Overview
The MAX11905ETP+ is a 20-bit, 1.6Msps (mega-samples per second), single-channel, fully differential Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is notable for its excellent static and dynamic performance, coupled with best-in-class power consumption that scales directly with throughput. The MAX11905 features internal reference buffers and operates with a unipolar differential input range.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 20 bits |
| Sampling Rate | 1.6 Msps |
| Input Range | Unipolar differential ±VREF |
| Supply Voltages | 3.3V (reference buffers), 1.8V (analog), 1.8V (digital), 1.5V to 3.6V (digital interface) |
| Signal-to-Noise Ratio (SNR) | 98.3 dB |
| Total Harmonic Distortion (THD) | -123 dB |
| Integral Non-Linearity (INL) | 6 LSB (max) |
| No-Missing Codes | Guaranteed |
| Interface | SPI-compatible serial interface |
| Package | 20-pin, 4mm x 4mm TQFN |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Low power consumption that scales with throughput.
- Excellent static and dynamic performance.
- Internal reference buffers.
- Unipolar differential input range.
- SPI-compatible serial interface for data communication.
- Compact 20-pin, 4mm x 4mm TQFN package.
- Wide operating temperature range of -40°C to +85°C.
Applications
The MAX11905 is suitable for a variety of applications that require high-resolution and low-power analog-to-digital conversion. These include:
- Industrial automation and control systems.
- Medical devices, such as diagnostic equipment and patient monitoring systems.
- Aerospace and defense applications requiring high precision and reliability.
- Automotive systems, including advanced driver-assistance systems (ADAS) and autonomous vehicles.
- Test and measurement equipment.
Q & A
- What is the resolution of the MAX11905 ADC?
The MAX11905 has a resolution of 20 bits. - What is the sampling rate of the MAX11905?
The sampling rate is 1.6 Msps. - What is the input range of the MAX11905?
The input range is unipolar differential ±VREF. - What are the supply voltages for the MAX11905?
The supply voltages include 3.3V for the reference buffers, 1.8V for the analog supply, 1.8V for the digital supply, and 1.5V to 3.6V for the digital interface. - What is the signal-to-noise ratio (SNR) of the MAX11905?
The SNR is 98.3 dB. - What is the total harmonic distortion (THD) of the MAX11905?
The THD is -123 dB. - What is the package type and size of the MAX11905?
The MAX11905 is packaged in a 20-pin, 4mm x 4mm TQFN package. - What is the operating temperature range of the MAX11905?
The operating temperature range is -40°C to +85°C. - How does the MAX11905 communicate data?
The MAX11905 communicates data using a SPI-compatible serial interface. - Is there an evaluation kit available for the MAX11905?
Yes, an evaluation kit is available that demonstrates the MAX11905 and includes a graphical user interface (GUI) for communication with the Avnet ZedBoard development board.
