Overview
The AD9238BSTZRL-65 is a high-performance, dual 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD9238 series, which features dual high-performance sample-and-hold amplifiers and an integrated voltage reference. The AD9238 is designed to operate at speeds of up to 65 MSPS and is fabricated on an advanced CMOS process, ensuring high accuracy and reliability over a wide range of operating temperatures.
The device is available in a space-saving 64-lead LQFP or LF-CSP package and is specified over the industrial temperature range of -40°C to +85°C. It is particularly suited for applications requiring high-speed data conversion with low power consumption and excellent signal integrity.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | Up to 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 LQFP or LF-CSP |
| 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 for standards like WB-CDMA, CDMA2000, and WiMAX.
- Imaging: Medical ultrasound equipment.
- Battery-powered instruments: Hand-held oscilloscopes and low-cost digital oscilloscopes.
- Multiplexed systems: Suitable for systems that switch full-scale voltage levels in successive channels and for sampling inputs at frequencies well beyond the Nyquist rate.
Q & A
- What is the resolution and sampling rate of the AD9238BSTZRL-65?
The AD9238BSTZRL-65 is a 12-bit ADC with a sampling rate of up to 65 MSPS.
- What is the power consumption of the AD9238BSTZRL-65 at 65 MSPS?
The power consumption is 300 mW per channel at 65 MSPS.
- What is the signal-to-noise ratio (SNR) of the AD9238BSTZRL-65?
The SNR is 70 dB (to Nyquist, AD9238-65).
- What is the spurious-free dynamic range (SFDR) of the AD9238BSTZRL-65?
The SFDR is 80.5 dBc (to Nyquist, AD9238-65).
- What is the analog input bandwidth of the AD9238BSTZRL-65?
The analog input bandwidth is 500 MHz, 3 dB bandwidth.
- What is the crosstalk immunity of the AD9238BSTZRL-65?
The crosstalk immunity is greater than 85 dB.
- What are the available data formats for the AD9238BSTZRL-65?
The data formats available are offset binary or twos complement.
- Does the AD9238BSTZRL-65 have a clock duty cycle stabilizer?
Yes, the AD9238BSTZRL-65 includes a clock duty cycle stabilizer to maintain performance over a wide range of clock duty cycles.
- What are the typical applications of the AD9238BSTZRL-65?
Typical applications include communications, imaging (medical ultrasound), and battery-powered instruments like hand-held oscilloscopes.
- What is the operating temperature range of the AD9238BSTZRL-65?
The operating temperature range is -40°C to +85°C.
