Key facts
- Brand
- Analog Devices
- Model
- AD7740
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-10
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Analog Devices AD7740 Low Power Voltage-to-Frequency Converter Datasheet
The AD7740 is a CMOS synchronous voltage‑to‑frequency converter that operates from a single 3.0 V‑3.6 V or 4.75 V‑5.25 V supply and consumes typically 0.9 mA. It offers a full‑scale output frequency set by an external clock up to 1 MHz and provides both buffered and unbuffered input modes, allowing true bipolar operation.
The document provides detailed specifications, timing characteristics, absolute maximum ratings, pin configurations, ordering information, and application examples such as temperature‑sensor interfacing and 32 kHz crystal operation.
Analog Devices AD7740 specifications
| Supply Voltage Range | 3.0 V‑3.6 V, 4.75 V‑5.25 V |
|---|---|
| Typical Power Consumption (Normal Mode) | 0.9 mA |
| Maximum Input Frequency | 1 MHz |
| Internal Reference Voltage | 2.5 V bandgap |
Source: Analog Devices AD7740 Low Power Voltage-to-Frequency Converter Datasheet
All Analog Devices AD7740 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage does the AD7740 operate from?
It operates from a single 3.0 V‑3.6 V or 4.75 V‑5.25 V supply.
From: Analog Devices AD7740 Low Power Voltage-to-Frequency Converter Datasheet
How does the AD7740 enter power‑down mode?
When the CLKIN input is inactive low for about 1 ms, the device automatically enters power‑down mode.
From: Analog Devices AD7740 Low Power Voltage-to-Frequency Converter Datasheet
What supply voltage does the AD7740 operate from?
It can be powered from 3.0 V‑3.6 V or from 4.75 V‑5.25 V supplies.
What is the typical current consumption in normal operation?
The AD7740 typically draws about 0.9 mA in normal mode.
What supply voltage does the AD7740 require?
It operates from a single 3.0 V‑3.6 V or 4.75 V‑5.25 V supply.
How does the AD7740 enter power‑down mode?
When the CLKIN input is inactive low for 1 ms, the device automatically enters power‑down, reducing consumption to about 525 µW at 5 V.