Overview
The AD650BD, produced by Analog Devices Inc., is a high-performance voltage-to-frequency (V/F) and frequency-to-voltage (F/V) converter. This integrated circuit combines high frequency operation with low nonlinearity, making it suitable for a variety of precision applications. The AD650BD is part of the AD650 family, which is known for its inherent monotonicity and high resolution, making it useful as a high-resolution analog-to-digital converter. The device is available in a 14-lead ceramic DIP package and is specified for the industrial temperature range of −25°C to +85°C.
Key Specifications
| Specification | Value |
|---|---|
| Full-Scale Output Frequency | Up to 1 MHz |
| Linearity Error | Typically 20 ppm (0.002% of full scale), Maximum 50 ppm (0.005%) at 10 kHz full scale |
| Dynamic Range | Six decades |
| Input Signal Range | User-programmable with external capacitors and resistor |
| Input Offset Voltage | Can be trimmed to zero with an external potentiometer |
| Temperature Range | −25°C to +85°C (industrial) |
| Package Type | 14-lead ceramic DIP |
| Compatibility | TTL or CMOS compatible with open collector output |
Key Features
- High frequency operation up to 1 MHz with low nonlinearity
- Flexible input configuration for bipolar, unipolar, or differential input voltages, or unipolar input currents
- TTL or CMOS compatibility with open collector frequency output
- Separate analog and digital grounds to prevent ground loops
- User-programmable input signal range and full-scale output frequency
- Available in versions compliant with MIL-STD-883
Applications
- Analog-to-digital conversion
- 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 AD650BD used for? The AD650BD is used for voltage-to-frequency and frequency-to-voltage conversions, and it can also serve as a high-resolution analog-to-digital converter.
- What is the maximum full-scale output frequency of the AD650BD? The maximum full-scale output frequency is up to 1 MHz.
- What is the linearity error of the AD650BD? The linearity error is typically 20 ppm (0.002% of full scale) and a maximum of 50 ppm (0.005%) at 10 kHz full scale.
- What temperature range is the AD650BD specified for? The AD650BD is specified for the industrial temperature range of −25°C to +85°C.
- What package type is the AD650BD available in? The AD650BD is available in a 14-lead ceramic DIP package.
- Is the AD650BD compatible with TTL or CMOS logic? Yes, the AD650BD is TTL or CMOS compatible with an open collector output.
- How can the input signal range be configured for the AD650BD? The input signal range can be user-programmable with external capacitors and a resistor.
- Can the input offset voltage of the AD650BD be adjusted? Yes, the input offset voltage can be trimmed to zero with an external potentiometer.
- What are some common applications of the AD650BD? Common applications include analog-to-digital conversion, isolated analog signal transmission, phased-locked loop circuits, and precision stepper motor speed controllers.
- Is the AD650BD compliant with any military standards? Yes, the AD650BD is available in versions compliant with MIL-STD-883.
