Overview
The AD534KH is a monolithic laser-trimmed four-quadrant multiplier/divider produced by Analog Devices Inc. This component is renowned for its high accuracy and versatility, making it a preferred choice for various analog signal processing applications. The AD534KH offers fully differential, high impedance operation on all inputs, including the Z input, which enhances its flexibility and ease of use. It is part of a family of multipliers that include different grades such as AD534J, AD534K, and AD534L, each with varying maximum error specifications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 8.0 | 18.0 | V | |
| Temperature Range | 0 | 70 | °C | |
| Maximum Multiplication Error | ±0.5% | |||
| Noise (10 Hz to 10 kHz) | 90 | μV rms | ||
| Bias Current | 0.8 | 2.0 | 2.0 | μA |
| Offset Current | 0.1 | 0.1 | 0.22 | μA |
| Differential Resistance | 10 | 10 | 10 | MΩ |
| Scale Factor | 3 | 10 | V |
Key Features
- Fully differential, high impedance operation on all inputs (X, Y, and Z).
- Low noise design: 90 μV rms, 10 Hz to 10 kHz.
- Low cost, monolithic construction.
- Excellent long-term stability and supply rejection.
- Scale factor adjustable to provide up to ×100 gain.
- High common-mode rejection ratio (CMRR): up to 90 dB.
- Available in hermetically sealed TO-100 metal cans and SBDIP packages.
Applications
- High quality analog signal processing.
- Differential ratio and percentage computations.
- Algebraic and trigonometric function synthesis.
- Wideband, high crest rms-to-dc conversion.
- Accurate voltage controlled oscillators and filters.
- Wattmeters, frequency doublers, and automatic gain controls.
Q & A
- What is the AD534KH used for? The AD534KH is used for high-quality analog signal processing, differential ratio and percentage computations, algebraic and trigonometric function synthesis, and other applications requiring precise multiplication and division.
- What is the maximum multiplication error of the AD534KH? The maximum multiplication error of the AD534KH is ±0.5%.
- What is the temperature range for the AD534KH? The AD534KH is specified for operation over the 0°C to +70°C temperature range.
- What is the noise level of the AD534KH? The noise level of the AD534KH is 90 μV rms over the 10 Hz to 10 kHz frequency range.
- Can the scale factor of the AD534KH be adjusted? Yes, the scale factor of the AD534KH can be adjusted to values as low as 3 V using an external resistor.
- What packages are available for the AD534KH? The AD534KH is available in hermetically sealed TO-100 metal cans and SBDIP packages.
- What is the common-mode rejection ratio (CMRR) of the AD534KH? The CMRR of the AD534KH is up to 90 dB.
- Is the AD534KH suitable for high-temperature applications? No, the AD534KH is not suitable for high-temperature applications beyond +70°C. For extended temperature ranges, other grades like AD534S and AD534T are available.
- How does the AD534KH reduce nonlinearities? The AD534KH reduces nonlinearities by using a high gain output amplifier and a multiplier cell based on Gilbert’s translinear technique, which dramatically reduces nonlinearities due to the input amplifiers.
- Can the AD534KH be used as a variable gain differential input amplifier? Yes, the AD534KH can be very effectively employed as a variable gain differential input amplifier with high common-mode rejection.
