Overview
The AD7451ART-R2 is a 12-bit, high-speed, low-power successive approximation (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component features a pseudo-differential analog input and operates from a single 2.7 V to 5.25 V power supply. It is designed for high throughput rates up to 1 MSPS and is particularly suited for applications requiring low power consumption and high accuracy.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 12 | - |
| Sampling Rate | 1 MSPS | - |
| Power Supply Voltage | 2.7 V to 5.25 V | V |
| Input Type | Pseudo-Differential | - |
| Operating Temperature | -40°C to 85°C | °C |
| Package Type | 8-Lead SOT-23 | - |
| Reference Type | External | - |
| Signal-to-Noise Ratio (SNR) | 70 dB min | dB |
| Total Harmonic Distortion (THD) | - | - |
Key Features
- High throughput rate up to 1 MSPS with low power consumption (4 mW max at 3 V supply and 1 MSPS throughput rate)
- Pseudo-differential analog input with a wide input bandwidth
- Flexible power and serial clock speed management
- No pipeline delays due to SAR architecture
- Variable voltage reference input (100 mV to 3.5 V)
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP
- Power-down mode with maximum current of 1 μA
Applications
- Transducer interfaces
- Battery-powered systems
- Data acquisition systems
- Portable instrumentation
- Motor control systems
- Communications systems
Q & A
- What is the resolution of the AD7451ART-R2 ADC?
The AD7451ART-R2 is a 12-bit analog-to-digital converter. - What is the maximum sampling rate of the AD7451ART-R2?
The maximum sampling rate is 1 MSPS. - What is the power supply voltage range for the AD7451ART-R2?
The power supply voltage range is from 2.7 V to 5.25 V. - What type of analog input does the AD7451ART-R2 have?
The AD7451ART-R2 has a pseudo-differential analog input. - What is the operating temperature range for the AD7451ART-R2?
The operating temperature range is from -40°C to 85°C. - What package types are available for the AD7451ART-R2?
The AD7451ART-R2 is available in an 8-Lead SOT-23 package. - Does the AD7451ART-R2 have pipeline delays?
No, the AD7451ART-R2 does not have pipeline delays due to its SAR architecture. - How does the AD7451ART-R2 manage power consumption?
The AD7451ART-R2 features flexible power and serial clock speed management, allowing power reduction as the conversion time is reduced through the serial clock speed increase. It also has a power-down mode. - What type of serial interface does the AD7451ART-R2 support?
The AD7451ART-R2 supports high-speed serial interfaces compatible with SPI, QSPI, MICROWIRE, and DSP. - What is the maximum power consumption of the AD7451ART-R2 at 1 MSPS throughput rate?
The maximum power consumption is 4 mW at a 3 V supply and 1 MSPS throughput rate.
