Overview
The AD834JRZ is a monolithic, laser-trimmed four-quadrant analog multiplier designed by Analog Devices Inc. for high-frequency applications. It features a transconductance bandwidth exceeding 500 MHz, making it suitable for a wide range of high-speed nonlinear operations. The device is available in various packages, including 8-lead PDIP, SOIC, and CERDIP, catering to different temperature ranges from commercial to military specifications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Transconductance Bandwidth | >500 MHz | |
| Differential Voltage Inputs | ±1 V full-scale | |
| Differential Output Current | ±4 mA full-scale | |
| Supply Voltages | ±4 V to ±9 V | |
| Power Consumption | 280 mW typical at VS = ±5 V | |
| Temperature Range | 0°C to 70°C (commercial), -40°C to +85°C (industrial), -55°C to +125°C (military) | |
| Package Types | 8-lead PDIP, SOIC, CERDIP | |
| Distortion | ≤0.05% for 0 dBm input | |
| Rise Time | Typically 500 ps | |
| Settling Time | Under 5 ns to within 1% |
Key Features
- High static accuracy with low input and output offsets and accurate scale factor.
- Very high bandwidth, extending from DC to over 500 MHz.
- Low distortion levels (better than -60 dB on either input) and low signal feedthrough (typically -65 dB up to 20 MHz).
- Low differential phase error over the input range.
- Nonloading, high impedance, differential inputs.
- Accurate calibration allowing precise weighting of outputs from multiple devices.
- Stable biasing based on a band gap reference generator.
Applications
- Square rooting, analog division, vector addition, and rms-to-dc conversion.
- High-speed nonlinear operations.
- Power measurement and other applications requiring high bandwidth.
- Military and industrial environments due to its wide temperature range.
Q & A
- What is the primary function of the AD834JRZ?
The AD834JRZ is a four-quadrant analog multiplier designed for high-frequency applications.
- What is the transconductance bandwidth of the AD834JRZ?
The transconductance bandwidth exceeds 500 MHz.
- What are the typical supply voltages for the AD834JRZ?
The supply voltages range from ±4 V to ±9 V.
- How much power does the AD834JRZ typically consume?
It typically consumes 280 mW at VS = ±5 V.
- What are the available package types for the AD834JRZ?
The device is available in 8-lead PDIP, SOIC, and CERDIP packages.
- What is the distortion level of the AD834JRZ?
The distortion level is ≤0.05% for 0 dBm input.
- How quickly does the AD834JRZ settle to within 1% of its final value?
It settles to within 1% in under 5 ns.
- What are some common applications of the AD834JRZ?
It is used in square rooting, analog division, vector addition, and rms-to-dc conversion, among other high-speed nonlinear operations.
- Is the AD834JRZ suitable for military applications?
- How do I convert the differential output to a single-ended ground-referenced voltage output?
This can be done using a wideband transformer, balun, or active circuitry such as an op amp.
