Overview
The AD7741BRZ, manufactured by Analog Devices Inc., is a single-channel synchronous Voltage-to-Frequency Converter (VFC) that utilizes a charge-balance conversion technique. This device operates from a single +5 V supply and includes an on-chip +2.5 V bandgap reference. It features a proprietary programmable gain front-end and an analog modulator that converts the input voltage into an output pulse train. The AD7741BRZ is packaged in an SO-8 package and is RoHS compliant.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage (VDD) | +4.75 V to +5.25 V |
| Reference Voltage (VREF) | +2.5 V |
| Master Clock Frequency (fCLKIN) | Up to 6.144 MHz |
| Input Voltage Range | +0.5 V to VDD - 1.75 V |
| Package Type | SO-8 |
| Operating Temperature Range | TMIN to TMAX (specified in datasheet) |
Key Features
- Single-channel synchronous Voltage-to-Frequency Converter (VFC)
- Charge-balance conversion technique
- On-chip +2.5 V bandgap reference
- Programmable gain front-end
- High impedance buffered input stage
- Common-mode noise rejection
- Single +5 V supply operation
- SO-8 package and RoHS compliant
Applications
The AD7741BRZ is suitable for various applications requiring precise voltage-to-frequency conversion, such as industrial control systems, medical devices, and data acquisition systems. Its high impedance input stage and common-mode noise rejection make it ideal for environments with significant external source impedances and noise.
Q & A
- What is the primary function of the AD7741BRZ?
The AD7741BRZ is a single-channel synchronous Voltage-to-Frequency Converter (VFC) that converts an input voltage into an output pulse train. - What is the supply voltage range for the AD7741BRZ?
The supply voltage range is +4.75 V to +5.25 V. - What is the reference voltage for the AD7741BRZ?
The reference voltage is +2.5 V. - What is the maximum master clock frequency for the AD7741BRZ?
The maximum master clock frequency is up to 6.144 MHz. - What is the input voltage range for the AD7741BRZ?
The input voltage range is +0.5 V to VDD - 1.75 V. - What package type is the AD7741BRZ available in?
The AD7741BRZ is available in an SO-8 package. - Is the AD7741BRZ RoHS compliant?
Yes, the AD7741BRZ is RoHS compliant. - What are some typical applications for the AD7741BRZ?
Typical applications include industrial control systems, medical devices, and data acquisition systems. - How does the AD7741BRZ handle common-mode noise?
The AD7741BRZ uses differential inputs to provide common-mode noise rejection. - What is the significance of the high impedance input stage in the AD7741BRZ?
The high impedance input stage allows for significant external source impedances.
