Overview
The AD9244BST-40 is a high-performance, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This monolithic device operates on a single 5 V supply and features an on-chip, high-performance sample-and-hold amplifier (SHA) and a programmable voltage reference. The AD9244BST-40 is designed for high-speed applications, supporting conversion rates of up to 40 MSPS. It is fabricated on an advanced CMOS process and is available in a 48-lead LQFP package, making it suitable for a wide range of industrial and commercial applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 14 | - | - | bits |
| Conversion Rate | 500 kHz | - | 40 MSPS | - |
| Analog Supply Voltage | - | 5 V | - | V |
| Driver Supply Voltage | - | 3.3 V / 5 V | - | V |
| Analog Input Range | - | 1 V to 2 V p-p differential | - | V |
| Clock Period | 25 ns | - | - | ns |
| Output Delay (tPD) | 3.5 ns | 7 ns | - | ns |
| Pipeline Delay (Latency) | - | 8 clock cycles | - | - |
| Aperture Delay (tA) | 1.5 ns | - | - | ns |
| Aperture Uncertainty (Jitter) | - | 0.3 ps rms | - | ps |
| Operating Temperature Range | -40°C | - | 85°C | °C |
Key Features
- Low power consumption: 550 mW at 40 MSPS, making it energy-efficient for high-speed applications.
- High-performance sample-and-hold amplifier (SHA) integrated on-chip.
- Programmable voltage reference with the option to use an external reference.
- Differential or single-ended clock input for controlling internal conversion cycles.
- Digital output data presented in straight binary or twos complement format.
- Out-of-range (OTR) signal to indicate overflow conditions.
- Output-enable function and clock duty cycle stabilizer.
- Guaranteed no missing codes over the full operating temperature range.
Applications
The AD9244BST-40 is suitable for various high-speed and high-accuracy applications, including:
- Communication subsystems such as microcell and picocell base stations.
- Medical and high-end imaging equipment.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD9244BST-40 ADC?
The AD9244BST-40 has a resolution of 14 bits. - What are the supported conversion rates for the AD9244BST-40?
The AD9244BST-40 supports conversion rates from 500 kHz to 40 MSPS. - What is the analog supply voltage for the AD9244BST-40?
The analog supply voltage for the AD9244BST-40 is 5 V. - Can the AD9244BST-40 use an external voltage reference?
Yes, the AD9244BST-40 allows the use of an external voltage reference. - What is the operating temperature range of the AD9244BST-40?
The operating temperature range is from -40°C to +85°C. - What is the power consumption of the AD9244BST-40 at 40 MSPS?
The power consumption is approximately 550 mW at 40 MSPS. - Does the AD9244BST-40 have an integrated sample-and-hold amplifier?
Yes, the AD9244BST-40 has an integrated high-performance sample-and-hold amplifier (SHA). - What are the digital output formats supported by the AD9244BST-40?
The digital output data can be presented in straight binary or twos complement format. - How many clock cycles is the pipeline delay (latency) for the AD9244BST-40?
The pipeline delay (latency) is 8 clock cycles. - What is the aperture uncertainty (jitter) of the AD9244BST-40?
The aperture uncertainty (jitter) is 0.3 ps rms.
