Overview
The AD7741BRZ-REEL7 is a single-channel, synchronous voltage-to-frequency converter (VFC) produced by Analog Devices Inc. This component is part of the AD7741 series and is designed for applications requiring precise conversion of analog voltage signals into digital frequency signals. The AD7741BRZ-REEL7 operates from a single +5 V supply and features a high-accuracy, charge-balance conversion technique. It includes an on-chip +2.5 V bandgap reference, providing users with the option to use either the internal or an external reference. The device is packaged in an 8-lead SOIC package, making it suitable for a variety of space-constrained applications.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7741BRZ-REEL7 |
| Package | 8-Lead SOIC |
| Input Type | Single-Ended |
| Operating Temperature Range | -40°C to 85°C |
| Output Frequency (max) | 3.072 MHz |
| Vin Range (max) | 2.5 V p-p |
| Vs Span (min/max) | 4.75 V / 5.25 V |
| Linearity (max) | 2% |
| Power Consumption (Normal Mode) | 8 mA |
| Power Consumption (Power-Down) | 15-35 μA |
| RoHS Compliance | Yes |
Key Features
- Single-Channel Operation: The AD7741BRZ-REEL7 features a single buffered input channel, making it suitable for applications requiring the conversion of a single analog voltage signal.
- On-Chip Reference: Includes an on-chip +2.5 V bandgap reference, allowing the use of either the internal or an external reference.
- High Accuracy: Utilizes a charge-balance conversion technique to achieve high accuracy and linearity, with a maximum linearity of 2%.
- Low Power Consumption: Operates from a single +5 V supply and consumes typically 8 mA in normal mode, reducing to less than 35 μA in power-down mode.
- Programmable Gain Front-End: The analog input signal is applied to a proprietary programmable gain front-end, enhancing flexibility in various applications.
- Minimal External Components: Requires minimal external components, simplifying the design and implementation process.
Applications
- Low Cost Analog-to-Digital Conversion: Ideal for applications where cost-effective analog-to-digital conversion is required.
- Signal Isolation: The device's architecture provides inherent signal isolation, making it suitable for applications where signal integrity is critical.
- Industrial Automation: Can be used in various industrial automation applications where precise voltage-to-frequency conversion is necessary.
- Medical Devices: Suitable for medical devices that require accurate and reliable conversion of analog signals to digital frequency signals.
- Automotive Systems: Applicable in automotive systems where robust and accurate signal conversion is essential.
Q & A
- What is the primary function of the AD7741BRZ-REEL7?
The primary function of the AD7741BRZ-REEL7 is to convert analog voltage signals into digital frequency signals.
- What is the operating voltage range of the AD7741BRZ-REEL7?
The AD7741BRZ-REEL7 operates from a single +5 V supply, with a voltage span of 4.75 V to 5.25 V.
- What is the maximum output frequency of the AD7741BRZ-REEL7?
The maximum output frequency of the AD7741BRZ-REEL7 is 3.072 MHz.
- Does the AD7741BRZ-REEL7 have an on-chip reference?
Yes, the AD7741BRZ-REEL7 includes an on-chip +2.5 V bandgap reference.
- What is the power consumption of the AD7741BRZ-REEL7 in normal mode?
The AD7741BRZ-REEL7 consumes typically 8 mA in normal mode.
- What is the power consumption of the AD7741BRZ-REEL7 in power-down mode?
The power consumption in power-down mode is less than 35 μA.
- What type of input does the AD7741BRZ-REEL7 support?
The AD7741BRZ-REEL7 supports a single-ended input.
- Is the AD7741BRZ-REEL7 RoHS compliant?
Yes, the AD7741BRZ-REEL7 is RoHS compliant.
- What is the operating temperature range of the AD7741BRZ-REEL7?
The operating temperature range is -40°C to 85°C.
- What type of package does the AD7741BRZ-REEL7 come in?
The AD7741BRZ-REEL7 is packaged in an 8-lead SOIC package.
