AD835 is a 250MHz, voltage output 4-quadrant multiplier
The AD835 from Analog Devices is a monolithic four‑quadrant voltage‑output analog multiplier fabricated on a dielectrically isolated complementary bipolar process. It provides a linear product of its X and Y inputs with a –3 dB bandwidth of 250 MHz and a typical settling time of 20 ns to 0.1 % of full scale.
The device is available in 8‑lead PDIP (N) and 8‑lead SOIC (R) packages, operates from a +5 V supply over a –40 °C to +85 °C temperature range, and offers low multiplier noise (50 nV/√Hz) and high differential input impedance. Typical applications include wideband voltage‑controlled amplifiers, amplitude modulators, frequency doublers, and square‑law detection.
| Small‑Signal Bandwidth | 250 MHz |
|---|---|
| Settling Time (0.1 % FS) | 20 ns |
| Multiplier Noise | 50 nV/√Hz |
| Output Voltage Swing | +2.2 V to +2.5 V |
| Maximum Output Current | 75 mA |
| Quiescent Supply Current | 16‑25 mA |
| Differential Input Resistance | 60 kΩ |
| CMRR | 70 dB at 100 kHz |
The AD835 has a –3 dB small‑signal bandwidth of 250 MHz.
It settles to 0.1 % of full scale in 20 ns.