Overview
The MAX11156 is an 18-bit, 500ksps Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This ADC is renowned for its excellent AC and DC performance, true bipolar input range, compact size, and integrated internal reference. It operates from a single 5V supply and can measure a ±5V (10V peak-to-peak) input range. The device is particularly notable for its patented charge-pump architecture, which enables direct sampling of high-impedance sources.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 18 bits |
| Sampling Rate | 500 ksps |
| Input Range | ±5V (10V peak-to-peak) |
| Supply Voltage | Single 5V |
| Signal-to-Noise Ratio (SNR) | 94.6 dB (typ) |
| Total Harmonic Distortion (THD) | -101.4 dB (typ) |
| Integral Nonlinearity (INL) | ±2.8 LSB (typ) |
| No-Missing Codes | Guaranteed 18-bit |
| Interface | SPI-compatible serial interface at 2.5V, 3V, 3.3V, or 5V logic |
| Package | 12-pin, 3mm x 3mm TDFN |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- True bipolar input range of ±5V with a single 5V supply.
- Internal reference and buffer, reducing additional cost and space.
- Patented charge-pump architecture for direct sampling of high-impedance sources.
- SPI-compatible serial interface for daisy-chaining multiple ADCs and system synchronization.
- Busy indicator option for simplified system timing.
- Compact 12-pin, 3mm x 3mm TDFN package.
Applications
The MAX11156 is suitable for a variety of applications requiring high precision and reliability, such as:
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- High-precision data acquisition systems.
- Automotive systems requiring robust and accurate ADCs.
Q & A
- What is the resolution of the MAX11156 ADC?
The MAX11156 has an 18-bit resolution. - What is the sampling rate of the MAX11156?
The sampling rate is 500 ksps. - What is the input voltage range of the MAX11156?
The input voltage range is ±5V (10V peak-to-peak). - What type of interface does the MAX11156 use?
The MAX11156 uses an SPI-compatible serial interface. - What is the operating temperature range of the MAX11156?
The operating temperature range is -40°C to +85°C. - Does the MAX11156 have an internal reference?
Yes, the MAX11156 includes an optional internal reference and buffer. - What is the package type of the MAX11156?
The MAX11156 is available in a 12-pin, 3mm x 3mm TDFN package. - Can multiple MAX11156 ADCs be daisy-chained?
Yes, multiple MAX11156 ADCs can be daisy-chained using the SPI-compatible serial interface. - What is the typical SNR of the MAX11156?
The typical SNR is 94.6 dB. - What is the typical THD of the MAX11156?
The typical THD is -101.4 dB.
