Overview
The MAX19505ETM+T, produced by Analog Devices Inc./Maxim Integrated, is a dual-channel, 8-bit analog-to-digital converter (ADC) designed for high-speed and low-power applications. This device offers a maximum sample rate of 65Msps and is ideal for various high-frequency sampling applications, including zero-intermediate frequency (ZIF) and high-intermediate frequency (IF) sampling. The MAX19505 features excellent dynamic performance, with a typical signal-to-noise ratio (SNR) of 49.8dBFS and a spurious-free dynamic range (SFDR) of 69dBc at 70MHz input frequency and 65MHz clock frequency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8-bit | |
| Maximum Sample Rate | 65Msps | |
| Analog Supply Voltage | 1.8V or 2.5V to 3.3V (AVDD) | V |
| Digital Output Supply Voltage | 1.8V to 3.5V (OVDD) | V |
| Analog Power Consumption per Channel | 43mW at VAVDD = 1.8V | mW |
| Power Consumption in Power-Down Mode | 1mW | mW |
| Power Consumption in Standby Mode | 15mW | mW |
| Input Common-Mode Voltage Range | 0.4V to 1.4V | V |
| Analog Input Bandwidth | > 850MHz | MHz |
| Signal-to-Noise Ratio (SNR) | 49.8dBFS at fIN = 70MHz and fCLK = 65MHz | dBFS |
| Spurious-Free Dynamic Range (SFDR) | 69dBc at fIN = 70MHz and fCLK = 65MHz | dBc |
| Package Type | 48-pin TQFN (7x7 mm) | |
| Operating Temperature Range | -40°C to +85°C | °C |
Key Features
- Very-low-power operation with 43mW per channel at 65Msps
- Single or dual power supply operation (1.8V or 2.5V to 3.3V AVDD)
- Excellent dynamic performance with high SNR and SFDR
- User-programmable adjustments and feature selection through an SPI interface
- Selectable data bus (dual CMOS or single multiplexed CMOS)
- DCLK output and programmable data output timing for simplified high-speed digital interface
- Very wide input common-mode voltage range (0.4V to 1.4V)
- Single-ended or differential analog inputs and clock inputs
- Low power consumption in power-down and standby modes
- Lead(Pb)-free and RoHS compliant
Applications
- IF and baseband communications, including cellular base stations and point-to-point microwave receivers
- Ultrasound and medical imaging
- Portable instrumentation and low-power data acquisition
- Digital set-top boxes
Q & A
- What is the maximum sample rate of the MAX19505?
The MAX19505 has a maximum sample rate of 65Msps.
- What is the resolution of the MAX19505 ADC?
The MAX19505 is an 8-bit analog-to-digital converter.
- What are the operating supply voltage ranges for the MAX19505?
The MAX19505 operates from a 1.8V supply, and an integrated voltage regulator allows operation from a 2.5V to 3.3V supply (AVDD). The digital output drivers operate on an independent supply voltage (OVDD) over the 1.8V to 3.5V range.
- What is the typical power consumption per channel for the MAX19505?
The typical power consumption per channel is 43mW at VAVDD = 1.8V.
- What are the key dynamic performance metrics of the MAX19505?
The MAX19505 has a typical SNR of 49.8dBFS and a typical SFDR of 69dBc at fIN = 70MHz and fCLK = 65MHz.
- What types of analog inputs does the MAX19505 support?
The MAX19505 supports single-ended or differential analog inputs.
- How can the features of the MAX19505 be configured?
The features of the MAX19505 can be configured through programmable registers accessed via a 3-wire serial-port interface or through dedicated pins when the serial interface is disabled.
- What is the package type and size of the MAX19505?
The MAX19505 is available in a 48-pin TQFN package with dimensions of 7x7 mm.
- What are the typical applications of the MAX19505?
The MAX19505 is typically used in IF and baseband communications, ultrasound and medical imaging, portable instrumentation, and digital set-top boxes.
- Is the MAX19505 RoHS compliant?
