Overview
The AD9269BCPZRL7-20 is a high-performance, dual-channel, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This monolithic ADC operates on a 1.8 V supply and is capable of sampling rates of 20 MSPS. It features a multistage differential pipeline architecture with output error correction logic, ensuring 16-bit accuracy and no missing codes over the full operating temperature range of −40°C to +85°C.
The device is packaged in a 64-lead RoHS-compliant LFCSP and supports various digital output formats such as offset binary, gray code, or twos complement. It also includes an integrated quadrature error correction (QEC) block, which corrects for dc offset, gain, and phase mismatch between the two channels, making it highly suitable for complex signal processing applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Sampling Rate | 20 MSPS | |
| Analog Supply Voltage | 1.8 V | |
| Output Supply Voltage | 1.8 V to 3.3 V | |
| SNR at 9.7 MHz input | 77.6 dBFS | |
| SNR at 200 MHz input | 71 dBFS | |
| SFDR at 9.7 MHz input | 93 dBc | |
| SFDR at 200 MHz input | 80 dBc | |
| Power Consumption at 20 MSPS | 44 mW per channel | |
| Analog Input Bandwidth | 700 MHz | |
| Differential Analog Input Range | 2V p-p | |
| DNL | −0.5/+1.1 LSB | |
| Package Type | 64-Lead LFCSP (9mm x 9mm x 0.75mm) |
Key Features
- Integrated quadrature error correction (QEC) for dc offset, gain, and phase mismatch correction
- High performance sample-and-hold circuit and on-chip voltage reference
- Differential input with 700 MHz bandwidth
- Low power consumption: 44 mW per channel at 20 MSPS
- Serial port control options for programmable settings
- Optional clock duty cycle stabilizer (DCS) for maintaining ADC performance
- Support for offset binary, gray code, or twos complement data format
- Programmable clock and data alignment, and digital test pattern generation
Applications
- Communications systems, including diversity radio systems and multimode digital receivers (GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA)
- I/Q demodulation systems and smart antenna systems
- Battery-powered instruments and hand-held scope meters
- Portable medical imaging and ultrasound systems
- Radar/LIDAR systems
Q & A
- What is the resolution and sampling rate of the AD9269BCPZRL7-20?
The AD9269BCPZRL7-20 is a 16-bit ADC with a sampling rate of 20 MSPS.
- What is the analog supply voltage for the AD9269BCPZRL7-20?
The analog supply voltage is 1.8 V.
- What are the supported output supply voltages for the AD9269BCPZRL7-20?
The output supply voltages supported are 1.8 V to 3.3 V.
- What is the SNR of the AD9269BCPZRL7-20 at a 9.7 MHz input?
The SNR at a 9.7 MHz input is 77.6 dBFS.
- What is the power consumption per channel at 20 MSPS?
The power consumption per channel at 20 MSPS is 44 mW.
- What is the bandwidth of the differential analog input?
The bandwidth of the differential analog input is 700 MHz.
- Does the AD9269BCPZRL7-20 support programmable clock and data alignment?
Yes, it supports programmable clock and data alignment.
- What types of data formats are supported by the AD9269BCPZRL7-20?
The supported data formats include offset binary, gray code, and twos complement.
- What is the purpose of the integrated quadrature error correction (QEC) block?
The QEC block corrects for dc offset, gain, and phase mismatch between the two channels.
- In what types of applications is the AD9269BCPZRL7-20 commonly used?
It is commonly used in communications systems, medical imaging, radar/LIDAR systems, and other complex signal processing applications.
