Overview
The AD7451BRMZ is a 12-bit, high-speed, low-power, single-supply, successive approximation (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed to operate from a single power supply ranging from 2.7 V to 5.25 V and is known for its low power consumption and high throughput rates. The AD7451 features a pseudo differential analog input and an on-chip differential track-and-hold (T/H) amplifier, making it suitable for a variety of applications requiring precise and efficient data conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Power Supply | 2.7 V to 5.25 V |
| Throughput Rate | Up to 1 MSPS |
| Input Type | Pseudo differential analog input |
| Reference Voltage | 100 mV to VDD |
| Package Type | 8-lead MSOP |
| Power Consumption | 4 mW maximum at 3 V supply and 1 MSPS throughput rate |
| Power-Down Mode | 1 μA maximum |
| Serial Interface | SPI-/QSPI-/MICROWIRE-/DSP-compatible |
Key Features
- High throughput with low power consumption: Achieves up to 1 MSPS with a maximum power consumption of 4 mW at a 3 V supply.
- Pseudo differential analog input: Allows for flexible input configurations.
- On-chip differential track-and-hold amplifier: Handles input frequencies up to 3.5 MHz.
- External reference voltage: Can range from 100 mV to VDD.
- No pipeline delays: Ensured by the SAR ADC architecture.
- Power-down mode: Reduces power consumption to 1 μA maximum.
- High-speed serial interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
Applications
- Transducer interface: Suitable for interfacing with various transducers.
- Battery-powered systems: Ideal due to its low power consumption.
- Data acquisition systems: High throughput and low power make it suitable for data acquisition applications.
- Portable instrumentation: Used in portable and handheld measurement devices.
Q & A
- What is the resolution of the AD7451BRMZ?
The AD7451BRMZ has a resolution of 12 bits. - What is the operating voltage range of the AD7451BRMZ?
The device operates from a single power supply ranging from 2.7 V to 5.25 V. - What is the maximum throughput rate of the AD7451BRMZ?
The maximum throughput rate is up to 1 MSPS. - What type of analog input does the AD7451BRMZ have?
The device features a pseudo differential analog input. - What is the range of the external reference voltage for the AD7451BRMZ?
The external reference voltage can range from 100 mV to VDD. - What is the package type of the AD7451BRMZ?
The device is housed in an 8-lead MSOP package. - How much power does the AD7451BRMZ consume at maximum throughput?
At a 3 V supply and 1 MSPS throughput rate, the maximum power consumption is 4 mW. - Does the AD7451BRMZ have a power-down mode?
Yes, the device has a power-down mode that reduces power consumption to 1 μA maximum. - What types of serial interfaces are supported by the AD7451BRMZ?
The device supports SPI, QSPI, MICROWIRE, and DSP-compatible serial interfaces. - What are some common applications of the AD7451BRMZ?
Common applications include transducer interfaces, battery-powered systems, data acquisition systems, and portable instrumentation.
