Overview
The HMCAD1520 is a versatile, high-performance, low-power analog-to-digital converter (ADC) produced by Analog Devices Inc. It features interleaving high-speed modes to increase the sampling rate and is designed for various high-speed data acquisition applications. The ADC integrates cross-point switches, allowing the user to select the input channels, and it employs internal reference circuitry and a serial LVDS output data interface. It is particularly suited for applications requiring high speed, low power consumption, and precise data conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit, 14-bit, and 8-bit modes available |
| Sampling Rate | Up to 1000 MSPS in single channel mode, up to 250 MSPS in quad channel mode |
| Signal-to-Noise Ratio (SNR) | Up to 74 dB in precision mode |
| Spurious Free Dynamic Range (SFDR) | Up to 83 dB in precision mode |
| Power Consumption | 490 mW including I/O at 12-bit 640 MSPS |
| Supply Voltage | 1.8 V |
| Logic Interface Voltage | 1.7 - 3.6 V CMOS |
| Output Interface | Serial LVDS |
| Package | 7 x 7 mm 48 QFN |
| Start-up Time | 0.5 μs from Sleep, 15 μs from Power Down |
Key Features
- High-speed modes: Quad channel (up to 250 MSPS), dual channel (up to 500 MSPS), single channel (up to 1000 MSPS)
- Precision mode: Four channels up to 105 MSPS with high SNR and SFDR
- Integrated cross-point switches for input selection
- Internal low jitter programmable clock divider
- Ultra-low power dissipation
- Internal reference circuitry with no external components required
- Coarse and fine gain control, digital fine gain adjustment for each ADC
- Internal offset correction
- Serial control interface (SPI) for configuration and control
- Full chip idle mode and independent channel power-down capability
Applications
- Precision Oscilloscopes
- Spectrum Analyzers
- Diversity Receivers
- High-End Ultrasound
- Communication Testing
- Non-Destructive Testing
Q & A
- What is the maximum sampling rate of the HMCAD1520 in single channel mode?
The maximum sampling rate in single channel mode is up to 1000 MSPS. - What are the different resolution modes available for the HMCAD1520?
The HMCAD1520 supports 12-bit, 14-bit, and 8-bit resolution modes. - What is the power consumption of the HMCAD1520 at 12-bit 640 MSPS?
The power consumption is 490 mW including I/O at 12-bit 640 MSPS. - What type of output interface does the HMCAD1520 use?
The HMCAD1520 uses a serial LVDS output interface. - How long does it take for the HMCAD1520 to start up from sleep mode?
The start-up time from sleep mode is 0.5 μs. - Can the HMCAD1520 be configured through a serial interface?
Yes, the HMCAD1520 can be configured through a serial control interface (SPI). - What is the package size of the HMCAD1520?
The HMCAD1520 comes in a 7 x 7 mm 48 QFN package. - What are some of the key applications of the HMCAD1520?
Key applications include precision oscilloscopes, spectrum analyzers, diversity receivers, high-end ultrasound, communication testing, and non-destructive testing. - Does the HMCAD1520 have integrated cross-point switches?
Yes, the HMCAD1520 has integrated cross-point switches for input selection. - Can individual channels of the HMCAD1520 be powered down independently?
Yes, each channel can be powered down independently.
