AD654
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AD654

Low Cost Monolithic Voltage-to-Frequency Converter

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Part Details
Part Models 4
1ku List Price Starting From $7.15
Features
  • Low Cost
  • Single or Dual Supply, 5 V to 36 V,
    ±5 V to ±18 V
  • Full-Scale Frequency Up to 500 kHz
  • Minimum Number of External Components Needed
  • Versatile Input Amplifier
    Positive or Negative Voltage Modes
    Negative Current Mode
    High Input Impedance, Low Drift
  • Low Power: 2.0 mA Quiescent Current
  • Low Offset: 1 mV
Additional Details
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The AD654 is a monolithic V/F converter consisting of an input amplifier, a precision oscillator system, and a high current output stage. A single RC network is all that is required to set up any full scale (FS) frequency up to 500 kHz and any FS input voltage up to ±30 V. Linearity error is only 0.03% for a 250 kHz FS, and operation is guaranteed over an 80 dB dynamic range. The overall temperature coefficient (excluding the effects of external components) is typically ±50 ppm/°C. The AD654 operates from a single supply of 5 V to 36 V and consumes only 2.0 mA quiescent current.

The low drift (4 µV/°C typ) input amplifier allows operation directly from small signals such as thermocouples or strain gauges while offering a high (250 MΩ) input resistance. Unlike most V/F converters, the AD654 provides a square-wave output, and can drive up to 12 TTL loads, optocouplers, long cables, or similar loads.

Part Models 4
1ku List Price Starting From $7.15

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Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD654JNZ
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AD654JRZ
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AD654JRZ-REEL
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AD654JRZ-REEL7
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Product Lifecycle

PCN

Nov 9, 2011

- 11_0182

Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines

Aug 19, 2009

- 07_0024

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Nov 23, 2010

- 10_0004

Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor

AD654JRZ

PRODUCTION

AD654JRZ-REEL

PRODUCTION

AD654JRZ-REEL7

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Nov 9, 2011

- 11_0182

arrow down

Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines

Aug 19, 2009

- 07_0024

arrow down

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Nov 23, 2010

- 10_0004

arrow down

Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor

AD654JRZ

PRODUCTION

AD654JRZ-REEL

PRODUCTION

AD654JRZ-REEL7

PRODUCTION

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