Overview
The AD7452BRT-R2 is a 12-bit, high-speed, low-power successive approximation (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed to operate with either a 3 V or 5 V power supply, offering high throughput rates of up to 555 kSPS. It features a fully differential analog input and a low noise, wide bandwidth differential track-and-hold amplifier (T/H) capable of handling input frequencies up to 3.5 MHz.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate (Per Second) | Up to 555 kSPS |
| Supply Voltage | 3 V or 5 V |
| Reference Type | External |
| Input Type | Fully Differential |
| Package | 8-lead SOT-23 |
| Operating Temperature | -40°C to 85°C |
| Power Consumption (at 3 V, 555 kSPS) | 3.3 mW max |
| Power-Down Current | 1 μA max |
| Data Interface | SPI, QSPI, MICROWIRE, DSP compatible |
Key Features
- High throughput with low power consumption
- Fully differential analog input
- Flexible power and serial clock speed management
- No pipeline delays due to SAR architecture
- Low noise, wide bandwidth differential track-and-hold amplifier
- External reference voltage input (100 mV to 3.5 V for 5 V supply, 100 mV to 2.2 V for 3 V supply)
- Power-down mode for reduced power consumption
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP
Applications
- Transducer interface
- Battery-powered systems
- Data acquisition systems
- Portable instrumentation
- Motor control systems
Q & A
- What is the maximum sampling rate of the AD7452BRT-R2?
The AD7452BRT-R2 can sample at rates up to 555 kSPS.
- What are the supported power supply voltages for the AD7452BRT-R2?
The device can operate with either a 3 V or 5 V power supply.
- What type of analog input does the AD7452BRT-R2 have?
The AD7452BRT-R2 features a fully differential analog input.
- What is the maximum reference voltage for the AD7452BRT-R2 when using a 5 V supply?
The maximum reference voltage is 3.5 V when using a 5 V supply.
- What is the power consumption of the AD7452BRT-R2 at 3 V and 555 kSPS?
The power consumption is 3.3 mW max at 3 V and 555 kSPS.
- Does the AD7452BRT-R2 have pipeline delays?
No, the SAR architecture ensures there are no pipeline delays.
- What is the operating temperature range of the AD7452BRT-R2?
The operating temperature range is -40°C to 85°C.
- What data interfaces are supported by the AD7452BRT-R2?
The device supports SPI, QSPI, MICROWIRE, and DSP compatible interfaces.
- How does the power-down feature work on the AD7452BRT-R2?
The power-down feature reduces power consumption to 1 μA max and is implemented through the standard serial interface.
- What is the package type of the AD7452BRT-R2?
The device is housed in an 8-lead SOT-23 package.
