Overview
The AD9248BSTZ-40 is a high-performance, dual 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD9248 series, which features single 3 V supply operation and is designed for a wide range of applications requiring high-speed and low-power conversion. The AD9248 uses a multistage differential pipelined architecture with output error correction logic to ensure 14-bit accuracy and guarantee no missing codes over the full operating temperature range.
Fabricated on an advanced CMOS process, the AD9248BSTZ-40 is available in a 64-lead LQFP package and is specified over the industrial temperature range of -40°C to +85°C. It is pin-compatible with the AD9238, making it a versatile option for various system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sample Rate | 40 MSPS |
| Supply Voltage | 2.7 V to 3.6 V |
| Power Consumption | 330 mW at 40 MSPS |
| Signal-to-Noise Ratio (SNR) | 71.6 dBc (to Nyquist) |
| Spurious Free Dynamic Range (SFDR) | 80 dBc (to Nyquist) |
| Input Bandwidth | 500 MHz, 3 dB bandwidth |
| Crosstalk Immunity | > 85 dB |
| Analog Input Range | 1 Vp-p to 2 Vp-p |
| Data Format | Offset binary or twos complement |
| Package Type | 64-lead LQFP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Integrated dual 14-bit analog-to-digital converters
- Single 3 V supply operation (2.7 V to 3.6 V)
- Dual high-performance sample-and-hold amplifiers (SHAs) and an integrated voltage reference
- Low power consumption: 330 mW at 40 MSPS
- Differential input with 500 MHz, 3 dB bandwidth
- Exceptional crosstalk immunity > 85 dB
- Flexible analog input: 1 Vp-p to 2 Vp-p range
- Offset binary or twos complement data format
- Clock duty cycle stabilizer
- Output datamux option
Applications
- Ultrasound equipment
- Direct conversion or IF sampling receivers (WB-CDMA, CDMA2000, WiMAX)
- Battery-powered instruments
- Hand-held scopemeters
- Low cost digital oscilloscopes
Q & A
- What is the resolution of the AD9248BSTZ-40?
The AD9248BSTZ-40 has a resolution of 14 bits.
- What are the sample rate options for the AD9248 series?
The AD9248 series offers sample rates of 20 MSPS, 40 MSPS, and 65 MSPS.
- What is the power consumption of the AD9248BSTZ-40 at 40 MSPS?
The power consumption is 330 mW at 40 MSPS.
- What is the input bandwidth of the AD9248BSTZ-40?
The input bandwidth is 500 MHz with a 3 dB bandwidth.
- What data formats are supported by the AD9248BSTZ-40?
The AD9248BSTZ-40 supports offset binary and twos complement data formats.
- What is the operating temperature range of the AD9248BSTZ-40?
The operating temperature range is -40°C to +85°C.
- Is the AD9248BSTZ-40 pin-compatible with other models?
Yes, it is pin-compatible with the AD9238.
- What package type is the AD9248BSTZ-40 available in?
The AD9248BSTZ-40 is available in a 64-lead LQFP package.
- What are some typical applications of the AD9248BSTZ-40?
Typical applications include ultrasound equipment, direct conversion or IF sampling receivers, battery-powered instruments, hand-held scopemeters, and low-cost digital oscilloscopes.
- Does the AD9248BSTZ-40 have a clock duty cycle stabilizer?
Yes, the AD9248BSTZ-40 includes a clock duty cycle stabilizer.
