Overview
The AD7740YRMZ-REEL7, produced by Analog Devices Inc., is a low-cost, ultrasmall synchronous Voltage-to-Frequency Converter (VFC). This component is designed for applications requiring compact size, low power consumption, and ease of use. It operates from a single supply voltage ranging from 3.0 V to 3.6 V or 4.75 V to 5.25 V, making it versatile for various system designs. The AD7740YRMZ-REEL7 is available in 8-lead SOT-23 and 8-lead MSOP packages, ensuring minimal space usage while maintaining high performance.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VDD) | 3.0 V to 3.6 V or 4.75 V to 5.25 V |
| Current Consumption (IDD) | Typically 0.9 mA |
| Input Frequency Range | Up to 1 MHz |
| Output Frequency Range | 10% to 90% of fCLKIN |
| Input Voltage Range (VIN) | 0 V to VREF (buffered mode), -0.15 V to VDD + 0.15 V (unbuffered mode) |
| Reference Voltage (VREF) | Internal 2.5 V, external reference up to VDD |
| Package Types | 8-lead SOT-23, 8-lead MSOP |
| Operating Temperature Range | -40°C to +105°C (Y Grade), 0°C to 85°C (K Grade) |
Key Features
- Synchronous operation with the external system clock.
- Full-scale frequency set by the external system clock.
- Low power consumption: typically 3 mW.
- Internal 2.5 V reference voltage, with the option to use an external reference up to VDD.
- High input impedance in buffered mode.
- Minimal external components required.
- Automatic power-down function.
- True bipolar operation capability with input voltage range extending 150 mV below GND.
Applications
- Isolation of high common-mode voltages.
- Low-cost analog-to-digital conversion.
- Battery monitoring.
- Automotive sensing.
Q & A
- What is the supply voltage range for the AD7740YRMZ-REEL7? The supply voltage range is from 3.0 V to 3.6 V or 4.75 V to 5.25 V.
- What is the typical current consumption of the AD7740YRMZ-REEL7? The typical current consumption is 0.9 mA.
- What is the maximum input frequency for the AD7740YRMZ-REEL7? The maximum input frequency is up to 1 MHz.
- What are the package options for the AD7740YRMZ-REEL7? The component is available in 8-lead SOT-23 and 8-lead MSOP packages.
- What is the operating temperature range for the AD7740YRMZ-REEL7? The operating temperature range is -40°C to +105°C (Y Grade) and 0°C to 85°C (K Grade).
- Does the AD7740YRMZ-REEL7 require external resistors and capacitors to set the output frequency? No, it does not require external resistors and capacitors to set the output frequency.
- Can the AD7740YRMZ-REEL7 operate in true bipolar mode? Yes, it can operate in true bipolar mode with the input voltage range extending 150 mV below GND.
- What are some common applications of the AD7740YRMZ-REEL7? Common applications include isolation of high common-mode voltages, low-cost analog-to-digital conversion, battery monitoring, and automotive sensing.
- Does the AD7740YRMZ-REEL7 have an automatic power-down function? Yes, it has an automatic power-down function.
- What is the input impedance in buffered mode for the AD7740YRMZ-REEL7? The input impedance is very high in buffered mode.
