Overview
The AD9649BCPZ-20 is a high-performance, 14-bit, single-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. This monolithic ADC operates from a single 1.8 V analog power supply and features a separate digital output driver supply that can accommodate 1.8 V to 3.3 V logic families. It is designed with a multistage differential pipeline architecture and includes output error correction logic to ensure 14-bit accuracy at data rates up to 80 MSPS. The AD9649 is known for its excellent sample-and-hold circuit performance, low power consumption, and ease of use, making it suitable for a variety of high-speed applications.
Key Specifications
| Parameter | Min | Typ | Max |
|---|---|---|---|
| Resolution | 14 bits | 14 bits | 14 bits |
| Sampling Rate | 20 MSPS | - | 80 MSPS |
| Analog Supply Voltage | 1.8 V | - | 1.8 V |
| Digital Output Supply Voltage | 1.8 V | - | 3.3 V |
| SNR at 9.7 MHz input | - | 74.3 dBFS | - |
| SNR at 200 MHz input | - | 71.5 dBFS | - |
| SFDR at 9.7 MHz input | - | 93 dBc | - |
| SFDR at 200 MHz input | - | 80 dBc | - |
| Power Consumption at 20 MSPS | - | 45 mW | - |
| Power Consumption at 80 MSPS | - | 87 mW | - |
| Differential Nonlinearity (DNL) | ±0.35 LSB | - | - |
| Integral Nonlinearity (INL) | ±1.30 LSB | - | - |
| Temperature Range | -40°C | - | +85°C |
| Package Type | 32-Lead LFCSP | - | - |
Key Features
- High performance sample-and-hold circuit with excellent performance for input frequencies up to 200 MHz.
- On-chip voltage reference and sample-and-hold circuit.
- Differential analog input with 2 V p-p and 700 MHz bandwidth.
- Low power consumption: 45 mW at 20 MSPS and 87 mW at 80 MSPS.
- Programmable clock and data alignment, and programmable digital test pattern generation.
- Standard serial port interface (SPI) for various product features and functions.
- Support for offset binary, gray code, or twos complement data format.
- Data output clock (DCO) for proper latch timing with receiving logic.
- Pin compatible with AD9629 12-bit ADC and AD9609 10-bit ADC for easy migration.
Applications
- Communications systems.
- Diversity radio systems.
- Multimode digital receivers, including GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, and TD-SCDMA.
Q & A
- What is the resolution of the AD9649BCPZ-20 ADC?
The AD9649BCPZ-20 has a resolution of 14 bits. - What are the sampling rates supported by the AD9649BCPZ-20?
The AD9649BCPZ-20 supports sampling rates of 20 MSPS, 40 MSPS, 65 MSPS, and 80 MSPS. - What is the analog supply voltage for the AD9649BCPZ-20?
The analog supply voltage for the AD9649BCPZ-20 is 1.8 V. - What are the supported digital output supply voltages for the AD9649BCPZ-20?
The digital output supply voltages supported are 1.8 V to 3.3 V. - What is the SNR of the AD9649BCPZ-20 at a 9.7 MHz input frequency?
The SNR at a 9.7 MHz input frequency is 74.3 dBFS. - What is the SFDR of the AD9649BCPZ-20 at a 200 MHz input frequency?
The SFDR at a 200 MHz input frequency is 80 dBc. - How much power does the AD9649BCPZ-20 consume at 20 MSPS and 80 MSPS?
The power consumption is 45 mW at 20 MSPS and 87 mW at 80 MSPS. - What is the differential nonlinearity (DNL) of the AD9649BCPZ-20?
The DNL is ±0.35 LSB. - What is the temperature range for the AD9649BCPZ-20?
The temperature range is from -40°C to +85°C. - In what package type is the AD9649BCPZ-20 available?
The AD9649BCPZ-20 is available in a 32-Lead LFCSP package.
