Overview
The AD652JP-REEL, produced by Analog Devices Inc., is a monolithic synchronous voltage-to-frequency converter (SVFC). This device is a powerful building block for precision analog-to-digital conversion, offering high linearity and stability. It is designed to operate from a single-ended power source, making it versatile for use with isolated power supplies. The AD652JP-REEL is available in various performance grades, catering to different temperature ranges and application requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Gain Error (fCLOCK = 200 kHz) | ±0.5% | ±1% | ±1% | % |
| Gain Error (fCLOCK = 1 MHz) | ±0.5% | ±1% | ±1% | % |
| Gain Error (fCLOCK = 4 MHz) | ±0.5% | ±1.5% | ±1.5% | % |
| Gain Temperature Coefficient (fCLOCK = 200 kHz) | ±25 | ±50 | ±50 | ppm/°C |
| Reference Output Voltage | 4.950 | 5.0 | 5.050 | V |
| Reference Output Drift | 100 | 50 | 50 | ppm/°C |
| Power Supply Rated Voltage | ±15 | ±15 | ±15 | V |
| Operating Temperature Range (JP Grade) | 0 | - | +70 | °C |
| Operating Temperature Range (AQ/BQ Grade) | -40 | - | +85 | °C |
| Operating Temperature Range (SQ Grade) | -55 | - | +125 | °C |
Key Features
- The AD652JP-REEL uses an external clock to set the full-scale frequency, ensuring superior linearity and stability compared to other monolithic VFCs.
- It requires only one external component, a noncritical integrator capacitor, for operation.
- The device includes a buffered, accurate 5 V reference.
- The clock input is TTL and CMOS compatible.
- Minimized gain drift through the use of a precision low drift reference and low TC, on-chip, thin-film scaling resistors.
- Initial gain error reduced to less than 0.5% by laser-wafer-trimming.
Applications
The AD652JP-REEL is suitable for various applications requiring precise analog-to-digital conversion, such as:
- Precision measurement systems.
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Multi-channel data acquisition systems.
Q & A
- What is the primary function of the AD652JP-REEL?
The AD652JP-REEL is a synchronous voltage-to-frequency converter, converting an analog voltage input into a proportional frequency output. - How does the AD652JP-REEL achieve high linearity and stability?
It uses an external clock to set the full-scale frequency, ensuring linearity and stability independent of variations in clock frequency. - What is the typical gain error of the AD652JP-REEL?
The typical gain error is ±1% for clock frequencies up to 1 MHz. - What is the operating temperature range for the JP grade of the AD652JP-REEL?
The operating temperature range for the JP grade is 0°C to +70°C. - Is the AD652JP-REEL compatible with TTL and CMOS logic?
Yes, the clock input of the AD652JP-REEL is TTL and CMOS compatible. - How many external components are required for the operation of the AD652JP-REEL?
Only one external component, a noncritical integrator capacitor, is required for operation. - What is the reference output voltage of the AD652JP-REEL?
The reference output voltage is 5.0 V with a drift of 50 ppm/°C. - Can the AD652JP-REEL operate from a single power supply?
Yes, the AD652JP-REEL can operate from a single-ended power source. - What are the key benefits of using laser-wafer-trimming in the AD652JP-REEL?
Laser-wafer-trimming reduces the initial gain error to less than 0.5%. - What are some common applications of the AD652JP-REEL?
Common applications include precision measurement systems, industrial control systems, medical devices, aerospace and defense systems, and multi-channel data acquisition systems.
