Overview
The AD632BHZ, produced by Analog Devices Inc., is an internally trimmed monolithic four-quadrant multiplier/divider. This component is part of the AD632 series, which offers improved specifications over the industry standard AD532. The AD632BHZ is notable for its high accuracy, with a maximum multiplying error of ±0.5% without external trims. It features a fully differential high impedance Z-input and is capable of providing gains of up to ×10, often eliminating the need for separate instrumentation amplifiers. The device is designed for low noise operation, with a noise level of 90 µV rms over the 10 Hz to 10 kHz frequency range, and excellent long-term stability due to its on-chip thin film resistors and buried zener reference.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Maximum Multiplying Error | - | - | ±0.5% | - |
| Supply Voltage | ±8 | - | ±18 | V |
| Quiescent Supply Current | 4 | 6 | 6 | mA |
| Operating Temperature Range | -25 | - | +85 | °C |
| Extended Temperature Range (AD632S, AD632T) | -55 | - | +125 | °C |
| Noise Level (10 Hz to 10 kHz) | - | 90 | - | µV rms |
| Output Voltage Swing | - | - | ±11 | V |
| Output Impedance (f ≤ 1 kHz) | - | 0.1 | 0.1 | Ω |
Key Features
- Internally trimmed for high accuracy with a maximum multiplying error of ±0.5% without external trims.
- All inputs (X, Y, and Z) are differential and high impedance.
- Scale-factor adjustable to provide up to ×10 gain.
- Low noise design with 90 µV rms noise level over 10 Hz to 10 kHz.
- Low cost, monolithic construction.
- Excellent long-term stability due to on-chip thin film resistors and buried zener reference.
- Pin-for-pin compatible with the industry standard AD532 but with improved specifications.
- High common-mode rejection and can be used as a variable gain differential input amplifier.
Applications
- High quality analog signal processing.
- Differential ratio and percentage computations.
- Algebraic and trigonometric function synthesis.
- Accurate voltage controlled oscillators and filters.
Q & A
- What is the maximum multiplying error of the AD632BHZ?
The maximum multiplying error of the AD632BHZ is ±0.5% without external trims.
- What is the operating temperature range of the AD632BHZ?
The AD632BHZ operates from -25°C to +85°C, with extended ranges available for certain models.
- What is the noise level of the AD632BHZ?
The noise level of the AD632BHZ is 90 µV rms over the 10 Hz to 10 kHz frequency range.
- Can the AD632BHZ be used as a variable gain amplifier?
Yes, the AD632BHZ can be effectively employed as a variable gain differential input amplifier with high common-mode rejection.
- What are the package options for the AD632BHZ?
The AD632BHZ is available in either hermetically sealed TO-100 metal can or ceramic DIP packages.
- Is the AD632BHZ compatible with other industry standards?
Yes, the AD632BHZ is pin-for-pin compatible with the industry standard AD532 but with improved specifications.
- What are some typical applications of the AD632BHZ?
Typical applications include high quality analog signal processing, differential ratio and percentage computations, algebraic and trigonometric function synthesis, and accurate voltage controlled oscillators and filters.
- Does the AD632BHZ have any special screening options?
Yes, the AD632S and AD632T series are available with MIL-STD-883 Level B screening.
- How does the AD632BHZ handle supply voltage variations?
The AD632BHZ has excellent supply rejection and low temperature coefficients, preserving accuracy even under adverse conditions.
- What is the output impedance of the AD632BHZ?
The output impedance of the AD632BHZ is 0.1 Ω for frequencies up to 1 kHz.
