Overview
The AD538ADZ is a monolithic real-time analog computational unit (ACU) produced by Analog Devices Inc. This device is designed to perform precision analog multiplication, division, and exponentiation. It features low input and output offset voltages and excellent linearity, enabling accurate computation over a wide input dynamic range. The AD538ADZ is particularly notable for its high accuracy, achieved through laser wafer trimming, which reduces errors to as low as 0.25% of reading. The device operates with a bandwidth of 400 kHz, enhancing real-time analog signal processing capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 18-lead TO-118 hermetic side-brazed ceramic DIP |
| Temperature Range | Industrial: −25°C to +85°C, Military: −55°C to +125°C |
| Accuracy Grades | A, B (Industrial), S (Military) |
| Input Offset Voltage | Typical: 100 μV or less |
| Bandwidth | 400 kHz |
| Error Specification | ±1% of reading ± 500 μV (for inputs down to 100 mV) |
| Voltage Inputs | VX, VY, VZ |
| Current Input | IZ for the Z multiplicand |
| Power Supply | +10V, +2V, -VS, +VS |
Key Features
- Precision analog multiplication, division, and exponentiation
- Low input and output offset voltages (typical: 100 μV or less)
- Excellent linearity over a wide input dynamic range
- High accuracy due to laser wafer trimming (errors as low as 0.25% of reading)
- 400 kHz bandwidth for real-time analog signal processing
- Programmable via pin strapping for various functions
- Log ratio and antilog subsections for flexible signal processing
Applications
The AD538ADZ is suitable for various applications requiring precise analog computation, such as:
- Analog signal processing systems
- Control systems
- Measurement and instrumentation
- Aerospace and military electronics
- Industrial automation
Q & A
- What is the primary function of the AD538ADZ? The AD538ADZ is a real-time analog computational unit designed for precision analog multiplication, division, and exponentiation.
- What is the typical input offset voltage of the AD538ADZ? The typical input offset voltage is 100 μV or less.
- What is the bandwidth of the AD538ADZ? The bandwidth is 400 kHz.
- How is the AD538ADZ programmed for different functions? The AD538ADZ is programmed via pin strapping.
- What are the temperature ranges for the AD538ADZ? The device operates over the industrial temperature range of −25°C to +85°C and the military temperature range of −55°C to +125°C.
- What types of accuracy grades are available for the AD538ADZ? The device is available in accuracy grades A and B for industrial use and grade S for military use.
- What is the package type of the AD538ADZ? The device is packaged in an 18-lead TO-118 hermetic side-brazed ceramic DIP.
- What are some common applications of the AD538ADZ? Common applications include analog signal processing systems, control systems, measurement and instrumentation, aerospace and military electronics, and industrial automation.
- How accurate is the AD538ADZ in terms of error specification? The error specification is ±1% of reading ± 500 μV for inputs down to 100 mV.
- Can the AD538ADZ be used for exponentiation? Yes, the AD538ADZ can be used for exponentiation by raising the quantity VZ/VX to the mth power.
