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Vedi Specifiche Tecniche

LM231H +BOM

Voltage to Frequency & Frequency to Voltage

Produttore:

Texas Instruments, Inc
ProduttorePart #:

LM231H
Scheda dati:

LM231H Scheda dati (PDF)
Pacchetto/custodia:

CAN8
Tipologia di prodotto:

Data Conversion ICs
Ciclo vitale:

Unconfirmed
EDA/CAD Modelli:

Richiedi modelli CAD gratuiti per LM231H

E-mail: [email protected]

Skype: live:.cid.ab6b29428937b76

tel: +852 95804164

LM231H Descrizione generale

The LMx31 family of voltage-to-frequency converters are ideally suited for use in simple low-cost circuits for analog-to-digital conversion, precision frequency-to-voltage conversion, long-term integration, linear frequency modulation or demodulation, and many other functions. The output when used as a voltage-to-frequency converter is a pulse train at a frequency precisely proportional to the applied input voltage. Thus, it provides all the inherent advantages of the voltage-to-frequency conversion techniques, and is easy to apply in all standard voltage-to-frequency converter applications.

Further, the LMx31A attain a new high level of accuracy versus temperature which could only be attained with expensive voltage-to-frequency modules. Additionally the LMx31 are ideally suited for use in digital systems at low power supply voltages and can provide low-cost analog-to-digital conversion in microprocessor-controlled systems. And, the frequency from a battery-powered voltage-to-frequency converter can be easily channeled through a simple photo isolator to provide isolation against high common-mode levels.

The LMx31 uses a new temperature-compensated band-gap reference circuit, to provide excellent accuracy over the full operating temperature range, at power supplies as low as 4 V. The precision timer circuit has low bias currents without degrading the quick response necessary for 100-kHz voltage-to-frequency conversion. And the output are capable of driving 3 TTL loads, or a high-voltage output up to 40 V, yet is short-circuit-proof against VCC.

Caratteristiche principali

Ensured Linearity 0.01% Maximum
Improved Performance in Existing Voltage-to-
Frequency Conversion Applications
Split or Single-Supply Operation
Operates on Single 5-V Supply
Pulse Output Compatible With All Logic Forms
Excellent Temperature Stability: ±50 ppm/°C
Maximum
Low Power Consumption: 15 mW Typical at 5 V
Wide Dynamic Range, 100 dB Minimum at 10-kHz
Full Scale Frequency
Wide Range of Full Scale Frequency:
1 Hz to 100 kHz
Low-Cost

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