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| A voltage to frequency converter IC which is ideally suited for use in simple low-cost circuits for A/D conversion, F/V conversion, linear frequency modulation or demodulation and many other functions. The output when used as a V/F converter is a pulse train at a frequency precisely proportional to the applied input voltage. Features include: |
| full scale frequencies from 1Hz to 100kHz attainable; dynamic range of 100dB at 10kHz full scale; non- linearity typically ▒0· 003% full scale; and excellent temperature stability typically ▒30ppm/°C. |
| Specifications (typical at 25°C): |
| Supply voltage: |
4· 5V to 40V |
| Reference voltage (pin 2): |
1· 89V |
| Supply current: |
3mA at Vs = 5V |
| Parts List for Precision Voltage-to-Frequency Converter |
| R1,2,3 |
Min Res 10k |
(M10K) |
| R6,7 |
Min Res 100k |
(M100K) |
| RV1 |
22-Turn Cermet 5k |
(UH24B) |
| C1 |
Poly Layer 0· 01╡F |
(WW29G) |
| C2 |
Mylar 0· 0047╡F |
(WW17T) |
| Parts List for Frequency-to-Voltage Converter |
| RV1 |
22-Turn Cermet 5k |
(UH24B) |
| C1 |
Poly Layer 0· 01╡F |
(WW29G) |
| C2 |
PC Elect 1╡F 100V |
(FF01B) |
| C3 |
Polystyrene 470pF |
(BX32K) |
| Parts List for Temperature to Frequency Converter |
| R2 |
Min Res 120 |
(M120R) |
| RV1 |
22-Turn Cermet 5k |
(UH24B) |
| C1 |
Poly Layer 0· 1╡F |
(WW41U) |
| C2 |
Poly Layer 0· 01╡F |
(WW29G) |
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