Overview
The AD9238BCPZRL-65 is a high-performance, dual 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for applications requiring high-speed and low-power consumption. It features dual high-performance sample-and-hold amplifiers (SHAs) and an integrated voltage reference, ensuring 12-bit accuracy and no missing codes over the full operating temperature range up to 65 MSPS data rates.
Fabricated on an advanced CMOS process, the AD9238BCPZRL-65 is available in a Pb-free, space-saving 64-lead LFCSP package and is specified over the industrial temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | 20/40/65 MSPS |
| Supply Voltage | 2.7 V to 3.6 V |
| Power Consumption | 300 mW/channel at 65 MSPS |
| Signal-to-Noise Ratio (SNR) | 70 dB (to Nyquist, AD9238-65) |
| Spurious Free Dynamic Range (SFDR) | 80.5 dBc (to Nyquist, AD9238-65) |
| Analog Input Bandwidth | 500 MHz, 3 dB bandwidth |
| Crosstalk Immunity | > 85 dB |
| Analog Input Range | 1 V p-p to 2 V p-p |
| Data Format | Offset binary or twos complement |
| Package Type | 64-lead LFCSP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Integrated dual 12-bit ADC with dual high-performance sample-and-hold amplifiers and an integrated voltage reference.
- Single 3 V supply operation (2.7 V to 3.6 V).
- Low power consumption: 300 mW/channel at 65 MSPS.
- Differential input with 500 MHz, 3 dB bandwidth.
- Exceptional crosstalk immunity > 85 dB.
- Flexible analog input: 1 V p-p to 2 V p-p range.
- Offset binary or twos complement data format.
- Clock duty cycle stabilizer to maintain performance over a wide range of clock duty cycles.
- Output datamux option for single-port operation from either Data Port A or Data Port B.
Applications
- Communications: Direct conversion or IF sampling receivers, WB-CDMA, CDMA2000, WiMAX.
- Imaging: Medical ultrasound equipment.
- Battery-powered instruments: Hand-held oscilloscopes, low-cost digital oscilloscopes.
- Multiplexed systems that switch full-scale voltage levels in successive channels.
- Sampling inputs at frequencies well beyond the Nyquist rate.
Q & A
- What is the resolution of the AD9238BCPZRL-65?
The AD9238BCPZRL-65 has a resolution of 12 bits.
- What are the available sampling rates for the AD9238BCPZRL-65?
The AD9238BCPZRL-65 is available in speed grades of 20 MSPS, 40 MSPS, and 65 MSPS.
- What is the power consumption of the AD9238BCPZRL-65 at 65 MSPS?
The power consumption is 300 mW per channel at 65 MSPS.
- What is the analog input bandwidth of the AD9238BCPZRL-65?
The analog input bandwidth is 500 MHz with a 3 dB bandwidth.
- What data formats are supported by the AD9238BCPZRL-65?
The AD9238BCPZRL-65 supports offset binary or twos complement data formats.
- What is the operating temperature range of the AD9238BCPZRL-65?
The operating temperature range is -40°C to +85°C.
- What package types are available for the AD9238BCPZRL-65?
The AD9238BCPZRL-65 is available in a 64-lead LFCSP package.
- Does the AD9238BCPZRL-65 have a clock duty cycle stabilizer?
Yes, the AD9238BCPZRL-65 includes a clock duty cycle stabilizer to maintain performance over a wide range of clock duty cycles.
- What are some typical applications of the AD9238BCPZRL-65?
Typical applications include communications, imaging, medical ultrasound, and battery-powered instruments.
- Is the AD9238BCPZRL-65 pin-compatible with other ADC models?
Yes, it is pin-compatible with the AD9248, a 14-bit ADC.
