an 8-lead SOIC package R and is specified to operate over the −40°C to +85°C industrial temperature range.

**

**

**Product Highlights**

.

The AD835 is the first monolithic 250 MHz, four-quadrant voltage output multiplier.

.

Minimal external components are required to apply the AD835 to a variety of signal processing applications.

.

High input impedances 100 kΩ||2 pF make signal source loading negligible.

.

High output current capability allows low impedance loads to be driven.

.

State-of-the-art noise levels achieved through careful device optimization and the use of a special low noise, band gap voltage reference.

.

Designed to be easy to use and cost effective in applications that require the use of hybrid or board-level solutions.

**Applications**

.

Very fast multiplication, division, squaring

.

Wideband modulation and demodulation

.

Phase detection and measurement

.

Sinusoidal frequency doubling

.

Video gain control and keying

.

Voltage-controlled amplifiers and filters

### Features and Benefits

.

Simple: Basic Function is 

W = XY + Z

.

Complete: Minimal External Components Required

.

DC-Coupled Voltage Output Simplifies 

Use

.

Very Fast: Settles to 0.1% of FS in 20 ns

.

High Differential Input Impedance X, Y, and Z Inputs

.

Low Multiplier Noise: 50 nV/vHz