Overview
The MAX11169EUB+ is a 16-bit, 250ksps 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, featuring a true bipolar input range of ±5V (10VP-P) and operating from a single 5V analog supply. It integrates a low-drift internal reference with an internal buffer, reducing the need for external references and saving on cost and space. The MAX11169EUB+ is designed for high-accuracy applications, achieving 93dB Signal-to-Noise Ratio (SNR) at 10kHz and -101dB Total Harmonic Distortion (THD).
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | 250 ksps |
| Input Range | ±5V (10VP-P) |
| Analog Supply Voltage (VDD) | 4.75V to 5.25V |
| Digital Supply Voltage (OVDD) | 2.3V to 5.25V |
| Analog Supply Current (IVDD) | 5.0 mA to 6.5 mA |
| Interface Supply Current (IOVDD) | 0.8 mA to 2.7 mA (depending on OVDD) |
| Power Dissipation | 33 mW (VDD = 5V, VOVDD = 3.3V) |
| SNR at 10kHz | 93 dB |
| THD | -101 dB |
| Integral Nonlinearity (INL) | ±0.5 LSB (typ) |
| Aperture Delay | 2.5 ns |
| Aperture Jitter | 50 psRMS |
Key Features
- True Bipolar Input Range: Measures ±5V (10VP-P) input range.
- Internal Reference: Integrates a low-drift internal reference with an internal buffer.
- High Accuracy: Achieves 93dB SNR at 10kHz and -101dB THD.
- Pseudo-Differential Inputs: Both inputs (AIN+ and AIN-) are sampled with a pseudo-differential on-chip track-and-hold.
- Low Power Consumption: Operates with low power dissipation of 33 mW (VDD = 5V, VOVDD = 3.3V).
- Flexible Interface: Communicates using an SPI-compatible serial interface at 2.5V, 3V, 3.3V, or 5V logic.
- Daisy-Chaining Capability: Allows daisy-chaining of multiple ADCs for multichannel applications.
- Busy Indicator Option: Provides a busy indicator for simplified system synchronization and timing.
Applications
- Industrial Automation: Suitable for precision measurement and control systems.
- Medical Devices: Ideal for medical equipment requiring high accuracy and reliability.
- Aerospace and Defense: Used in various military and aerospace applications where high precision is critical.
- Test and Measurement Equipment: Employed in oscilloscopes, multimeters, and other precision measurement tools.
- Automotive Systems: Applied in automotive sensors and control systems requiring high accuracy and reliability.
Q & A
- What is the resolution of the MAX11169EUB+ ADC?
The MAX11169EUB+ has a resolution of 16 bits.
- What is the sampling rate of the MAX11169EUB+?
The sampling rate is 250 ksps.
- What is the input voltage range of the MAX11169EUB+?
The input voltage range is ±5V (10VP-P).
- What are the supply voltage ranges for the MAX11169EUB+?
The analog supply voltage (VDD) ranges from 4.75V to 5.25V, and the digital supply voltage (OVDD) ranges from 2.3V to 5.25V.
- How much power does the MAX11169EUB+ consume?
The power dissipation is 33 mW when VDD = 5V and VOVDD = 3.3V.
- What is the SNR of the MAX11169EUB+ at 10kHz?
The SNR at 10kHz is 93 dB.
- Does the MAX11169EUB+ support daisy-chaining?
Yes, it supports daisy-chaining of multiple ADCs for multichannel applications.
- What type of interface does the MAX11169EUB+ use?
The MAX11169EUB+ uses an SPI-compatible serial interface.
- What is the aperture delay of the MAX11169EUB+?
The aperture delay is 2.5 ns.
- What are the typical applications of the MAX11169EUB+?
It is suitable for industrial automation, medical devices, aerospace and defense, test and measurement equipment, and automotive systems.
