Overview
The AD9245BCPZ-20, produced by Analog Devices Inc., is a monolithic, single 3 V supply, 14-bit analog-to-digital converter (ADC) designed for high-performance applications. It features a multistage differential pipelined architecture with output error correction logic, ensuring 14-bit accuracy and no missing codes over the full operating temperature range. The ADC operates at conversion rates of 20 MSPS and is suitable for various applications requiring high-speed and low-power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Conversion Rate | 20 MSPS |
| Power Supply | Single 3 V (2.7 V to 3.6 V) |
| Power Consumption | 90 mW at 20 MSPS |
| Signal-to-Noise Ratio (SNR) | 72.7 dBc to Nyquist at 20 MSPS |
| Spurious Free Dynamic Range (SFDR) | 83.0 dBc to Nyquist at 20 MSPS |
| Differential Nonlinearity (DNL) | ±0.5 LSB at 20 MSPS |
| Input Bandwidth | 500 MHz |
| Package Type | 32-Lead LFCSP (5mm x 5mm w/ EP) |
| Operating Temperature Range | –40°C to +85°C |
Key Features
- Single 3 V supply operation with a separate digital output driver supply to accommodate 2.5 V and 3.3 V logic families.
- Low power consumption: 90 mW at 20 MSPS.
- High performance sample-and-hold amplifier (SHA) with 500 MHz bandwidth.
- On-chip reference and sample-and-hold.
- Flexible analog input ranges: 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 AD9245BCPZ-20?
The AD9245BCPZ-20 has a resolution of 14 bits. - What are the conversion rates supported by the AD9245BCPZ-20?
The AD9245BCPZ-20 supports a conversion rate of 20 MSPS. - What is the power supply requirement for the AD9245BCPZ-20?
The AD9245BCPZ-20 operates from a single 3 V power supply (2.7 V to 3.6 V). - How much power does the AD9245BCPZ-20 consume at 20 MSPS?
The AD9245BCPZ-20 consumes 90 mW at 20 MSPS. - What is the signal-to-noise ratio (SNR) of the AD9245BCPZ-20 at 20 MSPS?
The SNR is 72.7 dBc to Nyquist at 20 MSPS. - What is the spurious free dynamic range (SFDR) of the AD9245BCPZ-20 at 20 MSPS?
The SFDR is 83.0 dBc to Nyquist at 20 MSPS. - What is the differential nonlinearity (DNL) of the AD9245BCPZ-20 at 20 MSPS?
The DNL is ±0.5 LSB at 20 MSPS. - What is the input bandwidth of the AD9245BCPZ-20?
The input bandwidth is 500 MHz. - In what package is the AD9245BCPZ-20 available?
The AD9245BCPZ-20 is available in a 32-Lead LFCSP (5mm x 5mm w/ EP). - What is the operating temperature range of the AD9245BCPZ-20?
The operating temperature range is –40°C to +85°C.
