Overview
The AD7450ARMZ-REEL7, produced by Analog Devices Inc., is a high-performance, 12-bit successive approximation (SAR) analog-to-digital converter (ADC). This component features a fully differential analog input and is designed for low power consumption and high throughput rates. It operates from a single 3 V or 5 V power supply, making it versatile for various applications. The AD7450 is particularly notable for its advanced design techniques that minimize power dissipation while maintaining high throughput rates, making it an ideal choice for power-sensitive and high-speed data acquisition systems.
Key Specifications
| Parameter | Conditions/Comments | Value |
|---|---|---|
| Resolution | 12 bits | |
| Throughput Rate | VDD = 5 V | 1 MSPS max |
| VDD = 3 V | 833 kSPS max | |
| Power Supply | 3 V ± 10% or 5 V ± 5% | |
| Power Consumption | Normal Mode (Static), VDD = 3 V/5 V | 0.5 mA typ |
| Normal Mode (Operational), VDD = 5 V, fSAMPLE = 1 MSPS | 1.8 mA max | |
| Normal Mode (Operational), VDD = 3 V, fSAMPLE = 833 kSPS | 1.25 mA max | |
| Signal-to-(Noise + Distortion) Ratio (SINAD) | VDD = 5 V | 70 dB min |
| VDD = 3 V | 68 dB min | |
| Total Harmonic Distortion (THD) | VDD = 5 V | -80 dB typ |
| Conversion Time | With an 18 MHz SCLK | 888 ns |
| Track-and-Hold Acquisition Time | 200 ns max | |
| Reference Voltage Range | 100 mV to 3.5 V |
Key Features
- High Throughput Rates: Up to 1 MSPS with a 5 V power supply and up to 833 kSPS with a 3 V power supply.
- Low Power Consumption: Advanced design techniques ensure low power dissipation, with a maximum power consumption of 3.75 mW at 833 kSPS with a 3 V supply.
- Fully Differential Analog Input: Allows for flexible input ranges and bias points, enhancing the component's versatility.
- Variable Reference Voltage Input: The reference voltage can be varied from 100 mV to 3.5 V, depending on the application.
- No Pipeline Delay: The SAR architecture ensures that there are no pipeline delays, providing accurate and timely data conversion.
- Shutdown Mode: Maximizes power efficiency at lower throughput rates.
- Accurate Sampling Control: The conversion and data acquisition processes are controlled using the CS and serial clock inputs, allowing precise control over the sampling instant.
Applications
- Data Acquisition Systems: Ideal for high-speed and low-power data acquisition applications.
- Industrial Automation: Suitable for industrial control systems that require precise and high-speed data conversion.
- Medical Devices: Can be used in medical equipment that demands high accuracy and low power consumption.
- Aerospace and Defense: Applicable in various aerospace and defense systems where high reliability and performance are critical.
- Automotive Systems: Useful in automotive applications that require robust and efficient data conversion.
Q & A
- What is the resolution of the AD7450ARMZ-REEL7?
The AD7450ARMZ-REEL7 has a resolution of 12 bits.
- What are the possible power supply voltages for the AD7450ARMZ-REEL7?
The component can operate with either a 3 V or 5 V power supply.
- What is the maximum throughput rate of the AD7450ARMZ-REEL7?
The maximum throughput rate is 1 MSPS with a 5 V power supply and 833 kSPS with a 3 V power supply.
- What is the typical power consumption of the AD7450ARMZ-REEL7 at 833 kSPS?
The typical power consumption is 1.25 mA at 833 kSPS with a 3 V power supply.
- Does the AD7450ARMZ-REEL7 have a pipeline delay?
No, the SAR architecture of the AD7450ARMZ-REEL7 ensures there are no pipeline delays.
- What is the range of the reference voltage for the AD7450ARMZ-REEL7?
The reference voltage can be varied from 100 mV to 3.5 V.
- How is the conversion process controlled in the AD7450ARMZ-REEL7?
The conversion and data acquisition processes are controlled using the CS and serial clock inputs.
- What is the typical signal-to-(noise + distortion) ratio (SINAD) of the AD7450ARMZ-REEL7?
The typical SINAD is 70 dB with a 5 V power supply and 68 dB with a 3 V power supply.
- What is the maximum track-and-hold acquisition time of the AD7450ARMZ-REEL7?
The maximum track-and-hold acquisition time is 200 ns.
- Does the AD7450ARMZ-REEL7 have a shutdown mode?
