Key facts
- Brand
- Analog Devices
- Model
- AD7741
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD7741/AD7742 Voltage‑to‑Frequency Converter Datasheet
The AD7741 and AD7742 are synchronous voltage‑to‑frequency converters (VFCs) from Analog Devices. The AD7741 provides a single‑ended input in an 8‑lead package, while the AD7742 offers two differential or three pseudo‑differential inputs in a 16‑lead package. Both devices operate from a single +5 V supply, include an on‑chip 2.5 V reference, and feature power‑down capability.
The datasheet details functional block diagrams, pin functions, timing characteristics, absolute maximum ratings, and ordering information. It also defines the input ranges, output frequency limits, and performance parameters such as integral nonlinearity and power‑supply rejection.
Analog Devices AD7741 specifications
| Supply voltage range (VDD) | +4.75 V to +5.25 V |
|---|---|
| Normal‑mode supply current (ID D) | 8 mA |
| Power‑down supply current (ID D) | 15 mA (AD7741) / 35 mA (AD7742) |
| Input voltage range | 0 V to VREF (+2.5 V) for AD7741; –VREF to +VREF for AD7742 |
| Maximum output frequency | 0.45 × fCLKIN |
| Operating temperature range (Industrial) | –40 °C to +85 °C |
| Operating temperature range (Automotive) | –40 °C to +105 °C |
Source: Analog Devices AD7741/AD7742 Voltage‑to‑Frequency Converter Datasheet
All Analog Devices AD7741 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the supply voltage range for the AD7741/AD7742?
Both devices operate from a supply voltage of +4.75 V to +5.25 V.
From: Analog Devices AD7741/AD7742 Voltage‑to‑Frequency Converter Datasheet
How many input channels does the AD7742 provide?
The AD7742 has four buffered inputs that can be configured as two fully‑differential channels or three pseudo‑differential channels.
From: Analog Devices AD7741/AD7742 Voltage‑to‑Frequency Converter Datasheet
What supply voltage range does the AD7741/AD7742 operate from?
They operate from a single +5 V supply, specifically between +4.75 V and +5.25 V.
From: Analog Devices AD7741/AD7742 Voltage-to-Frequency Converter Datasheet
How low can the power‑down current be?
In power‑down mode the device draws as little as 35 pA (maximum).
From: Analog Devices AD7741/AD7742 Voltage-to-Frequency Converter Datasheet