Overview
The AD9218BSTZ-40 is a high-performance, dual 10-bit analog-to-digital converter (ADC) designed by Analog Devices Inc. This component is optimized for various data acquisition applications, offering simultaneous sampling, low power consumption, and high dynamic performance. The AD9218 operates with a single 3.0 V power supply and supports a range of sampling rates, including 40, 65, 80, and 105 MSPS. It features on-chip track-and-hold circuits and is known for its ease of use and compatibility with different system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AD9218BSTZ-40 |
| Category | Integrated Circuits (ICs) |
| Description | IC ADC 10BIT DUAL 40MSPS 48-LQFP |
| Package / Case | 48-LQFP (7x7) |
| Voltage - Supply, Digital | 2.7 V ~ 3.6 V |
| Voltage - Supply, Analog | 2.7 V ~ 3.6 V |
| Sampling Rate (Per Second) | 40M |
| Reference Type | Internal |
| Ratio - S/H:ADC | 1:1 |
| Number of Inputs | 2 |
| Number of Bits | 10 |
| Number of A/D Converters | 2 |
| Operating Temperature | -40°C ~ 85°C |
| Input Type | Differential, Single Ended |
| Data Interface | Parallel |
| Configuration | S/H-ADC |
| Architecture | Pipelined |
Key Features
- Simultaneous Sampling: Allows for simultaneous conversion of both channels, which is crucial for applications requiring synchronized data acquisition.
- Dual 10-bit ADCs: Each channel operates independently with a resolution of 10 bits and supports sampling rates of 40, 65, 80, and 105 MSPS.
- Low Power Consumption: The ADC dissipates only 275 mW of power per channel at 105 MSPS, making it suitable for battery-powered devices.
- On-chip Reference and Track-and-Hold: No external reference or driver components are required for many applications, simplifying system design.
- High Analog Bandwidth: Each channel has a 300 MHz analog bandwidth, ensuring high dynamic performance.
- Low Crosstalk: The ADC features very low crosstalk between channels, at –75 dBc.
- Power-down Mode: Supports power-down modes for single-channel operation, reducing power consumption when not in use.
- Flexible Output Formats: Offers twos complement or offset binary output modes and output data alignment options.
- Pin Compatibility: Pin compatible with the 8-bit AD9288, allowing easy migration from 8-bit to 10-bit devices.
Applications
- Data Acquisition Systems: Ideal for high-speed data acquisition in various industrial and scientific applications.
- Instrumentation: Used in hand-held scopemeters, low-cost digital oscilloscopes, and other measurement instruments.
- Medical Devices: Suitable for medical imaging and diagnostic equipment, such as ultrasound devices.
- Communication Equipment: Applied in I and Q communications and other high-speed communication systems.
- Battery-Powered Instruments: Its low power consumption makes it suitable for battery-powered instruments and portable devices.
Q & A
- What is the sampling rate of the AD9218BSTZ-40?
The AD9218BSTZ-40 supports sampling rates of 40, 65, 80, and 105 MSPS.
- What is the resolution of the AD9218BSTZ-40?
The AD9218BSTZ-40 is a dual 10-bit analog-to-digital converter.
- What type of input does the AD9218BSTZ-40 support?
The AD9218BSTZ-40 supports both differential and single-ended input types.
- What is the power supply requirement for the AD9218BSTZ-40?
The AD9218BSTZ-40 operates with a single 3.0 V power supply (2.7 V to 3.6 V) for both analog and digital supplies.
- Does the AD9218BSTZ-40 require external reference components?
No, the AD9218BSTZ-40 has an on-chip reference and track-and-hold circuits, eliminating the need for external reference or driver components in many applications.
- What is the operating temperature range of the AD9218BSTZ-40?
The operating temperature range of the AD9218BSTZ-40 is -40°C to 85°C.
- What is the package type of the AD9218BSTZ-40?
The AD9218BSTZ-40 is packaged in a 48-lead low profile quad flat package (LQFP) with dimensions of 7mm x 7mm.
- Is the AD9218BSTZ-40 pin compatible with other ADCs?
Yes, the AD9218BSTZ-40 is pin compatible with the 8-bit AD9288, allowing for easy migration from 8-bit to 10-bit devices.
- What are the power-down modes available for the AD9218BSTZ-40?
The AD9218BSTZ-40 supports power-down modes for single-channel operation, reducing power consumption when not in use.
- What are the typical applications of the AD9218BSTZ-40?
The AD9218BSTZ-40 is typically used in data acquisition systems, instrumentation, medical devices, communication equipment, and battery-powered instruments.
