Overview
The AD7451BRM, produced by Analog Devices Inc., is a 12-bit, high-speed, low-power successive approximation (SAR) analog-to-digital converter (ADC). 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 |
|---|---|---|
| Resolution | 12-bit | |
| Throughput Rate | Up to 1 MSPS | |
| Power Supply | 2.7 V to 5.25 V | V |
| Power Consumption (at 3 V, 1 MSPS) | 4 mW max | mW |
| Input Type | Pseudo differential | |
| Signal-to-Noise Ratio (SNR) at 100 kHz | 70 dB min | dB |
| Total Harmonic Distortion (THD) | Typically low, specific values dependent on VDD and fSCLK | |
| Reference Voltage Input Range | 100 mV to 3.5 V | V |
| Package Type | 8-Lead MSOP | |
| Operating Temperature Range | –40°C to +85°C | °C |
Key Features
- High throughput rate up to 1 MSPS with low power consumption.
- Pseudo differential analog input with a wide input bandwidth.
- Flexible power and serial clock speed management to reduce power consumption at lower throughput rates.
- No pipeline delays due to SAR architecture.
- Variable voltage reference input from 100 mV to 3.5 V.
- High speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- Power-down mode with a maximum current of 1 μA.
Applications
- Transducer interface.
- Battery-powered systems.
- Data acquisition systems.
- Portable instrumentation.
- Motor control.
- Communications.
Q & A
- What is the resolution of the AD7451BRM? The AD7451BRM is a 12-bit analog-to-digital converter.
- What is the maximum throughput rate of the AD7451BRM? The maximum throughput rate is up to 1 MSPS.
- What is the power supply range for the AD7451BRM? The power supply range is from 2.7 V to 5.25 V.
- How much power does the AD7451BRM consume at 3 V and 1 MSPS? The power consumption is 4 mW max at 3 V and 1 MSPS.
- What type of analog input does the AD7451BRM have? The AD7451BRM features a pseudo differential analog input.
- What is the signal-to-noise ratio (SNR) of the AD7451BRM at 100 kHz input frequency? The SNR is 70 dB min at 100 kHz input frequency.
- Can the AD7451BRM be used in battery-powered systems? Yes, the AD7451BRM is suitable for battery-powered systems due to its low power consumption.
- What is the operating temperature range of the AD7451BRM? The operating temperature range is from –40°C to +85°C.
- Does the AD7451BRM have pipeline delays? No, the AD7451BRM does not have pipeline delays due to its SAR architecture.
- What is the reference voltage input range for the AD7451BRM? The reference voltage input range is from 100 mV to 3.5 V.
