Overview
The MAX11904ETP+ is a 20-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 designed to provide high DC and AC accuracy, making it suitable for a variety of precision data acquisition applications. The MAX11904ETP+ features internal reference buffers, a unipolar differential ±VREF input range, and scalable ultra-low power consumption that directly scales with throughput.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of Bits | 20 |
| Sampling Rate | 1 Msps |
| Number of Inputs | 1 |
| Input Type | Differential |
| Data Interface | SPI, DSP |
| Configuration | S/H-ADC |
| Architecture | SAR |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 1.7V ~ 1.9V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 20-WFQFN Exposed Pad |
| Mounting Type | Surface Mount |
Key Features
- High DC/AC Accuracy: Provides 20-bit resolution with no missing codes, ±6 LSB INL (max), and ±0.9 LSB DNL at 20 bits.
- High Sampling Rate: 1 Msps throughput with no pipeline delay.
- Integration Simplifies Design: Integrated reference buffers and ±VREF unipolar differential analog input range.
- Scalable Ultra-Low Power: Consumes 6.7 mW at 1 Msps, scaling as 6.7 µW/ksps.
- Flexible Low-Voltage Supplies: 1.8V analog and digital core supply, 1.5V to 3.6V digital interface supply, and 3.3V REFVDD reference buffer supply.
- High Performance Metrics: Achieves 99.2 dB SNR, 99.2 dB SINAD, 125 dB SFDR, and -123 dB THD at fIN = 10 kHz.
Applications
- Test and Measurement: Ideal for precision measurement instruments.
- Automatic Test Equipment: Used in automated testing systems.
- Medical Instrumentation: Suitable for medical devices requiring high accuracy.
- Process Control and Industrial Automation: Applied in industrial control systems.
- Data Acquisition Systems: Used in various data acquisition applications.
- Telecommunications: Employed in telecommunications equipment.
- Battery-Powered Equipment: Beneficial for battery-powered devices due to low power consumption.
Q & A
- What is the resolution of the MAX11904ETP+ ADC?
The MAX11904ETP+ has a 20-bit resolution.
- What is the sampling rate of the MAX11904ETP+?
The sampling rate is 1 Msps (mega-samples per second).
- What type of input does the MAX11904ETP+ support?
The MAX11904ETP+ supports differential inputs.
- What is the data interface of the MAX11904ETP+?
The data interface is SPI and DSP compatible.
- What is the architecture of the MAX11904ETP+ ADC?
The architecture is Successive Approximation Register (SAR).
- What are the operating temperature ranges for the MAX11904ETP+?
The operating temperature range is -40°C to 85°C.
- What is the package type of the MAX11904ETP+?
The package type is 20-WFQFN Exposed Pad.
- How much power does the MAX11904ETP+ consume at 1 Msps?
The power consumption is 6.7 mW at 1 Msps.
- What are some key performance metrics of the MAX11904ETP+?
It achieves 99.2 dB SNR, 99.2 dB SINAD, 125 dB SFDR, and -123 dB THD at fIN = 10 kHz.
- In what applications is the MAX11904ETP+ commonly used?
It is used in test and measurement, automatic test equipment, medical instrumentation, process control, data acquisition systems, telecommunications, and battery-powered equipment.
- Is the MAX11904ETP+ RoHS compliant?
Yes, the MAX11904ETP+ is lead-free and RoHS compliant.
