Overview
The MAX11903ETP+ is an 18-bit, 1.6Msps, single-channel, fully differential Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is renowned for its excellent static and dynamic performance, coupled with best-in-class power consumption that scales directly with throughput. The MAX11903 features internal reference buffers and a unipolar differential ±VREF input range, making it highly versatile for various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 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 dB at f_IN = 10 kHz |
| Total Harmonic Distortion (THD) | -123 dB at f_IN = 10 kHz |
| Integral Nonlinearity (INL) | ±2 LSB (max) |
| Differential Nonlinearity (DNL) | ±0.5 LSB (max) |
| Power Consumption | 9 mW at 1.6 Msps |
| Package | 20-pin, 4mm x 4mm, TQFN |
| Operating Temperature Range | -40°C to +85°C |
| Interface | SPI-compatible serial interface |
Key Features
- High DC/AC accuracy providing better measurement quality
- 18-bit resolution with no missing codes
- Integrated reference buffers with VREF = 2.5V to 3.6V
- Scalable ultra-low power supply reducing power consumption
- Flexible low-voltage supplies: 1.8V analog and digital core supply, 1.5V to 3.6V digital interface supply
- High sampling rate SAR architecture enabling fast settling and acquisition
- 1.6 Msps throughput with no pipeline delay
- SPI-/QSPI-/MICROWIRE®/DSP-compatible serial interface
- Small package size: 20-pin, 4mm x 4mm, TQFN
Applications
- Automatic Test Equipment
- Battery-Powered Equipment
- Data Acquisition Systems
- Medical Instrumentation
- Process Control and Industrial Automation
- Telecommunications
- Test and Measurement
Q & A
- What is the resolution of the MAX11903ETP+ ADC?
The MAX11903ETP+ has an 18-bit resolution.
- What is the sampling rate of the MAX11903ETP+?
The sampling rate is 1.6 Msps.
- What is the input range of the MAX11903ETP+?
The input range is unipolar differential ±VREF.
- What are the supply voltages for the MAX11903ETP+?
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 supply.
- What is the Signal-to-Noise Ratio (SNR) of the MAX11903ETP+?
The SNR is 98 dB at f_IN = 10 kHz.
- What is the Total Harmonic Distortion (THD) of the MAX11903ETP+?
The THD is -123 dB at f_IN = 10 kHz.
- What is the power consumption of the MAX11903ETP+ at 1.6 Msps?
The power consumption is 9 mW at 1.6 Msps.
- What is the package type and size of the MAX11903ETP+?
The package is a 20-pin, 4mm x 4mm, TQFN.
- What is the operating temperature range of the MAX11903ETP+?
The operating temperature range is -40°C to +85°C.
- What type of serial interface does the MAX11903ETP+ use?
The MAX11903ETP+ uses a SPI-compatible serial interface.
