AD734 10 MHz, 4-Quadrant Multiplier/Divider

The AD734 is an accurate high speed, four-quadrant analog multiplier that is pin-compatible with the industry-standard AD534 and provides the transfer function W = XY/U. The AD734 provides a low-impedance voltage output with a full-power (20 V pk-pk) bandwidth of 10 MHz. Total static error (scaling, offsets, and nonlinearities combined) is 0.1% of full scale. Distortion is typically less than -80 dBc and guaranteed. The low capacitance X, Y and Z inputs are fully differential. In most applications, no external components are required to define the function.

The internal scaling (denominator) voltage U is 10 V, derived from a buried-Zener voltage reference. A new feature provides the option of substituting an external denominator voltage, allowing the use of the AD734 as a two-quadrant divider with a 1000:1 denominator range and a signal bandwidth that remains 10 MHz to a gain of 20 dB, 2 MHz at a gain of 40 dB and 200 kHz at a gain of 60 dB, for a gain-bandwidth product of 200 MHz.

The advanced performance of the AD734 is achieved by a combination of new circuit techniques, the use of a high speed complementary bipolar process and a novel approach to laser-trimming based on ac signals rather than the customary dc methods. The wide bandwidth (>40 MHz) of the AD734's input stages and the 200 MHz gain-bandwidth product of the multiplier core allow the AD734 to be used as a low distortion Modulator, Demodulator Wideband Gain Control, RMS-DC Conversion Voltage-Controlled Amplifiers, Oscillators, and Filters Demodulator with 40 MHz Input Bandwidth demodulator with input frequencies as high as 40 MHz as long as the desired output frequency is less than 10 MHz.

The AD734AQ and AD734BQ are specified for the industrial temperature range of -40°C to +85°C and come in a 14-pin ceramic DIP. The AD734SQ/883B, available processed to MIL-STD- 883B for the military range of -55°C to +125°C, is available in a 14-pin ceramic DIP.

Features and Benefits
  • High Accuracy 0.1% Typical Error
  • High Speed 
    10 MHz Full-Power Bandwidth
    450 V/µs Slew Rate
    200 ns Settling to 0.1% at Full Power
  • Direct Division Mode 2 MHz BW at Gain of 100
  • Low Distortion 
    -80 dBc from Any Input
    Third-Order IMD Typically -75 dBc at 10 MHz
  • Low Noise 
    94 dB SNR, 10 Hz to 20 kHz
    70 dB SNR, 10 Hz to 10 MHz
Linear Products
AD734 SPICE Macro-Model
Data Sheets
Documentnote
AD734: 10 MHz, Four-Quadrant Multiplier/Divider Data Sheet (Rev. E)PDF 213 kB
Application Notes
Documentnote
AN-213: Low Cost, Two-Chip, Voltage -Controlled Amplifier and Video SwitchPDF 391 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD734AN Production14 ld PDIPOTH 25-40 to 85C20.5518.57N
AD734ANZ Production14 ld PDIPOTH 25-40 to 85C18.1816.45Y
AD734AQ Production14 ld CerDIPOTH 25-40 to 85C19.6717.79N
AD734BN Production14 ld PDIPOTH 25-40 to 85C34.7831.43N
AD734BNZ Production14 ld PDIPOTH 25-40 to 85C30.7627.81Y
AD734BQ Production14 ld CerDIPOTH 25-40 to 85C33.2530.05N
AD734SCHIPS ProductionCHIPS OR DIEREEL 88-55 to 125C037.39Y
AD734SQ/883B Production14 ld CerDIPOTH 25-55 to 125C7265.08N
AD734: 10 MHz, Four-Quadrant Multiplier/Divider Data Sheet (Rev. E) ad734
AD734 SPICE Macro-Model Rev. B, 4/92 ad734
AD734B SPICE Macro-Model Rev. B, 4/92 ad734
AD734S SPICE Macro-Model Rev. B, 4/92 ad734
AN-213: Low Cost, Two-Chip, Voltage -Controlled Amplifier and Video Switch adv7202