Overview
The AD9642BCPZRL7-210, produced by Analog Devices Inc., is a high-performance 14-bit analog-to-digital converter (ADC) designed to meet the demands of various communication and high-speed data acquisition applications. This ADC features sampling speeds of up to 250 MSPS, making it suitable for applications requiring low cost, small size, wide bandwidth, and versatility. The AD9642 incorporates a multistage, differential pipelined architecture with integrated output error correction logic, ensuring high accuracy and reliability. It operates from a single 1.8 V supply and includes a separate digital output driver supply to accommodate LVDS outputs. The device is available in a 32-lead LFCSP package and is specified over the industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 14 bits | - | - | - |
| Sampling Rate | - | 170/210/250 MSPS | - | MSPS |
| Signal-to-Noise Ratio (SNR) | - | 71.0 dBFS at 185 MHz | - | dBFS |
| Spurious-Free Dynamic Range (SFDR) | - | 83 dBc at 185 MHz | - | dBc |
| Input Noise | - | −152.0 dBFS/Hz at 200 MHz, −1 dBFS | - | dBFS/Hz |
| Total Power Consumption | - | 390 mW at 250 MSPS | - | mW |
| Supply Voltage | - | 1.8 V | - | V |
| Output Type | - | LVDS (ANSI-644 levels) | - | - |
| Analog Input Range | - | 1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal) | - | V p-p |
| Temperature Range | −40°C | - | +85°C | °C |
Key Features
- Integrated 14-bit ADC with sampling speeds of up to 250 MSPS.
- Operation from a single 1.8 V supply and a separate digital output driver supply accommodating LVDS outputs.
- Proprietary differential input maintains excellent SNR performance for input frequencies of up to 350 MHz.
- 3-pin, 1.8 V SPI port for register programming and readback.
- Pin compatibility with the AD9634 and AD6672, allowing simple migration between different bit resolutions.
- Internal ADC voltage reference and duty cycle stabilizer (DCS) to maintain performance.
- Flexible analog input range of 1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal).
- Flexible power-down options for significant power savings.
Applications
- Communications systems
- Diversity radio systems
- Multimode digital receivers (3G, TD-SCDMA, WiMax, WCDMA, CDMA2000, GSM, EDGE, LTE)
- I/Q demodulation systems
- Smart antenna systems
- General-purpose software radios
- Ultrasound equipment
- Broadband data applications.
Q & A
- What is the maximum sampling rate of the AD9642BCPZRL7-210?
The AD9642BCPZRL7-210 has a maximum sampling rate of 250 MSPS.
- What is the resolution of the AD9642BCPZRL7-210?
The AD9642BCPZRL7-210 is a 14-bit analog-to-digital converter.
- What type of output does the AD9642BCPZRL7-210 use?
The AD9642BCPZRL7-210 uses LVDS (ANSI-644 levels) outputs.
- What is the operating supply voltage for the AD9642BCPZRL7-210?
The AD9642BCPZRL7-210 operates from a single 1.8 V supply.
- What is the temperature range for the AD9642BCPZRL7-210?
The AD9642BCPZRL7-210 is specified over the industrial temperature range of −40°C to +85°C.
- What is the total power consumption of the AD9642BCPZRL7-210 at 250 MSPS?
The total power consumption at 250 MSPS is 390 mW.
- Does the AD9642BCPZRL7-210 have an integrated voltage reference?
Yes, the AD9642BCPZRL7-210 has an integrated ADC voltage reference.
- What is the purpose of the duty cycle stabilizer (DCS) in the AD9642BCPZRL7-210?
The duty cycle stabilizer (DCS) compensates for variations in the ADC clock duty cycle, allowing the converter to maintain excellent performance.
- How is programming for setup and control accomplished on the AD9642BCPZRL7-210?
Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.
- What are some common applications of the AD9642BCPZRL7-210?
Common applications include communications systems, diversity radio systems, multimode digital receivers, I/Q demodulation systems, smart antenna systems, general-purpose software radios, ultrasound equipment, and broadband data applications.
