AD650SD/883B - V/F & F/V Converter 1MHz | Analog Devices
MPN: AD650SD/883B ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $92.04 | $92.04 |
| 10 | $85.5 | $855.00 |
| 100 | $78 | $7,800.00 |
| 500 | $70 | $35,000.00 |
| 1,000 | $65 | $65,000.00 |
Drop-in alternatives for AD650SD/883B — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
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AD650AD
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AD654JN
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AD650SD/883B Maximum Ratings & Electrical Characteristics
| Converter Type | Voltage-to-Frequency / Frequency-to-Voltage |
| Maximum Frequency | 1 MHz |
| Nonlinearity | ±0.1% typical |
| Supply Voltage Range | ±9V to ±18V |
| Input Voltage Range | 0V to +10V (single-ended) |
| Output Type | Square wave, TTL/CMOS compatible |
| Operating Temperature Range | -55°C to +125°C |
| Package Type | 14-pin CDIP (Ceramic DIP) |
| Mounting Type | Through Hole |
| Power Dissipation | 150 mW typical |
| Input Impedance | 10 kΩ typical |
| Output Frequency Range | 0 Hz to 1 MHz |
| Temperature Coefficient | ±50 ppm/°C typical |
| RoHS Status | Non-compliant (military grade) |
| Military Grade | Yes (883B compliant) |
AD650SD/883B Pin Configuration
| Pin 1 | V+ — Positive supply voltage |
| Pin 2 | IN — Analog input voltage |
| Pin 3 | GND — Ground |
| Pin 4 | OUT — Frequency output |
| Pin 5 | NC — No connection |
| Pin 6 | NC — No connection |
| Pin 7 | V- — Negative supply voltage |
| Pin 8 | NC — No connection |
| Pin 9 | NC — No connection |
| Pin 10 | NC — No connection |
| Pin 11 | NC — No connection |
| Pin 12 | NC — No connection |
| Pin 13 | NC — No connection |
| Pin 14 | NC — No connection |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD650SD/883B is suitable for 6 applications: Precision Analog-to-Digital Conversion, Frequency-to-Voltage Conversion for Tachometers, Isolated Signal Transmission, Aerospace Telemetry, Test and Measurement Instrumentation, Industrial Process Control.
Precision Analog-to-Digital Conversion
The AD650SD/883B converts analog voltage signals into a frequency output that can be counted by digital logic, providing high-resolution ADC with excellent noise immunity. Its 1 MHz full-scale frequency and ±0.1% nonlinearity ensure accurate conversion for industrial and aerospace data acquisition systems. The wide temperature range allows operation in harsh environments, and the charge-balancing architecture minimizes drift over time.
Recommended
Frequency-to-Voltage Conversion for Tachometers
In tachometer applications, the AD650SD/883B converts the frequency output of a speed sensor into a proportional voltage for display or control. Its high accuracy and temperature stability ensure reliable speed measurement in automotive and industrial engines. The device's ability to operate in F/V mode with the same precision makes it a versatile solution for rotational speed monitoring.
Recommended
Isolated Signal Transmission
The AD650SD/883B is ideal for isolated signal transmission in industrial control systems. By converting a voltage signal to frequency, it can be transmitted across an isolation barrier using optocouplers or transformers, then converted back to voltage at the receiving end. This method provides high noise immunity and galvanic isolation, essential for safety in high-voltage environments.
Recommended
Aerospace Telemetry
In aerospace telemetry, the AD650SD/883B is used to convert sensor signals into frequency for transmission over long distances. Its military-grade temperature range and MIL-STD-883B compliance ensure reliable operation in extreme conditions. The device's high accuracy and low drift are critical for maintaining data integrity in flight test and satellite applications.
Recommended
Test and Measurement Instrumentation
The AD650SD/883B is used in precision test equipment such as digital multimeters and frequency counters. Its ability to convert voltage to frequency with high linearity enables accurate measurement of analog signals. The wide supply voltage range and robust design make it suitable for benchtop and portable instruments.
Recommended
Industrial Process Control
In industrial process control, the AD650SD/883B converts transducer outputs (e.g., temperature, pressure) into frequency signals that are immune to noise and can be easily interfaced with digital controllers. Its high accuracy and stability ensure precise control in manufacturing and chemical processing. The device's wide temperature range allows use in harsh plant environments.
Recommended
Recommended Products Summary
Engineering reference data for AD650SD/883B — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD650SD | AD650AD | AD650BD |
|---|---|---|---|---|
| Package | 14-CDIP | 14-CDIP | 14-CDIP | 14-CDIP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Maximum Frequency | 1 MHz | 1 MHz | 1 MHz | 1 MHz |
| Nonlinearity | ±0.1% | ±0.1% | ±0.1% | ±0.1% |
| Supply Voltage Range | ±9V to ±18V | ±9V to ±18V | ±9V to ±18V | ±9V to ±18V |
| Operating Temperature Range | -55°C to +125°C | -55°C to +125°C | -25°C to +85°C | -25°C to +85°C |
| Military Grade | Yes (883B) | No | No | No |
| RoHS Compliance | Non-compliant | Non-compliant | Non-compliant | Non-compliant |
Key Differentiators
- Military-grade screening (MIL-STD-883B) (vs AD650SD)
- Extended temperature range (vs AD650AD)
- Same package and pinout (vs AD650SD)
Design Notes
The AD650SD/883B requires dual supplies of ±9V to ±18V. Use 0.1µF ceramic capacitors close to the V+ and V- pins to decouple high-frequency noise. A 10µF tantalum capacitor on each supply is recommended for low-frequency stability.
For optimal performance, keep the input signal path short and shielded. Use a ground plane to minimize noise pickup. The output frequency signal should be buffered if driving long cables to prevent reflections.
Do not exceed the absolute maximum supply voltage of ±18V. Ensure the input voltage does not exceed the specified range to avoid damage. The device is not RoHS compliant, so handle according to military specifications.
Compliance Information
Military-grade component, not RoHS compliant. No AEC-Q100 qualification as it is not an automotive part.
