Overview
The MAX11040GUU+ is a 24-bit, 4-channel, simultaneous-sampling, sigma-delta analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed for high-accuracy measurement applications and offers advanced features such as cascading capability, programmable sampling phase, and high signal-to-noise ratio (SNR). The MAX11040GUU+ operates from a single 3.0V to 3.6V analog supply and a 2.7V to VAVDD digital supply, making it versatile for various system designs.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24-bit (MAX11040K), 16-bit (MAX11060) |
| Number of Channels | 4 (cascadable up to 32 channels) |
| Sampling Type | Simultaneous sampling |
| ADC Type | Sigma-delta |
| Signal-to-Noise Ratio (SNR) | 117dB at 1ksps, 106dB at 16ksps |
| Analog Input Range | ±2.2V (differential) |
| Overvoltage Protection | ±6V |
| Output Data Rate | 0.25ksps to 64ksps |
| Supply Voltage | 3.0V to 3.6V (analog), 2.7V to VAVDD (digital) |
| Operating Temperature | -40°C to +105°C |
| Package Type | 38-pin TSSOP |
| Interface Compatibility | SPI, QSPI, MICROWIRE, DSP |
Key Features
- Cascadable Design: Allows synchronization of up to eight devices for simultaneous sampling of up to 32 channels.
- Programmable Sampling Phase: Enables phase shift compensation with adjustable sampling phase from 0 to 333μs in 1.33μs steps.
- High SNR: Achieves 117dB SNR at 1ksps and 106dB SNR at 16ksps.
- Programmable Output Data Rate: Adjustable from 0.25ksps to 64ksps with 0.065% resolution.
- Internal Crystal Oscillator: Optionally uses an external clock source.
- Internal/External Reference: Supports both internal (2.5V, 50ppm/°C) and external reference voltages.
- Overvoltage Protection: Inputs are protected up to ±6V without damage.
- Single-Supply Operation: Operates from a single 3.0V to 3.6V analog supply and 2.7V to VAVDD digital supply.
Applications
- Industrial Data Acquisition Systems: Ideal for high-accuracy measurement applications.
- Medical Instrumentation: Suitable for precise medical measurements.
- Multiphase Power Systems: Used in power management and protection systems.
- Power Protection Relay Equipment: Enhances reliability in power protection systems.
- Automatic Test Equipment: Utilized in automated testing and calibration.
- Portable Instrumentation: Suitable for handheld and battery-powered devices.
- Process Control and Servo Loops: Used in industrial control systems.
Q & A
- What is the resolution of the MAX11040GUU+ ADC?
The MAX11040GUU+ has a 24-bit resolution, while the MAX11060 has a 16-bit resolution.
- How many channels can the MAX11040GUU+ support simultaneously?
The device supports 4 channels and can be cascaded to support up to 32 channels simultaneously.
- What is the signal-to-noise ratio (SNR) of the MAX11040GUU+?
The SNR is 117dB at 1ksps and 106dB at 16ksps.
- What is the analog input range of the MAX11040GUU+?
The differential analog input range is ±2.2V.
- Does the MAX11040GUU+ have overvoltage protection?
Yes, the inputs are protected up to ±6V without damage.
- What are the supply voltage requirements for the MAX11040GUU+?
The device operates from a single 3.0V to 3.6V analog supply and a 2.7V to VAVDD digital supply.
- What interfaces is the MAX11040GUU+ compatible with?
The device is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- Can the MAX11040GUU+ be used in industrial applications?
Yes, it is suitable for industrial data acquisition systems and other industrial applications due to its high accuracy and robust design.
- Is the MAX11040GUU+ suitable for medical instrumentation?
Yes, it is suitable for precise medical measurements due to its high SNR and simultaneous sampling capabilities.
- What is the operating temperature range of the MAX11040GUU+?
The operating temperature range is -40°C to +105°C.
