Overview
The AD7457BRT-R2 is a 12-bit, 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 of up to 100 kSPS and is packaged in an 8-lead SOT-23 package, making it suitable for a variety of applications requiring compact and efficient data conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Throughput Rate | Up to 100 kSPS |
| Power Supply | 2.7 V to 5.25 V |
| Power Consumption | 0.9 mW (max) at 3 V and 100 kSPS |
| Analog Input Type | Pseudo differential |
| Reference Voltage | 100 mV to VDD |
| Package Type | 8-lead SOT-23 |
| Operating Temperature Range | -40°C to +85°C |
| Interface Compatibility | SPI, QSPI, MICROWIRE, DSP-compatible |
Key Features
- Low power consumption with automatic power-down mode after conversion.
- Flexible power and serial clock speed management to reduce power consumption.
- No pipeline delays due to SAR architecture.
- High speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- Variable voltage reference input from 100 mV to VDD.
- Low noise, wide bandwidth differential track-and-hold (T/H) amplifier.
Applications
- Transducer interface.
- Battery-powered systems.
- Data acquisition systems.
- Portable instrumentation.
Q & A
- What is the resolution of the AD7457BRT-R2? The AD7457BRT-R2 has a resolution of 12 bits.
- What is the maximum throughput rate of the AD7457BRT-R2? The maximum throughput rate is up to 100 kSPS.
- What is the power supply range for the AD7457BRT-R2? The power supply range is from 2.7 V to 5.25 V.
- How much power does the AD7457BRT-R2 consume at 3 V and 100 kSPS? The power consumption is 0.9 mW (max) at 3 V and 100 kSPS.
- What type of analog input does the AD7457BRT-R2 have? The AD7457BRT-R2 has a pseudo differential analog input.
- What is the range for the reference voltage of the AD7457BRT-R2? The reference voltage can range from 100 mV to VDD.
- In what package is the AD7457BRT-R2 available? The AD7457BRT-R2 is available in an 8-lead SOT-23 package.
- What is the operating temperature range for the AD7457BRT-R2? The operating temperature range is -40°C to +85°C.
- Is the AD7457BRT-R2 compatible with any specific interfaces? Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- Does the AD7457BRT-R2 have any pipeline delays? No, the AD7457BRT-R2 does not have any pipeline delays due to its SAR architecture.
