Overview
The AD9218BSTZ-40 is a dual 10-bit monolithic sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is known for its low power consumption, high performance, and ease of use. It operates at conversion rates of 40, 65, 80, and 105 MSPS, making it suitable for a variety of high-speed applications. The AD9218 features on-chip track-and-hold circuits and requires only a single 3.0 V power supply and a clock for full operation, eliminating the need for external reference or driver components in many cases.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Sampling Rate | 40, 65, 80, 105 MSPS |
| Power Supply | 3.0 V (2.7 V to 3.6 V) |
| Power Consumption | 275 mW at 105 MSPS per channel |
| Analog Input Range | 1 V p-p or 2 V p-p |
| Analog Bandwidth | 300 MHz each channel |
| SNR | 57 dB @ 41 MHz, Encode = 80 MSPS |
| Crosstalk | –75 dBc between channels |
| Output Format | Twos complement or offset binary |
| Package | 48-Lead LQFP (7mm x 7mm) |
| Operating Temperature | –40°C to +85°C |
Key Features
- Dual 10-bit ADC with on-chip track-and-hold circuits
- Low power consumption: 275 mW at 105 MSPS per channel
- On-chip reference and user controls for flexibility in system design
- 300 MHz analog bandwidth each channel
- High SNR: 57 dB @ 41 MHz, Encode = 80 MSPS
- 1 V p-p or 2 V p-p analog input range each channel
- 3.0 V single-supply operation (2.7 V to 3.6 V)
- Power-down mode for single-channel operation
- Twos complement or offset binary output mode
- Output data alignment mode
- Pin compatible with the 8-bit AD9288
- Low crosstalk: –75 dBc between channels
Applications
- Battery-powered instruments
- Hand-held scopemeters
- Low cost digital oscilloscopes
- I and Q communications
- Ultrasound equipment
Q & A
- What is the resolution of the AD9218BSTZ-40?
The AD9218BSTZ-40 has a resolution of 10 bits. - What are the sampling rates supported by the AD9218BSTZ-40?
The AD9218BSTZ-40 supports sampling rates of 40, 65, 80, and 105 MSPS. - What is the power supply requirement for the AD9218BSTZ-40?
The AD9218BSTZ-40 requires a single 3.0 V power supply (operating range: 2.7 V to 3.6 V). - How much power does the AD9218BSTZ-40 consume at 105 MSPS?
The AD9218BSTZ-40 consumes 275 mW of power per channel at 105 MSPS. - What is the analog input range of the AD9218BSTZ-40?
The analog input range of the AD9218BSTZ-40 is 1 V p-p or 2 V p-p. - What is the analog bandwidth of the AD9218BSTZ-40?
The analog bandwidth of the AD9218BSTZ-40 is 300 MHz for each channel. - What is the SNR of the AD9218BSTZ-40 at 41 MHz and 80 MSPS?
The SNR of the AD9218BSTZ-40 is 57 dB at 41 MHz and 80 MSPS. - What is the crosstalk between channels in the AD9218BSTZ-40?
The crosstalk between channels in the AD9218BSTZ-40 is –75 dBc. - Is the AD9218BSTZ-40 pin compatible with other ADCs?
Yes, the AD9218BSTZ-40 is pin compatible with the 8-bit AD9288. - What are some typical applications of the AD9218BSTZ-40?
The AD9218BSTZ-40 is typically used in battery-powered instruments, hand-held scopemeters, low cost digital oscilloscopes, I and Q communications, and ultrasound equipment.
