Overview
The MAX11902ETP+T is an 18-bit, 1Msps (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 renowned for its excellent static and dynamic performance, coupled with best-in-class power consumption that scales directly with throughput. The MAX11902 features internal reference buffers, which help minimize board space, component count, and system cost. It is designed to operate over a wide temperature range of -40°C to +85°C, making it suitable for various industrial and medical applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sampling Rate | 1 Msps |
| Input Type | Fully differential |
| Reference 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) | 98.9 dB |
| Total Harmonic Distortion (THD) | -123 dB |
| Integral Non-Linearity (INL) | 1.5 LSB (max) |
| Interface | SPI-compatible serial interface |
| Package | 20-pin, 4mm x 4mm TQFN |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Internal reference buffers to reduce board space and system cost.
- Excellent static and dynamic performance with best-in-class power consumption.
- High resolution of 18 bits with no missing codes.
- Low power consumption that scales with throughput.
- Flexible, industry-standard serial interface (SPI-/QSPI-/MICROWIRE-compatible).
- Compact 20-pin, 4mm x 4mm TQFN package.
Applications
- Test and Measurement
- Automatic Test Equipment
- Medical Instrumentation
- Process Control and Industrial Automation
Q & A
- What is the resolution of the MAX11902 ADC?
The MAX11902 has a resolution of 18 bits. - What is the sampling rate of the MAX11902?
The sampling rate is 1 Msps (mega-samples per second). - What type of input does the MAX11902 support?
The MAX11902 supports fully differential inputs. - What are the supply voltages for the MAX11902?
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 MAX11902?
The SNR is 98.9 dB. - What is the total harmonic distortion (THD) of the MAX11902?
The THD is -123 dB. - What is the integral non-linearity (INL) of the MAX11902?
The INL is 1.5 LSB (max). - What type of interface does the MAX11902 use?
The MAX11902 uses a SPI-compatible serial interface. - What is the package type and size of the MAX11902?
The MAX11902 is offered in a 20-pin, 4mm x 4mm TQFN package. - What is the operating temperature range of the MAX11902?
The operating temperature range is -40°C to +85°C.
