Overview
The AD9245BCPZRL7-20, produced by Analog Devices Inc., is a high-performance, monolithic 14-bit analog-to-digital converter (ADC). It operates from a single 3 V power supply and features a multistage differential pipelined architecture with output error correction logic. This ADC is designed to provide 14-bit accuracy and guarantee no missing codes over the full operating temperature range of –40°C to +85°C. The AD9245 is fabricated on an advanced CMOS process and is available in a 32-lead LFCSP package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 bits | |
| Conversion Rates | 20, 40, 65, 80 | MSPS |
| Power Supply | 2.7 V to 3.6 V | V |
| Power Consumption | 90 mW at 20 MSPS, 165 mW at 40 MSPS, 300 mW at 65 MSPS, 366 mW at 80 MSPS | mW |
| SNR | 72.7 dBc to Nyquist at 80 MSPS | dBc |
| SFDR | 83.0 dBc to Nyquist at 80 MSPS | dBc |
| Input Bandwidth | 500 MHz | MHz |
| DNL | ±0.5 LSB at 80 MSPS | LSB |
| Package Type | 32-Lead LFCSP (5mm x 5mm w/ EP) | |
| Operating Temperature Range | –40°C to +85°C | °C |
Key Features
- Single 3 V supply operation (2.7 V to 3.6 V)
- Low power consumption: 90 mW at 20 MSPS, 165 mW at 40 MSPS, 300 mW at 65 MSPS, and 366 mW at 80 MSPS
- High signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR)
- Differential input with 500 MHz bandwidth and on-chip reference and sample-and-hold
- Flexible analog input range: 1 V p-p to 2 V p-p
- Offset binary or twos complement data format
- Clock duty-cycle stabilizer (DCS) for maintaining ADC performance over a wide range of clock pulse widths
- Out-of-range (OTR) signal for overflow indication
- Pin-compatible with AD9215, AD9235, and AD9236 for simplified migration
Applications
- Medical imaging equipment
- IF sampling in communications receivers (WCDMA, CDMA-One, CDMA-2000, and TDS-CDMA)
- Battery-powered instruments
- Hand-held scopemeters
- Spectrum analyzers
- Power-sensitive military applications
Q & A
- What is the resolution of the AD9245BCPZRL7-20?
The AD9245BCPZRL7-20 has a resolution of 14 bits.
- What are the available conversion rates for the AD9245BCPZRL7-20?
The conversion rates available are 20, 40, 65, and 80 MSPS.
- What is the power supply range for the AD9245BCPZRL7-20?
The power supply range is from 2.7 V to 3.6 V.
- What is the typical power consumption at different conversion rates?
The power consumption is 90 mW at 20 MSPS, 165 mW at 40 MSPS, 300 mW at 65 MSPS, and 366 mW at 80 MSPS.
- What is the signal-to-noise ratio (SNR) of the AD9245BCPZRL7-20 at 80 MSPS?
The SNR is 72.7 dBc to Nyquist at 80 MSPS.
- What is the spurious-free dynamic range (SFDR) of the AD9245BCPZRL7-20 at 80 MSPS?
The SFDR is 83.0 dBc to Nyquist at 80 MSPS.
- What is the input bandwidth of the AD9245BCPZRL7-20?
The input bandwidth is 500 MHz.
- Is the AD9245BCPZRL7-20 pin-compatible with other ADC models?
Yes, it is pin-compatible with the AD9215, AD9235, and AD9236.
- What are some of the key applications of the AD9245BCPZRL7-20?
Key applications include medical imaging equipment, IF sampling in communications receivers, battery-powered instruments, hand-held scopemeters, spectrum analyzers, and power-sensitive military applications.
- What is the operating temperature range of the AD9245BCPZRL7-20?
The operating temperature range is from –40°C to +85°C.
