Overview
The AD7274BUJZ-500RL7 is a high-speed, low-power, 12-bit successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single power supply ranging from 2.35V to 3.6V and features throughput rates of up to 3 million samples per second (MSPS). It is housed in an 8-lead Thin Small Outline Transistor (TSOT) package, offering significant space-saving advantages. The AD7274 is designed for high-speed data acquisition and is suitable for a variety of applications requiring precise and rapid analog-to-digital conversion.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Resolution | 12 | Bits | |
| Package Type | 8-Lead TSOT | ||
| Power Supply | 2.35 V to 3.6 V | V | Single supply |
| Throughput Rate | Up to 3 MSPS | MSPS | |
| Conversion Time | 250 ns max | ns | 12 SCLK cycles with SCLK at 48 MHz |
| Track-and-Hold Acquisition Time | 60 ns max | ns | |
| Input Frequency Range | Exceeds 30 MHz | MHz | |
| Reference Voltage Range | 1.2 V to VDD | V | External reference |
| Power Consumption (Normal Mode) | 5 mA max | mA | VDD = 3 V, SCLK on or off |
| Power-Down Current | 0.1 μA typ | μA | |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- High-Speed Conversion: Throughput rates of up to 3 MSPS with no pipeline delays.
- Low Power Consumption: Operates with low power dissipation, especially in power-down mode (0.1 μA typ).
- Wide Input Frequency Range: Can handle input frequencies exceeding 30 MHz.
- Flexible Reference Voltage: External reference voltage range from 1.2 V to VDD, allowing for a wide dynamic input range.
- Compact Packaging: Available in 8-lead TSOT and MSOP packages, offering space-saving advantages.
- Serial Interface Compatibility: Compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- Low Noise Track-and-Hold Amplifier: Ensures high-quality signal sampling and conversion.
Applications
The AD7274 is suitable for various high-speed data acquisition applications, including:
- Industrial control systems
- Medical devices requiring precise and rapid data conversion
- Aerospace and defense systems
- Automotive systems
- High-speed data logging and monitoring systems
Q & A
- What is the resolution of the AD7274 ADC?
The AD7274 has a resolution of 12 bits.
- What is the operating voltage range of the AD7274?
The AD7274 operates from a single power supply ranging from 2.35V to 3.6V.
- What is the maximum throughput rate of the AD7274?
The maximum throughput rate is up to 3 MSPS.
- What type of packages is the AD7274 available in?
The AD7274 is available in 8-lead TSOT and MSOP packages.
- What is the input frequency range that the AD7274 can handle?
The AD7274 can handle input frequencies exceeding 30 MHz.
- How is the conversion process controlled in the AD7274?
The conversion process is controlled using the CS (chip select) and the serial clock (SCLK).
- What is the power consumption of the AD7274 in normal mode?
The power consumption in normal mode is up to 5 mA.
- Does the AD7274 have a power-down mode?
Yes, the AD7274 has a power-down mode with a current consumption of 0.1 μA typ.
- What is the operating temperature range of the AD7274?
The operating temperature range is from −40°C to +125°C.
- Is the AD7274 compatible with any specific serial interfaces?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
