14-pin (N) package image

VFC320BP ACTIVE

Voltage-to-frequency and frequency-to-voltage converter with 0.1% linearity error at 1 MHz

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Quality information

Rating Catalog
RoHS Yes
REACH Yes
MSL rating / Peak reflow Level-NC-NC-NC
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Additional manufacturing information

Information included:

  • Fab location
  • Assembly location
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins PDIP (N) | 14
Operating temperature range (°C) -25 to 85
Package qty | Carrier 25 | TUBE

Features for the VFC320

  • HIGH LINEARITY: 12 to 14 bits
       ±0.005% max at 10kHz FS
       ±0.03% max at 100kHz FS
       ±0.1% typ at 1MHz FS
  • V/F OR F/V CONVERSION
  • 6-DECADE DYNAMIC RANGE
  • GAIN DRIFT: 20ppm/°C max
  • OUTPUT TTL/CMOS COMPATIBLE
  • APPLICATIONS
    • INEXPENSIVE A/D AND D/A CONVERTER
    • DIGITAL PANEL METERS
    • TWO-WIRE DIGITAL TRANSMISSION WITH NOISE IMMUNITY
    • FM MOD/DEMOD OF TRANSDUCER SIGNALS
    • PRECISION LONG TERM INTEGRATOR
    • HIGH RESOLUTION OPTICAL LINK FOR ISOLATION
    • AC LINE FREQUENCY MONITOR
    • MOTOR SPEED MONITOR AND CONTROL

Description for the VFC320

The VFC320 monolithic voltage-to-frequency and frequency-to-voltage converter provides a simple low cost method of converting analog signals into digital pulses. The digital output is an open collector and the digital pulse train repetition rate is proportional to the amplitude of the analog input voltage. Output pulses are compatible with TTL, and CMOS logic families.

High linearity (0.005%, max at 10kHz FS) is achieved with relatively few external components. Two external resistors and two external capacitors are required to operate. Full scale frequency and input voltage are determined by a resistor in series with—In and two capacitors (one-shot timing and input amplifier integration). The other resistor is a non-critical open collector pull-up (fOUT to +VCC). The VFC320 is available in two performance grades. The VFC320 is specified for the –25°C to +85°C, range.

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Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

A custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships tube or tray devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

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