AD652
NOT RECOMMENDED FOR NEW DESIGNSMonolithic Synchronous Voltage-to-Frequency Converter
- Part Models
- 11
- 1ku List Price
- Starting From $19.37
Part Details
- Full-Scale Frequency (up to 2 MHz) set by external system clock
- Extremely low linearity error (0.005% max at 1 MHz FS, 0.02% max at 2 MHz FS)
- No critical external components required
- Accurate 5V reference voltage
- Low drift (25 ppm/°C max)
- Dual- or single-supply operation
- Voltage or current input
- MIL-STD-883 compliant versions available
The AD652 Synchronous Voltage-to-Frequency Converter (SVFC) is a powerful building block for precision analog-to-digital conversion, offering typical nonlinearity of 0.002% (0.005% maximum) at a 100 kHz output frequency. The inherent monotonicity of the transfer function and wide range of clock frequencies allows the conversion time and resolution to be optimized for specific applications.
The AD652 uses a variation of the popular charge-balancing technique to perform the conversion function. The AD652 uses an external clock to define the full-scale output frequency, rather than relying on the stability of an external capacitor. The result is a more stable, more linear transfer function, with significant application benefits in both single and multichannel systems.
Gain drift is minimized using a precision low drift reference and low TC on-chip thin-film scaling resistors. Furthermore, the initial gain error is reduced to less than 0.5% by the use of laser-wafer-trimming.
The analog and digital sections of the AD652 have been designed to allow operation from a single-ended power source, simplifying its use with isolated power supplies.
The AD652 is available in five performance grades. The 20-pin PLCC packaged JP and KP grades are specified for operation over the 0°C to +70°C commercial temperature range. The 16-pin CERDIP-packaged AQ and BQ grades are specified for operation over the -40°C to +85°C industrial temperature range, and the AD652SQ is available for operation over the full -55°C to +125°C extended temperature range.
Documentation
Data Sheet 2
Application Note 2
Frequently Asked Question 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| 5962-9322201MEA | 16-Lead CerDIP | ||
| AD652AQ | 16-Lead CerDIP | ||
| AD652AQ/+ | 16-Lead CerDIP | ||
| AD652BQ | 16-Lead CerDIP | ||
| AD652JPZ | 20-Lead Flatpack | ||
| AD652JPZ-REEL | 20-Lead Flatpack | ||
| AD652JPZ-REEL7 | 20-Lead Flatpack | ||
| AD652KPZ | 20-Lead Flatpack | ||
| AD652KPZ-REEL | 20-Lead Flatpack | ||
| AD652SE/883B | 20-Lead LCC | ||
| AD652SQ | 16-Lead CerDIP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 16, 2025 - 25_0091 Qualification of Wafer Fabrication Site Analog Devices, Inc. Camas WA for (Bipolar) Products |
||
| 5962-9322201MEA | ||
| AD652AQ | ||
| AD652AQ/+ | ||
| AD652BQ | ||
| AD652JPZ | ||
| AD652JPZ-REEL | ||
| AD652JPZ-REEL7 | ||
| AD652KPZ | ||
| AD652KPZ-REEL | ||
| AD652SE/883B | ||
| AD652SQ | ||
|
Apr 9, 2018 - 16_0026 Qualify TeamQuest Technology, Inc. for Burn-in and Life Test of Military and Aerospace Devices |
||
| 5962-9322201MEA | ||
| AD652AQ/+ | ||
| AD652SE/883B | ||
|
Nov 7, 2012 - 12_0199 Qualification of New Conductive Silver-Filled Glass Die Attach Adhesive for Cerdip and Ceramic Flatpack (Cerpack) Packages. |
||
| 5962-9322201MEA | ||
| AD652AQ | ||
| AD652AQ/+ | ||
| AD652BQ | ||
| AD652SQ | ||
|
Jun 6, 2012 - 12_0066 Add capacity for Burn In of Hermetic, 883 & QMLQ/Class B devices at TSSI Cavite |
||
| 5962-9322201MEA | ||
| AD652AQ/+ | ||
| AD652SE/883B | ||
|
Nov 9, 2011 - 11_0050 Transfer of ADI Hermetics Assembly location from Paranaque, Manila to General Trias, Cavite Philippines |
||
| 5962-9322201MEA | ||
| AD652AQ | ||
| AD652AQ/+ | ||
| AD652BQ | ||
| AD652SE/883B | ||
| AD652SQ | ||
|
Nov 9, 2011 - 11_0182 Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines |
||
| 5962-9322201MEA | ||
| AD652AQ | ||
| AD652AQ/+ | ||
| AD652BQ | ||
| AD652JPZ | ||
| AD652JPZ-REEL | ||
| AD652JPZ-REEL7 | ||
| AD652KPZ | ||
| AD652KPZ-REEL | ||
| AD652SE/883B | ||
| AD652SQ | ||
This is the most up-to-date revision of the Data Sheet.