Overview
The AD7938BSUZ is a high-performance, 12-bit, successive approximation (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7938 series and is known for its high speed, low power consumption, and versatile input configurations. The AD7938BSUZ operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1.5 MSPS, making it suitable for a wide range of applications requiring high-speed data acquisition.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Throughput Rate | Up to 1.5 MSPS |
| Power Supply | 2.7 V to 5.25 V |
| Analog Input Channels | 8 channels |
| Input Types | Single-ended, fully differential, pseudo differential |
| Input Frequency | Up to 50 MHz |
| Reference Voltage | On-chip 2.5 V, or external reference |
| Package Type | 32-Lead TQFP (7mm x 7mm x 1mm) |
Key Features
- Low noise, wide bandwidth, differential track-and-hold amplifier.
- Channel sequencer for preprogrammed selection of channels to be converted sequentially.
- Flexible power management options and low power dissipation at high throughput rates.
- On-chip control register for setting up different operating conditions, including analog input range and configuration, output coding, and channel sequencing.
- Ease of interfacing with microprocessors and DSPs through standard control inputs.
Applications
The AD7938BSUZ is suitable for various high-speed data acquisition applications, including industrial automation, medical devices, automotive systems, and telecommunications. Its ability to handle high input frequencies and its flexible input configurations make it a versatile component for a wide range of digital signal processing and control systems.
Q & A
- What is the resolution of the AD7938BSUZ?
The AD7938BSUZ has a resolution of 12 bits. - What is the maximum throughput rate of the AD7938BSUZ?
The maximum throughput rate is up to 1.5 MSPS. - What are the power supply requirements for the AD7938BSUZ?
The component operates from a single 2.7 V to 5.25 V power supply. - How many analog input channels does the AD7938BSUZ have?
The AD7938BSUZ features eight analog input channels. - What types of analog inputs can the AD7938BSUZ handle?
The component can handle single-ended, fully differential, or pseudo differential analog inputs. - What is the maximum input frequency the AD7938BSUZ can handle?
The maximum input frequency is up to 50 MHz. - Does the AD7938BSUZ have an on-chip reference voltage?
Yes, it has an on-chip 2.5 V reference, but it can also be overdriven by an external reference. - What package type is the AD7938BSUZ available in?
The component is available in a 32-Lead TQFP (7mm x 7mm x 1mm) package. - How does the AD7938BSUZ manage power consumption?
The component uses advanced design techniques to achieve very low power dissipation at high throughput rates and features flexible power management options. - Can the AD7938BSUZ be easily interfaced with microprocessors and DSPs?
Yes, the conversion process and data acquisition are controlled using standard control inputs that allow easy interfacing with microprocessors and DSPs.
