Overview
The AD7939BCPZ is a high-performance, 10-bit, 8-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. This successive approximation (SAR) ADC is designed for high-speed, low-power applications and operates from a single 2.7 V to 5.25 V power supply. It features a throughput rate of up to 1.5 MSPS and includes a low noise, wide bandwidth, differential track-and-hold amplifier capable of handling input frequencies up to 50 MHz.
The device is available in a 32-lead LFCSP (Lead Frame Chip Scale Package) with an exposed pad, making it suitable for a variety of applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | 8 |
| Throughput Rate | Up to 1.5 MSPS |
| Power Supply | 2.7 V to 5.25 V |
| Analog Input Types | Single-ended, fully differential, pseudo differential |
| Input Frequency Range | Up to 50 MHz |
| On-chip Reference Voltage | 2.5 V ±0.2% @ 25°C, 25 ppm/°C |
| Package Type | 32-Lead LFCSP (5mm x 5mm w/ EP) |
| Operating Temperature Range | –40°C to +85°C |
| Power Dissipation | Low power dissipation at high throughput rates |
Key Features
- High-speed successive approximation (SAR) ADC with throughput rates up to 1.5 MSPS.
- Eight analog input channels with a channel sequencer for sequential conversion.
- Support for single-ended, fully differential, and pseudo differential analog inputs.
- Accurate on-chip 2.5 V reference with the option to use an external reference.
- Low noise, wide bandwidth, differential track-and-hold amplifier.
- Flexible power management options including full shutdown mode (2 µA maximum).
- High speed parallel interface in word/byte modes.
- No pipeline delays.
- Software-configurable analog inputs and control register for setting operating conditions.
Applications
- Data acquisition systems.
- Industrial control systems.
- Medical devices requiring high precision and low power consumption.
- Aerospace and defense applications.
- Automotive systems needing robust and high-speed ADCs.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7939BCPZ ADC?
The AD7939BCPZ has a resolution of 10 bits.
- How many analog input channels does the AD7939BCPZ have?
The AD7939BCPZ has 8 analog input channels.
- What is the maximum throughput rate of the AD7939BCPZ?
The maximum throughput rate is up to 1.5 MSPS.
- What types of analog inputs does the AD7939BCPZ support?
The AD7939BCPZ supports single-ended, fully differential, and pseudo differential analog inputs.
- What is the operating voltage range of the AD7939BCPZ?
The operating voltage range is from 2.7 V to 5.25 V.
- Does the AD7939BCPZ have an on-chip reference voltage?
Yes, the AD7939BCPZ has an accurate on-chip 2.5 V reference voltage.
- What is the package type of the AD7939BCPZ?
The package type is 32-Lead LFCSP (5mm x 5mm w/ EP).
- What is the operating temperature range of the AD7939BCPZ?
The operating temperature range is from –40°C to +85°C.
- Does the AD7939BCPZ have power management options?
Yes, it has flexible power management options, including a full shutdown mode.
- How is the conversion process controlled in the AD7939BCPZ?
The conversion process is controlled using standard control inputs that allow easy interfacing with microprocessors and DSPs.
