Overview
The AD7470ARU is a 10-bit high-speed, low-power successive approximation Analog-to-Digital Converter (ADC) produced by Analog Devices Inc. This component operates from a single 2.7 V to 5.25 V power supply and is known for its high throughput rates and low power consumption. The AD7470ARU is part of the AD7470/AD7472 family, which includes both 10-bit and 12-bit versions, each designed to handle high-speed data acquisition with minimal power dissipation.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Throughput Rate | Up to 1.75 MSPS |
| Power Supply | 2.7 V to 5.25 V |
| Power Consumption | Typically 4 mW at 1.75 MSPS with 5 V supplies |
| Analog Input Range | 0 V to REF IN (externally applied 2.5 V reference) |
| Input Bandwidth | Wide bandwidth, handling input frequencies in excess of 1 MHz |
| Signal-to-Noise Ratio (SNR) | Typically 70 dB at 500 kHz input frequency |
| Package Type | 24-Lead SOIC and TSSOP |
| Operating Temperature | –40°C to +85°C |
| Sleep Mode Current | Typically 50 nA |
Key Features
- High throughput rates with low power consumption: The AD7470ARU offers up to 1.75 MSPS throughput while consuming only 4 mW of power at 5 V supplies.
- Flexible power/throughput rate management: The conversion rate is controlled by an externally applied clock, allowing power reduction as the conversion rate decreases.
- No pipeline delays: The ADC features a standard successive approximation architecture with accurate control of the sampling instant via the CONVST input.
- Auto sleep mode: The part can operate in an auto sleep mode to maximize power efficiency at lower throughput rates.
- High-speed parallel interface: The conversion result is accessed via standard CS and RD signals.
- Wide input bandwidth: The track-and-hold amplifier can handle input frequencies in excess of 1 MHz.
Applications
The AD7470ARU is suitable for a variety of high-speed data acquisition applications, including:
- Medical imaging and diagnostics
- Aerospace and defense systems
- Industrial control and automation
- High-speed data logging and monitoring systems
- Communication systems requiring high-speed ADCs
Q & A
- What is the resolution of the AD7470ARU?
The AD7470ARU has a resolution of 10 bits. - What is the maximum throughput rate of the AD7470ARU?
The maximum throughput rate of the AD7470ARU is up to 1.75 MSPS. - What is the power supply range for the AD7470ARU?
The AD7470ARU operates from a single 2.7 V to 5.25 V power supply. - How much power does the AD7470ARU consume at 1.75 MSPS with 5 V supplies?
The AD7470ARU typically consumes 4 mW of power at 1.75 MSPS with 5 V supplies. - What is the analog input range for the AD7470ARU?
The analog input range for the AD7470ARU is 0 V to REF IN, where REF IN is an externally applied 2.5 V reference. - Does the AD7470ARU have pipeline delays?
No, the AD7470ARU does not have pipeline delays. - What is the sleep mode current consumption of the AD7470ARU?
The sleep mode current consumption of the AD7470ARU is typically 50 nA. - What types of packages are available for the AD7470ARU?
The AD7470ARU is available in 24-Lead SOIC and TSSOP packages. - What is the operating temperature range for the AD7470ARU?
The operating temperature range for the AD7470ARU is –40°C to +85°C. - How is the conversion rate controlled in the AD7470ARU?
The conversion rate is controlled by an externally applied clock.
