Overview
The AD650JN, produced by Analog Devices Inc., is a high-performance voltage-to-frequency (V/F) and frequency-to-voltage (F/V) converter. This monolithic IC offers a unique combination of high frequency operation and low nonlinearity, making it highly suitable for various precision applications. The AD650JN is particularly useful in analog-to-digital conversion due to its inherent monotonicity and high resolution capabilities, achieving approximately 14-bit linearity in such circuits. It is available in a 14-lead plastic DIP package and is specified for the commercial temperature range (0°C to 70°C).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Full-Scale Output Frequency | Up to 1 MHz | Hz |
| Linearity Error (Typical) | 20 ppm (0.002% of full scale) | % |
| Linearity Error (Maximum at 10 kHz full scale) | 50 ppm (0.005%) | % |
| Dynamic Range | Six decades | - |
| Input Signal Range | User-programmable with external capacitors and resistor | - |
| Output Type | Open-collector frequency output | - |
| Temperature Range | 0°C to 70°C (commercial) | °C |
| Package Type | 14-lead plastic DIP | - |
Key Features
- High frequency operation up to 1 MHz with very high linearity.
- Flexible input configuration to accommodate bipolar, unipolar, or differential input voltages, or unipolar input currents.
- TTL or CMOS compatibility achieved through an open-collector frequency output.
- Separate analog and digital grounds to prevent ground loops.
- Input offset voltage can be trimmed to zero with an external potentiometer.
- Available in versions compliant with MIL-STD-883.
Applications
- Analog-to-digital conversion with high resolution.
- Isolated analog signal transmission.
- Phased-locked loop circuits.
- Precision stepper motor speed controllers.
- Precision tachometer and FM demodulator circuits in F/V mode.
Q & A
- What is the maximum full-scale output frequency of the AD650JN?
The AD650JN can operate at full-scale output frequencies up to 1 MHz.
- What is the typical linearity error of the AD650JN?
The typical linearity error is 20 ppm (0.002% of full scale).
- What types of input signals can the AD650JN accommodate?
The AD650JN can accommodate bipolar, unipolar, or differential input voltages, or unipolar input currents.
- How is TTL or CMOS compatibility achieved in the AD650JN?
TTL or CMOS compatibility is achieved through an open-collector frequency output.
- Can the input offset voltage of the AD650JN be adjusted?
- What are the temperature ranges for the AD650JN?
The AD650JN is specified for the commercial temperature range (0°C to 70°C).
- What package types are available for the AD650JN?
The AD650JN is available in a 14-lead plastic DIP package.
- Is the AD650JN compliant with any military standards?
- What are some common applications of the AD650JN?
- Can the AD650JN be used for both V/F and F/V conversions?
